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V1.2 30/12/10 Page | 13 1048 Technical Manual

5. Operating Precautions

5.1. Display

The LCD display should not be exposed to strong sunlight for prolonged periods.

5.2. Usage & Storage

Temperature

Operating: -10 to +50 degC (14 to 120 degF)

Storage: -30 to +70 degC (-22 to 160 degF)

Humidity

The operating and storage relative humidity limits are 10 to 90%

non-condensing at 25 deg C (77 deg F)

5.3. Automatic power down disable

If the unit is not operated for 15 minutes it will automatically power down to conserve the

battery life.

This feature can be inhibited by pressing the INC button when switching on the unit. It

should be noted that the operation is indicated by flashing the decimal point at the switch on

time.

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Time-electronics 1048 Voltage-Current-Loop Calibrator Manuale Utente Pagina 13