Transmet I.S.
Complete Dew Point Solutions for IS Areas
Transmet I.S. is an easy to install, self-contained dew point transmitter for the measurement of the dew point of gases, and has been specifically designed for use within hazardous areas. Housed in a stainless steel case, Transmet I.S. offers ingress protection to NEMA 4X. With a wide operating range from -150 to +70°F dew point and accuracy of up to 1.8°F dew point it is the most complete dew-point transmitter available. Transmet I.S. has a fast response speed that gives the user a continuous measurement in real time. No configuration or calibration is necessary - Transmet I.S. is delivered configured and calibrated, ready for installation and operation.
Product Features
- FM, CSA & ATEX certified
- Best accuracy ±1.8ºF dew point
- Wide measurement range, calibrated over -150 to +70ºF dew point
- Linear analog output
- Fast response
- Rated to 4000 psig
- Rugged NEMA 4X enclosure
Technical Specification
| Measurement Range | -150 to +70°F dew point |
|---|---|
| Accuracy | ±1.8°F from +70 to -75°F dew point; ±3.6°F from -75 to -150°F dew point |
| Resolution | 0.18°F from +70 to -110°F dew point; 1.8°F from -150 to -110°F dew point |
| Outputs | |
| Current Sink | Linear analog 0-20 or 4-20 mA isolated selectable corresponding to °F dew point |
| Process Connection | 5/8” UNF parallel thread |
| Enclosure | Stainless steel |
| Enclosure Rating | NEMA 4X |
| Operating Temperature | -5 to +140°F |
| Storage Temperature | -40 to +160°F |
| Operating Pressure | From vacuum to 4000 psig (max) |
| Flow Rate | 0-20 CFH at atmospheric pressure |
| Gas Velocity | 0-30 FPS (max) at atmospheric pressure |
| Sensor Calibration | Traceable to NIST |
| Power Requirement | 10 to 28 VDC regulated or unregulated supply. Reverse polarity protected |
| Barrier Options | Option 1: shunt diode barrier (I.S. ground is required). Option 2: galvanic isolation barrier (no ground required) |
| Options | Sensor sampling block (see drawing at right), display unit (Cermet II I.S.), power supply module. Sample systems are also available to match your process conditions |
Hazardous Area Approvals
TRANSMET I.S. is certified intrinsically safe for use in Hazardous areas, by E.E.C.S. (BASEEFA) and covered by Supplementary EC-Type examination certificate BAS01ATEX1240X/1. The instrument conforms to the ATEX standards specified in EN 50014:1997 + amendments 1 & 2, EN 50020:1994 and EN 50284:1999, with certification code EEx ia IIC T4 (-20 °C<Ta<60 °C). The instrument conforms to the CSA North American Standards C22.2 No. 142-M1987, C22.2 No. 30-M1986, UL508, UL1203 for safe use within hazardous locations and has been assessed so by CSA International. Class 1, Division 1, Groups A, B, C & D T4 certificate 1248727 (LR 114519). The instrument conforms to the FM North American Standards Class 3600, 3610, 3810, for use in hazardous locations and has been assessed so by FM. Class I, Division 1, Groups A, B, C & D T4 J.I. 3000862.
