B28050-410-000-RC (MANUAL FOR XD-I).doc
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QTS-1710 TRANSMITTER/SENSOR
1. GENERAL SPECIFICATIONS
Power Supply 24 VDC
(12 to 30 VDC)
125 mA Max
80 mA typical
Signal
4 - 20 mA Linear
0 - 100% LEL
Wiring 3 wires: Power (+)
Signal
Common (-)
Max. Signal Load (Burden resistance)
700 Ohms at 24 VDC
500 Ohms at 20 VDC
200 Ohms at 12 VDC
Hazardous Locations Enclosures:
Expl. Proof: CL1. Div 1, Gr. A, B, C, D
CSA, FM, ATEX Approval
Temperature
-40 C to +50 C (-40 F to +122 F)
Humidity
0 - 99 % RH (Non- Condensing)
Calibration recommendation: every 90 days max.
* Please allow 24 hours warm-up time period before calibrating
2. INSTALLATION
Sensor orientation should be pointing downwards.
Mounting height is dependent upon whether a gas is heavier or lighter than air: Methane (natural gas),
Hydrogen and Ammonia are lighter than air, sensors should be placed close to the ceiling. Most other
combustible gases are heavier than air and the sensor should be placed close to the floor.
Take note of any barriers, which may cause the gas to collect. Note likely sources of gas and place the
sensors near them.
Figure 1 Connection and Adjustments
