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1.1 Product Description
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 where an
interpretation of the average reading of the analog bargraph is required.
The following controls are available from the front panel:
•
Light (2) activates the LCD backlight.
•
Mode changes the display units.
•
Log, if activated, logs currently displayed data or changes current location identifier, depending on
the currently active logging mode (i.e., timed or manual logging).
The optional Infrared Communicator, Model 190-
1A, is required to activate the Log function.
General Information
NOTE
General Information
Product Description
Section 1
Figure 1-1. Model 190 Top
1-1
1
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