Hanna Instruments hi 931700 User Manual

AmpHel

electrodes have a micro-amplifier

in the electrode cap to boost the signal,
drastically reducing susceptibility to noise
and drift.

With all of the components sealed in the
electrode body, moisture up to 100% RH
will not effect the signal.

pH METER

WITH AN AmpHel

ELECTRODE

MEASUREMENTS CAN BE

TAKEN FROM DISTANCES UP TO

50 METERS (165 FEET)

WET ENVIRONMENT

RELATIVE HUMIDITY UP TO 100%

MAXIMUM 50 METERS

AmpHel

is a registered Trademark of "Hanna Instruments"

SUGGESTED INSTALLATIONS

SHORT DISTANCE, INDOOR INSTALLA-
TION

Due to the high impedance of the pH and
ORP electrode's glass membrane (usually
more than 100 M

), a very high grade of

insulation is required.

A dry environment is needed in order to
obtain a level of insulation not lower than
10

This type of connection is very delicate and
requires constant attention to maintain proper
operating conditions.

The conventional electrodes should be used
in indoor applications only, and should not
use a cable longer than 10 m (33').

MEDIUM DISTANCE,
INDOOR/OUTDOOR INSTALLATION

Since the introduction of AmpHel

these dis-

tances are no longer a problem. You are
now able to connect your meter directly to
an AmpHel

electrode, saving the cost of a

transmitter or costly coaxial cable.

The standard cable length of the AmpHel

electrode is 5 m (16.5'). Additional lengths
of regular cable up to 50 m (165'), can be
installed without special connectors.

pH METER

WITH CONVENTIONAL ELECTRODES

MEASUREMENTS CAN BE

TAKEN FROM DISTANCES UP TO

10 METERS (33 FEET)

DRY ENVIRONMENT

LESS THAN 80%

RELATIVE HUMIDITY

MAXIMUM 10 METERS

AmpHel

is a registered Trademark of "Hanna Instruments"