Wall Mounting Version - Culligan MP97 Manual

ADDENDUM CHLORINE INPUT
ELECTRIC CONNECTIONS
PANEL VERSION
The signal is received from the galvanometric cell (our standard CLE 01/D) by means of a
2-pole cable which need not be shielded unless its length exceeds 5 meters. In any case
its length must not exceed 15-20 meters. For longer length cables, please consult our
technical department. Input is provided on the extractable terminal strip (last two terminals
on the right). Connect the terminals Cu and Au to the relative terminals on the cell. If a
shielded cable is used, the braiding must be connected to pin 19 only (CLE 01/D side
open). As already mentioned in the main manual, the signal cables must be kept separate
from the power cables.

WALL MOUNTING VERSION

The signal is received from the galvanometric cell (our standard CLE 01/D) by means of a
2-pole cable which need not be shielded unless its length exceeds 5 meters. In any case
its length must not exceed 15-20 meters. For longer length cables, please consult our
technical department. Input is provided on the extractable terminal strip (last two terminals
on the right). Connect the terminals Cu and Au to the relative terminals on the cell. If a
shielded cable is used, the braiding must be connected to pin 16 only (CLE 01/D side
open). As already mentioned in the main manual, the signal cables must be kept separate
from the power cables.
PERMANENT PROGRAMMING
Parameters 20, 21 and 22 are set automatically by the microcontroller which recognises the position of the dip-
switch S3 situated on the master card (see drawing on right). If S3 is configured in a different way from that
illustrated, we cannot guarantee that the instrument will work correctly.
ELECTROCHEMICAL SETTINGS
1. Read and respect the operation instructions of the CLE 01/D cell (or equivalent) and, in particular:
a) keep the instrument and cell running for at least 12 hours in chlorinated water (if possible at the average
working value).
b) make sure that the temperature, pH and flow are constant and are those relative to the working
conditions.
c) use a photometer to measure the chlorine concentrations according to the DPD1 (free chlorine) method.
d) keep to hand an active carbon filter if you wish to have electrochemical zero setting.
Electric zero-setting : the P97's input has been designed in such a way that the electric zero practically
2a.
coincides with the electrochemical zero for the CLE 01/D chlorine cell. In other words, the electric setting is
sufficient in most cases.
3a. Disconnect the 3-pin extractable terminal strip of the input.
2b. Electrochemical zero-setting : in order to have maximum zero-setting precision it is necessary to use water
which has the same chemical characterstics as that used when working, but chlorine-free. In practice, it is
best to dechlorinate the water used in working conditions through an active carbon filter. The flow must be
the same as that under working conditions.
3b. Make the measurement water flow through the active carbon filter at the correct flow and make sure that
the filter works properly by checking that the water that has passed through it is chlorine-free (0.00 ppM)
with the use of the DPD1 measurement.
4. Wait until the value on the µP 97's display is steady (at any value).
Press the key [ CAL ]  <<CAL>> appears on the display.
5.
Press the key [ - ]  the µP 97 displays a flashing zero (0.00 ppM).
6.
7. Press the key [ + ] to increase the setting (e.g. if the water in the cell is not exactly at 0.00 but at 0.10 ppM
because the filter is unable to eliminate all the chlorine).
8. Press the key [ - ] to decrease the setting.
9a. Press the key [ CAL ] to confirm the new setting.
9b. Press the key [ NEXT ] to retain the preceding setting in the memory.
10. Flow measurement water (chlorinated) through the cell.
11. Wait until the µP 97's display gives a steady value (this could take 5 minutes or even more).
12. Read the value of the chlorine present in the water flowing out of the cell using a DPD1 colorimetric test.
Press the key [ CAL ]  <<CAL>> appears on the display.
13.
Press the key [ + ]  the µP 97 displays the previous value, flashing.
14.
M003-23 - Rev. 03 - 05/2009
Microprocessore µP97
REF
Cu Au
.
15 16 17 18 19
REF
Cu Au
.
12 13 14 15 16
32