Fluke Biomedical 190I - Manual (Page 6)

Victoreen 1901
Operators Manual
1-2
The four (4) batteries are housed in a separate compartment accessed from the instrument back panel. All four
9-V alkaline batteries are required to operate the unit for approximately 200 hours. Visual and audible low
battery indications are provided whenever battery power is low (four-minute intervals for the audible and
continuous for the visual after a battery test).
To avoid possible damage to the instrument, all
four batteries must be in place.
Communication with the 190I is accomplished through an optional infrared two-way adapter, Victoreen
190I-1A, which mounts at the top of the instrument. The adapter provides positive keying with the
instrument for stable connection and communication.
1.2 Specifications
Radiation Detected Alpha, Beta, Gamma, or X-Ray depending on detector used
Operating Range Rate Mode:
CPM: 0-100; 0-1000; 0-10,000; 0-100,000; 0-1,000,000, and 0-
10,000,000
CPS: 0-1, 0-10, 0-100, 0-1000, 0-10,000, 0-100,000, and 0-166,666
μR/hr, mR/hr, R/hr, μSv/hr, mSv/hr, Gy/hr, & Bq/cm
2 : depends on
conversion factor of the probe used.
Integrate Mode:
Counts: 0-100,000,000; displayed as 4 digits up to 9999 counts, 3 digits
plus a K (for thousand) or an M (for Million) at higher counts.
Seconds: 0-65535; displayed as 4 digits up to 9999 seconds, 3 digits in
minutes and tenths of minutes above 9999 seconds.
μR, mR, R, cts, μSV, & mSv: depends on conversion factor of the probe
used.
Accuracy Within 10% of reading between 10% and 100% of full-scale indication on
any range, exclusive of energy response.
Ranges Six (6) decades are available for calibration; the number of usable
decades is detector dependent.
Deadtime Correction Provided above 1000 CPM
Jam Detection Adjustable level for determining jam condition; provided in probe adapter
modules.
Alarm Can be set on any decade at 10% to 100% (in increments of 10%) of full
scale.
Detector Internal Geiger-Mueller Tube
Warm-up Time 15 seconds (diagnostic testing)
Response Time (Bargraph) Selectable; 24, 12, 6, and 3 seconds.
24-second response time selected:
Scale Range (CPM) Response (seconds)
1 0-100 24.0
2 0-1000 12.0
3 0-10K 3.0
CAUTION