Fluke Biomedical 90-12 - Manual (Page 9)

Operation
General
2
2-1
Section 2
Operation
2.1 General
The 90-12 is a hand held probe, sensitive to most types of radiation and designed for general survey use
in concert with Victoreen analog and digital survey meters. The feature of an adjustable beta shield
permits discrimination between penetrating and not penetrating radiation.
2.2 Compatibility
The 90-12 probe is designed to be compatible with the following Victoreen general-purpose survey
instruments:
• 90 Analog Survey Meter
• 190 Digital Survey Meter
• 290 Analog Survey Meter
Before connecting or disconnecting the probe or the cable to the survey meter, make sure that the power
to the instrument is turned OFF.
Connecting or disconnecting the probe or the cable
to the instrument with the instrument power turned
ON may cause damage to the instrument.
There is a potential for shock hazard when the
probe or cable is connected or disconnected from
the instrument when the instrument power is turned
ON. Be careful not to touch high voltage at any
time.
If readings from a probe and survey meter indicates
that the radiation rate is relatively high, CAUTION
should be observed when surveying. High rates
can quickly cause the operator's cumulative
exposure to increase with the potential for injury.
2.3 Initial Connection
Connect the probe to the survey instrument. Turn on the survey instrument. Note background readings.
Use the check source on the side of the instrument or any check source available to verify proper
operation. Check to make sure that the probe andIor instrument calibration has not expired prior to use.
CAUTION