6. CALIBRATOR MODE OPERATION (Thermocouples)
Set-Up:
1. Turn on the instrument by depressing the ON/OFF key.
2. Check that the BAT annunciator turns off after display check. If not, refer
to Battery Installation/Replacement instructions.
3. When operating as a calibrator, the display indicates CALIB. Should the
instrument be in the METER mode, hit the CALIB key to change to the cal-
ibrator function.
4. Select the thermocouple type that will be used.
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 the desired temperature scale (°F/°C key).
6. Select the resolution desired (0.0.1 key).
NOTE: With 1° resolution, one less key stroke will be required to
enter calibrator output temperatures via the keypad.
7. The unit accepts numeric inputs by first changing the keypad to its num-
ber-entry mode (NUM) by depressing the CHANGE/ENTER key once.
The numeric display will flash, the OPR annunciator will turn off, and the
NUM annunciator will turn on. Key in desired temperature value, most sig-
nificant digit first. After the desired temperature value is keyed in, hit
CHANGE/ENTER to return to OPR mode.
To enter a value of 212° with 0.1° resolution, the following keystrokes are
used:
CHANGE/ENTER, 2, 1, 2, 0, CHANGE/ENTER
NOTES:
• Invalid numeric entries (eg. a temperature beyond the span of
the selected TC type) will cause a corresponding error code to
be displayed.
• To enter negative (ie. minus) temperatures, hit the -0 key first
when in the NUM mode. The first hit on this key enters the neg-
ative sign. Subsequent hits enter zeros.
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