Fluke Biomedical 8000 Victoreen - Manual (Page 52)

Victoreen 8000
Operators Manual
2-40
5.1
R/min
HVL 3.50
mmAl
MAKE EXPOSURE # 03
HVL INTERN RATE LOW
MODE CHAMBER MODE SENS
The NERO mAx is now ready to take the next exposure. The NERO mAx stays in this measurement loop
until ten exposures have been made or the mode key is pressed, which exits to the mode selection
screen.
As a power saving feature, the NERO mAx’s display backlight turns off after one minute of no activity.
The backlight turns back on when any button is pressed or an exposure is made. In addition, after five
minutes of no activity, the NERO mAx exits from any measurement mode and returns to the mode
selection screen.
To make HVL determination using CT exposure 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. Plug the CT chamber’s BNC connector into
the ion chamber signal input at the rear of the NERO mAx detector. Plug the CT chamber’s bias plug
(banana jack) into the bias output at the rear of the NERO mAx detector. Position the CT chamber 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 LOW
MAMMO INTERN HIGH 10 mm
MODE CHAMBER SENS BEAM
Select HVL mode, CT chamber, high or low sensitivity and, using the BEAM softkey (3), select the CT
beam width, then press the ENTER key.