Ludlum Model 14C

  Radiation Ratemeter

Features

• Low Price
• Rugged
• 5 Decade Analog Ratemeter
• Includes Internal GM Radiation Detector

• 0-2000 mR/hr

• Supports GM and Scintillation Type Radiation Detectors

Introduction

This general purpose, handheld analog ratemeter supports operating two separate radiation detectors. A switch allows the user to select between the internally mounted GM detector with an exposure range of 0 - 2000 mR/hr or an external GM or scintillator detector of choice (see table below). The aluminum cast 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 5 decade range and instrument shut off, an audio on/off switch, a fast/slow response switch, a high voltage display button, and a battery test button. The analog meter face comes in a variety of options to support the measurement units and ranges for the additional external detector selected. A 39" long straight type detector cable with "C" style connector is include in the price of the instrument.

Specifications

PART NUMBER: 48-1611

COMPATIBLE RADIATION DETECTORS: G-M, scintillation (see list below)
METER FACE: Typically 0 - 2 mR/hr and cpm, BAT TEST (others available - see list below)
MULTIPLIERS: X0.1, X1, X10, X100, X1000
LINEARITY: Reading within plus or minus 10% of true value with detector connected
CONNECTOR: Series "C" (others available)
INTERNAL DETECTOR: Energy compensated G-M (used with X1000 scale only)
ENERGY RESPONSE: Within plus or minus 15% of true value between 60 keV - 3 MeV (internal detector only)
THRESHOLD: 40 mV ± 10 mV
AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
HIGH VOLTAGE:900 volts
RESPONSE: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading
RESET: Push-button to zero meter
POWER: 2 each "D" cell batteries (housed in an externally accessible sealed compartment)
BATTERY LIFE: Typically greater than 2000 hrs. (battery condition can be checked on meter)
METER: 2.5" (6.4 cm) arc, 1 mA analog type
CONSTRUCTION: Cast and drawn aluminum with beige polyurethane powder coating
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
SIZE: 6.7" (17 cm) H X 4.0" (10.2 cm) W X 8.3" (21.1 cm) L including handle and source holder
WEIGHT: 3.5 lbs (1.6 kg) including batteries  

This Product is CE Certified

Compatible Radiation Detectors

Compatible radiation detectors are listed below and are not included with the survey meter price. An additional charge will be added for each detector ordered. 

Meter Faces

Options

• Check Source

• Source Holder

• Overload Indicator

• Scaler Option

• Shoulder Strap

• Headset

• Carrying Cases

• Lighted Handle

Replacement Parts

• Cables

• Meter Bezel

• Meter Movement

• Handle

• Probe Clip

Technical Information

• Model 14C Data Sheet

• Model 14C Manual

• Model 14C ANSI Test Results

• Model 14C Response Curve

• Model 14C CE Certificate

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training