7
To change between modes, simply press and release the [
MODE
] key, the unit will cycle
through these four modes. When change mode, please carefully observe the annunciators
on the LCD.
Note
: Every time the unit is turned
OFF
the last mode will be saved so that when turn the
instrument
ON
again it will return to this mode.
CALIBRATION SET-UP
BEFORE CALIBRATE
System calibration is rarely required as
Model 3173/3173R
were all factory pre-calibrated.
However, from time to time it is wise to check the system calibration and make
adjustment when necessary.
When the new probe / instrument is used,
CALIBRATION
should be performed, since
the cell constant of conductivity probes may differ from each other.
CALIBRATION PROCESS
1. After the power-on diagnostics, press the [
CAL
] key and the
CAL
annunciator will
appear on the display.
TEMPERATURE COEFFICIENT
2. The unit will display
1.91%
or a value set previously using
this procedure. Use the [
∆
] and [
∇
] keys to change the
value to the desired new
temperature coefficient
.
3. Press the [
ENTER
] key to save the new value of
temperature coefficient
or press the [
MODE
] key to exit
(and go to the next calibration parameter).
TEMPERATURE REFERENCE
4. The unit will display
25.0C
or a value set previously using
this procedure. Use the [
∆
] and [
∇
] keys to change the
value to the desired new
temperature reference
.
5. Press the [
ENTER
] key to save the new value of
