Dew Point & Moisture
Condumax II Hydrocarbon Dew-Point Analyzer
Fully automatic, chilled-mirror hydrocarbon and water dew-point analyzer for natural gas quality.
MI
Michell Instruments Ltd.
Easidew PRO I.S. Intrinsically Safe Moisture Transmitter
Rugged intrinsically safe transmitter for demanding refinery and process gas/liquid duties.
Key Features
- Measurement range −110°C to +20°Cdp (−100°C variant)
- ATEX, IECEx, UKCA, cQPSus, TR CU Ex certified
- Accuracy ±1°Cdp (+20 to −60°C); ±2°Cdp (−60 to −110°C)
- 2-wire 4-20 mA output, user configurable over range
- Traceable 13-point calibration certificate
- 525 barg (7614 psig) pressure rating
- Configurable for gas (ppmV) or liquid (ppmW) moisture measurement
- Material certification to BS EN 10204 3.1 available
- Optional enriched-oxygen sensor cleaning
Overview
The Easidew PRO I.S. is a rugged, high-accuracy 2-wire intrinsically safe dew-point transmitter for trace-moisture measurement in demanding process and refinery applications, in either gases or non-polar hydrocarbon liquids. A wide −110°C to +20°Cdp range and global hazardous-area certification suit it to natural gas production, LNG terminals and petrochemical process liquids.
Working Principle
Michell’s ceramic metal-oxide moisture sensor is housed in a robust 316 stainless-steel body with screw-terminal wiring via M20 gland. For gas duty the transmitter scales dew point to ppmV using a programmed fixed pressure input; for liquid duty (Easidew PRO LQ I.S.) it applies a 6-point saturation-constant look-up table for the specific hydrocarbon to compute ppmW moisture content.
Applications
Benefits
- Single transmitter platform covers both gas and non-polar liquid moisture duty
- High-volume manufacturing gives OEMs and integrators consistent lead times
- Factory-programmed saturation constants for 10 common liquids simplify commissioning
- Robust housing and 525 barg rating suit demanding refinery environments
Technical Specifications
| Measurement Range | −110 to +20°C dp (−100 to +20°C dp variant); liquids: 0–1000 ppmW |
|---|---|
| Accuracy | ±1°C dp (+20 to −60°C); ±2°C dp (−60 to −110°C) |
| Response Time | 5 min to T95 (dry to wet) |
| Repeatability | 0.5°C dp |
| Calibration | Traceable 13-point certificate |
| Output | 4-20 mA, 2-wire, user configurable over range |
|---|---|
| Scaled Range (Gas) | Dew point: −110 to +20°C; Moisture: 0–3000 ppmV |
| Scaled Range (Liquid) | 0–1000 ppmW, factory configured per application |
| Supply Voltage | 12–28 Vdc |
| Load Resistance | Max 250Ω @12V (500Ω @24V) |
| Current Consumption | 23 mA max |
| Operating Temp | −40°C to +60°C |
|---|---|
| Compensated Range | −20°C to +50°C |
| Operating Pressure | 52.5 MPa (525 barg) max |
| Flow Rate | 1–5 Nl/min (sample block); 0–10 m/s direct insertion (gas); 0.1–0.3 L/min or 0.1–1 m/s (liquid) |
| Housing | 316 stainless steel |
|---|---|
| Ingress Protection | IP66 (NEMA 4) |
| Process Connection | 5/8" – 18 UNF with bonded seal; G1/2" or 3/4" UNF adaptors |
| Electrical Connection | Screw terminal via M20 x 1.5mm gland |
| Weight | 1.27 kg |
| ATEX / UKCA | II 1 G Ex ia IIC T4 Ga (−20 to +70°C) |
|---|---|
| IECEx | Ex ia IIC T4 Ga (−20 to +70°C) |
| North America | cQPSus Class I Div.1 Groups A-D T4; Class I Zone 0 AEx/Ex ia IIC T4 Ga |
| Canadian Pressure Vessel | CRN, 138 barg max |
Downloads
Datasheet (PDF)PDF
Frequently Asked Questions
What warranty is offered on this product?
All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.
Do you provide installation and commissioning?
Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.
Are spares and calibration available locally?
Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.
How long is the typical lead time?
Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.
Request a Quote — Easidew PRO I.S. Intrinsically Safe Moisture Transmitter
Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.
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