The DewProR MMR 30 is a compact, mid-range moisture transmitter probe designed specifically for refrigeration dryer manufacturers and users. The MMR 30 measures dew point at line pressure or atmospheric pressure and installs easily on a dryer outlet header.

The MMR 30 uses a proven polymer capacitive sensor to provide a measurement range of -15°C to +85°C (+5°F to +185°F) with ±1.0°C (±1.8°F) accuracy.

The instrument can be configured and controlled with a PC using DewPro Communication software. With this software, the user can set the dew point range, adjust the loop content and read the dew point.

• 4 to 20 mA loop powered.

• Simple two-wire connection.

• Fast response times.

• Trouble-free indoor or outdoor mounting.

• Internal bypass system.

• Eliminates sample system.

• Measures at line pressure.

• DewPro Communication Software.

• Wall Mount Kit.

• English or Metric Fittings.

• External display available with loop-power supply and alarm contact.

• Integral display with suser interface.

• Power Supply.

Dew Point Range: -15°C to +85°C (+5°F to +185°F)

Dew Point Accuracy: ±1°C (±1.8°F) for dew points above 0°C (+32°F)

Repeatability: ±1°C (±1.8°F)

Temperature: -15°C to +85°C (+5°F to +185°F)

Pressure: 250 psia (17 bar)

Output: Loop current 4 to 20 mA; 16 μA resolution

Flow Block: 316 stainless steel (1.440/1.4436) with 1/2” MNPT (G 1/2 thread (DIN ISO 228)) and gasket seal

for Flow Block: 1-5/8” (42 mm)

Electronics: Microprocessor controlled

Moisture Unit: Dew point temperature in °F or °C, hardware selectable

Supply Power: 24 V DC nominal, tolerance 12 to 32 V DC

Protection: NEMA 4X