Instrumentation
Testers and Calibrators
Sensor testing device ME 5 for tank servicing Sensor testing device GPR 5 for tank servicing
Ex-approved sensor testing device This sensor testing device features a
with intrinsically safe GWG circuit for microprocessor program for real
real function checks of all sensor function checks of all sensor 
approved according to TRbF 511, approved according to TRbF 511 for 
also for GWG units which are installed use in fuel oil and diesel.
in hazardous areas zone 0. The entire It is identical to ME 5 in functionality,
characteristic of the PTC thermistor is but it is not suitable for sensor in
checked via a microprocessor hazardous areas zone 0.
program.
Sensor testing device GPR 4 for tank servicing Condensate water tester KWT 5
This simple sensor testing device is Condensate water testing device
suitable for use at storage tanks for (conductivity principle) for checking
fuel oils and diesel fuels. It is not fuel oil and diesel fuel tanks. The
permitted for use in hazardous areas probe is lowered onto the floor of the
and not for sesors which are installed tank. The presence of condensate
in tanks with hazardous media. water is indicated by a lamp. 
A signal light indicates function or Battery-operated.
error.