GR-250 Hand Held Reader User Manual Introduction try plugging The GR-250 Hand Held Reader is designed to read Trovan RFID (radio frequency identification) transponders. Prior to first use, you should fully charge the battery. Remove the dust cap from the circular connector at the rear of the reader, attach the battery chargers connector to the reader, and plug the battery charger into an electrical outlet. The red LED will light to indicate charging is in progress. If the red LED doesnt light, check your power source and the battery charger into a different outlet. The charger has an internal timer that will automatically shut off the charging process after approximately 14 hours and begin trickle charging the battery. At that time, the red LED will also turn off to indicate that the charging cycle is complete and will blink periodically to indicate trickle charging. Once your reader is fully charged, unplug the charger from the outlet, disconnect the reader from the charger, and replace the dust cap. Your reader is now ready for use. A fully charged reader will read approximately 3,000 transponders (average scan time of 1-2 seconds) before the battery needs to be recharged. To ensure maximum reading performance, the reader should be charged once a week, even if 3,000 scans havent been performed. If the reader hasnt been used for about a month, the battery may be low. Therefore, it is recommended the reader be charged at least once a month, even if stored. The hole in the rear of the handle can be used to fasten a lanyard or wrist strap to the reader. Reading a Transponder To read a transponder, depress the trigger and bring the front face of the reader into close proximity of the transponder to be scanned. The red LED will flash rapidly, indicating that reading is in process. The LCD will display READING READING ..... S 07/25/05 13:47 If a transponder is detected, the green LED will illuminate and a capture tone will sound. The transponders ten hexadecimal digit (i.e., 0-9, A-F) ID number will remain on the LCD while the trigger is depressed. Once the trigger is no longer depressed, the ID number will be displayed for about 30 seconds before it disappears from the LCD. To initiate another reading, simply depress the trigger button again. ID# 12-3456-789A Replacing the Battery Under normal use and recharging, the battery will provide years of service. To replace the battery, remove the battery compartment cover on the bottom of the reader by loosening the two screws (but do not remove the screws from the cover), unsnap the CAUTION: DO NOT replace the 12 volt battery with a 9 volt battery. The reader will not operate with a 9 volt battery. an authorized 12 volt replacement, NOT a 9 volt battery. battery connector, and attach it to the new battery. The battery is a 12 volt nickel metal hydride (NiMH) battery. Although the battery connector is the same as a typical 9 volt battery, it is vital that you replace the battery with Advanced Reader Functions Note: An optional interface cable must be purchased to connect the reader to a computer via the RS-232 interface. The GR-250 Hand Held Reader has additional capabilities which are implemented via its RS-
232 interface. Up to 3,072 transponder ID number readings, automatically stamped with date & time, can be stored in memory. Also, the following parameters can be set via the RS-
232 interface:
Date, time, and day of the week Communications parameters (BAUD rate, etc.) Hexadecimal (default) or decimal display mode Save and Seek modes Troubleshooting The Reader Doesnt Read Symptoms: When the trigger is depressed, the red & green LEDs do not illuminate, and the LCD is blank. There is no response from the reader. Response: Recharge or replace battery. The reader will not operate until the battery is recharged or replaced with a fully charged 12 volt battery. The Reader Displays an Error Message on the LCD
* Low Battery *
Please RECHARGE The battery voltage is below approximately 11.8 volts and must be recharged or replaced immediately. The reader will not function until the battery is either recharged or replaced with a fully charged battery.
**Transmitter**
Fault => SERVICE The reader has experienced a hardware fault and must be returned for repair. The real time clocks lithium battery must be replaced or unpredictable reader operation may occur. The reader must be returned for repair. SERVICEReplace Lithium Battery Technical Specifications Dimensions:
Length: 11 3/4 inches (30 cm) Width: 7 1/8 inches (18 cm) Height: 4 1/8 inches (10.5 cm) Weight: 2.85 pounds (1.3 kg) with battery pack Display: LCD (2 lines x 16 characters) Red LED Flashes to indicate reading in process Green LED Illuminates when transponder is read Memory Storage Capacity: 3,072 readings with date & time Computer Interface: RS-232, 9600 BAUD (default BAUD rate) Power: 12 volt rechargeable NiMH battery Environmental: Water, salt air, & weather resistant Caution: Changes or modifications not expressly approved by the party responsible for FCC compliance could void the users authority to operate this equipment. U.S. Patents 5,012,236, 5,095,309 and 5,198,807 032905