Chapter 6 ____________________________________________________________ Troubleshooting
VAISALA ________________________________________________________________________ 75
Reverting to Factory Settings
HMW90 series transmitters, including factory-customized transmitters,
can be reverted to their original shipping configuration using the DIP
switches or the service port.
Reverting the transmitter to factory settings clears all user configuration
that has been done using the service port. User-made humidity and
temperature adjustments are also cleared from the HTM10 module. The
factory calibration will remain.
Reverting to Factory Settings Using DIP
Switches
NOTE
Factory reset functionality using DIP switches
is present in transmitters
firmware version 1.0.3 or newer. The firmware version is visible on
the transmitter startup screen.
1. Disconnect the transmitter cover from the mounting base.
2. Make a note of the DIP switch positions before changing anything,
so you can restore the positions later.
3. Analog output models: Set the DIP switches as shown in Figure 36
below: move all switches up.
Digital output models: Set the DIP switches in the leftmost DIP
switch bank as shown in Figure 37 on page 76. Do not move the
switches in the other bank.
1203-018
Figure 36 DIP Switches in Factory Reset Position
Non-Metric
Td
0...5V
Relay On
Relay High
Custom
Metric
RH
0...10V
Relay Off
Relay Low
DIP
Non-Metric
Td
Custom
Metric
RH
DIP
HMW92/TMW92 HMW93/TMW93
1
2 3 4
5 6
7
8
1
2 3 4
5 6
7
8
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