MadgeTech’s LNDS, Liquid Nitrogen Data Logging System, is an ultra-low temperature measurement system created specifically for the monitoring of temperature sensitive substances that need to be preserved at cryogenic temperatures.The LNDS can be mounted to the top or outer of a cryo-shipper or freezer, and the probe sheath can be inserted into the tank. The user can then directly view the internal temperature through the LCD on the logger. Also, a variety of probe sizes are available.MadgeTech’s LNDS is easily user programmable with pre selected sample rates from between 2 seconds to 24 hours, and it features a programmable start time and date, up to six months in advance.The 8-button membrane keypad and large LCD provides the user with the ability to view the current reading, minimum, maximum, and average statistics, in real-time. The non-volatile memory will retain data even if AC and battery power are lost. Also, the 9-volt battery it runs on is both user-replaceable and cost effective.The Liquid Nitrogen Monitoring System includes the TCTemp2000 data logger with a calibration certification, thermocouple probe, and 9 volt AC wall mounted power adaptor.
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TEMPERATURE
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Sensor
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Type E Thermocouple
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Thermocouple
Measurement Range:
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-200 ºC to +260 ºC
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Thermocouple Resolution:
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0.1 ºC
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Thermocouple
Calibrated Accuracy:
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+0.1 ºC
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Internal Chanel Temperature Range
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-20 ºC to +60 ºC
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Internal Temperature Resolution
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0.1 ºC
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Internal Calibrated Accuracy
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0.5 ºC (0 to +50 ºC)
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Thermocouple Connection
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Female subminiature (SMP)
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Cold Junction Compensation:
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Automatic, based on internal channe
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DOT-Matrix LCD
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Dimensions
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2.5” x 1.375” (63 mm x 35 mm)
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Text
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Configurable channel text size
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Indicators
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Power, status, memory
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Backlight
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Configurable w/auto shut-off and contrast adjustment
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Start/Stop Time
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Software programmable start time and date, up to six months in advance; programmable stop time
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Memory
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131,071 readings per channel; 262,143 total readings; software configurable memory wrap
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Reading Rate
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1 reading every 2 seconds to 1 every 24 hours
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Calibration
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Digital calibration through software
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Calibration Date
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Automatically recorded within device
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Battery Type
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9V lithium battery included, user replaceable; optional AC adapter
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Battery Life
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1 year battery life at 1 min reading rate with display off. 30 days typical with continuous LCD and no backlight usage
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Data Format
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Date and time stamped ºC, ºF, K, ºR
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Time Accuracy
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±1 minute/month (at 20 ºC to 30 °C)
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Computer Interface
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PC serial or USB (interface cable required); 115,200 baud
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Software
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XP SP3/Vista/Windows 7/Windows 8
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Operating Environment
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20 ºC to +60 ºC, 0 to 95%RH non-condensing
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Dimension
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4.8” x 3.3” x 1.25” (122 mm x 84 mm x 32 mm)
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Thermocouple Dimension
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36” lead wire, 6” x 3/16” dia. probe
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Weight
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16 oz
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Enclosure
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Black anodized aluminum
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BATTERY WARNING: MAY LEAK AND/OR FLAME IF OPENED, RECHARGED, CONNECTED IMPROPERLY, OR DISPOSED OF IN FIRE.
