|  MDM300 |  MDM300 Intrinsically Safe |
Performance |
Measurement Technology | Michell ceramic metal-oxide moisture sensor |
Accuracy | ±1 °C (±1.8 °F) from -60 to +20 °C (-76...+68 °F) dew point ±0.2 °C (±0.36 °F) temperature |
Calibrated Range | Spot Checks: -70...+20 °C (-94...+68 °F) dew point Online Analysis: -100...-70 °C (-148...-94 °F) dew point |
Uncalibrated Readings From | +20...+30°C (+68...+86°F) dew point |
Measurement Units | °C, °F, K dew point & gas temperature ppmV, ppmW for air, N2, CO2, SF6 %rh, g/m3, g/kg
| °C, °F, K dew point & gas temperature ppmw & g/kg for air, N2, H2, CO2, SF6 ppmv, lb/MMscf & g/m3 for natural gas ppmv, g/m3 & %rh |
Resolution (Display) | 0.1 for all dew-point derived units and autoranging where appropriate |
Resolution (Measurement) | Better than 0.1°C (0.18°F) dew point |
Typical Response Speed | T95 in ≤15 minutes to -60°C (-76°F) dew point | T95 in ≤30 minutes to -60°C (-76°F) dew point |
Electrical Input/Output |
Battery Type | NiMH 4.8V |
Battery Operating Life | Up to 48 hours of typical usage between charges | Up to 24 hours of typical usage between charges |
Battery Charger | Intelligent charger (supplied) | Intelligent charger (not certified for hazardous area use) |
Operating Conditions |
Operating Pressure | 35 MPa (350 barg / 5076 psig) max |
Operating Environment | Outdoors 0...+100% rh condensing |
Operating Temperature | -20...+50 °C (-4...+122 °F) |
Storage/Transport Temperature | -20...+50 °C (-4...+122 °F) |
Mechanical Specification |
Display | Blue LCD graphical display |
Enclosure Type | Steel fiber-loaded high-impact polyamide 6 |
IP/NEMA Rating | IP66/NEMA 4 |
Gas Connections | 1/8” NPT female (other options available) |
Flow Across Sensor | 0.2...1.2 Nl/min | 0.2...0.5 Nl/min |
Gas Wetted Materials | AISI 316L stainless steel | AISI 316L stainless steel, PTFE Seal, Borosilicate glass, ceramic |
Outline Dimensions | 218 x 170 x 90 mm (8.58” x 6.69” x 3.54”) (d x w x h) |
Weight | 1.35 kg (2.98 lb) | 1.5 kg (3.31 lb) |
General |
Data Logging | 8 megabytes; Log interval: 5...60 sec; Logs per log file: Up to 10,000 |
Communications | (Wireless) BluetoothTM range up to 5 m (version 2.0) |
User Interface Languages | English, French, German, Italian, Portuguese, Spanish |
Certification Codes |
| CE UKCA | ATEX/UKCA: II 1G Ex ia IIC T4 Ga (-20 °C...+50 °C) IECEx: Ex ia IIC T4 Ga (-20 °C...+50 °C) TR CU Ex: 0Ex ia IIC T4 Ga cQPSus: Class I, Division 1, Groups A B C D, T4 Class I, Zone 0, AEx/Ex ia IIC Ga T4 (-20 °C...+50 °C)
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