User Guide

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CONDUCTIVITY PROBECONDUCTIVITY PROBE

CONDUCTIVITY PROBE

MAINTENANCE & CLEANINGMAINTENANCE & CLEANING

MAINTENANCE & CLEANING

MEDIUM DISTANCE, INDOOR/OUTDOOR

INSTALLATION

When an outdoor installation is required, it is necessary to install a

transmitter to obtain accurate readings at distances from 10 to 50 m

(33-165').

Since the introduction of AmpHel

these distances are no longer a

problem. You can now connect your meter directly to an AmpHel

electrode, saving the cost of a transmitter.

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. Coaxial cables are always pre-

ferred over normal cables due to their excellent insulation, even

though, Amphel

electrodes can operate with both.

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

pH-ORP METER

pH CALIBRATION SOLUTIONS

HI 7004M pH 4.01 buffer solution, 230 mL

HI 7004L pH 4.01 buffer solution, 460 mL

HI 7006M pH 6.86 buffer solution, 230 mL

HI 7006L pH 6.86 buffer solution, 460 mL

HI 7007M pH 7.01 buffer solution, 230 mL

HI 7007L pH 7.01 buffer solution, 460 mL

HI 7009M pH 9.18 buffer solution, 230 mL

HI 7009L pH 9.18 buffer solution, 460 mL

HI 7010M pH 10.01 buffer solution, 230mL

HI 7010L pH 10.01 buffer solution, 460 mL

ORP SOLUTIONS

HI 7020M 200-275mV ORP solution, 230 mL

HI 7020L 200-275mV ORP solution, 460 mL

HI 7091M Pretreatment reducing sol., 230 mL

HI 7091L Pretreatment reducing sol., 460 mL

HI 7092M Pretreatment oxidizing sol., 230 mL

HI 7092L Pretreatment oxidizing sol., 460 mL

ACCESSORIESACCESSORIES

ACCESSORIES

The probe can be compensated for normal contamination by a process

of re-calibration. However, it is recommended that the process conduc-

tivity probe be removed from the system regularly for maintenance.

Rinse the HI 7637

probe with tap water. If a more thorough

cleaning is desired, unscrew the PVC sleeve and clean the sensors with

a non-abrasive cloth and alcohol. When reinstalling the PVC sleeve

onto the probe, be sure that the holes are towards the top of the

probe (the end with the cable).

After cleaning, re-calibrate the instrument. However, if the instrument

will not re-calibrate, replace the probe.

Note: Always re-calibrate the meter after the replacement of the

probe.

AmpHel

is a registered Trademark of "Hanna Instruments"