General Specification - Prosense PQ Series Installation And User Manual

General specification

Use:
3-wire, 4-20mA or 4-wire RS485, gas detector transmitter for use with directly installed
flammable and toxic gas sensors. For the protection of personnel and plant from flammable
and toxic gas hazards.
Electrical Specifications:
Input Voltage Range
Max Power Consumption
Current output
1.0 - 3.0 mA (adjustable)
2.0 - 3.0 mA (adjustable)
1.0 - 3.0 mA (adjustable)
4.0 mA to 20.0 mA
21.0 - 22.0 mA (adjustable)
Terminals
Relays
Communication
Detector Body Specifications:
Material
Weight
Mounting
Entries
* Enrty specks may vary depenting of the body type, please check Table-1
Environmental:
IP Rating
Operating Temperature
Operating Humidity
Operating Pressure
Storage Conditions
PRS-UM-PQ-EN-Rev.05-18.06.2020
12 to 24VDC (24VDC nominal)
Max 4 Watts. at 24VDC
4-20mA
Fault
Inhibit (during configuration/warming)
Calibration mode
Normal gas measurement
Maximum over range
3 x screw terminals suitable for wire diameter 0.5 mm² to 2.5 mm²
(20AWG to 13AWG).
2 x screw terminals suitable for wire diameter 0.5 mm² to 2.5 mm²
(20AWG to 13AWG) for RS485 digital output
3 x (1A 30VDC, 0.5A 125VAC, 0.3A 80VDC). Selectable normally open or
normally closed (switch) and de-energized.
RS485, Modbus RTU
Table 13: Electrical specifications
Epoxy painted aluminium alloy junction box, 316 - Stainless Steel Sensor Head
Aluminium Alloy : 2.1kg - PQD (with Sensor Head)
1.85kg - PQN (with Sensor Head)
Wall mounting
3 x ½ NPT field cable entries, ¾ NPT sensor entry *
Table 14: Detector body specifications
IP65 in accordance with EN60529:1992
-40ºC to +70ºC / -40ºF to +158ºF – For explosion protection
-20ºC to +60ºC / -04ºF to +140ºF – For performance
Continuous 20-90%RH (non condensing)
80-120kPa
-30°C to +70°C (-22°F to +158°F)
Table 15: Environmental specifications
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