Connecting The On-Board Thermistor - HP E1313A Manual

Connecting the On-Board Thermistor

Pry
Figure 2-11. Temperature Sensing for HP E1313 Terminal Module
46 Field Wiring
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Figures 2-11 and 2-12 show how to use the HP Scanning A/D Converter
module to make temperature measurements with or without using the
on-board thermistor. The thermistor is used for reference junction
temperature sensing for thermocouple measurements. Figure 2-11 shows
the configuration for the HP E1313 terminal module and Figure 2-12 shows
the configuration for the HP E1413 terminal module.
Under Cover
Pry at this point
REMote
Place both JM1 jumpers here to
route current source to terminals
HTI and LTI. Connect these
terminals to remote thermistor or
RTD. Sense with any sense
channel.
LOCAL
Place both JM1 jumpers here to
connect current source to
on-board thermistor RT1. Sense
RT1 by connecting any sense.
fig2-7r
Chapter 2