PT-MON Explosion proof moisture analyzer
A complete explosion proof moisture analyzer for critical gas process applications
Promet EExd Process Moisture Analyzers are hazardous-area rated industrial hygrometer systems for measurement of water vapor content in low and high pressure process gases on natural gas platforms and terminals as well as in petrochemical plants and industrial manufacturing facilities. The Promet EExd is installed directly in the hazardous area, simplifying site installation and retrofits. Promet EExd combines the latest Michell moisture sensing technologies with sample conditioning systems designed to provide a reliable and easy-to-operate, multi-channel, on-line instrument for moisture measurement in flammable gases.
• EExd flameproof certified - IECEx, ATEX, CCSAUS and TC TR Ex
• Complete hazardous area installation
• Single- or dual-channel measurement
• Moisture content, dew point and pressure
• Calibration traceable to NPL (UK) and NIST (USA)
• Remote global access options
• Sour gas compatible
• Field calibration maintenance
• Range -120 to +30°Cdp, 0.001 to 30,000 ppmV
| Channel Confiurations | Single and two channel |
| Moisture Parameters | Dew point °C and °F |
| Moisture Content | Automatic pressure compensated conversions: ppmV for natural gas and ideal gas, lbs/MMscf and mg/m3 for natural gas. Dew point at a pressure input by the user for natural gas and ideal gas. Calculations for natural gas moisture content based on either IS0 18453 or IGT#8 to customer order preference |
| Analysis Pressure | barg, MPa and psig |
| Sensor Technology | Michell Ceramic Moistures Sensor |
| Measuring Range | -120°Cdp to +30°Cdp 1 ppbV to 30,000 ppmV 0 to 250 barg |
| Calibration Range | -100°Cdp to +20°Cdp 10 ppbV to 23,000 ppmV |
| Accuracy | Dew point: ±1°C between -59.9 & +20°Cdp Moisture content: ±10% of reading Dew point: ±2°C between -60 & -100°Cdp Moisture content: ±20% of reading Analysis Pressure: ±0.25% FS |
| Measured Resolution | 0.1°C: -80 to +20°Cdp 1°C: -100 to -80°Cdp |
| Display Resolution | Dew point: 0.1°C Moisture content: autoscale, 5 digits MPa and barg: 0.1, psig: 1.0 |
| Resolution | 0.1°C between +20 and -80°Cdp 1°C between -80 and -100°Cdp |
| Temperature Coefficient | Algorithm compensation (-20 to +50°C) |
| HMI; Keyboard Interface | Capacitive touch-screen through glass |
| Display | Vacuum florescent |
| Data Loggings | A rolling maximum of 150 data logs is available Each log records time, date, moisture and pressure values for each channel 5 minutes minimum and 60 minutes maximum logging intervals can be set by the user |
| Communications and Output | Two non-isolated 4-20 mA per measurement channel. 500 Ω maximum load. Range and parameter settable by user. Modbus RTU @ 9600 baud-rate Alarms: two volt free contacts per channel; one process value and one instrument status Also available via Modbus communications |
| Main Unit Enclosure | Internal temperature control for condensation protection and stable analysis conditions |
| Type | Flameproof EExd |
| Construction | Cast copper-free aluminium |
| Finish | Chromate primer, Polyester P9010 powder coated (black). Meets BS3900 |
| Operating Pressure | Max 138 barg (2000 psig) |
| Sample Connections | 1/8” NPT (ATEX / IECEx) or 1/4” NPT (CSA)(female) |
| Sample Flow Rate | 0.5 to 5 I/min |
| Sample Flow Alarm | Optional |
| Power Supply | 90 to 260 V AC, 50/60 Hz, 180 W Main Unit |
| Operating Environment | Indoor/Outdoor -20°C to +60°C Max 95% RH Shaded location |
| Certification | |
| Hazardous Area Certification | ATEX: II 2G Ex d IIB + H2 Gb T5 (-40°C to +44°C) T4 (-40°C to +60°C) IECEx: Ex d IIB + H2 Gb T5 (-40°C to +44°C) T4 (-40°C to +60°C) cSAus: Class I, Division 1, Group B, C, D, T4 Tamb -40°C to +60°C *TC TR: Ex 1Ex d IIB + H2 T4, T3 Gb (-40°C to +60°C) |
| Pattern Approval | GOST-R, GOST-K |
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