Omega 27, 25, 26, 24 manual Hold, Meter Mode Operation RTD, Thermistor & Ohms Set-Up

6.Select display resolution with 0.1°/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).

Figure 4. 2-Wire Resistance Measurement

Figure 5. 3-Wire Resistance Measurement

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