57
SUGGESTED INSTALLATIONS
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
SHORT DISTANCE, INDOOR INSTALLATION
Due to the low current involved, a very high
grade of insulation is required.
A dry environment is needed in order to ob-
tain a level of insulation not lower than 10
12
Ω
.
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
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 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 trans-
mitter 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
pH-ORP METER