Available Gases

Methane, Ethane, Propane,   Butane, Pentane, Ethylene, Propylene, Butadiene

Range

0 to 5 LEL.m

Recommended Alarm Settings

(Low) 1.0 LEL.m; (high) 3.0 LEL.m

Path Lengths

Short Range 5m to 40m (15ft to 130ft.),   Medium Range 40m to 120m (130ft to 390ft.) and Long Range 120m to 200m (390ft   to 650ft.)

Speed of Response

T90 less than 3 seconds. (under normal   operating conditions)

Output Signal

4-20mA (maximum loop resistance 600 ohms;   source & sink available) and RS485

21mA Over range

4-20mA Normal operation (0 to 5 LEL.m)

3mA(1) Dirty optics

2.5mA(1) Beam blocked

2mA(1) 0mA Fault

Digital Output

Modbus RS485 multi drop. Using DX100 (M)   or XNX Universal Transmitter with Modbus option

Operating Temperature

-40°C to +65°C (-40°F to 150°F)

Operating Humidity

0 to 99% RH (non-condensing)

Operating Pressure

91.5 to 105.5 KPa (915 to 1055 mbar)   (non-compensated)

Warm-up Time

Less than 5 minutes (operational), or   less than 1 hour (fully stabilised)

Power Supply

18V to 32VDC

Power Consumption

Short Range Tx: 3.5W / 5.0W *maximum.   Medium and Long Range Tx: 10W / 13W* maximum. Rx: 8W maximum.

Enclosure Material

316 stainless steel

Weight (inc. mounting bracket)

Short Range TX: 3.5kg Medium and Long   Range TX: 7kg RX: 3.5kg

Vibration

2 to 60Hz, max ptp amplitude 1mm.

Misalignment Tolerance

Short Range ±0.5º (±~35cm at 40m). Medium   Range ±0.5º (±~104cm at 120m). Long Range ±0.5º (±~170cm at 200m)

EMC Standards

EN50270

Performance Approval

FM performance approved

Safety Approval

ATEX

Transmitter:

II 2 G Ex d op is IIC T5 (Tamb -40°C to   +65°C) Gb

II 2 G Ex d op is IIC T6 (Tamb -40°C to   +40°C) Gb

Receiver:

II 2 G Ex d IIC T5 (Tamb -40°C to +65°C)   Gb

II 2 G Ex d IIC T6 (Tamb -40°C to +40°C)   Gb

IECEx

Transmitter:

Ex d op is IIC T5 (Tamb =-40°C to +65°C)   Gb

Ex d op is IIC T6 (Tamb =-40°C to +40°C)   Gb

Receiver:

Ex d IIC T5 (Tamb -40°C to +65°C) Gb

Ex d IIC T6 (Tamb -40°C to +40°C) Gb

UL: Class 1 Groups B, C, D and Class 1   Zone 1 AEx d IIB + Hydrogen (Amb -40°C to +65°C)

CSA: Class 1 Div 1 groups B, C, D, T5 and   Exd IIC T5 (Amb -40°C to +65°C)

FM: Class 1 Div 1 groups B, C, D & T5   (Tamb -40 to +65°C)

Other: GOST

Independently assessed to IEC61508

IP Rating

IP66 and IP67

(1) User programmable.

* Turboheating activated (standard   feature; user selectable). This is recommended for the most severe weather   conditions.