Hanna Instruments PCA 300 Series - Manual (Page 36)

36
Earth
Ground
Out
Recorder
Output
This procedure will set the output to 1%. Fine tune the re-
corder output by following the procedure in step 3.
Step 3
If the recorder output needs fine tuning, use
the diagnostic routines described below.
• Set the DIP switch to the desired option:
0-10mV/100mV/1V or 4-20 mA.
• Connect a voltmeter, milliammeter or mul-
timeter to the recorder output terminals in
the following sequence:
If output is VOLTAGE
– GROUND output terminal to GROUND input of
multimeter;
– OUT output terminal to VOLTS input of multimeter.
After connections, switch the multimeter to DC VOLTS mode.
If output is CURRENT
– GROUND output terminal to GROUND input of
multimeter;
– OUT output terminal to AMPS input of multimeter.
After connections, switch the multimeter to DC AMPS mode.
3.A If the recorder zero reads too low
3.A.1 Press DIAG. The display will show the last diagnostic
mode and the right-most numerical digit will blink.
3.A.2 Enter code 100 using the key.
3.A.3 Press DIAG; “r up” will be displayed and the analyzer
will execute this mode fine tuning the low value.
DIAG