Vaisala HMW90 - Manual (Page 81)

Chapter 6 ____________________________________________________________ Troubleshooting
VAISALA ________________________________________________________________________ 79
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
with 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 32
below: move all switches up.
Digital output models: Set the DIP switches in the leftmost DIP
switch bank as shown in Figure 33 on page 80. Do not move the
switches in the other bank.
1203-018
Figure 32 DIP Switches in Factory Reset Position
No
n-M
etr
ic
Td 0..
.5V
Re
lay
On
Re
lay
Hig
h
Cu
sto
m
Me
tric RH
0..
.10
V
Re
lay
Of
f
Re
lay
Lo
w
DI
P
No
n-M
etr
ic
Td Cu
sto
m
Me
tric RH DI
P
HMW92/TMW92 HMW93/TMW93
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8