Vaisala DRYCAP DMT143 - Operation with DM70 Handheld Meter

5.3 Operation with DM70 Handheld Dew Point
Meter
You can connect the DMT143 to the MI70 indicator (the handheld measurement display
included in the DM70 package) using the MI70 connection cable (order code 219980SP). This
allows you to view and use the measurement data with the MI70 indicator. You can, for
example, perform a field check of the measurement accuracy.
When connecting or disconnecting the MI70 indicator, always make sure the MI70 indicator is
powered o. Connecting or disconnecting the MI70 when it is powered on may cause incorrect
values to be displayed.
If you have altered the serial port settings of the DMT143, always make sure you switch o the
other power supply (disconnect the “Analog” cable if in use) before powering up the MI70
indicator.
When the transmitter's power supply is disconnected, it will carry out the startup
sequence when powered on again.
You can adjust the following DMT143 settings in the MI70
Measurement Settings menu:
• Transmitter address in POLL mode.
• Alarm LED dew point limit (not shown if dew point alarm is disabled or LED is completely
turned o).
• Oset correction for dew point measurement. The maximum oset you can set is ±5 °C.
Figure 18 Settings Menu
Figure 19 Measurement Settings Menu
DMT143 User Guide M211435EN-J
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