Dräger PIR 7000 Technical Handbook

70
Technical Data
Technical Data
Functional principle Double-compensated infrared absorption,
non-imaging optics, 4-beam technology.
Measuring ranges:
Dräger PIR 7000 0 to 100 %LEL, other measuring ranges and
measurement units configurable.
Dräger PIR 7200 0 to 10 % vol. carbon dioxide (CO
2
), other
measuring ranges and measurement units
configurable.
Standard measured gases:
Dräger PIR 7000 Type 334 Methane, propane, ethylene selectable.
Other gases and vapours on request.
Dräger PIR 7000 Type 340 Propane, methane selectable.
Other gases and vapours on request.
Dräger PIR 7200 Carbon dioxide
SIL level 2
Signal transmission to central device
Analogue:
– Measured-value signal 4 mA to 20 mA
– Deviation below zero point 3.8 mA to 4 mA
– Full-scale deflection exceeded 20 mA to 20.5 mA
– Fault signal <1.2 mA (configurable between 0.7 and 3.6 mA).
– Maintenance signal 3 mA (configurable between 0.7 and 3.6 mA).
Options to be activated:
– Warning signal Fault signal every 10 seconds for 0.7 seconds,
measured-value signal in between.
– Beam block warning 2 mA for measured value <15 %LEL, otherwise
measured-value signal (configurable between 0.7
and 3.6 mA).
Digital: HART
®
interface (semi-duplex).

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