PRODUCT INSTRUCTION SHEET
Page 5 of 8
Intermittent Operation
Some facilities are only operated part of the time. When out
of operation, electrodes must not be allowed to be exposed
to air and become dry. Electrodes should be removed from
such systems and stored in their bottles or caps or in a beaker
filled, preferably, with pH 4.0 Buffer. In some instances, power
to the meter is shut off; this condition can be harmful to elec-
trodes. Electrodes should be disconnected from un-powered
meters.
Electrode Wiring
See the figures 10 through 17 to find wiring for your particu-
lar pH or ORP controller or transmitter.
Figures 10-17 apply
to SD7000CD and SD7000CD-ORP sensors only.
If you don't
see a wiring diagram for your make and model number of
controller, please contact Sensorex Technical support at tech-
[email protected] or call 714-895-4344.
Figure 18 is wiring for the SD7420CD & SD7420CD-ORP sen-
sors. These sensors are loop powered 4-20mA. 12-30V DC
power is required (>24V DC is recommended).
Figure 19 is wiring for SD7500CD & SD7500CD-ORP sensors.
These sensors DO NOT REQUIRE POWER. Do not connect to
power. These are self-powered.
Aquametrix
Shark
Controller
Aquametrix
Shark
TX/P
Transmitter
FIG. 10
FIG. 11
GLI PRO P3
FIG. 12
Form: InstructSD7000CD-06 [Rev: 2016-10-10]
