Ludlum Model 2241-3
● Digital Radiation Ratemeter with Built-In Scaler
● Auto-Ranging and Adjustable Alarms
● Wide Range High Voltage
● Stores 4 Detector Setups for Detector Swapping
● Supports GM, Proportional and Scintillation Detectors
● Overrange and Overload Protection
The Ludlum Model 2241-3 is a general purpose, digital radiation ratemeter with a built-in scaler that provides timed counts over a user specified period. This system will store detector setup information for up to four detectors and offers a front-panel mounted rotary switch so personnel can quickly swap detectors in the field. The LCD presents readings in a four-digit, moving decimal format together with one of a wide range of available units of measure and is accompanied by several operational and alert icons. The LCD backlight can be activated and remains lit for a user-adjustable interval. This instrument features adjustable alert and alarm setpoints for both the Ratemeter & Scaler modes. Front-panel controls include a rotary switch for selecting between Off, and up to four detector setups, separate switches for selecting Ratemeter Mode and Scaler Mode, audio on/off and fast/slow response time, plus pushbuttons for activating the LCD backlight, and for either resetting the counts or acknowledging any alarms. Calibration, user configured alarms, scaler count intervals and detector setups can be configured via an internally housed switchboard or through an RS-232 serial interface to a PC.
PART NUMBER: 48-2864
APPLICATION: general purpose radiation survey, gross counting
METER TYPE: digital ratemeter and scaler
auto ranging from 0.0 μR/hr–9999 R/hr; 0 cpm–999 kcpm
VARIABLE: Dependent on number of counts present. Typical times are FAST 4 to 25 s, SLOW 4 to 60 s (All times stated from 10% to 90% of final reading).
FIXED: The parameter is adjustable from 10 to 25 resulting in a FAST response from approximately 2 to 50 s. The SLOW response is approximately 10 to 250 s. For MDA-type measurements, the fixed response mode is recommended.
ALERT/ALARM: indicated by annunciation on display
and audible tone
RS-232 DATA DUMP MODE:
enables or disables binary dump mode to RS-232 port, when enabled binary
data will be dumped every 2 seconds
CE CERTIFIED: yes