Dräger Polytron 7000 Instructions For Use Manual

Dräger Polytron 7000

Approved as type P3U and type P3FB

Instructions for use

Dräger Polytron 7000

Contents

Contents

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Safety-related information

1.1

1.2

General safety notes

– Before using this product, carefully read the instructions for use.

– Strictly follow the instructions for use. The user must fully understand and strictly observe the instructions. Use the product only for the purposes specified in the

Intended use section of this document.

– Do not dispose of the instructions for use. Ensure that they are retained and appropriately used by the product user.

– Only trained and competent users are permitted to use this product.

– Comply with all local and national rules and regulations associated with this product.

– Only trained and competent personnel are permitted to inspect, repair and

service the product as detailed in these Instructions for Use (see chapter 8).

Further maintenance work that is not detailed in these Instructions for Use must only be carried out by Dräger or personnel qualified by Dräger.

Dräger recommends a Dräger service contract for all maintenance activities.

– Only use genuine Dräger spare parts and accessories when performing maintenance work, or the proper functioning of the product may be impaired.

– Do not use a faulty or incomplete product. Do not modify the product.

– If a pump module is used, care must be taken when opening the gas detector.

Through an existing glass tube there is risk of breakage and injury.

– If a pump module is used, do not block the lower gas inlet of the pump module.

This can destroy the sensor.

Use in areas subject to explosion hazards

– Equipment and components which are used in explosion-hazard areas and which have been inspected and approved in accordance with international or

European explosion-protection regulations may be used only under the specified conditions.

– In applications, which require devices of category 1G (zone 0) resp. EPL Ga, intensive electrostatic charging processes have to be prevented.

– Not for use in oxygen enriched atmospheres, i.e. more than 21 Vol% oxygen.

– If fitted at the time of delivery, or retrofitted at a later stage, with the relay module and/or the pump module, the device loses its explosion protection approval.

Operation of the device with the pump module and/or the relay module installed is not permitted in explosion-hazard areas.

– When measured gas is aspirated from explosion-hazard areas, suitable explosion protection measures are required, e.g. use of flame arresters.

– The relevant regulations for routing and connecting of power and signal lines to gas detection systems must be strictly adhered to.


1.4

2

2.1

Conventions in this document

– The electric network (gas detector and alarm devices) in which the gas detector is installed must be equipped with a circuit breaker or a fuse.

– The circuit breaker or fuse must be easily accessible and must be marked as belonging to the gas detector.

– Observe the operational temperature range of the cables. Electric strength of the cable insulation corresponding to the supply for the alarm devices that are connected to the relays.

– If the gas detector is not connected to a controller, an alarm signalling device must be connected to the fault relay.

Detection and measurement of oxygen in line with EN

50104

– P3U is certified with the EU type examination certificate BVS 03 ATEX E 406 X and the type examination certificate PFG 16 G 005 X for the measurement of oxygen.

– The certified measuring function concerns the measuring range 0 to 25 % O 2

(v/v) for the purpose of measuring inertisation (BVS 03 ATEX E 406 X) plus the monitoring of the ambient air for oxygen deficiency and surplus

(PFG 16 G 005 X).

– Only configure alarms as “non-acknowledgeable”.

– Only use the readouts on the 4-20 mA analogue output or the switching states of the relays for purposes relating to safety.

– Approved sensors and components:

– DrägerSensor O 2 LS (6809630)

– DrägerSensor O 2 (6809720)

– Remote sensor (8317275)

– Relay module (8317360)

Conventions in this document

Meaning of the warning notes

The following alert icons are used in this document to provide and highlight areas of the associated text that require a greater awareness by the user. A definition of the meaning of each icon is as follows:

Alert icon Signal word

WARNING

CAUTION

Consequences in case of nonobservance

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

Indicates a potentially hazardous situation which, if not avoided, could result in injury.

It may also be used to alert against unsafe practices.


Description

Alert icon Signal word

NOTICE

Consequences in case of nonobservance

Indicates a potentially hazardous situation which, if not avoided, could result in damage to the product or environment.

– HART ® is a registered trademark of the HART Communication Foundation.

– PROFIBUS

®

is a registered trademark of the PROFIBUS Nutzerorganisation e. V.

– FOUNDATION TM is a registered trademark of the Fieldbus Foundation.

3 Description

Polytron

5

4

3

2

M

OK

1 Control panel with display

(see section 4)

2 Sensor

3 Bayonet ring

4 Docking Station

5 Measurement module

1

The Dräger Polytron 7000 is a stationary gas detector and is used for the monitoring of toxic gases and oxygen. The device converts the measured gas concentration into an electrical signal for further processing.

Frequency of the calculation of the measured value: 1 x per second (updating of the display, the 4-20-mA interface and the relays).


Description

Ex works, the gas detector is configured with different interfaces and accessories.

3.3.1 Sensors

The gas detector is intended for the use of the DrägerSensor EC (electrochemical).

The measuring function in line with EN 50104 is certified with the oxygen sensors

O 2 (6809720) and O 2 LS (6809630).

3.3.2 Interfaces

Interface Type

4-20 mA

4-20 mA/HART

PROFIBUS PA

FOUNDATION Fieldbus H1

LON (Local Operating

Network)

P3U

P3U

P3FB

P3FB

–

Explosion protection approval

Yes

Yes

Yes

Yes

No

3.3.3 Accessories

Accessories Function

Pump module

(8317350)

Relay module

(8317360)

Daisy chain installation kit (8317282)

Remote sensor

(8317275)

Duct and pipe adapter

(Duct mounting kit)

Duct adapter for remote sensor

(8317617)

Calibration adapter V

(6810536)

Calibration adapter AC

(6809380)

Pump adapter

(8317976) for AC sensor

Aspiration of measured gas

Local switching of actuators

Connection of multiple gas detectors to one bus line (multidrop installation)

Installation of the sensor at a distance of up to 30 m from the measurement module.

Installation of the gas detector to a pipe in order to measure the gas concentration inside it.

Installation of a remote sensor to a pipe in order to measure the gas concentration inside it.

Supply of test gas

Supply of test gas together with the pump adapter (8317976)

Gassing of an AC sensor by means of the pump integrated in the gas detector

Explosion protection approval

No

No

Yes

Yes

Yes

Yes

No

No

No


Description

Accessories

Dongles

Sensor-test dongle (8317619)

Diagnostic dongle

(8317860)

Data dongle

(8317618)

Function Explosion protection approval

Activation of additional functions

Sensor test functions that ensure the reliability and functionality of the sensor and of the gas warning device

Sensor diagnostics feature

(including sensor tests) to determine the strain and the remaining sensor life time

Data and event logging feature – stores measured values and events such as alarms and faults.

Enables graphic plotting of the measured values on a 15-minute time axis.

Yes

Yes

Yes

For information about additional accessories refer to the corresponding Dräger product information.

In combination with the integrated DrägerSensor, the gas detector is intended for continuous monitoring of gas concentrations.

For installation in:

Explosion-hazard area

Category

UL-/CSA area

Zones 0, 1, 2; Mining

1G, 2G, 3G; M1

Class I & II; Div. 1 & 2

3.5 Approvals

Depending on the interface, the gas detector is approved under the type

designation P3U or P3FB (see section 3.3.2 Interfaces).

3.5.1 ATEX

Device marking in accordance with 2014/34/EU

Types P3U & P3FB

BVS 03 ATEX E 406 X

0158 II 1G / I M1

Ex ia IIC T4 Ga -40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

Ex ia IIC T6 Ga -40 °C ≤ Ta ≤ +40 °C

(-40 °F ≤ Ta ≤ +104 °F)


Description

Ex ia I Ma -40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

0158 II 3G

Ex ic IIC T4 Gc -40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

Ex ic IIC T6 Gc -40 °C ≤ Ta ≤ +40 °C

(-40 °F ≤ Ta ≤ +104 °F)

Power supply: U i = 30 V, I i = 0.3 A, P i = 700 mW, C i = 5 nF, L i = 50 μ H

Year of manufacture (via serial number) 1)

Dräger Safety, 23560 Lübeck, Germany

Type P3U

Safety-related characteristic values for the supply and signal circuit (outer terminals of the docking station):

Ui = 30 V, I i = 0.3 A, P i = 700 mW, C i = 5 nF, L i = 50 μ H

Type P3FB

FISCO bay unit

Power supply: U i = 24 V, I i = 0.38 A, P i = 5.32 W, C i = 5 nF, L i = 10 μ H

3.5.2 IECEx


Ex ia IIC T4 Ga

Ex ia IIC T6 Ga

Ex ia I Ma

Ex ic IIC T4 Gc

Ex ic IIC T6 Gc

-40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

-40 °C ≤ Ta ≤ +40 °C

(-40 °F ≤ Ta ≤ +104 °F)

-40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

-40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

-40 °C ≤ Ta ≤ +40 °C

(-40 °F ≤ Ta ≤ +104 °F)

IECEx BVS 04.0003X

Year of manufacture (via serial number)*

Dräger Safety, 23560 Lübeck, Germany

Type P3U

Power supply: U i = 30 V, I i = 0.3 A, P i = 700 mW, C i = 5 nF, L i = 50 μ H

1) Structure of the serial numbers: The third letter of the serial number indicates the year of manufacture: M = 2019, N = 2020, P = 2021, R = 2022, S = 2023, T = 2024, U = 2025,

W = 2026, X = 2027, Y = 2028, Z = 2029 etc. (letters G, I, O, Q are omitted)

Example: Serial number ARMB-0001: The third letter is M, meaning that the device was manufactured in 2019.


Description

Type P3FB

FISCO bay unit

Power supply: U i = 24 V, I i = 0.38 A, P i = 5.32 W, C i = 5 nF, L i = 10 μ H

3.5.3 UL


Only in accordance with intrinsic safety classified for operation in explosion-hazard areas.

Class I, Div. 1&2, Groups A, B, C, D

Class II, Div. 1&2, Groups E, F, G

Use in accordance with Dräger control drawing SE20105.

T4

T6

-40 °C ≤ Ta ≤ +65 °C

(-40 °F ≤ Ta ≤ +149 °F)

-40 °C ≤ Ta ≤ +40 °C

(-40 °F ≤ Ta ≤ +104 °F)

Type P3U

Power supply: V max = 30 V, I max = 0.3 A, P i = 700 mW, C i = 5 nF, L i = 50 μ H

Type P3FB

FISCO bay unit

Power Supply: V max = 24 V, I max = 0.38 A, P max = 5.32 W, C i = 5 nF, L i = 10 μ H

3.5.4 CSA

NRTL/C

® LR97594


Intrinsic safety

Class I, Div. 1, Groups A, B, C, D

Class II, Div. 1, Groups E, F, G

Use in accordance with Dräger control drawing SE20106.

Type P3U

Power supply: V max = 30 V, I max = 0.3 A, P max = 700 mW, C i = 5 nF, L i = 50 μ H

Type P3FB

FISCO bay unit

Power supply: V max = 24 V, I max = 0.38 A, P max = 5.32 W, C i = 5 nF, L i = 10 μ H

3.5.5 Detection and measurement of oxygen in line with EN 50104

The measuring function in line with EN 50104 is certified from software version 8.6 onwards.

Measuring function for explosion protection

BVS 03 ATEX E 406 X

Device configuration

Type P3U with DrägerSensor O 2 LS (6809630) or

O 2 (6809720)

Measuring range

0 to 25 vol.-% O 2

Purpose

Inertisation measurement


Use

Measurement of oxygen

PFG 16 G 005 X

Device configuration

Type P3U with DrägerSensor O 2 LS (6809630) or

O 2 (6809720)

Measuring range

0 to 25 vol.-% O 2

Purpose

Detection of oxygen deficiency and oxygen surplus

The pump module is not part of the EU type examination certificate BVS 03 ATEX E

406 X and the type examination certificate PFG 16 G 005 X.

4 Use

In addition to the control panel, the unit can also be operated using, for example, the Dräger PolySoft software, FDT applications or manual control units.

If individual parameters were changed with a configuration software, all parameters from the device must be read back and verified manually.

4.1 Display

Example display

O2

20.9

Vol.%

O2

19.0

A1

Description

Normal operation – The display shows the gas concentration, the measured gas and the unit of measure.

Overshooting (in the case of O 2 also undershooting) of the alarm thresholds – The display in the example shows the pre-alarm A1.

Overshooting the full scale value specified for the sensor (see instructions for use/data sheet for the sensor)

4-20-mA interface: Full-scale value

Relay: A2 relay energised

O2 A2

No monitoring of the gas concentration and/or alarm state occur in the special state.

Special states on the gas detector exist in the following cases:

– Negative gas concentration

– Fault


Use

– Disabled alarms (display readout and analogue/digital measured value readout remains active)

– Calibration procedures

– Warm-up phase

– Maintenance

Example display

O2

20.9

Vol.%

Description

Maintenance – When certain functions are invoked

(e.g. calibration, sensor replacement function), the display shows the symbol .

4-20-mA interface: Maintenance signal

Relay: Energised or not energised depending on function

General error – The display shows the symbol .

4-20-mA interface: Fault signal

Relay: Fault relay energised

O2

20.9

Vol.%

A warning is present. The display shows the symbol

4-20-mA interface: Measured value

1)

Relay: Fault relay energised (with a disabled alarm)

1) The warning signal is also issued for the measured value when a warning signal is selected.

Factory setting: Warning signal disabled.

Conduct during warm-up phase 1

4-20-mA interface: Maintenance signal

Relay: Fault relay energised

During warm-up phase 1 the display shows the time remaining until warm-up phase

1 is completed.

Conduct during warm-up phase 2

4-20-mA interface: Measured value

Relay: Fault relay not energised

During warm-up phase 2 the display shows the measured value.

Undershooting the measuring range (O 2 sensors only)

If the measured value drops below the measuring range set, the 4-20-mA interface emits 3.8 mA ... to 4 mA and the display shows the symbol .

If the measured value drops further, the gas detector behaves in the same way as for a general error. The 4-20-mA interface issues the fault signal, the display shows the symbol and the fault relay is energised.

Undershooting the measuring range is a non-latching error. If the measured value is again in the measuring range, the error is no longer issued.


4.1.3

4.1.4

Use

Meaning of the symbols

Symbols on the right side of the displays indicate the device state. Some symbols are only displayed if the gas detector is operated with the corresponding component.

Symbol Explanation

A fault is present. Fault signal is issued.

A warning is present. A warning signal is issued.

1)

A maintenance signal is issued.

Pump is installed.

Pump flow error

The configured full scale value is overshot in the 4-20 mA interface

The configured threshold limit value is undershot in the 4-20mA interface.

Polling address of the analogue interface is set to a fixed value

(Multidrop operation) and transmits via HART.

Sensor diagnostic function – The sensor is ready for operation.

Sensor diagnostic function – The sensor is ready for operation but nearing the end of its operating lifetime.

Sensor diagnostic function – The sensor is ready for operation but should be replaced soon.

The buffer mode of the data logger is set to overwriting (roll).

The buffer mode of the data logger is set to holding (stack).

1) If the device is in maintenance mode (e.g. warm-up phase 1), the maintenance signal is issued instead of the warning signal.

LED indication for LON version

The LON version of the gas detector has three LEDs located behind the display.

LED display Meaning

The green LED is illuminated

The gas detector is functioning properly.

The green LED is flashing

A warning is present.

Orange LED The gas detector communicates with the control unit via LON.

Red LED An error is present.


Use

4.1.5 Checking the display for proper functioning

In order to recognise defective pixels in the display, it is possible to invoke the

Show Fault Codes menu image.

The menu image is suited since it shows many contiguous pixels, making it possible to recognise line, column or individual pixel faults. Displayed fault codes are not relevant in this context.

1. Open the menu (see chapter 4.4.3).

2. In the menu, select Information > Instrument > Show Fault Codes .

3. Check if all pixels are displayed.

4.3

Polytron

1

2

M

OK

1 Up key or function key

2 Down key or menu key

3 OK key

3

Info mode and function key

In measuring mode, the Info mode can additionally be activated. It provides an overview of device information presented on multiple pages.

Example display

Page 1

07.11.2011 12:34

SW Version : 8.0

Part No. : 8317778

Serial No.

: ARUA0001

DeviceCode: 00006317

1/4

Instrument Info

Page 2

Sensorname: O 2

Part No. : 6809630

Serial No.

: XXXXXXX

EEPROM Typ : 1

EEPROM Vers.: 1

2/4

Sensor Info

Description

Device information

Line 1 – Date and time

Line 2 – Software version

Line 3 – Device part no.

Line 4 – Device serial no.

Line 5 – Device code

Sensor information

Line 1 – Sensor name

Line 2 – Sensor part no.

Line 3 – Sensor serial no.

Line 4 – EEPROM type

Line 5 – EEPROM version


Use

4.3.2

4.3.3

4.3.4

Example display

Page 3

Gasname : O 2

Range : 25.00 Vo

4–20 SP : 25.00 Vo

Alarm A1 : 19.00 Vo

Alarm A2 : 23.00 Vo

3/4

Sensor Config.

Page 4

2)

Description

Sensor settings

Line 1 – Gas name

Line 2– Measuring range (cannot be edited) and unit of measurement

Line 3 – Measuring range for the analogue interface

Displayed only if the analogue interface card is installed

Line 4 – Alarm threshold A1 and unit

1)

Line 5 – Alarm threshold A2 and unit

1)

Pump information

Line 1 – Pump output

Line 2 – Flow threshold for error

Line 3 – Flow threshold for warning

Line 4 – Running time of the pump

Pump info

4/4

1) Displayed only if a relay module is used!

2) Displayed only if a pump module is used!

Activating Info mode

● In measuring mode, press and hold down for approx. 3 seconds.

Navigation in Info mode

Key

M

OK

Function

Scrolls to the next page.

Scrolls to the previous page.

Exits Info mode.

After 30 seconds without key operation, the gas detector automatically exits the Info mode.

Using the function key

The function key can be used to directly invoke a function that has been assigned to the function key. By default, the error log is displayed.

● In measuring mode, press and hold down for approx. 1 second.

For configuring of the function key (see section 9.7 Configuring the function key).

4.4 Menu

Key

M

Function

Navigates upward.

Sets values.

Navigates downward.

Sets values.


Use

Key

OK

Function

Confirms inputs.

Selects menus and functions.

4.4.2 Passwords

Calibration password Access to

– Information menu

Settings password

– Calibration menu

Factory setting: _ _ _ 1

Access to

– Information menu

– Calibration menu

– Settings menu

Factory setting: _ _ _ 2

For setting the passwords, see section 9.3.

4.4.3

4.4.4

Opening the menu

● To open the Information directly: In measuring mode, press and hold down

M for approx. 1 second.

● To open the Information and Calibration menus: a. In measuring mode, press and hold down for approx. 3 seconds.

M b. Select Enter password .

c. Enter the calibration password.

● To open all menus: a. In measuring mode, press and hold down for approx. 3 seconds.

M b. Select Enter password .

c. Enter the settings password.

Reading out information

In the menu Information choose the appropriate menu item:

Instrument

Show Notice

Show Fault

Show Fault

Codes

Shows existing warnings. For troubleshooting with respect to the warning number displayed

(e.g. #58) see section 7.2.

If multiple warnings are present, this is indicated (e.g. 1/3 = page 1 of 3.).

Shows existing errors. For troubleshooting with respect to

the error number displayed (e.g. #100) see section 7.1.

If multiple errors are present, this is indicated (e.g. 1/3 = page 1 of 3.).

Shows present error and warning codes in a table. If all numerical groups are displayed with "00", no error is present.


5

5.1

5.1.1

Installation & commissioning

Show Module

Sensor

Vitality

1)

Show sensortemp.

Datalogger

Shows the remaining sensor vitality in %.

Dräger recommends to replace the sensor when the vitality

< 25 %.

Last Cal. Date Shows the date of the last calibration.

Next Cal. Date Shows the due date for the next calibration.

Shows the current and the max. measured sensor temperature values.

Datalogr. status

2)

Show graph

2)

Shows the installed hardware modules. To show detailed information, select module in the menu.

= The module is installed

= The module is not installed

The detailed information also shows the software version of the module which is used.

Shows for the data logger and for the event logger respectively whether they are switched on or off.

Represents the measured values on a time axis of 15 minutes.

1) Only works with the diagnostic dongle

2) Only works with the data dongle

Installation & commissioning

Mounting the measurement module

Preparing the docking station

Prerequisite:

– Docking station is mounted and wired.

(as per assembly instructions Dräger Docking Station for Polytron

®

3000/7000)

1. Remove the dust and rain protector, if in place.

2. Inspect the sealing of the docking station for contamination, clean if necessary.

3. From the inside, check the position of the eccentric screws.

The screws must be in engaged position, with the eccentric opening pointing upward.

4. Using a 5 mm Allen key (without spherical head), correct the position of the eccentric screws, if necessary.



5.1.2 Connecting the measurement module with the docking station

NOTICE

Ingress of humidity

If the measurement module is not flush with the docking station, humidity can enter, damaging the gas detector.

► Make sure that the measurement module is correctly seated in the docking station.

1. Horizontally slide the measurement module into the docking station and lower it.

 The front of the measurement module is flush with the docking station. A gap of approx. 3 mm (0.12") remains at the top between docking station and measurement module.

5.2

2. Using the 5 mm Allen key (without spherical head), turn the eccentric screws approx. 180° in clockwise direction towards .

 The gap at the top between docking station and measurement module closes.

 The measurement module is locked.

Installing the sensor

If the gas detector is already switched on and an existing sensor is to be

replaced, see section 8.2.

Prerequisite:

– Measurement module is installed.

1. Loosen the hexagon socket screw at the bayonet ring.

2. Unscrew the bayonet ring from the gas detector.

3. Remove the blank disk.

4. With the Dräger logo pointing forward, insert the sensor into the sensor opening.

5. Screw the bayonet ring back on.

6. Tighten the hexagon socket screw at the bayonet ring.


5.3

5.3.1

5.3.2


Alarm devices (only with relay module)

If alarm devices are to be operated, the electrical connection of the docking station must be in 3-wire technology (see assembly instructions Dräger Docking Station for

Polytron ® 3000/7000).

Information about connecting

Three potential-free relay outputs are available at the relay module:

– alarm relay A1 (pre-alarm)

– alarm relay A2 (main alarm)

– fault relay (fault signal)

Pin-out of the relay plug

1

2

4

3

1 normally closed

2 common

3 normally open

4 not connected

Connecting alarm devices

WARNING

Risk of electric shock

Potential differences can lead to insulation faults.

► Do not combine electrical loads with different voltage types (AC or DC).

► If DC loads are used, make sure that only devices with identical rated DC voltages are controlled via the relay contacts (e.g. ≤ 120 V).

► If AC loads are used, make sure that only the relay contacts are only connected to devices with which they share one phase.

WARNING

Risk of electric shock

Improper use can lead to personal injury.

► Before plugging in or unplugging the relay plug, disconnect alarm devices from the power supply.



Equipment

– connection cable diameter of the connection cable: 6 to 9.5 mm diameter of the individual wires: 3 mm max.

cable core cross-section: 2.5 mm

2

(AWG 14)

– ferrite sleeve

– ferrules

– cable bushing (order no. 18 90 086)

5.4

5.4.1

Procedure:

1. Mount the cable bushing with the ferrite sleeve to the connection cable. Screw all connections tight.

2. Make a note the pin-out of the relay outputs on the label of the relay cap.

3. Insert and lock the connection cable.

4. Close the relay cap.

Pump adapter (only with pump module)

If the pump module is to be operated, the electrical connection of the docking station must be in 3-wire technology (see assembly instructions Dräger Docking

Station for Polytron

®

3000/7000).

Mounting the pump adapter

Polytron

OK

2

1


2. Unscrew the bayonet ring (2) from the gas detector.



5.4.2

5.5

3. If necessary, insert the sensor.

4. Place the mounting ring (1) of the pump adapter over the sensor opening.



7. Observe the installation direction of the pump adapter.

The installation direction certain the direction of gas flow between pump and sensor (mode of operation).

Mode of operation Description

Grommets for supply and waste air point to the left, symbol points to the front

The pump is upstream of the sensor in the gas flow; the sensor is on the overpressure side of the pump.

This is the preferred mode of operation for all sensors.

Grommets for supply and waste air point to the right, symbol points to the front

The pump is downstream of the sensor in the gas flow; the sensor is on the negative pressure side of the pump.

This mode of operation should be chosen only in justified cases.

For the DrägerSensor O 2 LS (6809630) the mode of operation is only permissible up to a maximum flow rate of 0.5

L/min.

This mode of operation is not permitted for the Dräger-

Sensor O 2 (6809720).

8. Insert the bushings of the pump adapter into the bore holes in the underside of the docking station.

 The sealing slides over the sensor.

9. Turn the mounting ring in clockwise direction until the pump adapter is secured.

Information about the installation of the aspiration line

The selection of the material of the aspiration hose/aspiration pipe and the aspiration distance influence the response time of the measured signal. In the worst case, reaction with the material used or absorption can result in no measurable gas concentration reaching the sensor.

A pressure difference between the aspiration location and the environment of the gas detector can lead to an additional measuring error. The maximum permissible pressure difference is 50 mbar.

Contact Dräger for information about selecting a suitable hose/pipe material.

Commissioning the gas detector

Prerequisite:

– The sensor is installed.

1. Switch on the power supply.

 The gas detector starts the warm-up phase.

 The time remaining until the sensor reaches operational readiness. The maintenance signal is issued. If a relay module is installed, the fault relay is energised.


Calibration

2. Wait until the warm-up phase is completed.

Depending on the installed sensor, the warm-up phase can take between

5 minutes and 12 hours.

It is already possible to make settings in the menu:

3. Calibrate the sensor (see section 6).

4. Perform tests:

● Check signal transmission to the control unit.

● Test the alarm relay and the fault relay (only with relay mode, see

section 9.2.6).

5. If a pump module is used:

● Check the aspiration path for tightness.

● Compare the flow rate at the aspiration location and downstream of the gas detector.

6 Calibration

Calibration involves adjusting the zero-point and the sensitivity of the sensor.

6.2

Depending on the type of calibration, different test gases are used.

Zero gas

Zero gas is a test gas used for zero-point adjustment. The zero gas used can be fresh air from the ambient atmosphere. The fresh air must be free from the measured gas or other substances that have cross-sensitivity. Nitrogen (N 2 ) is used in the case of O 2 sensors.

Target gas

Target gas is a test gas used for sensitivity adjustment. The target gas used can be the measured gas or a surrogate gas. In the case of O 2 sensors, no target gas is needed, and the oxygen from the ambient air (fresh air) is used.

Preparing the test gas supply

The mode of test gas supply depends on whether the gas detector is equipped with a pump module or not.

Prerequisite:

– The warm-up phase of the sensor is completed (see section 5.5 Commissioning the gas detector).

– Date and time have been set (see section 9.4).


Calibration

WARNING

Health hazard from test gas

Breathing in of test gas can be harmful to health or lead to death.

► Do not inhale the test gas.

► Observe risks connected with the test gas, hazards notes and safety advice (see for example safety data sheets, instructions on the testing media).

CAUTION

Alarms triggered by test gas

Test gas that is still present can trigger alarms.

► Make sure that the supply of test gas is ended.

6.2.1

2SWLRQ

Gas detector without pump module

The test gas must be fed without being pressurised. This corresponds, e.g. if a test gas cylinder is used, a flow rate of 500 mL/min. If test gas ampoules are used, unpressurised supply is automatically the case.

Using a test gas cylinder

Equipment:

– test gas cylinder with pressure reducer, in the case of aggressive gases with stainless steel pressure reducer

– calibration adapter with hose nozzles (order no. 68 10 536)

– hose, type appropriate to the gas properties (e.g. FKM hose order no. 12 07 068)

1. Connect hose to calibration adapter and test gas cylinder.

2. To discharge the test gas, connect a hose to the second connection of the calibration adapter.

3. Plug the calibration adapter onto the sensor.

Polytron

OK

2SWLRQ Using test gas ampoules

Test gas ampoules are only used for the sensitivity adjustment for the target gas.

Equipment:

– calibration flask (order no. 68 03 407) with the corresponding adapter

– Test gas ampoule


Calibration

● Plug the calibration flask onto the sensor.

OK

68 07 407

6.2.2

2SWLRQ

Gas detector with pump module

If a pump module is used, equipment is required that makes it possible to feed the unpressurised test gas into the volume flow of the pump.

Using a gas bag

Equipment:

– Gas bag

– Test gas cylinder


● Connect hoses to the pump module.

Do not connect the hose to the gas bag until calibrating.

OK

+

2SWLRQ Using test gas cylinder and flowmeter

Equipment:

– test gas cylinder with pressure reducer, in the case of aggressive gases with stainless steel pressure reducer

– hose distributor

– flowmeter



● Connect hoses. Integrate flowmeter with hose distributor.

OK

+

Calibration

2SWLRQ Using a test gas ampoule

Test gas ampoules are only used for the sensitivity adjustment for the target gas.

Equipment:

– calibration flask (order no. 68 03 407)

– adapter (order no. 68 04 620)

– Test gas ampoule


1. Plug the adapter onto the calibration flask.

2. Connect hoses.

OK

68 07 407

68 04 620

+

6.3 Adjusting the zero-point

Prerequisite:

– The warm-up phase of the sensor is completed (see section 5.5).

– Test gas supply is prepared (see section 6.2).

Zero adjustment can be aborted at any time. To abort during calibration, select

Previous .

If no entries are made, the gas detector automatically switches over to measuring mode after 15 minutes.

Procedure, using an EC-H 2 S sensor as an example

1. Select Calibration > Zero calibration > EC-H 2 S .

 The 4-20 mA interface issues the maintenance signal.

2. Supply zero gas or fresh air, respectively:


Calibration

Option Description

Test gas cylinder Set the pressure reducer to a flow rate of 500 mL/min.

Gas bag

Test gas cylinder and flowmeter

Fill the gas bag using the test gas cylinder. Connect hose leading to the pump module with gas bag.

Slowly open the pressure reducer of the test gas cylinder until the flowmeter indicates a flow.

3. Select Next .

 The current value and the gassing time are displayed.

In the case of EC-O 2 sensors, only checking of the zero-point value is performed instead of zero adjustment. The zero-point value must be less than

0.6 volume percent. If this is not the case, an error is set in the sensor.

4. When the displayed measured value has stabilised (max. wait time = 3 minutes), select calibrate .

5. End the zero gas supply.

6. Select Back to menu .

Prerequisite:

– Zero adjustment has been performed (see section 6.3).


Span calibration can be aborted at any time. To abort during calibration, select

Previous .

If no entries are made, the gas detector automatically switches over to measuring mode after 15 minutes.


1. Select Calibration > Span calibration > EC-H 2 S .


 The values for the span calibration using the target are displayed.

Example:

" Cal.gas : H 2 S

Cal.unit : ppm

Concentr.: 000025 "

If the displayed values do not match the target used, use the control keys to adjust the values to the target gas.

2. Select Next

3. Supply target gas:



Test gas ampoule Break the test-gas ampoule in the calibration flask.

Gas bag Fill the gas bag using the test gas cylinder. Connect hose leading to the pump module with gas bag.




6.5

Calibration

4. Select Next .

 The current value and the gassing time are displayed.

5. When the displayed measured value has stabilised (max. wait time = 3 minutes), perform the calibration.

a. Select calibrate .

 The target value, the current value and the sensor vitality (bar diagram) are displayed.

b. Select Accept value .

c. End the target gas supply.

 The calibration interval and the date for the next calibration are displayed.

d. Select Back to menu .

Performing automatic calibration

Automatic calibration involves zero adjustment and span calibration in a combined process. Automatic calibration can be used alternatively instead of separate zero adjustment and span calibration.

Requirements:

– The automatic calibration function is activated (see section 11.2).

– The warm-up phase of the sensor is completed (see section 5.5).


Procedure, using an EC-O 2 sensor as an example

The process of automatic calibration for EC-O 2 sensors is shorter.

1. Select Calibration > Auto calibration .


 " Fresh air cal.

is running!

" is displayed.

Instead of performing zero adjustment, the zero-point value is checked. After that, the sensitivity is calibrated.

 If the automatic calibration was successful, the message " EC-O 2 : ok " is displayed.

2. Select Back to menu .


1. Select Calibration > Auto calibration .


 The zero-point is adjusted. " Fresh air cal.

is running!

" is displayed.

If the zero adjustment was successful, span calibration is performed.

 The values for the span calibration using the target are displayed.

Example:

" Cal.gas : H 2 S

Cal.unit : ppm

Concentr.: 000025 "

If the displayed values do not match the target used, use the control keys to adjust the values to the target gas.

2. Supply target gas.


Troubleshooting



Test gas ampoule Break the test-gas ampoule in the calibration flask.

Gas bag Fill the gas bag using the test gas cylinder. Connect hose leading to the pump module with gas bag.



3. Select Next .

 The current measured value and the gassing time are displayed.

4. Wait until the measured value has stabilised. When the displayed measured value has stabilised (max. wait time = 3 minutes), select calibrate .

With some sensors, the gas detector recognises by itself if the measured value has stabilised. If one of this sensors is installed, the gas detector starts the calibration automatically, without the need to select calibrate manually.

 The target value and the current value are displayed.

5. End the target gas supply.

6. When the current value is equal to the target value, select Accept value .

7 Troubleshooting

If the display is without function, have the gas detector checked by Dräger.

The fault or warning numbers listed below are displayed in the menu (see

section 4.4.4).

7.1 Fault

Number

# 1

# 2

# 61

# 63

# 64

# 65

# 67

Cause

Serious data error in the measurement module – various causes.

Serious device error – various causes.

Data error on the interface card – various causes

Hardware or software fault in the pump module.

Flow rate of the pump module undershoots the error threshold.

Reliable measurements are no longer possible.

Remedy

Reset the measurement module to the

factory settings (see section 9.8).

If the error persists, have the gas detector checked by DrägerService.

Have the gas detector checked by

DrägerService.

Have the gas detector checked by

DrägerService.

Replace the pump module.

Check hoses for blockages, re-adjust the flow rate, if necessary.

3-wire cable interrupted.

Check connections

Relay module not contacted correctly.

Check the connector of the relay module or re-plug.


Troubleshooting

Number

# 100

# 101

# 102

# 103

# 106

# 107

# 108

# 109

# 121

# 125

# 129

# 130

# 134

# 136

Cause

Measurement module cannot detect a sensor.

Sensor data error in the gas detector.

Gas detector does not support the sensor version.

Sensor data error in the gas detector.

Zero adjustment failed

Span calibration failed

Sensor data error

Device error

Remedy

Remove and re-install the sensor (see

section 5.2).

If the error persists, check the sensor connector or replace the sensor.

Remove the sensor and install it again.


Use a compatible sensor as per spare parts list.

Reset the sensor to the factory set-

tings (see section 11.6).


Perform zero adjustment again (see

section 6.3).

Perform span calibration again (see

section 6.4).

Replace the sensor.

Check sensor contacts, otherwise have the gas detector checked by

DrägerService.

Perform automatic calibration again

(see section 6.5), making sure that the

ambient air is free from foreign gas.

Replace the sensor.

Fresh air calibration failed

(1st step of automatic calibration)

Sensor not ready for operation.

Sensor electrolyte has evaporated.

Sensor lock is switched on.

A sensor with a different part number than previously configured is installed.

Contact between sensor and measurement module is faulty.

Sensor hardware fault.

Replenish sensor electrolyte.

Switch off the sensor lock (see

section 11.4) or use a new sensor with

the same part number.

Check sensor contacts. Remove and re-install the sensor several times.

If the error persists, replace the sensor.

Remove and re-install the sensor. If the error persists, replace the sensor.

7.2 Warnings

Number

# 1

Cause

Data error in the gas detector – various functions (e.g. for data storage) can be impaired.

Remedy

Reset the gas detector to the factory

settings (see section 9.8).



Troubleshooting

# 106

# 111

# 112

# 114

# 115

Number

# 51

# 52

# 53

# 58

# 59

# 64

# 119

# 120

# 131

# 132

# 135

Cause

Data logger in hold mode

(Stack) is filled to 100 %. It is no longer recording data.

Data logger in hold mode

(Stack) is filled to 90 %.

Remedy

Read out the data, clear and restart

the data logger (see section 12).

Read out the data as soon as possible, then clear and restart the data logger.

No valid date or time is set. Set time and date (see section 9.4).

Dongle was removed without having been deactivated.

Deactivate Dongle prior to removing

(see section 9.9).

Hardware fault of a dongle. Replace the dongle.

The pump is worn Replace the pump module.

Flow rate of the pump module undershoots the warning threshold. Reliable measurements will soon no longer be possible.

Zero deviation too high.

Check hose for blockage, re-adjust the flow rate, if necessary.

Sensor not operated in the specified temperature range.

Perform zero adjustment (see

section 6.3).

Operate sensor in the specified temperature range.

Sensor near end of life.

Calibration interval expired.

The sensor was exposed to an excessively high gas concentration for a long period.

The sensor is not yet fully warmed up. Measuring errors can occur.

Replace the sensor (see section 8.2).

Calibrate the sensor again (see

section 6).

Reduce excessive gassing.

Wait until the sensor has fully warmed up.

The sensor was exposed to an excessively high gas concentration for a long period.

The sensor will soon no longer be ready for operation.

Sensor electrolyte has evaporated. Measurements will soon no longer be possible.

Information, e.g. the part number or the serial number, is not available.

Reduce excessive gassing. If the problem persists, replace the sensor

(see section 8.2).

Replace the sensor (see section 8.2).

Replenish sensor electrolyte.

Disconnect the gas detector from the mains and restart it.



Maintenance

8 Maintenance

8.1 Preparing a maintenance plan

The gas detector must be serviced at regular intervals. The intervals and activities are defined in the maintenance plan by the person who is responsible for the gas detection system.

The maintenance interval recommended by Dräger is 6 months.

Dräger recommends the following activities:

– Perform tests:

– Check signal transmission to the controller (see section 10.2.9).

– Test the alarm relay and the fault relay (only with relay module, see

section 9.2.6).

– Checking the display for proper functioning 4.1.5

– Service the sensor (e.g. replace the selective filter).

– Calibrate the sensor (see section 6 Calibration).

– If a pump module is used:

– Check the aspiration path for tightness.

– Compare the flow rate at the aspiration location and downstream of the gas detector.

– Carry out inspection at regular intervals in accordance with applicable national regulations (e.g. EN 60079-29-2, EN 45544-4, T021/T023).

8.2 Replacing the sensor

Even in explosion-hazard areas, the sensor can be replaced without interruption of the supply voltage.

1. If a sensor of a different type is installed, it may be necessary to switch off the

sensor lock (see section 11.4).

2. Activate the sensor replacement function (see section 11.1). Otherwise a fault

signal will be issued when the sensor is pulled off.


4. Unscrew the bayonet ring from the gas detector.

5. Remove the old sensor.

6. With the Dräger logo pointing forward, insert the sensor into the sensor opening.




Device settings

9.1

9.1.1

Pump (only with pump module)

Adjusting the pump output

Equipment:

– Pump adapter (order no. 8320900)

– flowmeter

1. Select Settings > Instrument > Pump > Pump flow .


 " Flowalarm woud be disabled . Please usea Flowmeter ." is displayed.

 If a relay module is installed, the fault relay is energised.

2. Connect pump adapter and flowmeter.

OK

L/min

+

9.1.2

9.2

9.2.1

3. Select Next .

4. Adjust the pump output setting and check at the flowmeter. For a short response time select a high pump throughput rate.

5. Select Next .

 The flow thresholds are displayed.

Flow threshold for error: 0.3 L/min

Flow threshold for notice: 0.4 L/min

Displaying the pump runtime

– Select Settings > Instrument > Pump > Operating time .

Alarms (only with relay module)

Switching the alarm on or off

1. Select Settings > Instrument > Alarm > Alarm on/off .

enable Alarm relay is switched on.


Device settings

9.2.2

9.2.3

disable Alarm relay is switched off.

No alarm is reported via the alarm relays and the HART interface.

The fault relay is energised to display the status of the disabled alarm relays. The display shows a warning symbol .

2. Select Enable or Disable .

Configuring the relay

1. Select Settings > Instrument > Alarm > Relay settings .

2. Make the settings.

Normally energized

Alarm erregt

In normal state (no alarm), a current flows through the coil of the relay (fail-safe).

The coil of the relay is flowed through by current in alarm state.

Overview of alarm settings

Alarm condition met

Alarm configuration

Acknowledging

Latching Non Acknowledging

Non Latching

Acknowledging

Non Acknowledging

Acknowledge key operated

Acknowledge key not operated

Alarm disabled

Alarm enabled

Alarm disabled

Alarm enabled

Alarm enabled

Alarm enabled

Alarm enabled

Alarm enabled

Alarm condition ceases

Acknowledge key operated

Acknowledge key not operated

Alarm configuration

Acknowledging

Latching Non Acknowledging

Non Latching

Alarm disabled

Alarm disabled

Alarm enabled

Alarm enabled

Acknowledging


Alarm is disabled

Alarm is automatically disabled if the alarm condition ceases



1. Select Settings > Instrument > Alarm > Cfg. Alarm A1 or Cfg. Alarm A2 .


Device settings

9.2.5

2. Make the settings. Use Next to call up the steps in turn.

a. Set the value for the alarm threshold.

Min./max. Alarm thresholds are dependent on the sensor.

Alarm thresholds for O 2 sensors can be set anywhere between 0.1 vol% and

25 vol%.

b. Set the alarm direction.

Rising

Falling

An alarm is issued if the measured value is above the alarm threshold.

An alarm is issued if the measured value is below the alarm threshold.

c. Set the latch mode.

If the gas detector is used to detect oxygen, Alarm A1 and Alarm A2 must be configured as latching. If both alarm thresholds have the same direction

(activation when the oxygen concentration is increasing or decreasing), the first alarm may be configured as Non Latching .

Latching

Non Latching

Alarm relays do not change their state automatically when the alarm condition ceases. Alarm must be acknowledged manually.

Alarm relays change their state when the alarm condition ceases. Alarm does not need to be acknowledged manually. The gas detector is no longer in alarm state.

d. Set the alarm acknowledge mode. For safety-relevant switching actions, configure the alarm as Non Acknowledging .

Acknowledging Alarm relays can be acknowledged although an alarm is active.


Alarm relays can only be acknowledged when the alarm is no longer active.

e. Set the hysteresis value.

This feature prevents the relay from being energised and deenergised in rapid sequence.

Example: The alarm threshold was set to 40 ppm and the hysteresis to

3 ppm. The alarm remains active until the measured value has fallen below

37 ppm.

f. At the overview of the settings made, select Confirm .

Switching alarm acknowledgement on or off at the gas detector

Enables/disables the possibility to acknowledge alarms at the gas detector by

When this function is switched off and the alarm is configured as latching, an alarm can only be acknowledged by a voltage interruption to the gas detector.

1. Select Settings > Instrument > Alarm > Acknowledge mode .



9.6

9.7

9.2.6

9.4

9.5

Device settings

Testing the alarm relay and the fault relay

During the relay test, an error state is simulated and the corresponding relay is energised.

1. Select Settings > Instrument > Alarm and the desired signal condition.

Set Alarm A1

Set Alarm A2

Set Fault

Simulate pre-alarm (alarm 1).

Simulate main-alarm (alarm 2).

Simulate fault signal.


1. Select Settings > Instrument > Passwords and the password to be changed.

2. Set the password.

Setting date and time

1. Select Settings > Instrument > Date and time .

2. Select the line for date or time.

3. Make the settings.

Setting the time format

1. Select Settings > Instrument > Time format .

2. Select the line for the time format of date or time.

3. Select the time format (European or American).

Setting the language

1. Select Settings > Instrument > Language .

2. Select the language.

Configuring the function key

1. Select Settings > Instrument > Function key .

2. Select the function to be called.

Show graph

Show Fault

Show Notice

1) Displays the measured values of the sensor graphically on a time axis.

Shows existing errors.

Shows existing warnings.

Show Fault Codes Shows fault codes for existing errors.

Sensor Vitality 2) Shows the sensor vitality.

1) Only works with the data dongle

2) Only works with the diagnostic dongle


Communication settings

9.8 Resetting the measurement module to the factory settings

All configurable parameters are reset.

1. Select Settings > Instrument > instrument .

2. Select Confirm .

In the event of an error or prior to removing, this function can be used to deactivate dongles. Dongles are re-activated by switching the gas detector off and back on again.

1. Select Settings > Instrument > SW Dongle and the dongle to be deactivated.

2. Select Fkt. deactive .

 The desired dongle is deactivated.

10.1.1

10.1.2

Setting the polling address

The polling address configures the gas detector for analogue operation or for

Multidrop operation.

HART command: #6 (Write Polling Adress)

1. Select Settings > Communication > Hart interface > Polling address .

2. Set the polling address and select Confirm .

0

1 to 15

Selects analogue operation

Selects Multidrop operation The 4-20 mA interface is deactivated and set to a constant current of approx.

3 mA.

Configure all devices of one line with different polling addresses. It is advisable to use a sequence starting with 1.

Displaying the unique identifier

The unique identifier (unique HART address) must be known for nearly all HART commands for addressing.

HART commands:

– #0 (Read Unique Identi fi er)

– #11 (Read Unique Identi fi er associated with Tag)

1. Select Settings > Communication > Hart interface > Unique identifier .

2. The unique identifier is displayed.


10.1.3

10.2.1

10.2.2

10.2.3

10.2.4

10.2.5


Setting the HART tag

The HART tag (session ID designation) is used to identify a session ID.

1. Select Settings > Communication > Hart interface > Tag .

2. Set the HART tag and select Confirm . The HART tag can consist of up to 8 alphanumeric characters.

Setting the full scale value

The full scale value is equal to the measured value at which 20 mA are output. The standard full scale value of the sensor is used as default.

For information about the settings range for the full scale value refer to the instructions for use for the sensor used. For DrägerSensor O 2 and O 2 LS see

section 14.3.

1. Select Settings > Communication > Analog interface > Analog setpoint .

2. Set the full scale value and select Confirm .

Information about the warning signal

In the event of a warning signal a warning level is issued on the 4-20-mA interface for the T2 interval. For the remainder of the time of T1, the measured signal is transmitted.

[mA]

20

4

3

T

2 t

[s]

T

1

Switching the warning signal on/off

1. Select Settings > Communication > Analog interface > Warning on/off .


Setting the warning interval

1. Select Settings > Communication > Analog interface > Warning interval .

2. Set the times for warning intervals T1 and T2 and select bestätigen .

Setting the electric current value of the warning signal

1. Select Settings > Communication > Analog interface > Warning value .

2. Set the electric current value and select Confirm .



10.2.6

10.2.7

10.2.8

10.2.9

Setting the signal type of the maintenance signal

1. Select Settings > Communication > Analog interface > Maint. signal .

2. Select the signal type.

static dynamic

A constant current signal is issued. The electric current can be configured.

An alternating signal of 3 and 5 mA with a frequency of approx. 1 Hz is issued.

[mA]

5

3

0,7 t

[s]

1,1

Adjusting the electric current of the static maintenance signal

The electric current can only be adjusted if the maintenance signal is set to static.

Otherwise the function is not available.

1. Select Settings > Communication > Analog interface > Maint. value .

2. Set the electric current value and select Confirm .

Adjusting the zero shift of the 4-20 mA signal

The 4 mA zero-point of the 4-20 mA signal can be shifted by a correction value of

± 0.5 mA.

1. Select Settings > Communication > Analog interface > Offset current .

2. Set the correction value and select Confirm .

Testing the 4-20 mA interface

For testing of the 4-20 mA interface it is possible to issue different currents as test signals simulating different states.

These functions can be used to trigger alarms in the control unit. If necessary, deactivate the alarms in the control unit first.

● To turn on a test signal, select Settings > Communication > Analog interface and the desired test.

● To turn off the test signal select the corresponding option for each test.

10.3.1 Displaying the Neuron ID

The neuron chip is the core piece of the fieldbus component. Each neuron chip has its own neuron ID by which the gas detector is recognised on the LON network.

● Select Settings > Communication > LON > Show Neuron ID .


10.3.2

10.4

Sensor settings

Sending the service PIN

The service PIN is a special connector of the neuron chip. The gas detector can be commissioned by sending its Neuron ID to the LON network by means of the

Service Pin function.

1. Select Settings > Communication > LON > Service-Pin .

2. Select Confirm .

 The Neuron ID is sent.

Configuring the address for the Profibus PA-/

Foundation Fieldbus interface

1. Select Settings > Communication > PA/FF interface > PA Address .

2. Enter the address (settings range 001 to 126).

11.1

11.2

11.3

11.3.1

Activating the sensor replacement function

Activating this function suppresses the fault signal when the sensor is removed, and all sensor data are stored.

● Select Settings > Sensor > Sensor replacem.

.


 " Please remove sensor " is displayed.

If no entries are made, the gas detector automatically switches over to fault mode after 15 minutes.

The maintenance signal remains active until the new sensor has been installed.

Enabling/disabling the automatic calibration function

When the automatic sensor calibration function is disabled, the function cannot be selected in the menu.

1. Select Settings > Sensor > Set Autocal.

.


Enable

Disable

Function is enabled.

Function is disabled.

Sensor test (only with sensor-test dongle or with diagnostic dongle)

Turning the sensor self-text on/off

With the sensor self-test, the gas detector continuously tests the sensor. If the sensor is not working correctly, the gas detector issues a corresponding warning or an error.

1. Select Settings > Sensor > Sensortest > Set sensortest .


Sensor settings

11.3.2

11.4

11.5

11.6

11.7


Performing the sensor self-test manually

1. Select Settings > Sensor and the menu item for the sensor used. Select

Sensor selftest .

2. If a sensor self-test is available (depending on the sensor used and on the device status), select Start Sensortest .

3. Select Confirm .

 The result is displayed after a few seconds.

Turning the sensor lock on/off

1. Select Settings > Sensor and the menu item for the sensor used. Select

Sensorlock .


Enable

Disable

The measurement module will accept a new sensor only if its part number, and hence the sensor type, is the same as for the old sensor.

The measurement module also accepts other sensor types and adopts the default setting of the new sensor. In this case, the configuration of the measurement module is changed.

Editing the measured gas settings

1. Select Settings > Sensor and the menu item for the sensor used. Select Gas-

Cfg .

2. First select the measured gas and then the unit of measurement.

 An overview of the settings is displayed.

3. Select Confirm .

Resetting the sensor to the factory settings

1. Select Settings > Sensor and the menu item for the sensor used. Select basic init Ch .

2. Select Confirm .

 The sensor is reset.

Adjusting the calibration interval

The calibration interval setting is used by the device to determine the time for the next calibration.

Calibration intervals are sensor specific. See sensor data sheet for pre-set calibration intervals and settings ranges.

1. Select Settings > Sensor and the menu item for the sensor used. Select Cal.

Intervall .

2. Set the number of days for the calibration interval.


Data storage setting (only with the data dongle)

12

12.1

12.2

12.3

12.4

12.5

12.6

3. Select Confirm .

Data storage setting (only with the data dongle)

The data logger comprises a measured value logger and an event logger.

The measured value logger can only be evaluated with the GasVision PC software

(Version 5.5 or higher).

Information about the measured value logger

The measured value logger can save at least 3000 measured values. If the sample time is set to 1 minute, the monitoring period runs to approx. 50 hours. The monitoring period can be significantly extended if the trigger mode is turned on.

Information about the event logger

The event logger stores device and sensor events (e.g. overshooting of the A1 threshold value, pump flow faults, etc.). The event logger can save 100 events.

Turning the data logger on/off

1. Select Settings > Datalogger > Datalogr. on/off .


Setting the sample time

1. Select Settings > Datalogger > Cfg Datalogger > Sample Time .

2. Select a sample time.

Setting the evaluation mode

The evaluation mode defines whether peak values or average values are stored for the configured sample time.

1. Select Settings > Datalogger > Cfg Datalogger > Peak/Average .

2. Select an evaluation mode.

Peak

Average

Depending on the measured gas, the maximum or (for

O 2 ) minimum concentration value measured during the selected sample time is stored.

The average value of all concentration values measured during the selected sample time is stored.

Switching trigger mode on/off

With the help of the trigger mode it is possible to store measured values only from a pre-defined trigger value upward.

1. Select Settings > Datalogger > Cfg Datalogger > Trigger on/off .

2. Select an option.


Disposal

12.7

12.8

12.9

Enable

Disable

Measured values are stored only if the measured values

(with respect to the last-stored value) are greater than the configured trigger value.

All measured values are stored during the selected sample time.

Setting the trigger value

The trigger value is the threshold value from which the measured values are stored if the trigger is on. It is expressed as a percentage of the full scale value.

Example: The full scale value is 500 ppm, and a trigger value of 2 % is entered.

The data logger will then only store measured values that deviate from the last stored measured value by 10 ppm.

1. Select Settings > Datalogger > Cfg Datalogger > Trigger value .

2. Enter a value and select Confirm .

Setting the buffer mode

1. Select Settings > Datalogger > Cfg Datalogger > Stack/Roll .


Roll (Roll)

Stack (Stack)

When the storage space of the data logger is used up, the oldest data will be overwritten first.

When the storage space of the data logger is used up it will no longer be possible to store data. An appropriate warning is issued.

Deleting data from the data logger

1. Select Settings > Datalogger .


Clear Datalogger Delete measured values.

Clear Eventlogr.

Delete event data.

13 Disposal

This product must not be disposed of as household waste. This is indicated by the adjacent symbol.

You can return this product to Dräger free of charge. For information please contact the national marketing organizations or Dräger.

Measuring range and metrological properties depend on the installed sensor.

Signal transmission to the control unit


Technical data

Analogue

1)

Measured signal

Zero-point

4 ... 20 mA

4 mA

Full-scale value 20 mA

Sensor drift below zero-point 3.8 ... 4 mA

Over range

Fault signal

Fault at the 4-20 mA interface > 23 mA

Maintenance signal Static signal: 3.4 mA (factory setting)

Range which can be set:

1.0 ... 3.5 mA (3-wire operation)

3.0 ... 3.5 mA (2-wire operation)

Dynamic alternating signal: 5 mA for

0.4 seconds and 3 mA for 0.7 seconds

Warning signal

20 ... 20.5 mA

<3.2 mA

Update rate of the 4-20-mA interface

Digital

Dynamic alternating signal between measured value and warning level.

Range which can be set (warning level):

3.0 ... 3.5 mA (factory setting: < 3.2 mA)

Intervals:

T1: 2-60 seconds

T2: 1-59 seconds and also dependent on T1

1 second

HART

®

-compatible,

Transmission via 2 or 3-core shielded cable

1) Factory setting – Depending on the configured current offset, the values can deviate by

±0,05 mA.

Overshooting or undershooting of the specified supply voltage of the gas detector can lead to faulty indication by the 4 to 20 mA signal.

For applications in compliance with Directive 2014/30/EU, the gas detector should not be operated with a direct current supply grid but with a power supply unit conforming to Protection class II or NEC Class II.

Analogue signal transmission (2-wire)

Supply voltage

(without pump or relay module) at a current of 3 mA at a current of 20 mA

AC voltage component

16.5 ... 30 V DC

8.0 V DC min.

< 0.5 V SS

Analogue signal transmission (3-wire)

Supply voltage

(without pump or relay module)

12 ... 30 V DC


Load

< 0.5 V SS

0 Ohms ... 40 [Ohms/Volt] x (U S1) - 4 V)

1) Actual supply voltage on the gas detector


Technical data

Digital signal transmission (2-wire)

Supply voltage 16.5 ... 30 V DC


Load

< 0.2 V SS ; < 2.2 mV eff (500 ... 10000 Hz)

0 Ohms ... 40 [Ohms/Volt] x (U S1) - 4 V)

1) Actual supply voltage


Supply voltage


12 ... 30 V DC


Load

< 0.2 V SS

230 Ohms ... 40 [Ohms/Volt] x (U

600 Ohms max.

S1) - 4 V),



Supply voltage


12 ... 30 V DC


Load

< 0.2 V SS

230 Ohms ... 40 [Ohms/Volt] x (U

600 Ohms max.

S1) - 4 V),


PROFIBUS

®

PA

Communication rate

Data volume

Bus length

Segment size

Physical layer

Segment current

31.25 kBaud

244 Bytes

1900 m (6233 ft) max.

32 slaves max.

IEC 61158-2; digital, bit-synchronous, Manchester coding

18.1 mA

FOUNDATION TM Fieldbus

Communication rate

Data volume

Bus length

Segment size

Physical layer

31.25 kBaud

128 Bytes

1900 m (6233 ft) max.

240 participants max.

IEC 61158-2; digital, bit-synchronous, Manchester coding

18.1 mA Segment current

General data

Protection class (IEC 60529) IP 66, IP 67

IP 44 (if the relay module is used)

Power consumption

1)

(without analogue signal transmission)

< 50 mW


Technical data

Cable entry

Cable core cross-section

Weight

M20 x 1.5; cable diameter 6 mm (0.24") ...

12 mm (0.47")

0.5 mm

2

(AWG 20) ... 2.5 mm

2

(AWG 13) approx. 0.9 kg (2.0 lb), without pump and relay module

4 years from delivery Life span of the buffer battery for data storage

1) To determine the overall power consumption of the gas detector in the case of use of the relay or pump module, add up the individual power consumption values.

Ambient conditions during operation

Temperature

Pressure

Humidity

–40 ... 65 °C (–40 ... 160 °F)

1)

700 ... 1300 hPa

0 ... 100 % rh, non-condensing

1) The readability of the display is impaired at temperatures below -20 °C (-5 °F) At negative temperatures, the operability of the gas detector is affected be the increasing sluggishness of the display.

Ambient conditions during storage

Temperature

Pressure

Humidity

–40 ... 70 °C (–40 ... 150 °F)

700 ... 1300 hPa

0 ... 100 % rh, non-condensing

Power supply

Operational voltage (DC)

Power consumption

12 V to 30 V at the gas detector

<2 W

Relay switch outputs logical channels principle contacts contact rating temperature resistance of the cables used

Overvoltage category

A1, A2, fault normally energised (for fail-safe operation)

1-pole changeover (SPDT)

5 A at 30 V DC; 5 A at 250 V AC at least 20 °C above the ambient temperature occurring during operation.

II

Ambient conditions

Temperature (during operation)

-40 ... 65 °C (-40 ... 160 °F)

Temperature (during storage) -40 ... 70 °C (-40 ... 150 °F)

Pressure 700 ... 1300 hPa

Humidity 0 ... 100 % rh, non-condensing


Technical data

14.3

Supply voltage (DC) for throughput rate 0.5 L/min 12 V to 30 V at the gas detector for throughput rate 1.0 L/min 16 V to 30 V at the gas detector for throughput rate 1.5 L/min 20 V to 30 V at the gas detector

Power consumption for throughput rate 0.5 L/min <2 W for throughput rate 1.0 L/min <4 W for throughput rate 1.5 L/min <6 W

Settings

Throughput rate

Settings range approx. 0.5 L/min to 1.5 L/min (approx. 30 % to

100 %)

0.5 L/min Factory setting

Warning and alarm

Flow warning

Flow alarm

Interior diameter at the tube connection

0.4 L/min

0.3 L/min

5 mm

Ambient conditions

Temperature (during operation)

0 ... 55 °C (32 ... 130 °F)

Temperature (during storage) -40 ... 70 °C (-40 ... 150 °F)

Pressure 700 ... 1300 hPa

Humidity 0 ... 100 % rh, non-condensing

Operating conditions with DrägerSensor O 2 and O 2 LS

The DrägerSensor O 2 (6809720) is an electrochemical two-electrode sensor for the measurement of oxygen (O 2 ) in the ambient air. The sensor measures the

O 2 -partial pressure. Changes in pressure have an effect on the measured value in this process. For 1013 hPA without oxygen depletion the sensor measures

20.9 vol% O 2 .

Ambient parameters

Pressure

Humidity

Temperature

20.7 to 38.4 in. Hg (700 to 1300 hPa)

10 to 95 % rh, non-condensing

-5 to +40 °C briefly -20 to +55 °C

Storage

Pressure No effect


Technical data

Storage

Humidity

Temperature

Duration


(only relevant if sensor packaging is open)

0 to +40 °C

Storage of sensors is not anticipated. Sensors should be used from the point of arrival. Remaining life span = expected life span - storage period

Effect of ambient parameters

Zero-point

Temperature 1)2)

-20 to 55 °C < ± 0.2 vol% O 2

Sensitivity

-10 to 55 °C

-10 to -20 °C

Pressure

Humidity

-

-

< ±0.2 vol% O

No effect

2

Relative deviation from display at 20 °C

< ± 8%

< ± 16%

Relative deviation from display at 1013 hPa:

< 10% of the measured value / 100 hPa

Relative deviation from display at 50 % rh:

< 2.5 % of the measured value

1) For temperatures below -5 °C the measurement deviation is greater than specified in EN

50104.

2) A calibration at operating temperatures must occur for operating temperature outside the range of -5 °C to 40 °C.

Reaction time

1)

0 to 25 vol% O 2 t 0...20

≤ 10 seconds t

≤

0...90

26 seconds

1) The measured value response time may increase at temperatures below -5 °C.

Stabilisation time: 5 x t 0...90

Measuring range

0-5 vol% O 2 to 0-100 vol% O 2

Standard: 25 vol% O 2

Minimum display: -1.25 vol% O 2

Warm-up time of the sensor

Operation: < 20 minutes / calibration: ≤ 2 hours

The DrägerSensor O 2 LS (6809630) is an electrochemical three-electrode sensor for the measurement of oxygen (O 2 ) in the ambient air.


Pressure 20.7 to 38.4 in. Hg (700 to 1300 hPa)


Technical data


Humidity

Temperature


-40 to +60 °C briefly +65 °C

Storage

Pressure

Humidity

Temperature

Duration

No effect


(only relevant if sensor packaging is open)

0 to +40 °C

Storage of sensors is not anticipated. Sensors should be used from the point of arrival. Remaining life span = expected life span - storage period

Effect of ambient parameters

Zero-point

Temperature

-40 to 65 °C

Pressure

< ± 0.3 vol% O

< ± 0.1 vol% O

2

2

Sensitivity

Humidity No effect

< ± 0.3 vol% O 2

Relative deviation from display at 1013 hPa:

< 2 % of the measured value

/ 100 hPa

Relative deviation from display at 50 % rh:

< 2.5 % of the measured value

NOTICE

Cross-sensitivities

The sensor cannot be used for the measurement of oxygen if helium is present.

► Do not use the sensor for oxygen measurements if helium is present.

CAUTION

Sensor fault

If the sensor is exposed to high concentrations of unsaturated hydrocarbons, alcohol or hydrogen, this can lead to failure of the device.

► Make sure that the sensor is not exposed to such concentrations over a long period.

Reaction time

0 to 25 vol% O 2 t 0...20

≤ 10 seconds

Stabilisation time: 5 x t 0...90

t 0...90

≤ 30 seconds


Measuring range

0-5...25 vol% O 2 , 0-25 vol% O 2

Standard: 25 vol% O 2

Minimum display: -1.25 vol% O 2

Warm-up time of the sensor

Operation: ≤ 20 minutes / calibration: ≤ 6 hours

Technical data


Annex

15 Annex

15.1 Control drawing for UL approval 2)

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Annex

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Annex


Annex

15.4 Information about China RoHS

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Annex

Manufacturer

Dräger Safety AG & Co. KGaA

Revalstraße 1

D-23560 Lübeck

Germany

+49 451 8 82-0

9033002 – IfU 4683.100 en

© Dräger Safety AG & Co. KGaA

Edition: 11 – 2019-09 (Edition: 1 – 2003-09)

Subject to alteration 

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