Ludlum Model 2360 Alpha/Beta Data Logger with Model 43-89 Scintillation Detector

Ludlum Model 2360 Alpha/Beta Data Logger with Model 43-89 Scintillation Detector

Price range: $75.00 through $1,182.00

If you need to separately count alpha (α) and beta (β) concurrently and log the results, the Model 2360 will be the right tool. This instrument is an optimized Alpha-Beta Ratemeter, Scaler, and Data Logger that offers a traditional analog readout supplemented with a digital LCD for the scaler function. This meter supports many different externally connected detectors; two of the more popular ones are noted below.

Up to 550 data points can be stored. Each data point consists of a sample number, date/time stamp, both alpha (α) and beta (β) sample measurements, and a 10 character location identifier. The location identifier can be input via an optional external device through the RS-232 serial port.

A front panel mounted three-way switch facilitates selecting alpha (α) only, beta (β) only, or alpha plus beta. Other controls include a rotary switch for selecting any of the four-decade ranges, battery test, and instrument shut-off; a switch for viewing the high voltage or resetting the counts; an audio volume adjustment knob; a scaler count time selector rotary switch; and a handle mounted push-button for logging and starting scaler count cycles.

Please Note: Radiation equipment rentals require a minimum 3-week lead time to ensure availability

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Model 2360 Alpha/Beta Data Logger

  • Scaler/Ratemeter/Data logger
  • Simultaneous alpha (α) & beta (β) measurements with audio discrimination
  • Logs 550 data points
  • Analog & digital display
  • Six separate alarms
  • Overload protection
  • RS-232 port

Model 43-89 Scintillation Detector

  • 100 cm² dual phosphor alpha (α)/beta (β) scintillator
  • Simultaneously count alpha (α) & beta (β) contamination
Specifications

Model 2360 Alpha/Beta Data Logger

  • SUGGESTED DETECTOR: dual phosphor scintillation and gas proportional detectors
  • LINEARITY: reading within 10% of true value
  • HIGH VOLTAGE: adjustable from 200–2000 volts (can be read on meter)
  • OVERLOAD: senses detector saturation, indicated by red lamp on meter and meter deflecting to full scale (internally adjustable)
  • RESPONSE TIME: 7 seconds on 1x range, 2 seconds on all others
  • SCALER: 6-digit LCD display with 0.64 cm (0.25 in.) digits, overflow arrow, colons to indicate when a count is in process, and backlight
  • COUNT TIME RANGE: 0.1–60 minutes with capability to preset user-programmed value
  • DATA LOGGER: capable of storing up to 550 individual data points with the following identifiers for each point: (all data is stored in non-volatile memory allowing batteries to be removed without loss of data)
    • alpha (α) and beta (β) sample counts
    • sample number
    • date/time stamp
    • scaler count time
    • 10-character location identifier (can be set by ASCII terminal or PC)
  • HEADER INFORMATION: 6 lines of user defined memory at the beginning of the stack for storing user name, survey name, serial numbers, etc. (information is dumped with logged data)
  • DATA OUTPUT: 9-pin RS-232 port for connection to PC for data download and adjustment of setup parameters. A one meter RS-232 to USB adapter cable is included. PC interface software is available for download on our website
  • LOGGING FUNCTION CONTROL: internal selection that enables the pushbutton to log a ratemeter reading, initiate a scaler count and log the resulting reading, log both the scaler and ratemeter reading, or disable the logging function
  • ALARM: has alarm capabilities on both the scaler and ratemeter, both circuits allow for independent alarm settings of the alpha (α) channel, beta (β) channel, and the alpha/beta channel, the scaler alarm setpoints can be set at any point from 0–999999 counts, the ratemeter alarms can be set at any point from 0–999999 cpm, alarm points can be set via the keypad, or PC
  • CONTROLS:
    • RESET/READ HV: a two-position, momentary action switch to allow for the meter to be reset or a reading of the HV setting
    • COUNT TYPE: toggle switch to select alpha+beta or “alpha (α)”, only, or “beta (β)” only
    • AUDIO VOLUME: rotary knob volume control, greater than 60 dB at 61 cm (2 ft), full volume, selectable dual or individual click-per- event for alpha (α) and beta (β) counts and divisions of 1, 10, 100, or 1000 events per click (beta counts only)
    • INSTRUMENT: 6-position rotary knob for instrument off, battery check, range multipliers: x1, x10, x100, x1000
    • COUNT TIME: switch selectable times of 0.1, 0.5, 1, 2, 5, 10, 60 minutes, or PC to allow for a specific count time to be set from a PC
    • LOGGING PUSHBUTTON: located in handle; used to activate scaler and/or log a count
  • CALIBRATION DUE DATE: an internal date that disables the instrument if the required calibration interval has been missed
  • METER DIAL: 0–500 cpm, 0–2 kV, BAT OK, OL (overload); others available
  • BATTERY LIFE: typically 250 hours with alkaline batteries (battery condition can be checked on meter)
  • TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F), may be certified for operation from -40 to 65 °C (-40 to 150 °F)
  • SIZE: 16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.) (H x W x L)
  • WEIGHT: 1.6 kg (3.5 lb), including batteries

Model 43-89 Scintillation Detector

  • INDICATED USE: Simultaneous alpha (α) and beta (β) survey
  • DETECTOR TYPE: ZnS(Ag) adhered to 0.25 mm (0.01 in) thick plastic scintillator
  • WINDOW: 1.2 mg/cm2  metalized polyester
  • WINDOW AREA: Active: approx. 125 cm2 (19.4 in2)
    Open: approx. 100 cm2 (15.5 in2)
  • PROTECTIVE SCREEN: 0.76 mm (0.030 in.) thick stainless steel, 6.4 mm (0.25 in.) hex, 79% open
    Outer dimensions (L x w): 168 x 92 mm (6.6 x 3.6 in.)
  • EFFICIENCY (4π): 239Pu: 17.5% | 99Tc: 10% | 90Sr/90Y: 17.5%
  • TYPICAL BACKGROUND (10 µR/hr field): Alpha: 3 cpm or less | Beta: 300 cpm or less
  • CROSSTALK: Alpha to Beta: 10% or less | Beta:  1% or less
  • DETECTOR UNIFORMITY: Within 10% of average reading
  • GAMMA SENSITIVITY: approx. 20 cpm per µR/hr
  • PHOTOMULTIPLIER TUBE: 38 mm (1.5 in.) diameter
  • OPERATING VOLTAGE: typically 500 to 1000 V (1500 V max.)
  • TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F)
  • ENVIRONMENTAL RATING: IP rating of 63
  • CONNECTOR: Series “C” (others available)
  • CONSTRUCTION: Aluminum with beige powder coating
  • SIZE (H x W x L): 10 x 10 x 33 cm (4 x 4 x 12.25 in.)
  • WEIGHT: 0.68 kg (1.5 lbs)

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