User Guide

OPERATIONAL GUIDE
ORP electrode CONNECTION
The BNC connector is protected
against vapors and humidity by a wa-
terproof sheath.
• Slide the protective sheath down.
Connect the HI3214P/2 ORP elec-
trode to the BNC connector and
then slide up. Make sure the con-
nector is completely covered.
• Do not be alarmed if white crystals appear around the
electrode protective cap. This is normal with ORP elec-
trodes and they dissolve when rinsed with water.
• When not in use, rinse the electrode with water to mini-
HI 982401 ORP
Range ±999 mV
Resolution 1 mV
Accuracy (@20°C/68°F) ±5 mV
Typical EMC Deviation ±5 mV
Setpoint Selectable from 350 to 850 mV
Alarm LED blinks when the measured
ORP value is lower than the setpoint
Calibration Factory calibrated
Probe HI
3214P/2 interchangeable ORP electrode
(optional)
Casing IP54
Power supply External 12 VDC (included)
Dimensions 86 x 94 x 33 mm (3.4 x 3.7 x 1.3”)
Weight 150 g (5.3 oz.)
SPECIFICATIONS
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P
R
mize contamination and store it with a few drops of HI70300
storage solution in the protective cap. Always replace the
protective cap after use.
DO NOT USE DISTILLED OR DEIONIZED WATER FOR
STORAGE PURPOSES.
• If the electrode has been left dry, soak the tip in HI70300
storage solution for at least one hour to reactivate it.
Taking ORP Measurements
• Turn the meter on.
• Remove the protective cap from the
ORP electrode and immerse the tip
(4 cm/1½”) in the sample.
• The LCD will show the ORP value
measured in mV unit. Allow the read-
ing to stabilize and HI982401 will start
continuous monitoring.
Note: to prevent damages to the meter,
remove the ORP electrode from the
sample before turning the meter
off.
Adjusting the Setpoint
• Unscrew the 4 screws on the
meter back, remove the rear
panel and the seal gasket to
access the MEASURE/SET
switch and the setpoint adjust-
ment trimmer.
• Move the switch to the left (SET
position).
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