1.0 Handling / Storage The HR is a precision electronic instrument and requires careful handling. It should be stored in a dry atmosphere away from direct sunlight. 1.1 Power Supply The HR is powered by internal rechargeable batteries, the batteries maybe charged from the mains. A 14 hour charge cycle is recommended. 1.1.1 Battery Charger Important Note : The Battery Charger is NOT waterproof, and must NOT be used in a damp environment. The battery charger is connected via a two pin lockable plug. When charging ensure the HR indicator and printer are switched off. There are NO user serviceable parts contained within the battery charger. Live parts are enclosed. In the event of a failure return the unit your dealer. 1.2 Loadcell The loadcell system is attached to the bottom of the indicator. No more than 10 Kg weight should be placed on the loadcell to avoid mechanical damage to the transducer.
1.3 LCD Contrast The contrast on the LCD display can be adjusted by varying a trimmer pot on the printed circuit board. The location of the (black) trimmer pot is shown on the diagram below : The contrast may need to be adjusted for optimum viewing angle depending on the indicator mounting position. This should only be performed by dealer.