Model 193-6

Extended Reach microR Survey Meter

Part Number: 48-3063

Features

• Range: 0 to 10 µSv/h (0 to 1000 µR/hr)
• Very Sensitive Pole Mounted Detector
• Dual Alarm Types
• Rugged
• 4-Range Analog Ratemeter

The Model 193-6 is a highly sensitive gamma microR survey meter with an extended reach capability. A very sensitive 15.2 x 2.5 cm thick (6 x 1 in.) plastic scintillator detector is mounted at the end of a 1.2 m (4 ft) long pole to facilitate reaching elevated areas.

Attached to the user-end of the pole is a four-range analog ratemeter employing a cast aluminum instrument housing with a separate battery compartment and accompanying metal handle. The overall design delivers industrial robustness and quality that promote long-lasting protection and instrument life.

The ratemeter front-panel controls include a rotary switch for selecting one of the four ranges, instrument shut-off, and battery test; an audio on/off switch; a fast/slow response switch; and a pushbutton for count reset. This instrument supports two types of alarms: a user adjustable fixed point alarm, and a deviation alarm that activates at levels above a floating background. Multi-turn potentiometers are located under a removable front panel calibration cover (removed for clarity in image). An alarm light is mounted to the front panel and is accompanied by an audio signal.

• Specifications
• Options
• Documents
• Video

• Specifications
• Options
• Documents
• Video

Specifications

Application	Low level (microR) gamma survey
Detector (D x L)	EJ-212 plastic scintillator, 15.2 x 2.5 cm (6 x 1 in.)
Sensitivity (137Cs gamma)	Typically 150 kcpm per μSv/h (1500 cpm per µR/hr)
Energy Response	Energy dependent
Linearity	Reading ± 10% of true value
Meter Dial	0 - 1 µR/hr, BAT TEST (others available)
Detector Range	Background to 10 µSv/h (1000 µR/hr)
Controls	Rotary Selector: Switches between instrument off, battery check, ranges: x1, x10, x100, x1000 Response Switch: Toggles between FAST (4 s) or SLOW (22 s) from 10% to 90% of final reading Reset Pushbutton: To zero meter, and also re-accumulate background data and recalculate the alarm point Audio Switch: For audio on/off, built-in unimorph speaker, greater than 60 dB at 0.6 meters (2 ft) Calibration Controls: Accessible from front of instrument (protective cover provided)
Alarms	Fixed: Alarm point that can be set at any point from 10% of full scale to full scale. Indicated by a constant audible tone, and the lamp turning on. Deviation: A quick alarm that is based on background radiation levels. When the instrument is turned on, it takes an eight-second measurement of background radiation levels and determines a deviation alarm setting. If the radiation level exceeds this setting, the alarm audio will beep every 1/8 second, and the lamp will flash.
Power	Two standard alkaline ˝D˝ cell batteries
Battery Life	Typically 600 hours with alkaline batteries (battery condition can be checked on meter)
Construction	Cast and drawn aluminum with beige powder coat
Overall Length	1.3 m (51 in.)
Weight	3.9 kg (8.5 lb), including batteries

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Options

Option	Description	Part Number
Lighted Handle	Handle with LED to illuminate the instrument display.	4464-154
Shoulder Strap	Adjustable nylon shoulder strap.	4363-413
Model 193-6 Case	Rugged, dustproof and watertight transport and storage case.	2312562
Plastic Disk Check Sources	General purpose check sources used to check instrument response.	Depends on source material and activity.

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Documents

• Data Sheet
• Product Manual
• CE Certificate

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Video

Model 193-6 Overview

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