Dräger PIR 7000 Technical Handbook

35
Accessories
Bump Test Adapter PIR 7000 / 7200
(Part no. 68 11 630 / 68 11 930)
Intended use:
— The bump test adapter is designed for testing the function of the gas transmitter (with
splash guard) with a gas/air mixture in concentrations below the lower explosive limit (test
gas).
— The remote test adapter is not suitable for calibration purposes because lower
concentrations may be set in comparison to those of the test gas in the measuring cuvette
of the gas transmitter due to dilution effects (convection current, wind).
The gas transmitter features two status lights and provides the following information:
— Continuous green for indicating operational readiness
— Continuous yellow for displaying a fault
— Flashing green/yellow for status messages during the calibration procedure.
These light signals are arranged on two opposing sides of the bump test adapter.
Notices on operation
— In order to minimise the effect of wind during function test, gassing of the gas transmitter
via the bump test adapter should be done with no less than 10 litres of test gas per minute.
Suitable pressure reducers should be used for this purpose.
— Operation with a bump test adapter does not influence the performance characteristics
and the approvals of the gas transmitter.
NOTICE
The positioning of the light signals in relation to the upper side/underside of the gas
transmitter may change dependent on how the gas transmitter is mounted. Basically, the
colour assignment (yellow/green) is decisive, not the position of the light signals on the
status display.
Dräger Safety recommends that the labels (Power/Fault) are affixed in a such a way that the
outlet areas of the light signals are identified unambiguously.
Mounting:
For gas transmitters with splash guard and
status indicator:
● Remove splash guard together with
status indicator.
Always required:
● Clean sealing surfaces on the gas
transmitter, if required. Always allow the
sealing surfaces and the base of the
measuring cuvette to dry completely.
● Fasten remote test adapter to gas
transmitter using the two screws –
the hose connections (two hose
connectors dia. 6.5 mm) should point
downwards.
● Fit splash guard to bump test adapter.
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Dräger PIR 7000 Specifications

General

Detection Principle	Infrared (IR)
Pressure Range	700 to 1300 hPa
Ingress Protection	IP66/67
Gases Detected	Hydrocarbons
Measurement Range	0 - 100 %LEL (Lower Explosive Limit) or 0 - 100 vol.%
Operating Temperature	-40 to +65 °C
Output Signal	4-20 mA
Housing Material	Stainless steel
Certifications	ATEX, IECEx, UL, CSA
Response Time	t90 ≤ 4 s