Fluke Biomedical 8000 Victoreen - Manual (Page 49)

2
Operation
Modes of Operation
2-37
(HVL) Exposure Rate
To make HVL determination using exposure rate measurements
Make sure that the NERO mAx is turned off. Plug one end of the NERO mAx’s detector cable into the
NERO mAx detector. Plug the other end of the detector cable into the NERO mAx’s detector connector.
No filter card is required for exposure or rate measurements. If using an external ion chamber, plug the
ion chamber’s BNC connector into the ion chamber signal input at the rear of the NERO mAx detector.
Plug the chamber’s bias plug (banana jack) into the bias output at the rear of the NERO mAx detector.
Position the ion chamber as needed. If using the NERO mAx’s internal ion chamber, position the NERO
mAx detector as needed.
WARNING
An electric shock hazard exists between the ion
chamber bias connector and ground.
If results are to be printed, plug the printer cable into the printer port at the rear of the NERO mAx then
plug the other end of the printer cable into the printer and turn the printer on (see Section 1.5--Printing).
Plug the AC adapter into the NERO mAx if needed (see Section 1.4--Battery Operation and Charging)
and turn the instrument on.
HVL
EXP CT
CT EXP MAMMO
AMSE FLUORO
FLUORO R/F RATE LOW
MAMMO INTERN INTEG HIGH
MODE CHAMBER MODE SENS
Select HVL mode, the ion chamber to be used, rate mode, high or low sensitivity, then press the ENTER
key.
0.0
R/min
Please Wait…
HVL INTERN RATE LOW
MODE CHAMBER MODE SENS
Please wait while the NERO mAx prepares to take an exposure. If the NERO mAx detects a fault
condition such as a high offset, an error message is displayed and the user must correct the error to
continue (see Section 4.3--Error Messages-- for more information). When the NERO mAx is ready to
take an exposure it will beep and prompt for an exposure.
9.8
R/min
MAKE EXPOSURE # 01
HVL INTERN RATE LOW
MODE CHAMBER MODE SENS
Turn the x-ray beam on with no filtration in the beam.