Vemer FHT Series User Manual page 17

1 external alarm (with open contact) with "DID" delay time and automatic reset
after alarm goes off.Output status then turns to "SUI"
2 manual-reset external alarm (with open contact).
3 input acts as switch: device is on when contact is closed and off when contact is
open
4 input acts as display change-over between probes S0 and S1 (open contact - S0
probe, closed contact - S1 probe)
Digital input function is excluded when one of the following operating
modes is selected in the system menu [SYS]: mode=6, mode=7 and
mode=8
(12) the delay after which the device responds to a signal received from the digital input
(13) when the digital input is active and "DID" time has elapsed, the output may take on
the following status:
0 both relays OFF
1 relay 1 ON and relay 2 OFF
2 relay 1 OFF and relay 2 ON
3 both relays ON
[ALR] alarm menu
Confi gurable
parameter
labels
SUA
LOA
HIA
DFA
TRA
SUO
EAC
RAR
RAA
TRP
Note:
(14) output status when in probe alarm condition (see note n°13)
(15) value to be added or subtracted to the established set-point, respectively for
maximum or minimum alarm
Description
output status
in probe alarm condition
minimum alarm shift
maximum alarm shift
alarm differential
alarm activation delay time
buzzer activation
timed alarm message
activation
automatic relay reset and min/max
alarm message reset on alarm end -
automatic min/max alarm
message reset on alarm end
min/max alarm generation delay
from power-on
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User Manual – Thermoregulator FHT
Parameter
unit value default notes
min max
- 0 3
degrees 0.1 100
degrees 0.1 100
degrees 0.1 100
min 0 200
- no yes
- no yes
no yes
- no yes
hours 0 15
0 (14)
50 (15)
50 (15)
2
0
no (16)
no (17)
yes (18)
yes (19)
0 (20)