{"product_id":"ludlum-model-2221-digital-scaler-ratemeter-single-channel-analyzer-like-new","title":"Ludlum model 2221 Digital Scaler\/Ratemeter Single Channel Analyzer- Like new","description":"\u003cp\u003eThese portable Digital Scaler \/Rate Meter with \"C\" connections are in like new condition.  Easy to switch settings for various probes.  Bench tested to assure working condition.\u003c\/p\u003e\n\u003cp\u003eWhy paid full price?  We have ours priced at almost half the current retail price.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003e\u003ci\u003e●  \u003c\/i\u003e\u003c\/span\u003e\u003ci\u003eDigital Radiation Ratemeter with Built-In Scaler\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003e\u003ci\u003e●  \u003c\/i\u003e\u003c\/span\u003e\u003ci\u003eDual Analog Meter and Digital LCD Presentation\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000; font-family: Verdana;\"\u003e\u003ci\u003e●  Rich Array of Discrete Front Panel Controls with digital output of each reading\u003cbr\u003e\n\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003e\u003ci\u003e●  \u003c\/i\u003e\u003c\/span\u003e\u003ci\u003eSingle Channel Analyzer with threshold settings for alpha, beta, and gamma discrimination\u003cbr\u003e\n\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000; font-family: Verdana;\"\u003e\u003ci\u003e●  Wide Range HV\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000; font-family: Verdana;\"\u003e\u003ci\u003e●  Overload Protection\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003e\u003ci\u003e●  \u003c\/i\u003e\u003c\/span\u003e\u003ci\u003eSupports GM, Proportional and Scintillation Detectors\u003cbr\u003e\n\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ci\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0649\/9853\/9318\/files\/landing_mockup_large.png\" alt=\"\" width=\"86\" height=\"107\"\u003eAdd a Counts.Pro for $499 to digitize your surveys and turn your meter into a digital scaler\/ratemeter\/cloud connected GPS datalogger!  \u003ca title=\"See Here!\" href=\"https:\/\/store.chpconsultants.com\/search?q=COUnts.pro\u0026amp;submit=\"\u003eTake your meter to the next level with Counts.Pro\u003c\/a\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e- See full spec's below.\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThe Ludlum Model 2221 is a general purpose radiation ratemeter and scaler that provides both an analog and digital display for optimally viewing the count rate and rate of change through all possible four decades of display. The digital LCD can present either the count rate data or be switched over to read the scaler counts. It has a rich array of logically arranged discrete controls on the front panel that permit precise control of the desired measurement. Control functions available include, decade range selection, scaler count time, power on\/off, response setting, LCD analog\/digital switch, PHA window switch, lamp, audio divide by, audio volume, count zeroing, scaler start\/halt. The wide range high voltage supply supports a wide variety of detectors with additional threshold and window settings that facilitate switching between gross counts and the energy band. The instrument housing is cast aluminum with a separate battery compartment and accompanying metal handle. This design delivers industrial robustness, quality, capability, and versatility that is difficult to surpass anywhere.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThis meter is great for industrial use and with the Scaler function is a fantastic all around meter for performing all sorts of surveys and even counting samples.  We sell a lot of these with a 2X2 NaI detector which is the industry standard for performing walkover surveys.  We also supply these with our floor monitor carts.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eFor civil defense, you can perform long term counts of samples to detect even trace levels of radioactivity. We sold a lot of these during the Fukushima incident with a 2x2 NaI to home users and Sushi importers and exporters!  Note that we have quite a few of these.  Some look better than others, but they are all fully functional.  We sell the best looking ones on a first come, first served basis.  If you want a photo of the actual unit you will buy, let us know and we will send you one.\u003cbr\u003e\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eWe are near a Ludlum Measurements Lab and can drop these meters off to have an RS-232 connection applied to them at cost ($460.00 in Dec of 2015) by the Ludlum Lab (about what Counts.Pro costs which does the same thing only better).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSPECIFICATIONS\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAPPLICATIONS: radiation field analysis\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e \u003cspan style=\"font-weight: bold;\"\u003eRATEMETER:\u003c\/span\u003e provides a four-decade analog display that is operational any time the instrument is turned on, the ratemeter can also be presented on the accompanying LCD as a digital value when the LCD is switched to the \"Dig. Rate\" position\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eSCALER:\u003c\/span\u003e range from 0-999999 counts\u003cbr\u003e\n\u003cb\u003eTIMER:\u003c\/b\u003e\u003cb\u003e \u003c\/b\u003eswitch selectable divisions of 0.1, 0.5, 1, 2, 5, 10 minutes or CONT (continuous) for manual timing\u003cbr\u003e\n\u003cb\u003eCONCURRENT USE:\u003c\/b\u003e scaler or digital ratemeter is active when not selected, allowing for concurrent use\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHIGH VOLTAGE\u003c\/strong\u003e: adjustable from 400-2400 volts (can be checked on display)\u003c\/div\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e \u003cb\u003eTHRESHOLD:\u003c\/b\u003e adjustable from 100-1000 (can be checked on display)\u003cbr\u003e\n\u003cb\u003eWINDOW:\u003c\/b\u003e adjustable from 0-1000 above threshold setting (can be turned on or off)\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eGAIN:\u003c\/span\u003e adjustable from 1.5–100 mV at a threshold setting of 100\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eOVERLOAD:\u003c\/span\u003e senses detector saturation, indicated by “– – – –” on LCD display and meter going to full scale (adjustable depending on detector selected)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e CONNECTOR:\u003c\/span\u003e series \"C\" type (can switch to BNC or other for $30 extra).\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eMETER FACE:\u003c\/span\u003e 0–500 cpm, 50–500k cpm logarithmic scale \u003ca style=\"color: #000000;\" href=\"http:\/\/www.deqtech.com\/Ludlum\/Products\/model2221_faces.htm\"\u003e \u003cspan style=\"font-weight: 400; font-style: italic; text-decoration: underline;\"\u003e(others available)\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003cb\u003eDIGITAL DISPLAY:\u003c\/b\u003e 6-digit LCD display with 0.5 in. (1.3 cm) high digits\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eLCD BACKLIGHT:\u003c\/span\u003e activated by LAMP switch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e AUDIO:\u003c\/span\u003e built-in unimorph speaker with volume control\u003cbr\u003e\n\u003cb\u003eAUDIO DIVIDE:\u003c\/b\u003e toggle switch for 1, 10, or 100 events per click\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eAUDIO JACK:\u003c\/span\u003e for optional headset\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eCONTROLS:\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003ePower Switch: On\/Off\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eScale Selector Switch: x1, x10, x100, x1K, Log\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eResponse Switch: toggles between FAST (4 s) or SLOW (22 s) from 10% to 90% of final reading \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eMeter Zero Pushbutton: to zero meter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eAudio Volume Knob: adjusts volume of audio output\u003cbr\u003e\nAudio Divide Switch: divides audio clicks by either 1, 10, or 100\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eMeter Lamp Switch: illuminates meter\u003cbr\u003e\nWindow Switch: for selecting between wide open window counts or a narrower setting for viewing a specific energy band\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eScaler Count Time Selector Switch: 0.1, 0.2, 0.5, 1, 2, 5, or 10 minutes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eCount Pushbutton: starts or resets scaler count\u003cbr\u003e\nCount Hold Pushbutton: stops scaler count and leaves result in the display\u003cbr\u003e\nScaler\/Digital Rate Switch: selects which mode is presented on the LCD\u003cbr\u003e\nTest Buttons: battery, high voltage, threshold, window\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-left: 12px; margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003eCalibration Controls: recessed screwdriver adjustments with calibration cover\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e POWER:\u003c\/span\u003e 4 each “D” cell batteries\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin-top: 0; margin-bottom: 0;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e BATTERY LIFE:\u003c\/span\u003e typically 250 hours with alkaline batteries (battery check on meter)\u003cbr\u003e\n\u003cb\u003eSIZE:\u003c\/b\u003e 9 x 4.3 x 10 in. (22.9 x 10.9 x 25.4 cm) (H x W x L) including handle\u003cbr\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eWEIGHT:\u003c\/span\u003e 5.5 lb (2.5 kg) including batteries\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ludlum","offers":[{"title":"Default Title","offer_id":43427569926198,"sku":null,"price":2697.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/9853\/9318\/files\/20230622_084213-scaled.jpg?v=1737476116","url":"https:\/\/www.chpconsultants.com\/products\/ludlum-model-2221-digital-scaler-ratemeter-single-channel-analyzer-like-new","provider":"CHPConsultants","version":"1.0","type":"link"}