
Instruction Manual
pH 1100/ 2100
26
9 TEMPERATURE
CALIBRATION
9.1 Temperature
Calibration
For this calibration procedure, the ATC probe should be attached to the meter. ATC will appear in the upper display. See
Figure 72
.
1. Dip the temperature probe into a solution of known temperature,
such as a temperature bath, for a few minutes until the
temperature probe stabilizes.
2. If you are not already in pH/temp measurement mode, press
EXIT
and use
>/CAL
to select pH/Temp. The mode selected
will flash See
Figure 73
. Press
ENTER
to confirm selection.
The meter is now in pH measurement mode.
3. Press
>/CAL
to enter pH/Temp calibration mode. The display
will flash
Cal Mode Activated, Please wait...
Press
>/CAL
again
to enter the temperature calibration mode. The display will flash
Temperature Cal Mode
. See
Figure 74
. Then the upper display
will read
ATC Temp: (current temperature)
and the lower
display will read
Key In Std: (current temperature)
. See
Figure
75
.
4. Key in the known temperature value from step 1 using the
numeric keypad. If you make a mistake, use the
∆
/MI
or
∇
/MR
keys to highlight mistake, then re-enter.
5. Press
ENTER
to confirm. The display flashes
Temp Cal
Complete, ATC Offset:
(shows offset value). See Figure 76. The
display then flashes
Sys Updating, Please wait...
, and the meter
returns to pH measurement mode.
NOTE:
The meter will not allow input values that exceed the
allowable limit of ±5°C (±9°F) of the original displayed reading.
9.2
Temperature Calibration Error Messages
If you press
EXIT
to leave the temperature calibration mode prior to
confirming the calibration, the screen will flash
Error: Cal Aborted
.
See
Figure 77
. The meter then returns to pH measurement mode. If
the temperature value keyed in (temperature offset) is not within
±5.0°C (±9.0°F) of the current temperature value, the upper display
will flash
Error:
and the lower display will read
ATC offset too large
.
See
Figure 78
. The meter returns to temperature calibration mode
and a new temperature offset value needs to be entered.
Error :
ATC Offset too large
ATC Temp
: 25.0 C
Key In Std: 25.0 C
°
°
Temperature Cal Mode
Error: Cal Aborted
pH/Temp mV Ion
Select & Press ENTER
7.546pH 25.3 C ATC
Jan 18 2002 08:46:30
°
Figure 72
Figure 73
Figure 74
Figure 75
Figure 76
Figure 77
Figure 78
Temp Cal Complete
ATC Offset: 2.0 C
°
Содержание CYBERSCAN PH 1100 2100 PHION METER
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