User`s manual

ML180-MLT350 Dehumidifiers
32
7 Appendix 1- Options 190TGB-1034-A
7.4.4 Process related alarms
The operator panel is equipped with an internal alarm, that is activated
when the alarm limits are exceeded. The alarm is indicated in the
display of the operator panel.
Reading alarm messages
The display of the operator panel indicate (steadily lit) following
messages:
rHI Upper alarm limit exceeded
rLO Lower alarm limit exceeded
E1 Faulty humidity transmitter or incorrect connections
EEE All parameters settings are lost
Parameter Description Possible parameter
selection
Factory
setting
05 Correction of the humidity transmitter’s read-off value 0 %RH No settings
10
11
12
13
OFF/ON interval, stage1
Offset stage 1
OFF/ON interval, stage 2
Offset stage 2
1-15 %RH
-15- +15 %RH
1-15 %RH
-15- +15 %RH
2 %RH
1
-1 %RH
6 %RH
2
-1 %RH
14
15
OFF/ON interval alarm output
Offset from set point, alarm output
1-15 %RH
-15- +15 %RH
1%RH
0 %RH
30
31
32
33
34
35
36
37
Alarm limit type:
Absolute limit or relative to set-point
Minimum alarm limit
Maximum alarm limit
Delay for minimum alarm
Delay for maximum alarm
Function of alarm output
Reset alarm when the cause of alarm is rectified
Reset alarm when SET button is pressed (display only)
0 = Not activated
1 = Absolute; 2 = Relative
-100 - +100 %RH
-100 - +100 %RH
0 - 99 minutes
0 - 99 minutes
0 = watch alarm
1 = control alarm
0 = No; 1 = Yes
0 = No; 1 = Yes
2
-50 %RH
10 %RH
0 min
0 min
1
1
1
40
41
Power delay after power failure
Forced relay function at humidity transmitter failure
0 - 99 minutes
0 = Off; 1 = Humidification;
2 = Dehumidification
0 min
2
1
Switches on when RH rises above 2% of the setpoint, Off when the RH falls below 1 % of the setpoint
2
Switches on when RH rises above 6% of the setpoint, Off when the RH falls below 1 % of the setpoint
Table 7-1. Operator panel system parameters