Description of the relay outputs
37
AUX
(Programmable function output)
The functioning of this volt-free relay output is programmable:
1. For reporting a current analysis and/or
2. For contact prior to an analysis, e.g. to operate a
cooler or
3. Contact after an analysis
In
, select
=>
=>
Select the program step at which the AUX contact is to be activat-
ed
Under "Time" enter the contact duration in minutes (m) and sec-
onds (s)
Press "ENTER" to confirm the entry
Alarm
(fault message output)
The "Alarm" output is a volt-free change-over relay contact. During
trouble-free operation, the contact between the terminals 15
– 16 is
closed and the one between terminals 14
– 16 is open. In case of a
voltage breakdown, the contact between the terminals 14
– 16 is
closed and the one between terminals 15
– 16 is open.
The instrument is equipped with a range of monitoring functions. You
can define the individual statuses as a fault and program the corre-
sponding message either as a continuous contact (A) or as a mes-
sage impulse (M).
Functions/Behaviour of the "Alarm" output:
-
With a continuous contact, the "Alarm" output remains activated
(terminals 15
– 16 closed) as long as the fault persists.
-
With a message impulse, the output is switched 'on' for 2 sec-
onds and then switched 'off' for 5 seconds.
-
If several faults with differently programmed messages are sig-
nalled simultaneously, the output is switched to continuous con-
tact.
-
The red LED "Alarm" and the text on the display indicate a fault.
-
The fault message signal at the "Alarm" output is deleted by con-
firming the fault via the "Horn" key.
-
The error message can only be deleted if the fault has been elim-
inated.
-
Exception: The maintenance date has been exceeded. This mes-
sage is confirmed in the M menu, see below (Maintenance).
-
Each new fault is entered into the error history (also see "i
menu").
-
There is
no
additional alarm via the fault message output when
the limit value is exceeded!
The error messages are described under "Error messages / Trouble-
shooting"
Alarm
Terminals 14,15,16
Always
fault message
for:
Power failure
Low water level
Function fault optics
Measuring fault analysis
Function fault dosing
pump
Function fault drain out-
let
Function fault failure 24V
Programmable
fault
messages for:
Low indicator level
Function fault dosing
error
Function fault soiling
Measuring fault turbid
Transmission error
Measuring range ex-
ceeded
Maintenance exceeded
The following faults
activate the "Alarm"
output and are
displayed:
AUX
Terminals 12,13
▼▲
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