PART ONE - INTRODUCTION
SECTION 1 - GENERAL INFORMATION
PRO-series Model E3 Electrodeless Conductivity Transmitter
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 Output
The transmitter can be used with any GLI Model 3700E-series
electrodeless conductivity sensor. These sensors have a
built-in Pt 1000 RTD temperature compensator element.
The MEASURE screen (normal display mode) can provide
different readouts of measured data. With the MEASURE
screen displayed, press
Õ
Õ
or
Ö
Ö
key
to show:
•
Measured conductivity, % concentration or TDS
•
Measured temperature (
°
C or
°
F)
•
Measured conductivity, % concentration or TDS and temperature
•
Measured analog output value (mA)
•
Uncompensated conductivity corresponding to concentration read-
out (only shown when transmitter is set to measure concentration)
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 3.5 for details.
Because each sensor has a unique zero point and span,
always ZERO the sensor in air when calibrating it for the
first time (PART THREE, Section 4.2). Depending on the
configured measurement (conductivity, % concentration or
TDS), different methods are available for calibrating sensor
span (see Section 4.3, 4.4 or 4.5 respectively). The analog
output loop can also be calibrated (Section 4.6).
The transmitter’s isolated 4-20 mA analog output can be
assigned to represent one of these:
•
Measured conductivity, % concentration or TDS
•
Measured temperature.
Parameter values can be entered to define the endpoints at
which the 4 mA and 20 mA analog output values are de-
sired (range expand). For analog output setup details, see
PART THREE, Section 3.4.
GENERAL INFORMATION
