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Fluke 1620A-S Thermo-Hygrometer
Includes: One standard-accuracy sensor, wall mount bracket, RS-232 cable.
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The Fluke 1620A is a low-cost, high-accuracy, digital thermo-hygrometer. Its unique combination of features makes it suitable for a wide variety of applications from laboratory to industrial ambient measurement.
Two types of sensors are available from Fluke Calibration, and the DewK may be originally purchased with either one. The high-accuracy sensor (“H” model) reads temperature to ± 0.125 °C over a calibrated range of 16 °C to 24 °C. Relative humidity readings are to ± 1.5 %RH from 20 %RH to 70 %RH.The standard-accuracy sensor (“S model) reads temperature to ± 0.25 °C over its calibrated range of 15 °C to 35 °C. Relative humidity readings are to ± 2 % RH from 20 % RH to 70 % RH.
Math and statistical functions
In addition to temperature and humidity, the DewK calculates dew point, heat index, and rates of change for both temperature and humidity. Min, max, and a variety of other statistics are also calculated and can be shown on-screen. Daily summary statistics, including min, max, and maximum rates of change are stored for the most recent sixty days.
Alarms and battery backup
Alarm settings can be set up quickly in the Fluke 1620 (DewK)based on temperature, the rate of change in temperature, RH, the rate of change in RH, and instrument fault conditions. Alarms can be both visual (flashing display) and audible (beeping). Likewise, alarm settings can be set up and events triggered in LogWare III. The Fluke 1620 (DewK)is also equipped with a 0 to 12 volt alarm output that can trigger a process control system.
The DewK thermo hygrometer and humidity monitor has enough on-board memory to store up to 400,000 date- and times stamped data points. That’s two years’ worth of data for both measurements from two sensors if readings are taken every ten minutes!
Powerful logging and analysis tools.
Two interchangeable calibrated sensors.
|Operating Range||0 °C to 50 °C (32 °F to 122 °F); 0 % RH to 100 % RH.|
|Calibrated Temperature Accuracy (“H” Model)||± 0.125 °C from 16 °C to 24 °C (± 0.225 °F from 60.8 °F to 75.2 °F).|
|Calibrated temperature Accuracy (“S” Model)||± 0.25 °C from 15 °C to 35 °C (± 0.45 °F from 59 °F to 95 °F).|
|Calibrated RH Accuracy (“H” Model)||± 1.5 % RH from 20 % RH to 70 % RH.|
|Calibrated RH Accuracy (“S” Model)||± 2 % RH from 20 % RH to 70 % RH.|
|Expected Extrapolated Performance (Uncertified)||± 0.5 °C (± 0.9 °F) outside calibrated range
± 3 % RH outside calibrated range.
|Temperature Resolution||User selectable up to 0.001 °C/°F on front-panel display (0.01° recorded).|
|Inputs||Up to two sensors.|
|Display||240 x 128 graphics monochrome LCD.|
|Memory||400,000 typical individual date/time-stamped readings.|
|Alarms||Password-protected visual, audible, and external alarms for temperature, temperature rate, RH, RH rate, and fault conditions.|
|Alarm Port Output||2.5 mm two-conductor subminiature plug, 0 V normal, 11 to 12 V active, sources up to 20 mA.|
|Mounting||Wall mounted (hardware included) or set on a bench top.|
|Power||12 V dc from external 100 to 240 V dc power supply.|
|Battery Backup||Standard 9 V battery enables continued measuring during power disruptions.|
|Size (DewK) ( HxWxD )||125 mm x 211 mm x 51 mm (4.9 x 8.3 x 2.0 in).|
|Size (Sensors) ( LxDia )||79 mm x 19 mm (3.1 x 0.75 in).|
|Weight||0.7 kg (1.5 lb).|
|Calibration||Certificate of NIST-traceable NVLAP accredited temperature and humidity calibration included.|
|Fluke 1620A warranty||1 year.|
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|9328||Protective Case for 1620A and two sensors.||2106066|
|1621A-H-256||1620A-H value kit 220V / 50-60Hz.||2724020|
|1621A-S-256||1620A-S value kit 220V / 50-60Hz.||2724047|
|2628||Cable, Sensor Extension, 7.6 m (25 ft).||2112289|
|2629||Cable, Sensor Extension, 15.2 m (50 ft).||2106048|
|2630H||Sensor Wall Mount Bracket.||2111586|
|2633-USB||Wireless Modem, USB to wireless.||2724058|