Product Description
Fast, high-precision moisture measurements for hazardous areas.
The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a wide variety of process applications where keeping moisture levels as low as possible is of critical importance.
Product Features
- Fast and reliable measurement from 0.1 to 2000ppmV
- Accuracy of ±0.1ppmv at <1ppmv and 10% of reading from 1 to 2000ppmv
- Maintenance-free for 3 years
- Built-in verification of customer process gas
- IECEx, ATEX, TC-TR Ex certified for Exd flameproof, CSAus certified for explosion proof
- Intuitive, color HMI with touch-screen keypad; no ‘hot work’ permit required
- 14 internal alarms
- 21 predefined carrier gases and 3 user-defined gases
- Proven Michell Instruments quality: 40 years of expertise in moisture measurement built into the design
Technical Specification
| Measuring technology | Fast Response Quartz Crystal Microbalance |
| Calibrated range | 0.1 to 700ppmv |
| Measurement range | 0.1 to 2000ppmv |
| Accuracy | ±10% of reading from 1 to 2000ppmv ±0.1ppmv between 0.1 & 1ppmv |
| Repeatability | ±5% of the reading from 1 to 2000ppmv ±0.1ppmv between 0.1 & 1ppmv |
| Limit of detection | 0.1ppmv |
| Available units | ppmv, ppmw, mg/Nm3, vapor pressure (Pa), dew point (°C/°F), lb/MMscf |
| Response speed | T63 <2 mins to step change in either direction T95 <5 mins to step change in either direction |
| Self verification | Internal moisture generator source calibrated traceable to NPL & NIST |
| Sensitivity | 0.1ppmv or 1% of reading, whichever is greater |
| Electrical Specifications | |
| Supply voltage | 85 to 264 V AC, 47/63Hz or 24 V DC (ATEX / IECEx) 24 V DC only (CSAus) |
| Alarms | Indoor system: 80W Outdoor system: 180W |
| Analog signals | 1 x system alarm, volt-free change-over (FORM C) 3 x process alarms, selectable for various parameters, volt free changeover (FORM C) |
| Communications | RS485 ModBus RTU Modbus TCP 2 x 4–20 mA or 1–5 V (selectable) Maximum load resistance 500 Ω for 4–20 mA and minimum load of 1M Ω for 1–5 V |
| Data logging | Logs at 1 to 10 min intervals for a 24hr period |
| Local interface | 7” color LCD with touch-screen keypad |
| Electrical connections | M20 entries for cable glands |
| Operating Conditions | |
| Inlet pressure | 3 barg |
| Outlet pressure | 2 barg |
| Sample flow | 300ml/min total flow |
| Sample gas temperature | 0 to +100°C |
| Operating environment | Analyzer only+5 to +45°C up to 90% RH Analyzer in sampling system–20 to +55°C up to 95% RH (fitted with heater/thermostat and/or enclosure cooling as appropriate to maintain +5 to +45°C internal temperature) |
| Mechanical Specifications | |
| Type | GUB Flameproof Exd |
| Enclosure | Lid & body: Cast copper-free aluminum LM25 (EN AC-42000), less than 0.6 magnesium Glass window: Heat resistant, explosion proof, polyester coated, IP66, NEMA 4 |
| Gas connections | 1/4” NPT(F) |
| Weight | 35kg without sampling system |
| Sample system enclosure | 316L stainless steel |
| Certifications | |
| Hazardous area certification | ATEX II 2 GD Ex d IIB+H2 T6 Gb, Ex tb IIIC T85°C Db, Tamb -40°C to +60°C IECEx Ex d IIB+H2 T6 Gb, Ex tb IIIC T85°C Db, Tamb -40°C to +60°C CSAc Class I, ZONES, Ex d IIB+H2 T6 Gb, Tamb -20°C to +55°C CSAus Class I, Div 1, Group BCD T6, Tamb -25°C to +55°C TC-TR 1Ex d IIB+H2 T4 Gb X, 1Ex tb IIIC 130°C Db X and 1Ex d IIB+H2 T3 Gb X, 1Ex tb IIIC 195°C Db X |
Any Question at
+92 51 4862395
Office # 06, Rose-1 Plaza
I-8 Markaz, Islamabad
Mon-Sat
9 am – 5 pm
Send your mail at
info@tetracon.com.pk