Panametrics DewPro MMR30, Installation & Operation Manual

Page: 10 / 45

Chapter 1. General System Information
2 DewPro® MMR30 Installation & Operation Manual
• B Inlet: None; Outlet: Orifice, with (6 mm) ¼” tube fitting installed
• C Inlet: None; Outlet: None, with (6 mm) ¼” tube fitting installed
• D Inlet: Orifice; Outlet: None, with (6 mm) ¼” tube fitting installed
• S Other
4. Enclosure Conduit:
• 1 Enclosure conduit M20X 1.5-F with cable gland and plug
• 2 Enclosure conduit M20X 1.5-F with 1/2” NPT-F adapter and plug
• S Other
5. Output Configuration/Dewpoint Range:
• A Td -15°C to +10°C (+5°F to +185°F), no display, error 22 mA
• C As A, fault status: hold
• D As A, fault status: 3.6 mA
• G As A, with integral display, user interface
• S Other
1.2 Introduction
1.2.1 Unit Description
The DewPro MMR30 (shown in Figure 2 below) is a loop powered mid-range moisture transmitter. The transmitter
includes a sensor element, a flow chamber, a weatherproof enclosure, microprocessor electronics, and assorted
fittings, all in a compact assembly. In most cases, either the inlet or outlet port includes an orifice to regulate the flow.
The placement of this orifice determines whether the dew point measurement is done at process (line) pressure
(outlet orifice), or at atmospheric pressure (inlet orifice).
1.2.2 Optional Display/User Interface
The optional display/user interface feature allows the DewPro to be configured to the user's specifications. See
Chapter 4 for more information.
Figure 2: The DewPro MMR30