10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110 • [email protected]
12
GENERAL INFORMATION
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 annunciator is on. Depress the
METER key to return to meter mode.
4. Connect an input thermocouple (TC) to connector T2. Select the appropriate 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 selection, turn the unit off, then
on again for another momentary readout.
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).
Lead resistance errors are compensated for in 3-wire configurations. However, full
compensation requires equal resistance in each lead. This configuration is common with 100-
ohm RTDs.