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OVERHOFF products
The Flat Ferret, Model FF-27
- surface contamination monitor
-low gas consumption
-built-in audio
-auto gas shut-off
Ranges:
500; 5,000; 50k; 500k cts/min (FF-27M) or
0-10; 100; 1,000; 10,000 cts/sec (FF-27S)
Flowmeter: 10-1000 cc/min. Needle valve control.
Background:
Typically less than 800 cts/min for (FF-27M) or 15 cts/sec for (FF-27S)
Calibration:
4 range pots and 1 overall control. Internal.
Detection Area:
FF-27S (or M) With clothing mask attached 0.5cm x 14cm.
Mask removed 4.6cm x 21.6cm.
Sensitivity:
At 100 Bq/100 cm2, 35 cts/sec above background for FF-27.
Battery:
2 nine volt “transistor'' batteries Eveready 1222 or equivalent, 300 hour
normal operating life.
Weight:
Probe FF-27: 0.57 Kg (1lb. 4 oz.)
Electronics Package: 2.6 Kg (5lbs. 12oz.) plus
P-10 gas container: 0.6 Kg (2lbs. 6 oz.)
Option:
Larger gas cylinder (DOT 3AA2015) 35 capacity of lecture bottle. On two wheel dolly.
- surface contamination monitor
-low gas consumption
-built-in audio
-auto gas shut-off
Ranges:
500; 5,000; 50k; 500k cts/min (FF-27M) or
0-10; 100; 1,000; 10,000 cts/sec (FF-27S)
Flowmeter: 10-1000 cc/min. Needle valve control.
Background:
Typically less than 800 cts/min for (FF-27M) or 15 cts/sec for (FF-27S)
Calibration:
4 range pots and 1 overall control. Internal.
Detection Area:
FF-27S (or M) With clothing mask attached 0.5cm x 14cm.
Mask removed 4.6cm x 21.6cm.
Sensitivity:
At 100 Bq/100 cm2, 35 cts/sec above background for FF-27.
Battery:
2 nine volt “transistor'' batteries Eveready 1222 or equivalent, 300 hour
normal operating life.
Weight:
Probe FF-27: 0.57 Kg (1lb. 4 oz.)
Electronics Package: 2.6 Kg (5lbs. 12oz.) plus
P-10 gas container: 0.6 Kg (2lbs. 6 oz.)
Option:
Larger gas cylinder (DOT 3AA2015) 35 capacity of lecture bottle. On two wheel dolly.
