Sensorex C110 Product Instruction Sheet

C110 pH/mV Checker/Simulator
Product Instructions

Introduction

The C110 pH/mV checker simulator is a millivolt
source that can be used to calibrate or check the
calibration of a pH or ORP (mV) meter. It also serves
as a troubleshooting toll when pH or ORP systems
fail. For troubleshooting, the electrode is removed
and the simulator is connected in its place. The
C110 sends a signal to the meter to verify the per-
formance of the meter. Signals of pH4, pH7 and
pH10 are available, as well as +/-700mV for ORP. A
properly working meter (by process of elimination)
indicates that the electrode may be the cause of the
failure.

Calibration Procedure

1. Plug the BNC connector of the black cable or other cable
(CX2) into the top of the C110 at the BNR connector. (see
FIG 1)
2. Disconnect the pH or ORP electrode from the meter.
3. Connect the C110 to the meter in the same way the elec-
trode was connected. (see FIG 2.)
4. Turn on the C110 by pressing the desired pH or mV button
5. Press the "HIGH Ω" button to simulate pH electrode resis-
tance load (the C110 has 1000 M Ω load). See FIG 3. Note:
ORP does not require "HIGH Ω" button to be pressed since
ORP electrode have low output impedance.
6. At this time it is best to follow the pH or ORP electrode cali-
bration instructions in the manufacturer's manual.
The following instructions are given as general guidelines
for either microprocessor or manual adjust pH meters.
Parts covered by this product data sheet include:
C110
Page 1 of 2
PRODuCT INSTRuCTION SHeeT
FIG. 1
HI _
+
mV mV
pH pH pH
4 10
7
o
LO BAT
MODEL C110
pH/ORP SIMULATOR
FIG. 3
_
HI
+
mV mV
pH
pH pH
10
7 4
o
LO BAT
MODEL C110
pH/ORP SIMULATOR
FIG. 2
_
HI
+
mV mV
HI
pH pH
pH
4 10
7
o
LO BAT
choose
MODEL C110
pH
pH/ORP SIMULATOR
pH
C
ATC
pH Meter
FORM: InstrC110 [Rev: 2011-06-27]
©2011 Sensorex Corporation