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Q45H Training Handout 4.05
Page 5 of 11
Short Guide for Calibration of pH corrected Q45H62 chlorine monitor
This guide is intended for use for routine calibration only. If problems during calibration occur please consult the
full O&M manual. Main thing to remember is to calibrate the pH using 2 standards prior to calibrating the chlorine
(only when the correction is turned ON).
General
To calibrate the Q45H62 Residual Chlorine Monitor with pH correction turned ON you will need:
1.
pH buffers. Ideally pH 4 and pH 7. On applications with pH 7+ use buffers 7 and 10.
2.
Method of determining the level of residual chlorine, e.g. Hach colorimeter or Palin test.
3.
Chlorinated water 0. for calibration (this minimum is required due to potential error of dpd test.
pH Calibration (Must do first)
Keys to Press
Screen Display
User Action Required
1
MENU/ESC until
CAL MENU
2
ENTER
Cal Cl2
3
∆
,
∆
,
∆
,
∆
Cal Temp, Set Range,
Cal pH type. 2 Pnt, Cal
pH buf1
If Cal pH type 1 Pnt is displayed.
Press ENTER and use
∆
to select 2
Pnt
4
Place sensor in buffer 1
5
Wait 1 – 2 minutes (stir probe)
6
ENTER
Cal pH buf XX.X pH
Right hand digit flashes
7
Adjust pH value using left arrow to
select digit and to
∆
adjust
8
ENTER
Accepted
9
Rinse sensor then place in buffer 2
(low)
Wait 1 minute
10
∆
Cal pH buf2
11
ENTER
Cal pH buf XX.x pH
Right hand digit flashes
12
Adjust pH value using left arrow to
select digit and to
∆
adjust
14
ENTER
Accepted
15
To return to MEASURE Menu use
MENU/ESC, to go to CAL Cl2 press
∆
Normal (“1 Ref”) Cl
2
calibration
Keys to Press
Screen Display
User Action Required
1
a)
∆
or MENU/ESC
CAL MENU
2
ENTER
Cal Cl2
3
ENTER
Set cal mode, 1 ref
If the display says 2 Zero or 3 cmp
press ENTER and use
∆
to adjust to 1
