Dräger PIR 3000 User manual

D
www.norrscope.com
Dräger PIR 3000
en
Infrared Gas Transmitter
Instructions for Use
00123812_02.eps
0
S

Contents
2
Contents
For Your Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Explosion-Protection Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing 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 28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dirt Deflector (see "Accessories/Spare parts" on page 28) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operational Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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
Substitute Gas Calibration
1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Checking the Signal Transmission, Checking the Alarm Trigger and Displaying the Gas Category . . . . . . . . . . . . . . . . . . . 17
Changing the gas category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Faults, Cause and Remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
General Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Measuring Technique Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Cross Sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Description of Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Order List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dräger PIR 3000 infrared gas transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Accessories/Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
ATEX approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
IECEx - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
UL - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CSA - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3
For Your Safety
For Your Safety
Strictly follow these Instructions for Use
Any use of this gas transmitter requires full understanding of the information pro-
vided and strict adherence to the instructions given.
The gas transmitter is only to be used for the purposes specified here.
Maintenance
Maintenance jobs may only be carried out by trained service personnel.
We recommend signing a service contract to have all maintenance jobs carried out
by Dräger Safety.
Always use original Dräger parts for maintenance.
Be sure to read the information provided in the chapter "Maintenance".
Accessories
Only use accessories mentioned in the order list.
Safe Connection of Electrical Devices
Never connect this device to other electrical devices not mentioned in these Instruc-
tions for Use before consulting the manufacturer or an expert.
Use in Potentially Explosive Atmospheres
Devices or components used in potentially explosive atmospheres after being tested
and approved according to national, European or international regulations may only
be used under the conditions specified in the approval and under observation of rel-
evant legal regulations.
Never modify the electrical equipment.
Never use defective or incomplete parts. Always take relevant regulations into
account when repairing devices or components.
Guarantee of Proper Function / Liability for Damages
If inexpertly serviced or repaired by personnel not employed or authorized by Dräger
Safety, or if the device is used for purposes other than its intended use, the liability
for the proper functioning of the gas transmitter irrevocably passes over to the owner
or the operating company
Dräger Safety will not accept liability claims for damages caused by non-compliance
with the recommendations given above.
The paragraphs on guarantee and liability in Dräger Safety's Terms and Conditions
of Sale and Delivery are not touched by the information given above.
Dräger Safety AG & Co. KGaA
ATTENTION:
The gas transmitter has no user-serviceable parts. Unauthorised opening can
lead to a safety-related failure of the gas transmitter. Opening the device inval-
idates any right to claim under guarantee.

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 covers 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
00223812_01.eps
0
S
00223812_01.eps
0
S

5
Explosion-Protection Approvals
Explosion-Protection Approvals
The explosion-protection approvals are valid for use of the device in gas/vapour-air mixtures of combustible gases and vapours
under atmospheric conditions. The explosion-protection approvals are not valid for use in oxygen-enriched atmospheres. Unau-
thorised opening of the enclosure invalidates the explosion-protection approval.
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 manufacture 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 manufacture 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

Installing the Gas Transmitter
6
Installing 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 the "Dräger PIR 3000 Installation
Instructions" which are 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 28).
●
To maintain the housing protection class, the enclosed O-ring seal must be used
for an EEx e-type explosion protection connection.
Use a thread locking adhesive, e.g. Loctite
®
to prevent the M25 nut (torque of
15 Nm ±3 Nm) from self-loosening.
●
Use approved plugs to close any unused cable entry openings at the terminal box.
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.
Make sure that the calibration adapter is correctly seated. To this end, manually
tighten the calibration adapter to a point where the sealing line leaves a permanent
mark on the splash guard.
0
S
00323812_02.eps
(1)
(2)

7
Installing the Gas Transmitter
Gas Exposure / Process Adapter ( see "Accessories/Spare parts" on page 28 )
For continuous flow operation of the gas transmitter, the calibration adapter can be
replaced with an optional gas exposure / process adapter.
— Suitable for flow rates between 1 and 3 L/min.
— Use external pump to ensure gas flow.
— External flow monitoring required.
— Also suitable for calibration gas application.
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 28 )
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 for calibration gas application.
Assembly:
— Unscrew the calibration adapter from the gas transmitter. While doing so, leave
splash guard on the gas transmitter.
— Manually tighten the dirt deflector on the gas transmitter to a point where the seal-
ing line leaves a permanent mark on the splash guard.
The dirt deflector is not tested according to EN 61779.
01223812_02.eps
0
01323812_02.eps
0

Installing 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, consult the responsible authorities before installing 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 to earth.
●
For installation in protection pipe: cast protection pipe seals and allow to harden.
●
Do not connect gas transmitter and power supply before the wiring has been installed and 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, connecting the
cable screen to the PE terminal of the terminal box has proven to work better than 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)
00423812_01_en.eps
+
0
S
red
brown
black
RI
4 to20 mA
10 to 30 V DC
at gas transmitter
U

9
Installing 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

Installing the Gas Transmitter
10
Commissioning
The Dräger PIR 3000 infrared gas transmitter is preconfigured and ready for use
after installation.
●Deactivate the alarm call to the central device to avoid false alarms.
●When the supply voltage is applied, the gas transmitter automatically performs a
self check (10 seconds), then automatically uses the factory-preset calibration
(see page 11) and gas category.
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 period. The gas transmitter will emit a 1 mA sig-
nal for the duration of the running-in period.
●Check signal transmission and adjust if required (see "Checking the signal trans-
mission, checking the alarm trigger and displaying the gas category" on page 17).
●Check setting of the gas category for the intended use. If required, set the gas
category (see "Changing the gas category " on page 18).
●Check the calibration of the gas warning system (see "Calibration" on page 11).
●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 issue a fault mes-
sage.
Output Signals of the Device:
Calibration
A functional check and - if necessary - a calibration must be carried out regularly for
gas warning systems (see page 20, Maintenance).
Zero gas and test gas are to be applied for functional check and calibration of the
infrared gas transmitter Dräger PIR 3000. To this end, 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.
Make sure that the calibration adapter is correctly seated. To this end, manually
tighten the calibration adapter to a point where the sealing line leaves a permanent
mark on the splash guard.
Nitrogen, synthetic air or fresh air (hydrocarbon content <50 ppm) can be used for
zero point calibration.
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
Commercially available calibration gas can be used to calibrate the respective gas
category (methane, propane, ethylene). The highest accuracy is achieved using test
gas concentrations of 40 to 70 percent of the measurement span.
The infrared gas transmitter Dräger PIR 3000 can also be used to measure other
gases than mentioned above. For detailed information, refer to "Substitute Gas Cali-
bration" on page 16.
●Select the measured gas in the corresponding table and determine the corre-
sponding gas category.
●Set the gas transmitter to the determined gas category.
Where possible, calibration gas should match with the measured gas for span cali-
bration. In exceptional cases, span calibration can be carried out using a suitable
substitute gas and the associated calibration factor. The suitable substitute gas as
well as the associated calibration factor is shown in the table "Substitute Gas Cali-
bration" on page 16.
●Select the substitute gas (gas category) and the calibration factor in table "Substi-
tute Gas Calibration" on page 16.
●Multiply the concentration of the substitute gas by the calibration factor to get the
gas concentration to be set.
Example:
Measured gas: n-octane
Gas category: Propane (see table "Substitute Gas Calibration",
page 16)
Calibration factor: 1.8 (in table "Substitute Gas Calibration", page 16)
Span gas concentration: 40 %LEL propane (bottle concentration)
Setting: 40 %LEL x 1.8 (calibration factor) = 72 %LEL
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 28) as follows:
— Automatic zerosetting.
— Manual zero calibration of the output signal. 1)
— Manual span calibration of the output signal. 1)
— Checking the signal transmission, check the alarm trigger and displaying the gas
category. 1)
— Changing the gas category. 1)
Automatic Zerosetting
●Deactivate alarm activation of the central device.
●Expose the gas transmitter to nitrogen, synthetic air, and/or fresh air via calibra-
tion 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 five seconds. After five
seconds, the output signal of the gas transmitter switches to the display of the
span gas signal (3 mA) for 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 the same
period of time as when starting the automatic zerosetting routine.
1) A second person is required as helper for these tasks.
0
S
00823812_01.eps
0

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, and/or fresh air via calibra-
tion 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 five seconds. After five
seconds, the output signal of the gas transmitter switches to the display of the
span gas signal (3 mA) for 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 moves back to
the previously displayed value. The device is now set to zero point calibration rou-
tine. Within this routine, the output signal will decrease resp. increase, depending
on whether the magnetic pin is placed on one of the areas marked with either the
" " or the " " icon.
4Adjust the zero point signal by placing the magnetic pin on one of the areas
marked with either the " " or the " " icon.
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 the same period of time as when starting the ze-
rosetting 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 meas-
ured 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
0S
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 condi-
tions:
— 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 approx. 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 moves back to
the normally displayed value. 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
0
S
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
Substitute Gas Calibration1)
The infrared gas transmitter Dräger PIR 3000 can also be used to measure other
gases and vapours. The following table shows the required information (see also
"Calibration" on page 11.
ATTENTION:
The calibration is automatically terminated and new calibration parameters are not saved if the gas concentration meas-
ured 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.
Measured gas1)
1) The measuring function for the explosion protection according to EN 61779 is proven, see EC-Type Examination certificate
BVS 06 ATEX E 143X and associated additions.
CAS-No. Measuring range1)
[%LEL]
Gas Category
Substitute Gas
Calibration
factor 2)
2) The LEL values were used according to IEC 61779-1. Other LEL values may apply for the device settings at the location of
use.
Response time
t0...50
acetone 67-64-1 0 to 100 ethylene 0.7 ≤24 s
i-butane 75-28-5 0 to 100 propane 1.6 ≤21 s
n-butane 106-97-8 0 to 100 propane 1.2 ≤23 s
ethanol 64-17-5 0 to 70 propane 0.9 ≤21 s
ethyl acetate 141-78-6 0 to 100 ethylene 0.4 ≤35 s
ethyl acetate 141-78-6 0 to 70 propane 1.3 ≤35 s
n-hexane 110-54-3 0 to 100 propane 1.8 ≤32 s
methanol 67-56-1 0 to 70 ethylene 0.2 ≤21 s
n-nonane 111-84-2 0 to 100 propane 1.9 ≤89 s
n-Octane 111-65-9 0 to 100 propane 1.8 ≤67 s
n-pentane 109-66-0 0 to 100 propane 1.2 ≤28 s
i-propyl alcohol 67-63-0 0 to 100 propane 1.3 ≤24 s
propene (propylene) 115-07-1 0 to 100 ethylene 0.4 ≤19 s
toluene 108-88-3 0 to 100 ethylene 0.5 ≤49 s
___________

17
Operational Characteristics
Checking the Signal Transmission, Checking the Alarm Trigger and Displaying
the Gas Category
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 gas category set at the gas transmitter is displayed
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, and/or fresh air via calibra-
tion 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. After five sec-
onds, the output signal of the gas transmitter changes to 3 mA (span gas signal)
and remains there for 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 the same
period of time as when starting the automatic zerosetting routine. After that, the
output signal of the gas transmitter changes to 4 mA (0% signal).
●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. After ten seconds, the output signal
of the gas transmitter changes to 16.8 mA (80% signal) and remains there for 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 information in the operating manual of the
central device pertaining to this subject.
●Remove the magnetic pin. The gas transmitter changes to an output signal which
displays the currently set gas category according to the following table:
Gas category mA Display [%LEL]
methane 7.2 20
propane 10.4 40
ethylene 13.6 60
0
S
00823812_01.eps
0
0
S
00623812_01.eps
S

Operational Characteristics
18
— 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.
Changing the gas category
The gas transmitter supports the linearized and temperature compensated display of
a wide spectrum of gases and vapours. Depending 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 checked gases and vapours is availa-
ble in the table "Substitute Gas Calibration" on page 16.
Changing the gas category is only possible under the following conditions:
— The device was less was started up less than an hour ago.
— The last zero calibration of the gas transmitter was less than an hour ago.
— The gas concentration measured by the device is below 10% LEL (expose to zero
gas if necessary).
To change the 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.
After ten seconds, the output signal of the gas transmitter changes to 16.8 mA
(80% signal) and remains there for as long as the magnetic pin is held against it.
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

19
Operational Characteristics
●Remove the magnetic pin. The gas transmitter changes to an output signal which
displays the currently set gas category according to 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
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.
Gas category mA Display [%LEL]
methane 7.2 20
propane 10.4 40
ethylene 13.6 60
S

Maintenance
20
Maintenance
Regular intervals
are to be determined for the following tasks 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 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 do not recommend maintenance intervals that are
longer 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.