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MAN0889_Issue 3_03/13
6.1 System
Available Gases
Range
Minimum Low
Alarm Setting
Maximum High
Alarm Setting
Path Length
Speed of Response
Output signal
Operating Temp.
Humidity
Pressure
Repeatability
Temperature
Drift (-40°C to+65°C)
Warm-up Time
Power Supply
Power Consumption
Enclosure Material
Weight
Vibration
Divergence/
Misalignment
Tolerance
IP rating
6.2
Response to other gases
Searchline Excel Cross-Duct is a methane gas detector. It should only be used to detect gas mixtures where methane
is the main constituent (>70%) and the balance is C
6. Specifications
Methane
0 - 100%LEL
UL version - LEL level 5%v/v
ATEX, IECEx version – LEL level 4.4%v/v
20%LEL (0.5 – 2.0m)
10%LEL (2.0 - 5.0m)
40%LEL (0.5 – 2.0m)
30%LEL (2.0 – 5.0m)
Short Range 0.5 - 2.5m
Long Range 2.5 - 5.0m
T90 less than 1 second
4 — 20mA
0mA
Normal operation
Fault
(0 —100%LEL)
The Searchline Excel Cross-Duct operating temperature range is -40 °C to 50 °C (-40 °F to 122 °F).
An internal duct temperature of up to 60 °C (140 °F) is acceptable, provided the ambient temperature
outside the duct at the Transmitter and Receiver unit is within the operating range.
0 — 99%RH Non-condensing
91.5kPa — 105.5kPa (915 — 1055mBar, non-compensated)
±10%LEL (<1metre duct width)
±2.5%LEL (1 - 5metre duct width)
±10%LEL @ zero
±15%LEL @60%LEL
Less than 5 minutes (operational), Less than 1 hour (fully stabilised)
Receiver and Transmitter: 18 to 32V, Heated Reflector Panel: 18 to 28V
Tx/Rx total: 13W maximum
316 Stainless Steel
Tx/Rx including mounting plate 13kg
Reflector panel
5kg (short range)
10kg (long range)
2 — 60Hz, maximum peak to peak amplitude 1mm.
Tx/Rx ±1.5° Reflector Panel ±5° (at 5m)
IP66 and 67
Searchline Excel Cross-Duct Technical Handbook
2mA
Inhibit
Reflector: supply voltage dependent
- C
hydrocarbons.
2
6
42
2.5mA
3mA
Beam block
Low signal
Configurable
Configurable
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