The Reference Radiometer RRM is designed to check and recalibrate duty sensors for water sterilisation systems according DVGW and ÖNORM. This mobile radiometer consists of a handheld unit with sensor type selection switch and two sensor heads.
The sensors are built according to DVGW W294-3 and ÖNORM M5873.
They are identical in construction with the duty sensors.
The radiometer is calibrated to microbicidal weighted irradiance at λ = 254 nm against a PTB traceable standard. Medium pressure calibration can be done on request.
Range: 20 / 200 / 2,000 / 20,000 W/m2 selectable with rotary switch
Display: 3 ½ digits
Hold function: to be activated with main switch at left side of case (off - on - hold)
Battery powered: 9V type 6F22 or similar