Release Contact; Ph Settings - Ecolab MULTRONIC Manuel Technique

NOTE
3.5

Release contact

With the release contact (terminal 89/90 normally open contact), the control functions of
the device are linked with an external condition (e.g. circulation pump must be switched
on).
The release always must be on because with open release contacts will block all control
outputs are blocked.
If the release is taken away and one of the following functions (circulation control,
bleeding, biocide metering) is currently active, this means:
Pre-circulation
The pre-circulation time is reset and a new activation of the circulation follows over
relay 3 terminal 5/6 or 5/6a.
If the release contact does not close again by a previously set time (see Operating
Manual Timer Module, Chapter 4.1 Controller Parameters / Timer, sub section "Max.
Interruption time"), the "ALARM Max. Interruption time" will be displayed.
If the release signal fails repeatedly, after the given number of pre-circulation starts
(see Operating Manual Timer Module, Chapter 4.1 Controller Parameters / Timer, sub
section "Pre-Circulation Starts") to restart attempts, the pre-circulation will be aborted
and "ALARM pre-circulation starts" will be displayed.
Bleeding
The control of the bleeding valve is blocked (bleeding valve closes).
Biocide metering
The biocide metering is stopped; the metering time is interrupted and continued when
the release contact closes again.
If the release contact does not close again by a previously set time (see Operating
Manual Timer Module, Chapter 4.1 Controller Parameters / Timer, sub section "Max.
Interruption time"), a complete abort of biocide metering results and "ALARM Max.
Interruption time" will be displayed.
The tracking time after the biocide metering is not interrupted by opening the release
contact.
3.6

pH settings

The settings for the pH monitor must be adapted to the system requirements. There
are no recommendations.
Please read the supplement on the pH-measuring module for information on the
function of the individual parameters for pH-measurement.
417101341_Anhang14_Kuehlwasser.doc
Relay1 is designated as the alarm output for the limit-contact.
Relay 2 and 3 are always allocated to measuring module 1 (desalination module).
Relay 4 to 7 for the measuring modules 2 and 3 are located on the relay card
255119. The current outputs are also allocated to the modules. These outputs are
galvanicaly isolated.
Cooling water treatment
- 24 - Rev.: 05-07/10