Difference between revisions of "Ludlums Gamma Area Monitor moedl 45-9"
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Latest revision as of 02:58, 26 May 2010
This information is from: [1]
Introduction
The Model 375/9 Digital Wall-Mount Area Monitor is designed for visibility and ease of use. This monitor provides a fast response to pulsed fields by utilizing an external ion chamber covering any five consecutive decade-range between 0.1 mR/hr and 1,000 R/hr. It features a wall-mount chassis and a four-digit LED display that is readable from 9 meters (30 feet) away.
Backlit indicators warn of low radiation (yellow), high radiation (red), instrument failure (red), and low battery (yellow), along with an audible alarm. A green status light is a positive indication of instrument operation. Parameters are protected under a calibration cover.
Calibration is easily accomplished by moving the cal dipswitch to the right, and using the pushbuttons to increment or decrement the calibration constant, dead time correction, and alarm point parameters. Parameters are stored in non-volatile memory (retained even with power disconnected). A five-decade logarithmic analog output is provided. A battery backup provides 48 hours of additional use after the primary power is removed.
Specifications
INDICATED USE: areas requiring fast response to pulsed fields
MODEL 375P Electronics: DETECTION RANGE: any 5-decade range between 0.1 mR/hr to 1000 R/hr DISPLAY: 4-digit LED with 2 cm (0.8 in.) character height DISPLAY UNITS: μR/hr, mR/hr, R/hr, μSv/h, mSv/h, Sv/h, μrem/hr, mrem/hr, rem/hr LINEARITY: readings with 10% of true value with detector connected INDICATORS: Green light: the instrument is functioning properly Yellow light and slow beep: low alarm Red light and fast beep: high alarm Red light and audible tone: detector fail Yellow light: low battery, less than 2 hours of battery life remaining OVERRANGE: (display reading of "----" and activated low and high alarms) radiation field being measured has exceeded the counting range of the instrument AUDIO: can be configured as single or multiple beeps, with the intensity controlled by rotating the baffle on the device RS-232 OUTPUT: a 2-second dump for computer data logging POWER: 95–135 Vac (178–240 Vac available), 50–60 Hz, 6-volt rechargeable backup battery BATTERY LIFE: typically 48 hours in non-alarm condition, 12 hours in alarm condition CONSTRUCTION: aluminium housing with ivory powder-coat finish SIZE: 18.7 x 24.6 x 6.4 cm (7.4 x 9.7 x 2.5 in.) (H x W x D), excluding detector WEIGHT: 2.9 kg (6.5 lb), excluding detector
DETECTORS: DETECTOR TYPE: external, typically Model 45-9 or 45-9-1 Ion Chamber (others available), user mounted CONSTRUCTION: aluminum with beige powder-coat finish SIZE: 7.6 x 25.7 cm (3 x 10.1 in.) (Dia x L)
Part Number
* 48-3036 * 47-3324
Go back to HRRL_Rad_Test: [[2]]