DewPro MMR101 User’s Manual
15
Chapter 3. Operating the MMR101
Chapter 3. Operating the MMR101
3.1
Introduction
This section gives a brief description of the MMR101 operation including powering up and displaying measurements.
This section includes the following:
• Powering Up
• Displaying Measurements
• Measurement Accuracy
Use these instructions to properly operate the MMR101.
CAUTION!
To ensure the safe operation of this unit, you must install and operate the MMR101 as described in this
manual. In addition, be sure to follow all applicable safety codes and regulations for installing
electrical equipment in your area.
3.2
Powering Up
CAUTION!
Before powering up make sure that all equipment in proximity to the unit (e.g. valve, pumps, etc.) is
functioning properly.
The MMR101 has a power supply that accepts 12 to 28 VDC (24 VDC nominal). After making electrical connections,
including grounding, as described in the previous section,
Installing the MR101
, connect power. Use the following
section to display the desired data.
IMPORTANT:
The power line/connection is the main disconnect device.
3.3
Displaying Measurements
If your MMR101 is supplied with a display, you can display the desired measurements using the key located to the left
and right of the display as shown in Figure 8, below. Units without the display, must be manually setup as described
in <Title Font> Manually Setting the Measurement Units on page 5.
Figure 8: Display and Keys
The available measurements options are arranged in a matrix format. Each option is assigned coordinates on the 10
by 10 matrix, specified with V (vertical), H (horizontal) and a number for each. You select the desired option by
entering the matrix position. The matrix, on the next page, shows all the possible options. See below for an example of
how to program the unit.
Example:
To set the dew point value to 5
o
C for 4 mA (V1 H3 on matrix):
1.
Press the V key until the display shows V1.
2.
Press the H key until the display shows H3.
3.
Use the + or - key to change the numeric value to 5.
