Vaisala HMW90 - Manual (Page 26)

User's Guide _______________________________________________________________________
24 ___________________________________________________________________ M211399EN-F
For examples of relay behavior in DIP mode, see Figure 7 and Figure 8
on page 24. Note also the following:
- Relay operation in DIP mode is linked to RH measurement on
HMW93, and to T measurement on TMW93.
- Relay contacts are open if the transmitter is in error state (an active
error is present).
- Relay contacts are open when transmitter is powered off.
If you need to configure the relay for some other parameter or need
additional configuration options, see section Relay Configuration in
Custom Mode on page 55.
1111-117
Figure 7 Relay High in DIP Mode (HMW93)
1111-118
Figure 8 Relay Low in DIP Mode (HMW93)
90
70
80
100
60
50
40
R
el
at
iv
e
H
um
id
ity
(%
)
Time
30
20
10
0
Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay High” Relay closed
Relay open
90
70
80
100
60
50
40
R
el
at
iv
e
H
um
id
ity
(%
)
Time
30
20
10
0
Relay closed
Relay open Rotary switch set to 6 (60 %RH)
DIP 5 set to “Relay Low”