Description of the relay outputs
38
Maintenance
(output for maintenance message)
The "Maintenance" output is a volt-free change-over contact. During
trouble-free operation without a programmed maintenance interval,
the contact between the terminals 17
– 19 is closed and the one be-
tween terminals 18
– 19 is open.
The instrument is equipped with a range of monitoring functions and
a programmable maintenance interval. The respective maintenance
message is always a continuous contact.
A maintenance request is displayed via the yellow "Maintenance"
LED. The maintenance display can only be deleted once the status
has been corrected or after the maintenance request has been con-
firmed.
Please refer to the section "Password protection and basic program-
ming" for further programming details.
Maintenance
Terminals 17,18,19
Activation
of the
maintenance output
for:
Low indicator level
Function fault dosing
error
Function fault soiling
Maintenance date
reached
