Vaisala HMW90 - Manual (Page 25)

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 23
If you change the position of DIP switch 8, note the following:
- When changing from Custom to DIP: Current custom settings are
overwritten by the settings from the DIP switches at next power up.
Settings that do not have DIP switches remain unchanged, except for
display layout (DSEL command) that is set to default.
- When changing from DIP to Custom: The DIP settings that were
used when the power was last on are carried over to the custom
settings at next power up.
Relay Configuration in DIP Mode
NOTE Relay is included on HMW93 and TMW93 transmitters only.
When the transmitter is configured using DIP switches, the functioning
of the relay is configured by DIP switch 5 and the rotary switch on the
component board:
- DIP switch 5 determines if the relay is closed above or below the
setpoint.
- The position of the rotary switch determines the setpoint according to
the table below.
Table 5 Rotary Switch and Relay Setpoint
Rotary Switch Position Setpoint on HMW93 Setpoint on TMW93
0 5 %RH 0 °C (32 °F)
1 10 %RH 5 °C (41 °F)
2 20 %RH 10 °C (50 °F)
3 30 %RH 15 °C (59 °F)
4 40 %RH 20 °C (68 °F)
5 50 %RH 25 °C (77 °F)
6 60 %RH 30 °C (86 °F)
7 70 %RH 35 °C (95 °F)
8 80 %RH 40 °C (104 °F)
9 90 %RH 45 °C (113 °F)
NOTE The rotary switch only has 10 positions. Do not turn the switch so that it
is between two positions.