Alibration; Hd-Ph (Commissioning The Pump) - Etatron HD-PH Instrucciones

8.0 C
OMMISSIONING THE
8.1 HD-PH
1 Suction hose connector nipple
2 Delivery hose connector nipple
3 Stroke Led (red)
4 Power Led (green)
5 Injection frequency regulation knob
"pH/mV"
6 Front cover fixing screw
9 Fuse
10 Supply cable
fig.9
a. Install the metering pump as described in Chapter 6.0 "P
b. Place the electrode in the electrode holder.
c. Connect the electrode to the metering pump by means of the male BNC connec-
tor (12), rotating it through 90°C.
d. Position the "pH set" knob (13) to the desired pH value, bearing in mind that the
scale dimensions are such as to give rise to a possible discordance between the
intervention point and the reading on the display (18). For example, if the "pH
set" knob is set to pH 7 and one then notes that pump has not yet come into
operation at pH 7.2, it would be desirable to carry out a check and, if necessary,
correct the set point by adjusting the "pH set" knob.
e. Use the "ACID/ALK" switch (15) to select the required type of intervention (acid
or alkaline). Example: If the intervention point is set at pH 9 and an acidification
is required, set the switch to ACID. The pump will then start dosing the addi-
tive every time the pH rises above 9. If it is desired to alkalinize the system, set
the switch to ALK, in which case the pump will come into operation every time
the pH drops below 9.
f. Use the FLOW knob (5) to set the number of injections per minute, reducing or
increasing the pump discharge according to requirements. In this connection it
ENG
P
UMP AND
(
COMMISSIONING THE PUMP
C

ALIBRATION

)
11 Control panel
12 Electrode cable connector
13 Set-point selector "pH set"
15 Acid/Alk switch
16 Calibration trimmer
17 Calibration trimmer " ∆ 0 "
18 Display
36
".
UMP INSTALLATION