Instruction manual

Instruction Manual PC 510
18
4. If necessary, ensure that the probe’s yellow probe guard is attached. Dip the probe into the
sample. When dipping the probe into the sample, take care to ensure that the liquid level is above
its upper steel band. Stir the probe gently in the sample to create a homogeneous sample.
5. Allow time for the reading to stabilise. Note the reading on the display. If the READY indicator is
selected on, it will appear when the reading is stable. See Program P7.1 on page 34 for more
information.
6. Press the MODE key to toggle between conductivity, TDS and pH readings.
NOTE
: You can use the Conductivity Manual Ranging function to manually select a specific range in
which your readings will appear. See page 19 for directions.
Taking measurements with READY indicator on
If the READY indicator has been activated, the READY annunciator lights when the reading is stable *.
Switch the READY indicator on or off in SETUP program P7.1. See page 34 for directions.
Taking measurements with the auto endpoint feature selected on
When a reading is stable for more than 5 seconds, the auto endpoint feature will automatically “HOLD”
the reading. The “HOLD” indicator appears on the left side of the display. Press the HOLD key to
release the reading. Switch the Auto endpoint features on or off in SETUP program P7.1, see page 34
for instructions.
6.2.5 Using Auto and Manual Ranging Function (for conductivity
& TDS)
Auto-ranging
Your meter automatically selects the range in which your readings
appear. For example:
1. Dip the conductivity probe into a standard solution, say, 12.88 mS.
2. It will automatically select the most appropriate range, r 4, which is
0.00 to 19.99 mS.
3. The secondary display on the LCD will momentarily display r 4
before it switches to measured temperature value.
4. The primary display will show the actual conductivity value. See
Figure 20.
Figure 21: Auto-ranging feature
MEAS
199.9
µ S
ATC
°C
MEAS
1999
µ S
ATC
°C
MEAS
19.99
mS
ATC
°C
MEAS
12.88
mS
ATC
°C
25.5