Supplement For Intrinsically Safe Calibrator Trx-Ii Is - GE Druck TRX-II User Manual

SUPPLEMENT FOR INTRINSICALLY SAFE
CALIBRATOR TRX-II iS
Instructions for use
Model TRX-II iS marked with label "Ex" has been built in accordance
with European Norm II 2 (1) G EEx-ia IIC T5 and may be used in IEC
defined zones 0,1 and 2.
Special precautions for use in hazardous areas
1. Do not connect the output terminals to external powered circuits
when calibrator sources Volts or milliamps.
2. Make sure that the parameters of both the calibrator and the
instrument match.
3. Do not exceed parameters nameplate data.
4. Do not open battery enclosure in a potentially explosive
atmosphere.
5. Do not charge or attempt to charge the batteries.
6. Do not use the serial port.
7. Do not open the calibrator housing when an explosive gas
atmosphere may be present.
Recharging the batteries
Use the charger supplied as standard only. Switch the calibrator
"OFF" before connecting the charger. Recharging time period is
16 hours from empty to full charge. Occasional charging over more
than 16 hours is permitted. Charging current is set at 75 mA.
Battery maintenance
Do not store the calibrator with discharged or partial discharged
batteries. Always recharge the batteries after you have finished your
job. The batteries are fully charged at 7.2 Volt (NiMH) batteries are
nearly discharged at 6.8 Volt. Voltage can be checked if you select
"BATTERY" in the calibrator "MEASURE" menu. If batteries can not
be fully recharged, discharge the batteries by transmitting 20 mA and
recharge again and repeat this procedure one more time. If this does
not give satisfactory results, replace the battery pack.
Battery pack replacement
The batteries are a part of the instrument housing. Order assy.#208
for replacement parts. Open the calibrator (ONLY IN SAFE AREAS)
by releasing all visible hexagon screws at the back and inside the
battery compartment. Lift gently the housing lower half off and
disconnect the cable with the white plug. Proceed reverse to install
the new pack. Battery pack replacement must be carried out by
qualified technicians only. Ask your distributor. No recalibration is
required.
EN-36 K319 Issue 2