Omega Multifunction Indicator-Simulator Power Supply, Rechargeable batteries, Battery Charger

8 POWER SUPPLY

8.1Rechargeable batteries

The CL526 portable calibrator is powered by four built-in rechargeable batteries. The instrument is shipped with an average level of charge. After unpacking, a full charge of the batteries is recommended; connect the instrument to the charger module (“OFF” condition) for a period of 10 hours minimum.

The Ni-MH rechargeable batteries do not suffer when used in cyclic operations.

Cyclic operation is understood as a method of operation by which the battery is continually charged and discharged. Note that a battery, at its lower limit of discharge, risks a non uniform cell polarization: this condition makes it difficult to recharge with the charger supplied.

Avoid leaving the instrument, with batteries totally or partially discharged, for a long time without recharging.

To charge the batteries use only the original supplied charging module. The module incorporates protection and current limiting devices not normally found in other commercial chargers.

•When the CL526 is connected to the battery charger module, by pressing keys <SHIFT> + <BATTERY> the following indication will be displayed:

Battery: Line Op

If a numeric value appears, it indicates that the charger is probably faulty.

Replace the battery charger module; if the indication persists, contact OMEGA -Technical Assistance Dept.

WARNING:

AVOID USING ALKALINE BATTERIES ON AN INSTRUMENT SET FOR NI-MHRECHARGEABLE BATTERIES.

THIS IS EXTREMELY DANGEROUS AS IT COULD CAUSE THE ALKALINE BATTERIES TO EXPLODE.

8.2Battery Charger

The external battery charger is configured, before shipment, for a supply voltage of 110-120 Vac or 220- 240 Vac, upon order specification. The nominal voltage value is indicated on the front label of the charger. Check for the correct input voltage before connect it to the line.

8.3How to maximize the battery life

Disconnect the ac mains supply when the battery is charged. Use the battery until it is completely discharged. Leaving the ac mains supply plugged in will decrease the life of the battery.

Keeping the battery terminal clean will help maximize the operating time. Periodically wipe the positive and negative terminals with a dry cloth.

Removing and replacing the batteries will ensure electrical contact. This should be done when using a battery that has not been used for a long time.

Note that the operating time decreases at low temperatures.

A Ni-MH battery can be recharged about 500 times when used with the recommended instructions. When replacing the Ni-MH batteries with a new set always replace simultaneously the four pieces.

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