Hach ORBISPHERE K1200 Basic User Manual

DOC024.98.93022

ORBISPHERE Model

K1200 Sensor and Model

510 Analyzer

04/2018, Edition 13

Basic User Manual

Allgemeines Benutzerhandbuch

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English..............................................................................................................................3

Deutsch.......................................................................................................................... 25

Italiano............................................................................................................................ 48

Français......................................................................................................................... 71

Español.......................................................................................................................... 94

Čeština......................................................................................................................... 117

Nederlands................................................................................................................. 140

Dansk............................................................................................................................163

Polski............................................................................................................................ 185

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Türkçe...........................................................................................................................278

2

Specifications

Specifications are subject to change without notice.

Specification Details

EMC requirements EN61326-1: EMC Directive

Note: The wall mount instrument is a Class A product. In a domestic environment this product

may cause radio interference in which case the user may be required to take adequate

measures.

CE compliance EN61010-1: LVD Directive

Safety rating ETL, conforming to UL 61010-1 and CSA 22.2 No. 61010-1

Enclosure ratings IP 65; Totally protected against dust; Protected against low pressure jets of water

from all directions.

NEMA 4X (wall mount only); Totally protected against dust; Protected against

pressure jets of water from all directions.

W A R N I N G

Enclosure rating does not apply to external power supply for benchtop

instruments.

Analog outputs 3 Smart 0/4 – 20 mA (500 Ohms), programmable as linear or tri-linear,

configurable to send diagnostics or alarm information.

Measurement alarm relays

on the measurement board

Three alarm relays; 1A-30 VAC or 0.5A-50 VDC on a resistance load

Configurable to Normally Open [NO] or Normally Closed [NC] contacts by

changing the jumper positions

W A R N I N G

Potential Electrocution Hazard. Connect only safety low voltage < 33 VAC

RMS

System alarm relay on the

main board

One system alarm relay; 1A-30 VAC or 0.5A-50 VDC on a resistance load

Normally closed [NC] (NO relay also available) when instrument is turned on

W A R N I N G

Potential Electrocution Hazard. Connect only safety low voltage < 33 VAC

RMS

Digital communication RS485, Profibus DP (optional), Ethernet, USB-host to download data with a USB

memory stick

Data storage Rolling buffer or store once mode for up to 10,000 measurements

Holds calibration records for the last 100 calibrations

Sample temperature Measurement from -5 to 50°C (23 to 122°F)

Sensor resistant to temperature from -5 to 100°C (23 to 212°F)

Sample pressure 1 to 20 bar absolute (14.5 to 290 psia)

Sample types Water only

Measurement range Low range sensors: 0 to 2,000 ppb (dissolved. Indicative values until 5000 ppb)

High range sensors: 0 to 40 ppm (dissolved)

Repeatability Low range sensors: ± 0.4 ppb or 1%, whichever is the greater

High range sensors: ± 0.015 ppm or ± 2% whichever is the greater

Reproducibility Low range sensors: ± 0.8 ppb or 2%, whichever is the greater

High range sensors: ± 0.02 ppm or ± 3% whichever is the greater

Accuracy Low range sensors: ± 0.8 ppb or 2%, whichever is the greater

High range sensors: ± 0.02 ppm or ± 3% whichever is the greater

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Specification Details

Limit of detection (LOD) Low range sensors: 0.6 ppb

High range sensors: 0.015 ppm

Response time (90%) Low range sensors: < 10 seconds in gas phase; < 30 seconds in liquid phase

High range sensors: < 10 seconds in gas phase; < 50 seconds in liquid phase

Display resolution 0.1 ppb

Calibration Low range sensors: Single point calibration (zero)

High range sensors: Two at cap replacement (zero and air), one during use (air)

Calibration sample Low range sensors: Standard 99.999% N

2

(quality 50) or equivalent oxygen free

gas

High range sensors: Standard 99.999% N

2

(quality 30) or equivalent oxygen free

gas, air

Ambient temperature -5 to 50°C (23 to 122°F)

Humidity 0 to 95% non-condensing relative humidity

Power supply Universal 85-264 VAC @ 50/60 Hz, 25 VA

10-36 VDC, 25 W

Wall and pipe mount

instrument

(H x D x W)

236.5 x 160 x 250 mm; Weight 4.25 kg

9.31 x 6.30 x 9.84 in.; Weight 8.82 lbs

Panel mount instrument

(housing) (H x D x W)

156 (123) x 250 x 220 (214) mm; Weight 3.35 kg

6.14 (4.84) x 9.84 x 8.86 (8.43) in.; Weight 6.62 lbs

K1200 28 mm sensor

(L x W)

143.50 x 49 mm; Weight 0.74 kg

5.65 x 1.93 in.; Weight 1.63 lbs

Calibration device Weight 0.7 kg (1.54 lbs)

Expanded manual version

For additional information, refer to the expanded version of this manual, which is available on the

manufacturer's website.

General information

In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential

damages resulting from any defect or omission in this manual. The manufacturer reserves the right to

make changes in this manual and the products it describes at any time, without notice or obligation.

Revised editions are found on the manufacturer’s website.

Safety information

N O T I C E

The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,

without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent

permitted under applicable law. The user is solely responsible to identify critical application risks and install

appropriate mechanisms to protect processes during a possible equipment malfunction.

Please read this entire manual before unpacking, setting up or operating this equipment. Pay

attention to all danger and caution statements. Failure to do so could result in serious injury to the

operator or damage to the equipment.

Make sure that the protection provided by this equipment is not impaired. Do not use or install this

equipment in any manner other than that specified in this manual.

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English

Use of hazard information

D A N G E R

Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.

W A R N I N G

Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious

injury.

C A U T I O N

Indicates a potentially hazardous situation that may result in minor or moderate injury.

N O T I C E

Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special

emphasis.

Precautionary labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument

could occur if not observed. A symbol on the instrument is referenced in the manual with a

precautionary statement.

This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential

injury. If on the instrument, refer to the instruction manual for operation or safety information.

This symbol indicates that a risk of electrical shock and/or electrocution exists.

This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and

indicates that care must be taken to prevent damage with the equipment.

This symbol, when noted on a product, indicates the instrument is connected to alternate current.

Electrical equipment marked with this symbol may not be disposed of in European domestic or

public disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no

charge to the user.

Products marked with this symbol indicates that the product contains toxic or hazardous substances

or elements. The number inside the symbol indicates the environmental protection use period in

years.

Operating altitude

This instrument is rated for an altitude of 2000 m (6562 ft) maximum. Use of this instrument at an

altitude higher than 2000 m can slightly increase the potential for the electrical insulation to break

down, which can result in an electric shock hazard. The manufacturer recommends that users with

concerns contact technical support.

Installation

This section provides necessary information to install and connect the analyzer. The installation of

the analyzer should be performed in accordance with relevant local regulations.

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5

D A N G E R

Electrocution hazard. Do not connect AC power directly to a DC powered instrument.

D A N G E R

Electrocution hazard. Always remove power to the instrument before making electrical connections.

D A N G E R

Electrocution hazard. If this equipment is used outdoors or in potentially wet locations, a Ground Fault

Circuit Interrupt (GFCI/GFI) device must be used for connecting the equipment to its main power

source.

W A R N I N G

Potential Electrocution Hazard. A protective earth (PE) ground connection is required for both

100-240 VAC and 5 VDC wiring applications. Failure to connect a good PE ground connection can

result in shock hazards and poor performance due to electromagnetic interferences. ALWAYS connect

a good PE ground to the controller terminal.

C A U T I O N

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the

document.

N O T I C E

Install the device in a location and position that gives easy access to the disconnect device and its operation.

N O T I C E

Potential Instrument Damage. Delicate internal electronic components can be damaged by static electricity,

resulting in degraded performance or eventual failure.

Wall mounting

1.

Attach the U-bracket (provided) to the wall with two screws (not

provided).

2. Tilt the instrument slightly backwards to align the bracket pins and

the insertion slots, and slide the instrument onto the bracket as

shown.

3. Insert the 2 locking screws with washers through the side slots.

4. Adjust the instrument angle for better screen vision, and lock both

side screws.

Pipe mounting

1.

Assemble the pipe mount bracket to the U-bracket, using the two screws provided.

2. Attach this assembly to the pipe using two clamps (not provided).

3. Slide the instrument onto the bracket.

4. Insert the 2 locking screws with washers through the side slots.

5. Adjust the instrument angle for better screen vision, and lock both side screws.

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Panel mounting

W A R N I N G

Electrocution hazard. If the cable and connector for the power supply are not accessible after

installation, an accessible local disconnection means for the instrument power is mandatory.

1-3 4-5 6-7

1. Cut an opening in the panel to accommodate the bracket frame provided.

2. Install the provided frame in the opening.

3. Fold the 6 tabs over the panel lips, using adjustable joint pliers.

4. Slide the instrument in the bracket frame. The instrument should go over the four "T" pins. Rotate the 4 fast

locking screws on both sides of the front panel and slide it in.

5. Rotate the 4 fast locking screws 1/4 turn twice in the lock direction as indicated on the side of the front panel.

This locks the instrument in place on the four "T" pins.

6. To access the connections inside the instrument, remove the instrument housing (six screws on the back

panel, and slide the housing back out)

7. Pass the cables through the housing, then through the cable gland (if applicable) and then perform the

connections as detailed below.

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Instrument connections

Figure 1 Connections - panel (left); wall/pipe (right)

1 Power cable 6 Sensor connection

2 Ethernet cable gland 7 External pressure sensor connection

3 USB-A host connector 8 Input/Output 2 cable gland

4 USB-B 4-pin connector 9 Keylock (wall/pipe mount only)

5 Input/Output 1 cable gland

Connectors assembly instructions

D A N G E R

Electrocution hazard. In order to maintain the NEMA/IP environmental ratings of the enclosure, use

only conduit fittings and cable glands rated for at least NEMA 4X/IP66 to route cables in to the

instrument.

Cable gland wiring instructions

A waterproof cable gland is provided each time a cable must be connected inside the instrument.

The nickel-plated brass cable glands are EMC-types, designed so that the cable shields attach

directly to the instrument housing as a ground. Typical cable wiring instructions are detailed below.

1. Unscrew the cable gland nut. Inside, the assembly is composed of a rubber gasket, and two

metal washers. Note that the ethernet gland on panel and wall mount instruments does not have

washers and the gasket is cut.

2. If wiring a sensor cable, the cable has already been prepared so simply remove the piece of

plastic protection from the exposed shielding. For other cables, strip off external insulation as

required, and 25 mm of shielding. Strip the wires about 8 mm from their ends.

3. Pass the cable through the nut, the rubber gasket, and the two washers.

4. Pinch the shield so that its entire circumference is pressed between the two washers and pass

the cable into the housing, blocking the cable gland.

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English

1 Cable 4 Wire 7 Gasket

2 Shield 5 O-ring 8 Gland nut

3 Instrument 6 Washers

N O T I C E

It is vitally important to ensure the shielding is pinched and secured between the two washers to ensure the

shielding attaches directly to the instrument housing as a ground. Failure to do this could cause damage to

the instrument, and for sensor cables give incorrect readings.

5. Reattach and tighten the cable gland nut.

6. Attach the wires to the corresponding terminal block connections.

Connection to mains power supply

Power supply connection (low voltage instruments)

For low voltage instruments (10-30 VDC), connection to the mains power supply is with a 8-pin

BINDER connector (supplied).

Note: The connectors are grooved to avoid an incorrect fitting to the instrument.

Connect the power cable to the connector as follows:

Figure 2 BINDER connector

Pin Connections:

1. Power 10-30 VDC

2. Ground

3. Ground

4. Ground

5. Not used

6. Power 10-30 VDC

7. Power 10-30 VDC

8. Earth

Figure 3 Wiring side view

Power supply connection (high voltage instruments)

D A N G E R

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the

document.

D A N G E R

Electrocution hazard. Always remove power to the instrument before making electrical connections.

High voltage instruments (100-240 VAC) have a 4-pin male connector pre-wired internally with a

male BINDER connector ready for mains connection. A compatible female connector is supplied with

the instrument.

If this female connector was supplied with a mains power plug already pre-attached (cable part

numbers 33031, 33032, 33033 and 33034) then the female connector can be plugged directly into

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9

the instrument power connector. The two connectors are grooved to avoid an incorrect fitting. Tighten

the female connector to the instrument power connector finger-tight.

If no power cable was ordered with the equipment, a mains power plug must be connected to the

supplied female connector as described in the following procedure.

User-supplied power cable specifications:

• 3-wire (live, neutral and earth)

• cable Ø ≥ 7mm; ≤ 9.5mm

• wire selection ≥ 1mm

2

, AWG18; ≤ 2.5mm

2

, AWG14

Prepare the user-supplied power cable as follows:

1. Strip off 23 mm (0.9 ins.) of shielding from the power cable.

2. Cut back the live and neutral wires to 15 mm (0.6 ins.) in length but leave the earth wire as is.

3. Then strip off a small amount of external insulation from the three wires as required.

Wire the female connector as follows:

1. Take the narrow end of the connector (4) in one hand and the main body (2) in the other and

unscrew the two. Pull away the cable clamp (3) and unscrew the end plug (1) to reveal the four

parts that make up the connector.

2. Loosen the screws on the cable clamp (3) to allow enough room to pass the power cable through.

3. Pass the power cable through the end plug (1), the main body (2), and the cable clamp (3), and

then connect the three wires (live, neutral and earth) to the connector (4) as follows:

1. Live (brown)

2. Neutral (blue)

3. Not used

Earth - Earth (green and yellow)

Note: The numbers and earth symbol are stamped on the end of the connector. Ensure it is connected

correctly.

4. Slide the cable clamp (3) back onto the connector (4) and tighten the screws on the clamp to

secure the cable.

5. Screw the two parts (4) and (2) back together.

6. Secure the power cable by screwing the end plug (1) back in place.

7. The female connector can now be plugged directly into the instrument power connector. The two

connectors are grooved to avoid an incorrect fitting. Tighten the female connector to the

instrument power connector finger-tight.

Connections to electronic boards

N O T I C E

Potential Instrument Damage. Delicate internal electronic components can be damaged by static electricity,

resulting in degraded performance or eventual failure.

Note: Any loose connection wires should be bundled tightly together with the use of nylon cable ties.

Connectors P8 on the main board (Figure 4 on page 11) and J7 on the measurement board (

Figure 6 on page 12) are made of two parts. Push down carefully the black levers on either side of

the connector and pull it out securely. Perform all connections with these connectors unplugged.

Once finished, attach the connectors to the boards by pushing them firmly in place (levers up).

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English

Main board

Figure 4 Main board

Figure 5 Connector P8

Connector P8

The numbers listed below refer to the 13 available P8 connections (from left to right) in Figure 5.

1. RS-485 (signal A)

2. RS-485 (signal B)

3. PROFIBUS-DP (GND)

4. PROFIBUS-DP (+ 5 V)

5. PROFIBUS-DP (signal -)

6. PROFIBUS-DP (signal +)

7. PROFIBUS-DP (signal RTS)

8. Not used

9. Not used

10. Not used

11. System alarm relay (N.O.)

12. System alarm relay (N.C.)

13. System alarm relay (Common)

Connector P3

Ethernet RJ 45. Connect the instrument to the local network by passing an ethernet cable through

the ethernet cable gland (gland location illustrated in Figure 1 on page 8) and connecting to the

P3 connector illustrated in Figure 4.

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11

Measurement board

Figure 6 Measurement board

Figure 7 Connector J7

Connector J7 (inputs & outputs)

The numbers listed below refer to the 16 available J7 connections (from left to right) in Figure 7.

Measurement alarms relays:

1. Common

2. Output relay 1

3. Output relay 2

4. Output relay 3

Analog current

outputs:

5. Analog GND

6. Output 1

7. Output 2

8. Output 3

Digital inputs:

9. Hold input. To deactivate the sensor from a PLC system, connect a dry contact

between J7.9 and J7.12

Note: It is recommended to use this functionality in order to extend the sensor lifetime for

installations with a CIP process that can damage the spot.

10. to 11. Not used

12. Digital GND

13. to 16. Not used

Measurement alarm relays

The three output relays are located on the measurement board.

They can be individually configured to Normally Open (NO) or to Normally Closed (NC) by

physically moving the jumper on each relay. On the illustration:

• Upper relay is set to NC

• Middle relay is set to NO

• Lower relay is shown with no jumper

Note: J14 is relay 1, J18 is relay 2, J19 is relay 3

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Sensor installation

Sensor positioning

The sensor must be installed in a socket or flow chamber that allows contact with the sample fluid to

be analyzed. The sensor and measuring instrument are connected by a cable. The standard sensor

cable lengths are 3, 5, 10, 15 and 20 meters. Ensure that the sensor will be mounted:

• perpendicular to the pipe

• on a horizontal pipe section (or on flow-ascending vertical pipe)

• minimum of 15 meters away from the pump's discharge side

• in a place where the sample flow is stable and rapid, and as far as possible from:

• valves

• pipe bends

• the suction side of any pumps

• a CO

2

injection system or similar

Note: There may be situations where not all the above conditions can be met. If this is the case, or you have any

concerns, please consult your Hach representative to appraise the situation and define the best applicable solution.

Recommended sample flow rate

For optimal response time, the recommended sample flow rate is 150 mL/min. Control the flow with

the outlet valve on the flow meter (No. 3 in Figure 8) to avoid foam developing inside the flow

chamber which could lead to erroneous oxygen measurement values.

Figure 8 Typical measurement schematic

1 Valve to redirect sample for measurement 3 Flow meter with outlet valve

2 Sensor and flow chamber combination 4 Drain

User interface

Instrument controls

The instrument front panel provides:

• A touch screen acting as display, touch pad and keyboard.

• A LED, showing when the instrument is on.

Turning instrument On and Off

There is no power switch on the instrument. The mains must be disconnected to turn the instrument

off.

Measurement window

The main (numeric) measurement window continuously displays:

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13

• Sensor measured values

• Measured sensor trends (for the last 10 minute to last hour)

• Measured sensor data alarm limits and other events

• Temperature

Touch screen

The user interface on the front panel is a touch screen providing easy selection through menus. All

the measurement, configuration, calibration and standard service routines can be called by pressing

buttons and menu bars on screen.

The display can be configured to only show a sensor measurement, or to show a parameterized

graphic representation of the last measurements.

Menu navigation

Pressing the “menu” button in the header bar calls the main menu. The

display is made of three columns:

• The left shows the menu options

• The center shows a tree view of the position inside the menu

structure

• The right has the following generic controls:

• Up - Return to previous menu (one step back)

• Main - Jump directly to main menu

• Close - Close the menu and go back to the measurement display.

• Help - Help topics concerning current menu

Virtual keyboard

When a value or text is to be edited a virtual keyboard will appear on screen and can be used like a

standard keyboard. Press CAP to access special keys. When input is complete press the Enter key

to confirm and exit the virtual keyboard. During editing, the edited field name is displayed along with

units where applicable.

Security menu

Note: When the instrument is started for the first time security is disabled. It is highly recommended that each user

be entered into the system and given appropriate access rights as soon as possible to avoid any unauthorized

access.

Configure security

Define access levels for all users . This requires a user access level 4.

1. Select Configuration from the Security menu.

Option Description

Access rights When enabled only registered users can access the menus. When disabled (default)

all menus are freely accessible and no ID is recorded against any action in the log file.

Max session time The user is logged out automatically when the time limit is reached.

User action logging When enabled every action from a logged on user is recorded in a user log file.

User action log file The log file is a rolling buffer recording recent actions. Press Clear to empty the log

file.

Access rights management

Each user has a unique ID and password used to:

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English

• Allow or deny a user to perform specific actions

• To trace all actions by "ID" in a log file

Once the ID and password are entered the user is allowed to perform actions according to the

"Access level" that has been attributed by the Manager:

Access level Typical rights

0 View parameters, change views

1 + Start / Stop measurements

2 + Calibration

3 + Modify parameters

4 + Modify table "User Access level" + Enable/Disable "Access right"

At startup all menus are locked and a valid ID and password combination is required to get access

beyond the standard measurement view.

User management

Select Access table from the Security menu to show the list of registered users (a maximum of

99 users allowed). They are listed by name, ID, password and access level.

Pressing on an empty line or the Add button displays a window to add a new user. User name, ID,

password (minimum 4 characters) and access level (1 to 4) are required.

Pressing on a registered user displays a window for editing or deleting that user.

View menu

Numeric view

This is the default view and shows the measurement value, sample temperature value, and a graph

showing the measurements during the set time frame. The display is refreshed after each

measurement cycle which can be configured to suit user requirements.

The K1200 low range sensors measure dissolved oxygen up to a maximum value of 5000 ppb.

Below 2000 ppb the measurement cycle interval is 2 seconds. Between 2000 and 3000 ppb the

measurement cycle interval is 30 seconds. Above 3000 ppb the measurement cycle interval is

60 seconds. The K1200 high range sensors measure dissolved oxygen up to a maximum value of

40 ppm. Should the measured concentration go above the maximum value for the sensor then the

measurement cycle is increased to 60 seconds and an Out of range message will be displayed. An

arrow symbol to the right indicates if the value is increasing, decreasing, or remaining constant.

Once the measured value falls below the maximum value, the measurement cycle returns to the pre-

defined interval.

Numeric view configuration

1. Select Configure from the View menu followed by Conf. numeric view to customize the display:

Option Description

Display temperature Selct Channel temperature to display the sample temperature.

Display mini graph Check the box to display the graph.

Display time base Check the box to display the time base.

Upper bound Adjust graph upper limit.

Lower bound Adjust graph lower limit.

Time base Adjust graph time span.

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Option Description

Grid button Set up the graph to display the x or y axes, grid, or alarm thresholds.

Auto scale update button Automatically set the graph upper and lower bounds to best fit the actual values

displayed.

Clean button Clear the graph being displayed and restart.

Statistic view

This feature offers statistical data to match with Total Quality Management tools to better analyze

how a process behaves. The statistics are calculated from the data in the measurement file and

values updated each time a new measurement is added.

Diagnostic view

The diagnostic view contains important information but is only really useful for troubleshooting

purposes.

Measurement menu

Instrument configuration

1. Select Config. instrument from the Measurement menu:

Option Description

Measurement mode Continuous mode for on line process. Locked onContinuous mode.

Sample mode for lab sample analysis of small individual samples, such as cans or

bottles.

Pressure Select the barometric pressure units.

Temperature Select the temperature units.

Measurement configuration

1. Select Configure channel from the Measurement menu:

Option Description

Sensor Displays the sensor model.

Medium For the K1200 sensor this option is locked on Liquid.

Gas unit type Select Partial, Fraction, or Dissolved.

Gas unit When a composite unit is selected the unit will change depending on the range of the

value to display. The list of available units depends on the gas unit type selected.

Liquid For the K1200 sensor this option is locked on Water.

Display resolution A maximum of 5 digits can be displayed. Decimals can be limited to 0, 1, 2 or 3 for

easier reading. The resolution affects only the data displayed, not the resolution of data

measured and stored.

16 English

Option Description

T cut off If this temperature is exceeded the measurement session is suspended and the system

displays a HOT alarm message. The system resumes when the temperature drops to

90% of the specified temperature. It is recommended to Enable this feature to maximize

sensor life and system performance.

T cut off value Set to 5°C above the sample temperature.

Measurement advanced configuration

Note: The offset feature described below should be used for minor measurement adjustments only, and not as an

alternative to a sensor calibration. Make sure your sensor has been correctly calibrated before applying this feature.

1. Select the Advanced button on the Measurement configuration screen:

Option Description

Offset enabled Check this box to enable the user measurement offset option. If checked enter an

offset value or a target value:

Offset value Enter an offset value to manually adjust the measurement value. If the gas unit type

or gas unit (defined in the Measurement configuration screen) are changed the

offset value is automatically reset to zero.

Measurement This field cannot be updated. It shows the current measurement value with the offset

applied.

Target value Enter a target measurement value. The offset value is automatically computed so the

displayed measurement value will be equal to the target value.

Compute offset Select this button to recompute the offset value at any time during the measurement

process. The offset value will be computed based on the current and target

measurement values.

Out of range

protection

Check this box to enable the out of range protection (recommended). When enabled

and the measured value exceeds the instrument specification, the measurement

interval will be increased to 1 minute to protect the lifetime of the sensor spot. If

disabled, the lifetime of the spot can be negatively impacted if the sensor is exposed

to high oxygen concentrations for long periods of time.

Measurement

interval

Set the value to between 2 and 60 seconds to define the interval for refreshing the

measurement value on the display.

Hold recovery time This parameter defines the interval during which the outputs remain frozen after the

measurement is no longer on HOLD. Set the value to between OFF and 10 minutes,

according to the timing of your setup.

Measurement alarms configuration

Set the thresholds for the low/high concentration levels according to the application.

1. Select the Alarms button on the Measurement configuration screen:

Option Description

Low Low 2nd stage for too low concentration alarm.

Low 1st stage for too low concentration alarm.

High 1st stage for too high concentration alarm.

High High 2nd stage for too high concentration alarm.

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Option Description

Hysteresis The hysteresis is used to prevent relay flickering when the measurement is just at the alarm

levels. Set this to a minimum but enough to eliminate flickering. For example, if the High Alarm

is set to 40 ppb and the Hysteresis is set to 10% then the High Alarm is activated once the

measurement reaches 40 ppb but only deactivated once it drops below 36 ppb. With the Low

Alarm the opposite is true in that if the Low Alarm is set to 20 ppb and the Hysteresis set to 10%

then the Low Alarm is activated when the measurement drops below 20 ppb and deactivated

when it rises above 22 ppb.

Delay The delay in seconds, before alarms go on whenever concentration values go above ”High

alarms” or below “Low alarms”. Set this to a minimum value, but enough to avoid alarms for

non-representative peaks beyond the set level.

Measurement filter configuration

The filters are aimed at “flattening” the measurement curve in situations where the process shows

atypical peak values that could otherwise hamper the interpretation of measurement readings. The

filter is applied on the last set of measurements each time a measurement is taken.

1. Select the Filter button on the Measurement configuration screen:

Option Description

State Set the filters to Enabled or Disabled.

Type If enabled set the filter to Mean or Median.

Mean is the mathematical average of the last set (depth) of measurement values.

Median allows for eliminating atypical peak measurement values and averaging the

remaining ones. The calculation sorts the last measurement set (depth) by values, then

ignores the highest and lowest values and averages the remaining values (central depth).

Depth Number of measurements that make up a set.

Central depth Number of measurements to be used to determine the average.

Example: With a depth of 7 and central depth of 5, the 7 values are sorted and the highest (7.0)

and lowest (0.9) eliminated. The average of the center 5 is calculated as 3.88:

0.9 1.1 4.0 4.3 4.4 5.6 7.0

Measured data storage

There is one measurement file which contains the data generated by the measurement cycle. The

measurement file is updated in volatile memory and regularly copied in non-volatile memory (file

back-up). At start up the measurement file in volatile memory is updated with the file from the non-

volatile memory.

Note: Data stored in volatile memory is lost when instrument is powered off; non-volatile memory is permanent. In

case of an accidental power off event the instrument resumes measurement storage after the last measurement

stored in flash.

1. Select Measurement file from the Measurement menu:

Option Description

Storage mode Select No storage if data storage is not required. Select Store once to start

recording measurements. When the volatile memory is full the recording of

measurement stops. Select Rolling buffer for continuous recording of

measurements. When the volatile memory is full the latest measurement set

replaces the oldest one (first-in, first-out)

RAM time The delay between two recordings of measurement data.

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Option Description

FLASH time The delay between two data file transfers from volatile memory into non-volatile

memory. The last data file erases the previous one. This option is only available if

the Auto save in flash box is checked.

Save in flash now Press this button to store measurement data in flash immediately. After pressing

this button, press OK to initiate the process. A warning screen appears informing

you that the operation can take up to 30 seconds. Press Yes to continue or No to

abort.

Auto save in flash Check this box to save measurements in flash automatically. Measurements are

saved at regular time intervals as defined in the FLASH time box.

Purge data Clear all data in the volatile and non-volatile memories.

Start logging

measurements

Only available in Store once mode, this option starts or stops the measurement

recording session. Measurement recording ends automatically when the buffer is

full.

Open data Opens a table showing the measurments stored in the volatile memory (RAM).

Note: If TPO or TPA calculation is enabled, a ”TPO data” or a ”TPA data” button will

be available underneath the “Open data” button described above. Pressing this

button will display the TPO or TPA calculated data in a screen similar to that for

standard data.

Calibration

Calibrations can only be performed once the instrument has been installed and configured.

Note: The temperature sensor is factory calibrated and can only be changed by a Hach representative.

Portable calibration device

The portable calibration device (part number 33088)

is ideal for calibrating the sensor close to its location

in the sample. The device is designed to hold a one

liter gas cylinder but is fully compatible for use with

other kinds of gas cylinders.

When using other types of gas cylinders, simply

connect the gas supply to the Swagelok connector

(No. 1), and make sure that the inlet gas pressure

does not exceed 2 bars absolute.

The gas bottle is not supplied and must be

purchased locally.

To ensure the calibration works correctly the calibration gas bottles must be of 99.999% (50) quality

or better. Bottles containing 34 liters of compressed gas with a 5/8-18 UNF (C10) fitting are

compatible with the hand-held calibration device and recommended for this purpose. Empty gas

bottles are easily removed from the device. Simply unscrew the small screw (No. 2) a few turns, slide

the bottle out of the holder, and unscrew the bottle from the pressure reducer. Follow this same

procedure in reverse order to install a new bottle.

Sensor calibration

The sensor can be calibrated manually on an ad hoc basis. By default, the mode is set to zero

calibration with auto-end.

For higher level concentrations (above 1% oxygen which corresponds to about 400 ppb dissolved

O

2

) a high level adjustment can be performed using a gas mixture containing more than 1% oxygen,

or a known line sample. However, this should not be done without first ensuring the zero point is

accurate. This can be achieved by performing a zero calibration first.

Low range sensors: (K1200-L spots)

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There are two calibration modes available - zero or high level adjustment. The sensor is factory

calibrated at zero. During use, the zero calibration is the best calibration to guarantee the sensor

specifications. After a spot replacement, a zero calibration is recommended.

High range sensors: (K1200-H spots)

There are three calibration modes available - zero, high level adjustment or in 100% humid air. The

sensor is factory calibrated at zero and in 100% humid air. During use, humid air calibration is the

best calibration to guarantee the sensor specifications. After a spot replacement, a zero calibration

and a 100% humid air calibration are recommended.

Initial sensor calibration

The sensor has been calibrated at the factory prior to shipment and is ready for use upon delivery.

However, if the sensor has not been used for a period of more than six months since delivery or if the

sensor spot has been replaced or changed in any way, then a sensor calibration will be required.

1. From the Main menu, select Calibration followed by Gas sensor and then Configuration. Make

sure the parameters are set as follows:

Option Description

Auto-calibration Not available for this sensor.

Manual-calibration Make sure that the Auto-End box is checked.

Hold during calibration or

verification

Make sure this box is checked.

Zero calibration bottle Make sure this is disabled by unchecking the box as it is not relevant

for this sensor.

2. Exit from the configuration screen by pressing OK.

3. Select Calibration and perform a manual zero calibration as described in Zero calibration

on page 21. For high range sensors perform an additional 100% humid air calibration as

described in 100% humid air calibration (high range sensors only) on page 22.

Manual calibration

Manual calibrations can be made at any time by following these steps:

1. Remove the sensor from the sample line.

2. Rinse the sensor head with clean water.

3. Wipe the sensor head with a clean soft tissue to remove any excess moisture.

4. If using the supplied calibration device insert the sensor into the sensor holder on top of the

calibration device. If not using the calibration device insert the sensor into the flow chamber.

5. Flow the calibration sample through the calibration device or flow chamber as applicable. If using

the calibration device fully open the valve on the pressure reducer to give a gas flow rate of

0.1 L/min. If you are not using the supplied calibration device with pressure reducer the maximum

allowable inlet pressure must be no more than 2 bar absolute.

6. Configure the calibration as described in Calibration configuration on page 21.

7. Start the calibration as described in Zero calibration on page 21, 100% humid air calibration

(high range sensors only) on page 22 or High level adjustment on page 22 depending on the

preferred calibration method.

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Hach ORBISPHERE K1200 Basic User Manual

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