DewPro MMR30

DewPro MMR30 RH Probe / Transmitters

The DewPro( MMR30 is a compact, mid-range moisture transmitter probe designed specifically for refrigeration dryer manufacturers and users. The MMR30 measures dew point at line pressure or atmospheric pressure and installs easily on a dryer outlet header.

The MMR30 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.

Features:

4 to 20 mA loop powered

Simple two-wire connection

Fast response times

Trouble-free indoor or outdoor mountings

Internal bypass system

Eliminates sample system

Measures at line pressure
　

Options:

	DewPro Communication Software
	English or Metric Fittings
	Integral display with user interface
	Power Supply
	Wall Mount Kit
	External display available with loop-power supply and alarm contacts

原廠目錄下載 (PDF Format, 1 pages, 122 KB.)
DewPro MMR30 Humidity Transmitter

SPECIFICATIONS

Sensing Element: Silicon-based polymer, capacitance principle, IC electronics

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)

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

Maximum Operating 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

Wrench Width 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

Weight: 4.4 lbs (2 kg.)

Ordering Information MMR30
1 2 3 4 5

1 Certification
R Standard (not certified for safe area)
Y Other

2 Process Connection
1 Process connection 1/2” MNPT
3 Process connection G 1 / 2 (male thread)
9 Other

3 Orifice Configuration
A Inlet: None, Outlet: Orifice, with _” FNPT connections
B Inlet: None, Outlet: Orifice, with (6 mm) _” tube fitting*
C Inlet: None, Outlet: None, with (6 mm) _” tube fitting*
D Inlet: Orifice, Outlet: None, with (6 mm) _” tube fitting*

4 Enclosure Conduit
1 Enclosure Conduit _” FNPT with cable gland and plug
2 Enclosure Conduit PG 16 (female) with cable gland and plug

5 Output Configuration
A 1 x 4 to 20 mA, dew point -15°C to +85°C (5°F to 185°F), fault status: 22 mA
C As A, fault status: Hold
D As A, fault status: 3.6 mA
G As A, with integral display, user interface
Y Other

* _” tube fitting used with _” MNPT process connection selection 6 mm tube fitting used with G 1 / 2 process connection selection