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SENSEPOINT RFD OPERATING MANUAL
13 General specifications
Sensepoint RFD Transmitter
3-wire, 4-20mA, flammable gas transmitter for use with remotely or directly fitted flammable gas
Use
sensors. For the protection of personnel and plant from flammable gas hazards. IR Handheld
Remote Interface for one-man non intrusive operation.
Electrical
Input Voltage Range:
Max Power Consumption:
Current output
≥0.0<4.0 mA
4.0 mA to 20.0 mA
2.0 mA or 4.0 mA
22.0 mA
Terminals
Relays
Construction
Powder coated aluminum (ADC12)
Material
1400g
Weight
Pole or wall mounting bracket supplied
Mounting
2 x ¾" NPT entries with M20 adaptors (1 sensor entry, 1x customer input/outputs)
Entries
Certification
US:
UL Class I, Division 1, Groups B, C & D, T
European:
ATEX Ex II 2 G EExd IIC T4 T
EMC:
EN 50270
Environmental
IP65 in accordance with EN60529:1992
IP Rating
-25ºC to +55ºC / -13ºF to +131ºF.
Operating
Temperature
Note: The detector display may become illegible at temperatures above +55°C, but the detector
continues its gas monitoring function. The display is not damaged and recovers when the
temperature falls back below +55°C. Performance is not guaranteed outside of stated operating
temperature range.
Continuous 20-90% RH (non condensing), Intermittent 10-99% RH (non condensing)
Operating
Humidity
90-110kPa
Operating
Pressure
-25°C to +55°C (-13°F to 131°F)
Storage
Conditions
For specification of compatible sensors refer to their individual manuals.
RFDMAN MAN0843 Issue 3
12-30Vdc
300mA (see section 2 regarding maximum in rush current)
4-20mA (source)
Fault (refer to table 5 section 8.2 for further details).
Normal gas measurement
Inhibit (during configuration/user settings)
Maximum over range
7 x screw terminals suitable for wire diameter 0.5mm
(20 AWG to 14 AWG). For remote sensor wiring use 1mm
(17 AWG) wire.
2 x 1A @ 24VDC. Selectable normally open or normally closed
(switch) and energized/de-energized (programmable).
. -25ºC to +55ºC / -13ºF to +131ºF
amb
. -40ºC to + 65ºC / -40ºF to 149ºF
amb
31
2
2
to 2.5mm
2
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