Fluke Victoreen 190 Radiation Survey and Count Rate Meter w GM 491-30 probe

Description

Fluke Victoreen 190 Radiation Survey and Count Rate Meter with GM 491-30 with Beta, gamma, and x-ray probe.
The unit was tested with the sample radiation source at the top of the unit.
From the manual:
http://manuals.chudov.com/Victoreen-190-Radiation-Meter.pdf
Model 190 is a portable, battery-operated general-purpose survey meter for
use with most scintillation and Geiger-Mueller (GM) radiation detector,
proportional counting probes, and neutron probes. The design combines
CMOS microprocessor technology, automatic range changing, and a Liquid
Crystal Display (LCD) into an easy to use instrument. Refer to Figure 1-1 for
a general view.
The Model 190 is housed in a lightweight, plastic case designed for portability
and durability. Measurement results are indicated on the front panel LCD.
The display includes:
• A 51 element analog bar graph near the top of the display to provide
real time response.
• A scale multiplier, located below the bargraph relates the analog bargraph full scale to the units
displayed.
• Detector range bargraph consisting of five horizontal bars that indicate the quantity of the dynamic
range of the detector in use.
• A 16 character alphanumeric display that (1) provides a digitized average of the bargraph value or
integrated reading with elapsed time, and (2) displays operational information (e.g., such as
response time changes or changes in the units of the display).
• A backlight, activated by either of two front panel switches that provides for operation in dark
environments.
The analog bargraph emulates an analog meter movement and is especially useful in survey applications.
The digitized value is intended for quantitative analysis and data logging applications
1.2 Specifications
Radiation Detected: Alpha, Beta, Gamma, or X-ray depending on detector used.
Operating Rang: 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, dpm, Bq/cm2, & μCi/cm2: 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, d, μSv, mSv, Bq, & μCi: 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 Probes: Part No.: 489-4, 489-35, 489-50, 489-55, 489-60, 489-110C, 491-30, 491-40, 493-50,
425-110A, 425-200, 489-120, 489-200, RP-1 & PRN
Specifications 1
Response Time(Bargraph): Selectable; 24, 12, 6, and 3 seconds.
24 second response time selected:
Scale Range (CPM) Response (seconds)
1 0-100 24
2 0-1000 12
3 0-10K 3
4 0-100K 1.5
5 0-1M 1.5
6 0-10M 0.7
12 second response time selected:
Scale Range (CPM) Response (seconds)
1 0-100 12
2 0-1000 6
3 0-10K 3
4 0-100K 1.5
5 0-1M 1.5
6 0-10M 0.7
6 second response time selected:
Scale Range (CPM) Response (seconds)
1 0-100 6
2 0-1000 3
3 0-10K 1.5
4 0-100K 1.5
5 0-1M 0.7
6 0-10M 0.7
3 second response time selected:
Scale Range (CPM) Response (seconds)
1 0-100 3
2 0-1000 1.5
3 0-10K 0.7
4 0-100K 0.7
5 0-1M 0.7
6 0-10M
Probe GM 491-30 Product Specifications
Type:
Beta, gamma, andx-ray with sliding 360° metal shield for beta discrimination
Radiation detected
Gamma above 12 keV and beta above 200 keV
Applications:
Beta, gamma probe is more sensitive than 491-40 or 493-50, but has max. rate of 100 mR/hr
Typical background (shielded):
20 CPM
Maximum exposure rate:
100 mR/h (1 mSv/hr)
Nominal sensitivity to 1 mR/hr of
60
Co:
2200 CPM
Replacement GM tube part number:
35-150
Wall material:
Stainless steel
Wall thickness:
30 to 40 mg/cm
2
Active length:
2.25 in (57.2 mm)
Quenching gas:
Neon & halogen
Diameter of probe:
1.1875 in (30 mm)
Length of probe:
5.375 in (136 mm)
Cable length:
48 in(122 cm)
Weight:
Approx. 1.0 lb (0.45 kg)
Operating voltage:
900 V
Humidity range:
0 to 95%
Operating temperature range:
- 65° to + 185°F (- 56° to + 85°C)
Pressure range:
To 15 psig