PN 903-8797, Rev A
Specications
These performance characteristics are based on operation with factory-set
conguration parameters.
Specication Description
Standard Ranges For application of sweet (H
2
S <50 PPM) natural gas. The
composition of the gas must be above the upper explosive limit.
Methodology Chilled-mirror technique.
Speed of Response 2 °C per minute (typical cooling rate), with cycle time typically
20–30 minutes.
Actual response time will vary based on process conditions, the
cooling rate, pressure, and the temperature of the last dewpoint.
Accuracy Hydrocarbon Dewpoint temperature:
±1 °C (±2 °F) with laboratory-grade propane.
Accuracy is determined by using pure propane and comparing the
measured results with that from published vapor pressure data for
propane.
Repeatability ±0.4 °C (±0.7 °F)
Sensitivity ±0.1 °C (±0.2 °F)
This is for the stability of temperature measurement only.
Maximum Water
Content
500 mg/m
3
(equivalent to a +5 °C water dewpoint at 200 PSIG)
Customer Connections Analog Outputs
4 isolated 4–20 mADC self-powered (standard) or loop powered
(optional).
Self-Powered: Congured as a 2-wire transmitter,
compatible with a loop impedance of
0–1000 ohms.
Loop-Powered: 1500 Vrms isolated analog output
congured as a 2-wire transmitter. An
external power supply (15–30 VDC) capable
of supplying 25 mA per loop is required
(supplied by customer). When 30 VDC is
supplied, the maximum loop impedance is
1000 ohms.
6 independent sets of SPDT Form C, dry (potential free) relay
contacts, 24 VDC, 0.5 A maximum
Digital Communication
Local Service Port: RS-232
Remote Service Port: RS-422/RS-485 (2-wire or 4-wire) using the
optional serial communications, Modicon
Modbus® protocol, or using the optional
System 200 Congurator Software installed
on a laptop computer.
Specications | 5-1
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