Rev. 6-1100
Model P33 pH/ORP Analyzer (panel-mount 1/4 DIN)
5
CONDENSED OPERATING INSTRUCTIONS
This manual contains details for all operating aspects of the instrument. The following con-
densed instructions are provided to assist you in getting the instrument started up and
operating as quickly as possible.
These condensed instructions only pertain to basic pH
measurement operation using a GLI Differential pH sensor.
To measure ORP, or use a
conventional combination electrode or specific features of the instrument, refer to the appro-
priate sections in this manual for instructions.
A. CONNECTING SENSOR/CONFIGURING SENSOR TYPE AND TEMPERATURE ELEMENT
1.
After properly mounting the analyzer (PART TWO, Section 2), connect the GLI 5-wire
Differential Technique pH sensor, matching wire colors to terminals as indicated:
Sensor Wire Colors
Connect to SENSOR Terminal
Yellow
#4 on TB3
Shield
#5 on TB3
Black
#6 on TB3
White
#7 on TB3
Green
#8 on TB3
Red
#1 on TB4
2.
The analyzer is supplied factory-set for use with the GLI 5-wire Differential Technique
pH sensor. When using a conventional combination electrode, you must change the
sensor type (see PART THREE, Section 3.2, subheading “SELECT SENSOR Type”).
3.
The analyzer is supplied factory-set for automatic temperature compensation using the
NTC 300 ohm temperature element built into all GLI Differential sensors (except Model
6006P4-2000 high purity water pH sensor systems which use Pt1000 ohm RTD).
When using a sensor with a different temperature element, or if you want fixed
MANUAL temperature compensation, you must change the temperature element type
(see PART THREE, Section 3.2, subheading “Select TEMP ELEMENT Type”).
B. CONNECTING LINE POWER
Important:
Follow instructions in PART TWO, Section 3.6 to connect line power to the analyzer.
C. CONFIGURING BUFFER TYPE/CALIBRATING THE ANALYZER
The analyzer must be calibrated so that measured values will correspond to actual process
values. Before calibrating for the first time, select the buffer value set that will be used.
Then, calibrate using the recommended “2 POINT BUFFER” method which will provide the
most accurate pH measurements.
1.
The analyzer is supplied factory-set for the common 4.00, 7.00, and 10.00 pH buffers.
When using DIN 19267 standard value buffers you must change the buffer set (see
PART THREE, Section 3.2, subheading “SELECT BUFFER Set”).
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