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HART Connections
The modem can be connected in one of two ways: across the loop load resistor (A – B) or across the HART transmitter terminals (C – D). See Figure 2.
Figure 2. HART Connections
NOTE: Make the HART connections before turning on the power to the modem. This will improve initial communication reliability.
PC Test Software
Program “HM Test” is included on the installation CD to test the operation of the HM-
Pocket PC Test Software
Program “HM Test CE” is included on the installation CD to test the operation of the
1.Use the ActiveSync utility to load this program on to your Pocket PC.
2.Start “File Explorer”.
3.Navigate to the “My Device” directory.
4.Tap “HM Test CE” to launch the program.
5.Tap “Poll” to search for a HART device on the network. The program sends HART Command 0 to determine what transmitters are connected to the loop. The “Status” box will indicate successful operation of the
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