Use

3-wire, 4-20mA, 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

Input Voltage   Range:

16 to 32Vdc (24Vdc nominal) for   ATEX/IECEx/AP Versions
  12 to 32Vdc (24Vdc nominal) for UL/CSA version

Max Power   Consumption:

Max 5 Watts. at 24Vdc (see section 2   regarding maximum in rush current)

Current output

4-20mA (Source or Sink)

≥0.0＜1.0mA

Fault (refer to table 5 section 12.3 for   further details).

4.0 mA to 20.0   mA

Normal gas measurement

2.0 mA or 4.0 mA   (17.4 mA)

Inhibit (during configuration/user   settings)

22.0 Ma

Maximum over range

Max load   resistance

250 Ω

Terminals

15 x screw terminals suitable for wire   diameter 0.5mm2 to 2.5mm2 (20AWG to 13AWG).

Relays

3 x 5A@250VAC. Selectable normally open   or normally closed (switch) and energized/de-energized (programmable).

Communication

RS485, Modbus RTU

Construction

Material

Epoxy painted aluminium alloy or 316   Stainless Steel

Weight

Aluminium alloy: 1.7kg, 316 Stainless   Steel: 3.7kg

Mounting

Pole or wall mounting

Entries

2 x M20 (for ATEX/IECEx/AP Approval) or   2x3/4NPT (for UL Approva

Environmental

IP Rating

IP66 in accordance with EN60529:1992

Operating   Temperature

-40ºC to +75ºC/ -40ºF to +167ºF
  Note: The detector display may become illegible at temperatures below -40°C,   but the detector continues its gas monitoring function.The display is not   damaged and recovers when the temperature rises back above -20 °C.

Operating   Humidity

Continuous 20-90%RH (non condensing),   Intermittent 10-99%RH (non condensing)

Operating   Pressure

90-110kPa (EC Toxic Sensors), 80-120kPa   (EC Oxygen, Catalytic Bead and Infrared Sensors)

Storage   Conditions (detector and accessories)

-25°C to +65°C (-13°F to +149°F)