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Model 16

General Purpose Survey Meter

Part Number: 48-1612

Features

Low Price
Rugged
4-Range Analog Ratemeter
Supports GM, Proportional, & Scintillation Type Detectors
Adjustable Window

This general purpose, handheld analog ratemeter supports GM, proportional, and scintillation type detectors. The cast aluminum instrument housing, with its separate battery compartment and accompanying metal handle, offers an industrial robustness and quality that promotes long-lasting protection and instrument life.

The front-panel controls include a rotary switch for selecting the four-decade range, instrument shut-off, and battery test, an audio on/off switch, a fast/slow response switch, a high-voltage display button, a count reset button, and a window in/out switch. The analog meter face comes in a variety of options to support the measurement units and ranges for the additional external detector selected.

A one-meter (39 in.) long straight type detector cable with "C" style connector is included in the price of the instrument.

Specifications

Indicated Use	General purpose ratemeter
Compatible Detectors	GM, Proportional, Scintillation
Detection Range	Dependent on detector
Linearity	Within 10% of true value with detector connected
Meter Dial	0 - 500 cpm, 0 - 2.5 kV, BAT TEST (Meter Faces tab lists other available meter faces)
Meter	6.4 cm (2.5 in.) arc, pivot-and-jewel suspension
Controls	Multi-Selector Switch: Instrument Off; Battery check; Range multipliers: x1, x10, x100, x1000 Response Switch: Toggles between FAST (4 s) or SLOW (22 s) from 10% to 90% of final reading Reset Button: Zeroes meter High Voltage Check Button: View high voltage setting on meter face Window: Toggle switch for window in or out Audio Switch: On/Off, Built-in unimorph speaker, 60 dB at 61 cm (2 ft) Calibration Controls: Screwdriver adjustable settings for window, threshold, overload, high voltage, and for each of the four ranges
High Voltage	Adjustable from 400 to 2500 Vdc
Threshold	2 to 60 mV
Window	Adjustable from 0 to 60 mV above threshold, can be turned on or off
Overload	Senses detector saturation, indicated by red lamp and full-scale meter reading
Temperature Range	-20 to 50 °C (-4 to 122 °F)
Power	Two each "D" cell batteries (housed in an externally accessible sealed compartment)
Battery Life	600 hours
Construction	Cast and drawn aluminum with beige powder coating
Detector Connector	Type "C" series (others available)
Size (H x W x L)	16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.), including handle
Weight	1.6 kg (3.5 lb), including batteries

Meter Faces

This table lists the most commonly used meter faces. Others are available upon request.

Meter Face	Description	Detectors
202-643	0 - 500 cpm 0 - 2.5 kV OL BAT TEST	Any
202-365	0 - 420 cpm 0 - 0.2 mR 0 - 2.5 kV BAT TEST	Model 44-7
202-758	0 - 1 kcpm 0 - 2.5 kV OL BAT TEST	Any
202-776	0 - 50 cps 0 - 2.5 kV OL BAT TEST	Model 44-9
202-892	0 - 10 cps 0 - 2.5 kV OL BAT TEST	Any
22-1142	0 - 20 cps 0 - 2.5 kV OL BAT TEST	Any

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 (does not include light).	4464-153
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.
Mechanical Check Source Holder	Check source holder with swing-away door that attaches to instrument housing.	4062-166
Stick-On Check Source Holder	Adhesive check source holder that attaches to instrument housing.	4464-473