PART ONE - INTRODUCTION
SECTION 1 - GENERAL INFORMATION
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
15
P A R T O N E - I N T R O D U C T I O N
S
ECTION
1
1.1 Capability Highlights
Sensor Input
MEASURE Screen
Passcode-protected
Access
Calibration Methods
Analog Outputs
The analyzer can be used with any GLI Differential Tech-
nique pH or ORP sensor, or any conventional combination
electrode. The analyzer accepts the common temperature
compensator elements used in these sensors (NTC 300
ohm thermistor, Pt 1000 RTD or Pt 100 RTD).
The MEASURE screen (normal display mode) can provide
different readouts of measured data. Measured pH (or ORP)
is always shown on the main middle line. The bottom auxil-
iary display line, shown in reverse video, can be changed
by pressing the
Ø
Ø
and
×
×
keys
to show:
•
Measured temperature (
°
C or
°
F)
•
Analog Output 1 value (mA)
•
Analog Output 2 value (mA)
For security, you can enable a passcode feature to restrict ac-
cess to configuration and calibration settings to authorized
personnel only. See PART THREE, Section 4.6 for details.
Four methods are available to calibrate the analyzer for pH.
See PART THREE, Section 5.2 for details. For ORP cali-
bration, refer to Section 5.3. Each analog output mA value
can also be calibrated (Section 5.4).
The analyzer provides two isolated analog outputs (1 and
2). Each output can be set to be 0-20 mA or 4-20 mA, and
assigned to represent one of these measurements:
•
Measured pH (or ORP)
•
Measured temperature
Parameter values can be entered to define the endpoints at
which the minimum and maximum analog output values are
desired (range expand). For analog output setup details,
refer to PART THREE, Section 4.4.
GENERAL INFORMATION
