MDM300-IS Intrinsically Safe Hygrometer
High-speed readings at less than 30 minutes & down to -60°C dew point, portable & good for tough industrial environments
A high-speed portable dew-point hygrometer for rapid spot-check measurements of dew point or moisture content in compressed air, natural gas, high voltage switchgear quench gas and many other applications. The sensor responds quickly to changes in moisture whether from dry to wet or wet to dry. This means there is no need to wait between measurements, allowing operators to make more measurements in a day.
The general purpose MDM300 is suitable for safe area use, while the intrinsically safe MDM300 I.S. has global hazardous area approval from ATEX, UKCA, IECEx, cQPSus and EAC Ex and is able to measure moisture in flammable gases such as natural gas or bio-gas.
It has a hard-wearing, ergonomic case and an easy-to-use interface for comfortable and practical operation in the toughest industrial environments.
• Repeatedly fast measurements at low pressure from less than 15 minutes for T95 to -60°C
• Higher pressure measurements possible – up to 350 barg
• Long battery life: up to 48 hours of typical use between charges
• Intuitive application kits allow quick and straightforward connection to your sample point
• Durable, yet easy to handle and operate: designed for use in industrial environments
• Lightweight: less than 1.5kg
• 13 point traceable calibration certificate
| Performance | |
| Measurement Technology | Michell ceramic 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 to +20°C dew point Online Analysis: -100 to -70°C dew point |
| Uncalibrated Readings From | +20 to +30°C dew point |
| Measurement Units | °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 dew point |
| Typical Response Speed | T95 in ≤30 minutes to -60°C dew point |
| Electrical Input/Output | |
| Battery Type | NiMH 4.8V |
| Battery Operating Life | Up to 24 hours of typical usage between charges |
| Battery Charger | Intelligent charger (charger not certified for hazardous area use) |
| Operating Conditions | |
| Operating Pressure | 350 barg max |
| Operating Environment | Outdoors 0 to +100% RH condensing |
| Operating Temperature | -20 to +50°C |
| Storage/Transport Temperature | -20 to +50°C |
| Mechanical Specifications | |
| Display | Blue LCD graphical display |
| Enclosure Type | Steel fibre-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 to 0.5 Nl/min |
| Gas Wetted Materials | AISI 316L stainless steel, PTFE Seal, Borosilicate glass, ceramic |
| Outline Dimensions | 218 x 170 x 90mm (d x w x h) |
| Weight | 1.5kg |
| General | |
| Data Logging | 8 megabytes; Log interval: 5 to 60 sec; Logs per log file: Up to 10,000 |
| Communications | (Wireless) BluetoothTM range up to 5m (version 2.0) |
| User Interface Languages | English, French, German, Italian, Portuguese, Spanish |
| Certification Codes | ATEX: II 1G Ex ia IIC T4 Ga (-20°C to +50°C) IECEx: Ex ia IIC T4 Ga (-20°C to +50°C) INMETRO: Ex ia IIC T4 Ga (-20°C to +50°C) TC TR Ex: 0Ex ia IIC T4 Ga FM: Class I, Division 1, Groups A B C D, T4 CSA: Class I, Division 1, Groups A B C D, T4 |
• Dew point in natural gas processing and pipelines
• Monitoring of desiccant dryers for compressed air or plastic moulding equipment
• Moisture measurement in high-voltage switchgear quench gas
• Moisture measurement in petrochemical refineries
• Industrial gas production and transportation
• Medical gas quality
• Dew-point measurement in metallurgical applications
Item
Description
Availability
Price
"MDM300 Series Easi-fit sampling kit for measurement at system pressure Single metering valve on hygrometer outlet & flowmeter
Normally ships in 3-4 Weeks
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"MDM300 Series Easi-fit sampling kit for measurement at atmopsheric pressure Single metering valve on hygrometer inlet & flowmeter on outlet"
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MDM300 Series Easi-fit sampling kit with 1/4" fitting and filter
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Kit includes high pressure metering valve, flow meter 1/8" stainless steel sample tubing, camozzi silencer.
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Connector for remote pressure or temperature sensors
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MDM300 battery pack for MDM300-IS for serial Number versions S/N 165024 onwards
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Accessories
Assembly
Cables
Pressure Tx 10barg 2m cable for MDM300-STD (Range 0-145 psig/0-10 barg)
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Pressure Tx 40barg 2m cable for MDM300-STD (Range 0-580 psig/0-40 barg)
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Pressure Tx 100barg 2m cable for MDM300-STD (Range 0-1450 psig/0-100 barg)
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Pressure Tx 400barg 2m cable for MDM300-STD (Range 0-5800 psig/0-400 barg)
Normally ships in 4-6 Weeks
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800-567-8686
Pressure Tx 10barg 5m cable for MDM300-STD (Range 0-145 psig/0-10 barg)
Normally ships in 4-6 Weeks
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800-567-8686
Pressure Tx 40barg 5m cable for MDM300-STD (Range 0-580 psig/0-40 barg)
Normally ships in 4-6 Weeks
Call Today!
800-567-8686
Pressure Tx 100barg 5m cable for MDM300-STD (Range 0-1450 psig/0-100 barg)
Normally ships in 4-6 Weeks
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800-567-8686
Pressure Tx 400barg 5m cable for MDM300-STD (Range 0-5800 psig/0-400 barg)
Normally ships in 4-6 Weeks
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Connection
Gas Ftg
Sampling Kits
Easi-fit sampling kit with 6mm fitting and filter for MDM300 series
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Easi-fit sampling kit with pressure transmitter for MDM300 series
Normally ships in 4-6 Weeks
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800-567-8686
Sampling Systems
Provides best possible performance from your MDM300 or MDM300 I.S
Normally ships in 4-6 Weeks
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800-567-8686
Sampling system for SF6 app dilo DN20 connector
Normally ships in 4-6 Weeks
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Seals
Transport
Hazardous area compliant hard carry case for MDM300-IS and accessories
Normally ships in 4-6 Weeks
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