Dräger PIR 3000 User manual

D
Dräger PIR 3000
en
Infrared Gas Transmitter
Instructions for Use
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Contents
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Contents
For Your Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Explosion-Protection Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
How to Install the Gas Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Terminal box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Splash Guard and Calibration Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Exposure / Process Adapter (see "Accessories/Spare parts" on page 27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dirt Deflector (see "Accessories/Spare parts" on page 27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operational Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Configuration of the Gas Transmitter via Magnetic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Automatic zerosetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Manual zero calibration of the output signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Manual span calibration of the output signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Check signal transmission, check alarm triggering and target gas category indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
How to Change the Target Gas Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Faults, Cause and Remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
General Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
measuring technique characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cross Sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Description of Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Order List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Dräger PIR 3000 infrared gas transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Accessories/Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
ATEX approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
IECEx - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
UL - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CSA - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3
For Your Safety
For Your Safety
Strictly follow the Instructions for Use
Any use of this gas transmitter requires a full understanding and strict adherence to
these instructions.
This gas transmitter is only to be used for the purposes specified here.
Maintenance
Only trained service personnel may repair the gas transmitter.
We recommend signing a service contract with Dräger Safety to have all mainte-
nance jobs carried out.
Only authentic Dräger spare parts may be used for maintenance.
Be sure to read the information contained in the chapter "Maintenance".
Accessories
Only use accessories listed in the order list.
Safe connection of electrical devices
Do not connect electrical devices not mentioned in this manual before contacting
the manufacturer or an expert.
Use in potentially explosive atmospheres
Equipment or components which are used in potentially explosive atmospheres and
were tested and approved according to national, European or international regula-
tions may only be used in conditions specified in the approval and under observation
of relevant legal regulations.
The electrical equipment may not be modified.
The use of defective or incomplete parts is not permissible. When making repairs to
equipment or components of this type, the relevant regulations must be adhered to.
Liability for proper function or damage
The liability for the proper functioning of the gas transmitter is irrevocably transferred
to the owner or operator to the extent that the gas sensor is serviced or repaired by
personnel not employed or authorized by Dräger Safety or if the device is used in a
manner not conforming to its intended use.
Dräger Safety cannot be held responsible for damage caused by non-compliance
with the recommendations given above.
The warranty and liability provisions of the terms and conditions of sale and delivery
of Dräger Safety are likewise not modified by the recommendations given above.
Dräger Safety AG & Co. KGaA
ATTENTION:
The gas transmitter has no user-servicable parts. Unauthorised opening can
lead to a safety-related failure of the gas transmitter. Any unauthorised open-
ing of the gas transmitter invalidates all guarantee claims.

Intended Use
4
Intended Use
The Dräger PIR 3000 infrared gas transmitter is a device used for stationary, contin-
uous monitoring of the concentration of carburetted, combustible gases and
vapours in the ambient air.
The gas transmitter is preconfigured for the gases methane, propane and ethylene.
The operating range respectively comprises 0 to 100% LEL (
L ower E xplosion L imit).
An analogue, 4 to 20 mA output signal is used as measuring value output.
The Dräger PIR 3000 infrared gas transmitter is designed for use in rough ambient
conditions and is suited for installation in hazardous areas of zones 1, 2, 21 and 22
according to the device categories 2G, 3G, 2D, 3D or Class I & II, Div. 1 for hazard-
ous areas. For further information, please observe the installation instructions.
In connection with a central device (e.g. Dräger Regard channel card 4...20 mA):
— warning before explosive concentration level is reached
— automatic initiation of countermeasures which avert the explosion hazard
(e.g. switching on a ventilation)
— device error warning
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Explosion-Protection Approvals
Explosion-Protection Approvals
The explosion-protection approvals are valid for use of the device in gas/vapour-air mixture of combustible gases and vapours
under atmospheric conditions. The explosion-protection approvals are not valid for use in oxygen enriched atmospheres. In case
of unauthorised opening of the enclosure, the explosion-protection approval is forfeit.
The appendix has a copy of the ATEX certificate, which offers relevant information on safety regulations under subjects such as
"Subject matter and type", "Description", "Characteristic quantity" and "Terms/conditions of safe use".
— ATEX
Type IDS 0001
II 2G EEx d IIC T6
0158
II 2D IP6X T80
o
C
–40
o
C ≤ Ta ≤ +65
o
C
Type IITR 001X
II 2G EEx d IIC T6
0158
II 2D IP6X T80
o
C
–40
o
C ≤ Ta ≤ +60
o
C
Types IDS 0011 and ITR 000x:
II 2G EEx de IIC T6
0158
II 2D IP6X T80
o
C
–40
o
C ≤ Ta ≤ +65
o
C
year of construction (by serial number)
1)
BVS 05 ATEX E 143X
1)
The year of construction is indicated by the third letter of the serial number on the type plate: T = 2003, U = 2004, W = 2005,
X = 2006, Y = 2007, Z = 2008, A = 2009, B = 2010, C = 2011, etc.
example: serial number ARUH-0054, the third letter is U, so the year of construction is 2004.
— IECEx
Type IDS 0001:
Ex d IIC T6, DIP A21 IP6X T80
o
C
–40
o
C ≤ Ta ≤ +65
o
C
Types IDS 0011 and ITR 000x:
Ex de IIC T6, DIP A21 IP6X T80
o
C
–40
o
C ≤ Ta ≤ +65
o
C
BVS 05.0011X
—UL
(Underwriters Laboratories Inc.)
Type IDS 0001:
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
— CSA
Type IDS 0001:
Class I, Div. 1, Groups A, B, C, D
C22.2, No. 152
CUS
®
LR97594

How to Install the Gas Transmitter
6
How to Install the Gas Transmitter
Only trained service personnel (e.g. of Dräger Safety) may install the gas transmitter
under observation of relevant regulations.
Installation and commissioning are described in "Dräger PIR 3000 Installation
Instructions", supplied with the gas transmitter.
Mounting Location
The protecting effect of the gas transmitter depends on the selection of the mount-
ing location. By taking the site's air flow conditions into account, the best possible
mounting location should be chosen as close as possible to where a decisively
noticeable rise in gas concentration can be expected in case of a leakage, i. e.
— as close as possible to the potential leakage place
— when monitoring gases and vapours which are lighter than air:
above the potential leakage place
— when monitoring gases and vapours which are heavier than air:
near to ground.
In addition, it must be assured that:
— the air circulation in the gas transmitter vicinity is not hindered
— the danger of mechanical damage is reduced as far as possible
— the gas transmitter is sufficiently accessible for maintenance purposes. Especially
the configuration via magnetic pin requires a clearance of approx. 20 cm around
at least half of the sensor perimeter.
The gas transmitter can be mounted horizontally as well as vertically.
Mechanical Installation
Terminal box
The gas transmitter is designed to be directly attached to a terminal box.
Approved connector boxes of the following makes are available as gas transmitter
accessories: EEx d (explosion proof, 3/4" NPT) and EEx e (increased safety, M25) -
(see "Order List" on page 27).
● The enclosed O-ring seal must be used for a connection using type of explosion
protection EEx e, to maintain the housing protection class.
The M25 nut (torque of 15 Nm ±3 Nm) must be secured against self-loosening a
using thread locking adhesive, e.g. Loctite
®
.
● Any unused cable entry openings at the terminal box must be closed using ap-
proved plugs.
Splash Guard and Calibration Adapter
We recommend using the supplied accessories - splash guard (1) and calibration
adapter (2) - to increase protection against water jets and contamination.
The splash guard is held by a fixture provided with screw-thread, which is also used
as calibration adapter.
The correct fit of the calibration adapter must be ensured. To correctly fit the calibra-
tion adapter, tighten it by hand until the sealing line leaves a permanent mark in the
splash guard.
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7
How to Install the Gas Transmitter
Gas Exposure / Process Adapter ( see "Accessories/Spare parts" on page 27 )
Instead of the calibration adapter, a gas exposure / process adapter can optionally
be fitted to the gas transmitter for continuous flow operation.
— Suitable for flow rates between 1 and 3 L/min.
— Use external pump to ensure gas flow.
— External flow monitoring required.
— Also suitable to apply calibration gas.
Assembly:
●
Unscrew the calibration adapter from the gas transmitter. While doing so, leave
splash guard on the gas transmitter.
●
Screw gas exposure / process adapter onto the gas transmitter and tighten firmly
by hand.
●
Check the gas-carrying system for leaks, e.g. with a soap bubble test.
Dirt Deflector ( see "Accessories/Spare parts" on page 27 )
Instead of the calibration adapter, a double-walled dirt deflector can optionally be fit-
ted to the gas transmitter. This is recommended for locations with a high rate of con-
taminations through salt crusts, oil films, resin or similar substances. In addition to
the dirt deflector, the use of a splash guard is strongly recommended.
● Also suitable to apply calibration gas.
Assembly:
— Unscrew the calibration adapter from the gas transmitter. While doing so, leave
splash guard on the gas transmitter.
— Tighten dirt deflector by hand on the gas transmitter until the sealing line leaves a
permanent mark in the splash guard.
The dirt deflector is not tested according to EN 61779.
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How to Install the Gas Transmitter
8
Electrical Installation
The entire wiring must correspond with applicable local regulations concerning the installation of electrical devices in potentially
explosive atmospheres. In case of doubt, the official responsible authorities are to be consulted prior to installation of the device.
We recommend a three-core, screened connection cable (mesh wire shield with a shielding factor of ≥ 80 %).
●
If the corresponding connection is available:
Electrically connect the terminal box with earth.
●
For installation in protection pipe: cast protection pipe seals and allow to harden.
●
Do not connect gas transmitter to the power supply before the wiring is complete and has been tested.
Connection Diagram:
Colour code of connecting terminals and/or leads at the gas transmitter:
Attention:
Earth leakages on two phases can cause EMC problems. To avoid these problems, the cable screen may only be con-
nected to earth potential on one side (either at the central unit or at the gas transmitter). In most cases we recommend
connecting the cable screen to the PE terminal of the terminal box instead of connecting it to the central device.
1 = black = – (common reference potential)
2 = brown = signal output 4 to 20 mA
3 = red = + (10 to 30 V DC)
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red
brown
black
RI
4 to20 mA
10 to 30 V DC
at gas transmitter
U

9
How to Install the Gas Transmitter
— The leads between central device and gas transmitter must have a sufficiently low
resistance to ensure the correct supply voltage at the gas transmitter. The maxi-
mum resistance per core is calculated as follows:
Example: With U
C
= 24 V, the result is a maximum resistance per core of R = 35 Ω .
With cable lengths per core of 1000 m, the resistance per unit length
R’ = 35
Ω /1000 m = 35 Ω /km may not be exceeded.
— The maximum resistance of the loop R
I
(sum of the internal resistance of the cen-
tral device and of the cable resistance of the signal line) depends on the transmit-
ter supply voltage as described below:
R = 2.5 x U
C
– 25
with R: maximum resistance per core
U
C
: voltage supplied by central device in volts (usually depends on the
supply voltage of the central device)
NOTICE:
Cable resistance deviations caused by temperature influences, transition
resistances of terminals, etc. can also contribute to the fact that the calcu-
lated cable length can not be fully used.
Supply voltage at
the transmitter
maximum resistance of
the loop R
I
10 V 200 Ω
12 V 300 Ω
14 V 390 Ω
16 V 480 Ω

How to Install the Gas Transmitter
10
Commissioning
The Dräger PIR 3000 infrared gas transmitter is preconfigured and ready for use
after installation.
●To avoid false alarms, the alarm call to the central device is to be deactivated.
●When the supply voltage is applied, the gas transmitter automatically performs a
self check (10 seconds). Then it uses the calibration (see page 12) and target gas
category set for delivery.
For the duration of the self test, a signal of 1 mA is issued.
●Wait for the running-in period of one minute to expire. No settings can be changed
at the gas transmitter during this phase. During the running-in period, the gas
transmitter emits a 1 mA signal.
●Check signal transmission and adjust if required (see "Checking the signal trans-
mission", "Checking the alarm trigger" and "Displaying the target gas category"
on page 16).
●Check setting of the target gas category for the intended use. Set target gas
category if required (see "Changing the target gas category" on page 17).
●Check the calibration of the gas warning system (see "Calibration" on page 12).
●Reactivate the alarm call to put the system back to normal operating state.
NOTICE:
To prevent moisture condensation on the optic surfaces of the device, parts of
the transmitter housing are heated from the inside. This can increase the
surface temperature by approx. 5 oC.

11
Operational Characteristics
Operational Characteristics
The gas transmitter generates an output signal which is proportional to the meas-
ured gas concentration. The factor of proportionality between displayed value and
the measured gas concentration is determined by the span calibration of the gas
transmitter (see "Manual span calibration of the output signal." on page 15).
The gas transmitter regularly runs self tests for numerous internal functions. As soon
as a divergence from normal operation is detected, the device will edition a fault
message.
Output Signals of the Device:
Display of Output Signal
zero point 4 mA
full scale deflection 20 mA
under-range 3.8 mA to 4 mA
over-range 20.0 mA to 20.5 mA
span gas signal to indicate begin and
successful termination of gas transmitter
calibration via magnetic pin
3 mA
Fault and inlet signal (during self check
and running-in period)
1 mA
Warning (while increasing the Drift of the
zero point into the negative range)
2 mA

Operational Characteristics
12
Calibration
A functional check and - if necessary - a calibration must be carried our regularly for
gas warning systems (see page 19, Maintenance).
Zero gas and test gas are to be applied for functional check and calibration of the
infrared gas transmitter Dräger PIR 3000. For this, the gas is applied either with
— the calibration adapter in connection with the splash guard (see page 5, part of
the scope of delivery) or
— the gas exposure / process adapter (see page 6 and order list) or
— the dirt deflector in connection with the splash guard (see order list).
The required gas flow rate for functional check and calibration is as follows:
— 0.5 to 1 L/min. for the calibration adapter with splash guard and the dirt deflector
with splash guard in closed rooms at wind speeds up to 5 m/s (3 Beaufort),
— 1 to 2 L/min. for the calibration adapter with splash guard and the dirt deflector
with splash guard at wind speeds up to 27 m/s (10 Beaufort),
— 0.5 to 3 L/min. for the gas exposure / process adapter.
The correct fit of the calibration adapter must be ensured. To correctly fit the calibra-
tion adapter, tighten it by hand until the sealing line leaves a permanent mark in the
splash guard.
Nitrogen, or synthetic air or fresh air (hydrocarbon content <50 ppm) can be used for
zero point calibration.
Commercially available calibration gas can be used to calibrate the respective target
gas category (methane, propane, ethylene). The highest accuracy is achieved using
test gas concentrations of 40 to 70 percent of the measurement span.
CAUTION:
Never inhale test gas. Danger to health!
Observe the safety information in the corresponding safety data sheets.
Ensure that gases are vented or otherwise guided outside the building.

13
Operational Characteristics
Configuration of the Gas Transmitter via Magnetic Pin
A magnetic pin can be used to change the settings of the Dräger PIR 3000 infrared
gas transmitter (see "Accessories/Spare parts" on page 27) as follows:
— Automatic zerosetting
— Manual zero calibration of the output signal. 1)
— Manual span calibration of the output signal. 1)
— Check signal transmission, check alarm triggering and target gas category indication.
1)
— Change the target gas category. 1)
Automatic zerosetting
●Deactivate alarm activation of the central device.
●Expose the gas transmitter to nitrogen, synthetic air, resp. fresh air via calibration
adapter and wait until measurement value stabilises.
●Place the magnetic pin onto the transmitter surface area marked by the " "
icon and hold it there (within the black frame) for at least 5 seconds. The output
signal of the gas transmitter changes after five seconds to the display of the span
gas signal (5 mA) as long as the magnetic pin is held against it. At the same time
a zerosetting of the optical measuring unit is carried out automatically.
●Remove the magnetic pin. After 30 seconds, the device exits the automatic zero-
setting routine. As confirmation of the automatic zerosetting, the output signal
changes back to the span gas signal (3 mA). This signal is indicated for same pe-
riod as time as the automatic zerosetting routine.
1) A second person is required as helper for these tasks.
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Operational Characteristics
14
Manual zero calibration of the output signal.
●Deactivate alarm activation of the central device.
1Expose the gas transmitter to nitrogen, synthetic air, resp. fresh air via calibration
adapter and wait until measurement value stabilises.
2Place the magnetic pin onto the transmitter surface area marked by the " "
icon and hold it there (within the black frame) for at least 5 seconds. The output
signal of the gas transmitter changes after five seconds to the display of the span
gas signal (5 mA) as long as the magnetic pin is held against it. At the same time
a zerosetting of the optical measuring unit is carried out automatically.
3Remove the magnetic pin. The output signal of the gas transmitter changes back
to the previous display. The device is now set to zero point calibration routine.
While in this routine, the output signal will decrease resp. increase, depending on
whether the magnetic pin is placed on either of the areas marked by the " "
or " " icons.
4Adjust the zero point signal by placing the magnetic pin on one of the areas
marked by the " " or " " icons.
5Remove the magnetic pin. The device terminates the zero point calibration routine
after 30 seconds without further settings being carried out. As confirmation of the
successful calibration, the output signal changes back to the span gas signal (3
mA). This signal is indicated for same period as time as the zerosetting calibration
routine.
6Terminate exposure to gas.
●Reactivate alarm activation of the central device.
ATTENTION:
The calibration is automatically terminated and new calibration parameters
are not saved if the gas concentration measured by the gas transmitter
changes during the calibration procedure (e.g. because the calibration gas
cylinder fell empty during the calibration procedure). In this case, the gas
transmitter returns to normal operation without displaying the span gas signal
as confirmation.
0
S
00823812_01.eps
0
0
S
0S
00923974_02_en.eps
S00
time
display
–6.25 %LEL
(3 mA)
0
I(1) I(2) I(3) I(4) I(5) I(6)

15
Operational Characteristics
Manual span calibration of the output signal.
The span calibration of the gas transmitter is only possible under the following
conditions:
— The last zero calibration of the device was less than one hour ago.
— The span gas concentration is sufficiently high to effect a display on the device of
at least 20% LEL.
●Deactivate alarm activation of the central device.
1Use calibration adapter to expose gas transmitter to test gas and wait until meas-
urement value stabilises.
2Place the magnetic pin onto the transmitter surface area marked by the " "
icon and hold it there (within the black frame) for at least 5 seconds. The output
signal of the gas transmitter changes to the display of the span gas signal (3 mA).
3Remove the magnetic pin. The output signal of the gas transmitter changes back
to the normal display. The device is now set to span calibration routine. While in
this routine, the display will decrease resp. increase, depending on whether the
magnetic pin is placed on either of the areas marked by the " " or " "
icons.
4Adjust the output signal by placing the magnetic pin on one of the areas marked
by the " “ or " “ icons.
5Remove the magnetic pin. The device terminates the span calibration routine after
30 seconds without further changes being made and saves the new calibration
parameter. The output signal momentarily switches back to the span gas signal
display to confirm a successful calibration.
6Stop the exposure to gas, then wait for the display to fall back to zero.
●Reactivate alarm activation of the central device.
0
S
00623812_01.eps
S
0S
0S
01023974_02_en.eps
S
S0
time
display
–6.25 %LEL
(3 mA)
test gas concentration
0
I(1) I(2) I(3) I(4) I(5) I(6)

Operational Characteristics
16
Check signal transmission, check alarm triggering and target gas category
indication
The gas transmitter can create an output signal of 80 % of the full scale value, even
without exposure to test gas. This 80% signal can be used to
— check the signal transmission of the central device,
— match central device and sensor signal,
— check the alarm triggering of the gas warning system.
After issuing the 80% signal, the target gas category set at the gas transmitter is dis-
played before the gas transmitter returns to normal operation.
●De-energising the alarm activation of the central device (not during alarm testing).
●Expose the gas transmitter to nitrogen, synthetic air, resp. fresh air via calibration
adapter and wait until measurement value stabilises.
●Place the magnetic pin onto the transmitter surface area marked by the " "
icon and hold it there (within the black frame) for at least 5 seconds. The output
signal of the gas transmitter changes after five seconds to the display of the span
gas signal (5 mA) as long as the magnetic pin is held against it. At the same time
a zerosetting of the optical measuring unit is carried out automatically.
●Remove the magnetic pin. After 30 seconds, the device exits the automatic zero-
setting routine. As confirmation of the automatic zerosetting, the output signal
changes back to the span gas signal (3 mA). This signal is indicated for same pe-
riod as time as the automatic zerosetting routine.
●Check the display of the central device: set point 0 %LEL.
●If required, manually set the zero point at the gas transmitter to a display of
0 %LEL.
●Place the magnetic pin onto the transmitter surface area marked by the " "
icon (within the black frame) and hold it there. The output signal of the gas trans-
mitter changes after ten seconds to the 80% signal as long as the magnetic pin is
held against it.
●Check the display of the central device: set point 80 %LEL.
●If required, adjust the span at the central device until the central device displays
80% LEL. While doing so, observe the operating manual of the central device.
ATTENTION:
The calibration is automatically terminated and new calibration parameters
are not saved if the gas concentration measured by the gas transmitter
changes during the calibration procedure (e.g. because the calibration gas
cylinder fell empty during the calibration procedure). In this case, the gas
transmitter returns to normal operation without displaying the span gas signal
as confirmation.
0
S
00823812_01.eps
0
0
S
00623812_01.eps
S

17
Operational Characteristics
●Remove the magnetic pin. The gas transmitter changes to an output signal which
displays the currently set target gas category according the following table:
— This signal is maintained for 30 seconds. The gas transmitter will then switch back
to normal operation.
— The central device display now matches the output signal of the gas transmitter.
How to Change the Target Gas Category
The gas transmitter supports the linearized and temperature compensated display of
a wide spectrum of gases and vapours. In dependence on the measured gas, you
can select one of the three gas categories "methane", "propane" or "ethylene" stored
in the software. A table which allocates a row of supported gases and vapours is
available in the section "Cross Sensitivities" on page 24.
Changing the target gas category is only possible under the following conditions:
— The commissioning of the device was less than one hour ago.
— The last zero calibration of the gas transmitter was less than one hour ago.
— The gas concentration measured by the device is below 10% LEL (expose to zero
gas if necessary).
To change the target gas category of commissioned gas transmitters, interrupt the
power supply for a short period of time, wait for the running-in period of one minute
to expire, and then carry out an automatic zero calibration (see "Automatic Zero Cali-
bration" on page 13).
Then:
●Deactivate alarm activation of the central device.
●Place the magnetic pin onto the transmitter surface area marked by the " "
icon (within the black frame) and hold it there.
The output signal of the gas transmitter changes after ten seconds to the 80% sig-
nal as long as the magnetic pin is held against it.
target gas category Display [%LEL]
methane 20
propane 40
ethylene 60
ATTENTION:
Using the 80% signal to match central device and transmitter signal without
test gas is no replacement for the span calibration of the gas warning system.
0
S
00623812_01.eps
S

Operational Characteristics
18
●Remove the magnetic pin. The gas transmitter changes to an output signal which
displays the currently set target gas category according the following table:
This signal is maintained for 30 seconds. Within this period of time, the magnetic pin
can be placed upon the area marked by the " " icon to select the next gas listed
in the table. In the process, the output signal of the gas transmitter changes to the
value which corresponds with the newly selected value which corresponds with the
target gas category.
The gas transmitter returns to normal operation if no further entry with the magnetic
pin is performed for 30 seconds.
●Check span calibration (see page 15).
●Reactivate alarm activation of the central device.
Target gas category Display [%LEL]
methane 20
propane 40
ethylene 60
S

19
Maintenance
Maintenance
At regular intervals,
that are to be determined by the persons responsible for the gas warning system
while taking local regulations into account:
●Visual inspection to look for damage and contamination. Special attention is re-
quired for gas entrance to the gas transmitter. Anything that blocks the gas en-
trance to the transmitter, e.g. dirt, ice, precipitation, etc., can prolong the response
times or even completely disable the gas transmitter. Recommended inspection
interval: 3 months.
●Visual inspection of the splash guard. If required, dismount gas exposure / proc-
ess adapter and/or dirt deflector. Clean or replace damaged splash guard.
●Visual inspection of gas exposure / process adapter. Clean or replace damaged
gas exposure / process adapter.
●Visual inspection of the dirt deflector. Clean or replace damaged dirt deflector.
●Check signal transmission and adjust if required (see "Checking the signal trans-
mission", "Checking the alarm trigger" and "Displaying the target gas category"
on page 13).
●Check the calibration of the gas warning system (see "Calibration" on page 9).
Recommended calibration interval: 6 months.
Extending the maintenance intervals is possible if local conditions are taken into
account, and if the recommended maintenance intervals require cleaning, mainte-
nance or setup work. However, we recommend not to extend the maintenance
interval for more than 12 months.
Yearly
Inspection by competent personnel. The inspection intervals are to be individually
determined with regard to safety regulations, process control conditions and device-
related requirements. We strongly recommend that a service contract be signed with
Dräger Safety to have them handle repairs and maintenance.

Faults, Cause and Remedy
20
Faults, Cause and Remedy
Fault Cause Remedy
no output signal gas transmitter is not powered up Check power supply and polarity.
gas transmitter defective Have Dräger Safety check the gas trans-
mitter.
transmitter output signal and central
device display do not match
central device and gas transmitter are
not matched
Match central device and gas transmitter,
see "Calibration" on page 12.
output signal 1 mA ambient temperature too high resp. too
low
Operate gas transmitter within the speci-
fied temperature range, see "Technical
Data" on page 21.
gas transmitter defective Have Dräger Safety check the gas trans-
mitter.
high linearity error wrong target gas category set Change the target gas category, see
"How to Change the Target Gas Cate-
gory" on page 17.
possible calibration range at central
device exhausted
calibration range at central device too
small
Calibrate system at gas transmitter.