3. METER MODE OPERATION (Thermocouples)
Set-Up:
1. Turn on instrument by depressing the ON/OFF key.
2. Check that the BAT annunciator turns off following the power-up LCD test.
If it does not turn off, less than 10% of battery remains. Refer to Battery
Installation/Replacement instructions.
3. If the meter is already in the METER mode, the METER annunciator will
be on. Otherwise the calibrator mode is enabled and the CALIB annunci-
ator is on. Depress the METER key to return to meter mode.
4. Connect an input thermocouple (TC) to connector T2. Select the appro-
priate TC Type with the select-key. A display annunciator will indicate the
selected TC-type.
NOTE: Space and legibility constraints on the display preclude
the use of dedicated annunciators for the less common tungsten-
rhenium thermocouple types (G, C & D). Instead, these types are
annunciated momentarily on the alpha-numeric display when first
selected. Both T and R annunciators remain on to indicate a
Tungsten-Rhenium selection. To recall the actual G, C, D selec-
tion, turn the unit off, then on again for another momentary read-
out.
5. Select temperature scale with °F/°C key. The corresponding annunciator
is enabled.
6. Select display resolution with 0.0.1 key.
NOTE: Set-up is retained during power-off.
Hold:
Meter readings can be put on hold at any time by depressing the HOLD key.
At this time, the HOLD annunciator turns on, the reading is frozen, and all
keys (except ON/OFF and HOLD) are locked out. Depress the HOLD key
again to return to real-time readings, and re-enable the keypad.
4. METER MODE OPERATION (RTD, Thermistor & Ohms)
Set-Up:
1. Connect a sensor or unknown resistance to the instrument as shown in
Figures 4, 5, or 6.
The 2-wire configuration is simplest, but includes lead-wire resistance in
the measurement. 2-wire measurements are generally limited to high
resistance sensors (e.g. 1000-ohm RTDs, 2252-ohm thermistors).
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