PART THREE - OPERATION
SECTION 4 - ANALYZER CONFIGURATION
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
50
4.5 Configuring Analog
Outputs (1 and 2)
☞
SET PARAMETER
(representation)
The analyzer provides two isolated analog outputs (1 and
2). During calibration, the analog outputs can be held,
transferred to a preset mA value or remain active. During
normal measurement operation, the analog outputs can be
held at their last measured values:
•
For up to 30 minutes by selecting the “HOLD
OUTPUTS” line in the TEST/MAINT menu and
pressing the
ENTER key
.
•
For an indefinite period by locally or remotely
connecting the TTL input Terminals 9 and 10 on TB1.
If a TEST/MAIN hold is applied in addition to a TTL hold,
both “holds” must be removed before the analog outputs
return to active status. If the outputs are set to XFER or
ACTIVE during calibration, they remain in that state re-
gardless of the connection status at the TTL input terminals.
NOTE:
When using the HART communication option, a
digital signal is encoded onto the 4-20 mA analog
Output 1 signal. In a HART SINGLE MODE wiring
configuration, Output 1 remains available for normal
use. However, in a HART MULTI-DROP wiring con-
figuration, Output 1 becomes dedicated to that
function and cannot be used. See PART THREE,
Section 8 for more HART communication informa-
tion.
These instructions configure Output 1. Configure Out-
put 2 in the same way using its respective menu
screens.
Depending on the system setup, each output can be as-
signed to represent one of these measurements:
•
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,
% passage, 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.
