Model 5

Geiger Counter

Part Number: 48-1607

Features

• Range: 0 to 20 mSv/h (0 to 2000 mR/hr)
• Energy Compensated GM Detectors
• Rugged
• 5-Range Analog Ratemeter

The Model 5 is a gamma exposure ratemeter equipped with two internally housed, energy-compensated GM detectors that measure over the range of 0 to 20 mSv/h (0 to 2000 mR/hr). The cast aluminum instrument housing with its separate battery compartment and accompanying metal handle offer an industrial robustness and quality that promote long lasting protection and instrument life. The front-panel controls include a rotary switch for selecting the five display ranges and instrument shut-off, an audio on/off switch, a fast/slow response switch, and push-buttons for count reset and battery test. The Model 5 is a complete turn-key system and includes two "D" cell batteries.

• Specifications
• Meter Faces
• Options
• Documents
• Replacement Parts

• Specifications
• Meter Faces
• Options
• Documents
• Replacement Parts

Specifications

Indicated Use	Gamma survey
Detector	2 energy-compensated GMs, housed inside instrument enclosure
Detection Range	0 to 20 mSv/h (0 to 2000 mR/hr)
Energy Response	Within 15% of true value from 60 keV to 3 MeV
Meter	Analog dial: 0 to 2 mR/hr, BAT TEST (others available)
Backlight	No
Multiplier	x0.1, x1, x10, x100, x1000
Reset	Pushbutton to zero meter
Calibration Controls	Accessible from the front of the instrument
Alert / Alarm	No
High Voltage	540 ± 25 Vdc
Overload Protection	Yes
Audio	Built-in unimorph type speaker with ON/OFF switch
Temperature Range	-20 to 50 °C (-4 to 122 °F)
Working Environment	Normal working conditions
Power	Two each "D" cell batteries (housed in sealed compartment that is externally accessible)
Battery Life	Typically greater than 2000 hours
RS-232 Port	No
Size (H x W x L)	19.0 x 8.9 x 21.6 cm (7.5 x 3.5 x 8.5 in.)
Weight	1.6 kg (3.5 lb), including batteries

---

Meter Faces

This table lists the most commonly used meter faces.

Meter Face	Image (click to view larger)	Description
202-041		0 - 2 mR/hr BAT TEST
202-209		0 - 20 µSv/h BAT TEST
202-1049		0 - 0.02 mSv/h BAT TEST

---

Options

Option	Description	Part Number
Portable Scaler Option	Adds scaler counting capability. Includes digital readout, count time selector switch, and count control button.	4464-114
Overload Indicator Option	Adds Overload indicator with a light.	4464-130
Detector Clips	Stainless steel clip attaches to instrument handle or case facilitating one-handed carrying of instrument and detector.	Depends on detector.
Lighted Handle	Handle with LED to illuminate the instrument display.	4464-154
Shoulder Strap	Adjustable nylon shoulder strap.	4363-413
Headphone Jack	Adds headphone jack to instrument.	4464-464
Stereo/Mono Headphones	Adjustable stereo/mono headphones.	22-9313
Transport & Storage Case - Small	Rugged, dust- and waterproof transport and storage case.	2311062
Plastic Disk Check Sources	General purpose check sources used to check instrument response.	Depends on source material and activity.

---

Documents

• Data Sheet
• Product Manual
• CE Certificate
• Energy Response

---

Replacement Parts

Description	Part Number
GM Tube, Low Range	01-5295
GM Tube, High Range	01-5306

---