The DewPro MMR30 is a compact, mid-range moisture transmitter designed specifically for refrigeration dryer manufacturers and users. The DewPro MMR30 measures dew point at line pressure or atmospheric pressure and installs easily on a dryer outlet header.
The DewPro MMR30 uses a proven polymer capacitive sensor to provide a measurement range of 5°F to 185°F (-15°C to 85°C) with ±1.8°F (±1.0°C) accuracy. The optional integrated display with user interface provides full programming and diagnostic capability.
Manufactured by: Panametrics
Model: DewPro MMR30 Moisture Transmitter
Sensing element | Silicon-based polymer, capacitance principle, IC electronics |
Dew point range | 5°F to 185°F (-15°C to 85°C) |
Dew point accuracy | ±1.8°F (±1°C) above 32°F (0°C) dew point @ 25°C |
Operating temperature range |
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Maximum operating pressure | 250 psia (17 bar) Inlet filter: 2 micron sintered stainless steel |
Air bleed off at 100 psig (7 bar) | Approximately 1 SCHF (28 sl/h) |
Output | Loop current 4 to 20 mA; 16 :A resolution |
Flow block | 316 stainless steel with 1/2 in NPT-M or G 1/2 thread; (DIN ISO 228) and gasket seal |
Wrench width for flow block | 1-5/8 in (42 mm) |
Electronics | Microcontroller operated |
Hardware selectable units | Dew point temperature in °F or °C |
Supply power | 24 VDC nominal, tolerance 12 to 30 VDC |
Optional display | Four-digit numeric display with bar graph and matrix position indication. Four user interface keys for unit selections, output adjustments and ranging. |
Protection | Type 4X/IP67 |
Weight | 4.4 lb (2 kg) |
European compliance | Complies with EMC Directive 89/336/EEC and PED 97/23/EC for DN<25 |