Operation
106
Modline 5
See Section
, page 119 for possible causes of problems and
troubleshooting.
Investigate all alarms indicated by the ALARM word indicator. Temperature
readings on rear panel display, at Analog Output or from RS-485 Communications
may be inaccurate with Error Codes X101 through X109 alarms.
Ratio Temperature measurement conditions are invalid with INV and pINV alarms.
5.12.1
Summary
The initial setup procedure is complete and the Sensor should provide accurate display of the process
temperature. Auxiliary equipment connected to outputs will respond to the measured temperature.
1.
The system should measure process temperatures viewed by the Sensor. Response to changes in
temperature will depend on the Response Time, Peak Picker or Track and Hold Signal
Conditioning Functions.
2.
During start-up routines, observe measured temperature closely to insure proper measurement.
If necessary, fine-tune Sensor operating functions. Refer to Section 8
, page
129 for applications and measurement information.
3.
Allow the proper amount of time for the display to settle when making measurements. Settling
time depends on the Response Time selected. Response time also affects the analog outputs and
when the sensor is used as input to a closed loop control system consideration should be given
to the effects of response time.
4.
Investigate Alarms and Error Codes to determine if there are installation problems or Sensor
malfunctions.
5.
The Sensor rear screw on protective window must be in place during temperature measurement
to maintain the NEMA 4 (IP65) Sensor housing rating and protect the keyboard and internal parts
from contamination.
