K319 Issue 2 EN-17
English
THERMOCOUPLE MEASUREMENTS
Scroll through the thermocouple measure menu, making the required
selections required. Press EXE to open the working screen; the
measurement reading is shown in the upper window. Resolution is
0.1 degrees for most thermocouple types.
Using compensation wires
It is strongly recommended to
use compensation wires for
thermocouple simulations and
measurements. Insert the
compensation wire lead ends
into the wire holes as indicated.
Turn hand tight each terminal
screw to fix the wires and make
the proper connections at the
instrument side. Make sure that you use the right type of wires and
that polarities are not accidentally reversed. Select INTERNAL to
compensate the cold junction microvolts automatically.
Using standard test leads (copper wires)
Turn hand tight the terminal
screws before plugging the test
leads in. Compensation in this
case is required to offset the cold
junction compensation microvolts
generated by the instrument under
calibration. For this we need to
measure the temperature at the
instrument terminals. Instrument
terminal temperatures can be
measured by either a hand held thermometer or a remote
temperature probe.
Remote temperature probe (not supplied by GE)
With a Pt100 sensor you can measure cold junction temperatures
from -200°C to 850°C (-328 ... 1562
°F). Select EXTERNAL in the
cold junction menu (CJ) and press EXE, to compensate the external
cold junction microvolts automatically. For wiring methods read the
section "TO MEASURE A RTD"
Copper wires
To Next Page
Loading...
