Fluke Biomedical 4000M+ - Manual (Page 11)

2 Operation
Front Panel Configuration
2-3
NOTE
Switch positions 2, 3, and 4 have been factory set
and MUST NOT be changed.
7. Carefully replace the case top.
8. Secure the case top to the rest assembly using the screws (and feet) removed in Step 3.
ON/OFF Switch
The ON/OFF Switch turns the instrument power on or off. As discussed earlier, the unit can be powered
with either the internal rechargeable batteries or with AC line power using the supplied AC adapter.
NOTE
If an Invalid Filter message is displayed instead of
the Filter Wheel setting, the Filter Wheel is set to
CHK (or other illegal position) when the unit is
turned ON in the RADIO or FLUORO modes.
If the RADIO/FLUORO Switch is set to RADIO, and the EXP/ALL Switch is set to ALL, a RADIO Ready
message will be displayed.
If the RADIO/FLUORO Switch is set to FLUORO, and the EXP/ALL Switch is set to ALL, a FLUORO
Ready message will be displayed followed by an exposure rate value (in mGy/sec or mR/min) and a
calculated kVp value. The display will toggle between the exposure rate and kVp value.
NOTE
The display will show exposure rate only (rather
than toggle between the exposure rate and
calculated kVp value) in the event that the input to
the detector is too low to provide an adequate
signal for a kVp calculation.
RADIO/FLUORO Switch
The RADIO/FLUORO Switch selects either the Radiographic Measurement Mode or the Fluoroscopic
Measurement Mode when the EXP/ALL Switch is set to ALL. When the EXP/ALL Switch is in EXP, the
RADIO/FLUORO
Switch selects either the DOSE or RATE mode. Refer to Section 3 – Theory of
Operation for a discussion of applications for each mode.
NOTE
In the Fluoroscopic Mode, a real time display of
tube output and kV are continuously updated. In
the Radiographic Mode, data are accumulated until
radiation ceases, and then the results are
displayed.
EXP/ALL Switch
The EXP/ALL Switch selects the Ion Chamber Mode, either the Exposure Dose/Rate Mode (EXP) or the
Radiographic/FLUORO Measurement Mode (ALL).
(W/Al)/(Mo/Mo) Switch