PART ONE - INTRODUCTION
SECTION 1 - GENERAL INFORMATION
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
16
Analog Outputs
Relays
☞
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 the following:
•
Measured Sensor A conductivity, resistivity or TDS.
•
Measured Sensor A temperature.
•
Measured Sensor B conductivity, resistivity or TDS.
•
Measured Sensor B temperature.
•
*Calculated Sensor A and B measurement (% reject,
% pass, ratio A/B, ratio B/A, diff. A-B, or diff. B-A).
*An analog output can only represent the calculated measurement when
two sensors are used and the analyzer has been correctly configured for
CALCULATION.
Parameter (or calculated measurement) values can be en-
tered to define the endpoints at which the minimum and
maximum analog output values are desired (range expand).
For analog output setup details, see PART THREE, Section
4.5.
During calibration, both analog outputs can be selected to:
•
Hold their present values (HOLD OUTPUTS)
•
Transfer to preset values to operate control elements by an
amount corresponding to those values (XFER OUTPUTS)
•
Remain active to respond to the measured value
(ACTIVE OUTPUTS).
The analyzer may have up to four electromechanical relays,
all with SPDT contacts. Each relay can be set to function as
a CONTROL, ALARM or STATUS relay. CONTROL and
ALARM relays can be assigned to be driven by one of these:
•
Measured Sensor A conductivity, resistivity or TDS.
•
Measured Sensor A temperature.
•
Measured Sensor B conductivity, resistivity or TDS.
•
Measured Sensor B temperature.
•
*Calculated Sensor A and B measurement (% reject,
% pass, ratio A/B, ratio B/A, diff. A-B, or diff. B-A).
*A relay can only be driven by the calculated measurement when two sensors
are used and the analyzer has been correctly configured for CALCULATION.
NOTE:
When a relay is set to function as a STATUS relay,
it is no longer configurable. Instead, it becomes a
