Operation - Amprobe WT-30 Bedienungshandbuch

OPERATION

1. Remove the electrode cover to expose the
electrode out.
2. Press "POWER" to power on. LCD will display
parameters (ex: tnr, rAn) in turns and then enter
normal display.
3. The meter is default in auto-ranging status.
Press "p" key more than 2 seconds can manually
select the range when the meter is in normal
measurement mode.
4. Rinse the probe with deionized or distilled water
before use to remove any impurities adhering
to the electrode. Soak the probe more than 30
minutes to clear up the lazy effect of probe if the
meter is stored for a long time.
5. Dip the probe into the sample container. Make
sure no air bubbles trapped in the slot of the
probe. To remove air bubbles, give the probe
a gentle stir. Making sure the electrode tip is
submerged when you stir it.
6. Stir the probe gently in the sample to create a
homogenous sample. Allow a few seconds to reach
temp. equilibrium. Wait about 15 minutes can get
a stable reading.
7. "ppt" will flash on the LCD to indicate the meter is
in measurement mode. When the reading is stable,
"ppt" will stop flashing.(Fig1)
8. Press "HLD" to freeze display. "Hold" will appear
on the LCD. (Fig.2) Press "HLD" again to release.
9. Turn off the meter by pressing "POWER"key
3