Psion Teklogix 7535 G2 Manual de usuario descargar pdf (Pagina 226)

Chapter 6: Peripheral Devices & Accessories

Powered Cradle Installation

196 Psion Teklogix 7535 G2 Hand-Held Computer User Manual

6.11.6 Powered Cradle Installation

The powered cradle option is designed to allow the 7535 G2 to be powered by a vehicle bat-

tery. The battery installed in the 7535 G2 is also recharged by the vehicle battery. This

option accepts DC power sources over the range 12V to 80V.

The 7535 G2 picker cradle can be ordered with the powered cradle option installed, or it can

be retrofitted later at an authorized Psion Teklogix service depot.

The 7535 G2 charging LED (see “Charge LED” on page 53) indicates that external power is

available, and it also indicates the charging status of the internal battery.

The metal chassis of the picker cradle must be connected directly to the chassis of the vehi-

cle. A safety ground lug (clearly labelled on the rear of the cradle chassis) is provided for

this purpose. The grounding strap must connect from the ground stud on the picker cradle to

a solid, reliable contact point on the main portion of the vehicle chassis. It must not be con-

nected to battery negative or a terminal block. This grounding strap ensures that if there is a

fault in the vehicle wiring or in the picker cradle power module, the picker cradle cannot be

at a hazardous voltage with respect to the vehicle chassis.

Connection between the picker cradle ground lug and the vehicle chassis should be done

with a 16 gauge ground strap (ground wire). Connect the ground strap to the picker cradle

utilizing the ground lug hardware supplied with the picker cradle and a #10 heavy duty wire

crimp ring terminal. Torque the ground lug hardware to 23.0 +/- 2.0 in-lbs. Connect the

other end of the ground strap to a solid, reliable point on the main portion of the vehicle

chassis, ensuring a solid electrical connection.

As with other vehicle cables, the routing of the ground strap should be carefully considered

to ensure it does not pose a hazard to the operator or the safe operation of the vehicle. If nec-

essary, secure the ground strap with cable ties or some other mechanical means to prevent

loops or loose lengths of wire that could catch on stationary items when the vehicle is

in motion.

Warning: Applying a voltage above 90VDC or reversing polarity may result in perma-

nent damage to the cradle power option and will void the product warranty.

TO AVOID ELECTRIC SHOCK when the powered cradle option is

installed, always ensure

that the rear panel ground lug on the picker cradle is

connected to the vehicle chassis. Failure to do this could result in serious

injury or death.

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Psion Teklogix 7535 G2 Manual de usuario Pagina 226