Fluke Calibration 1620A Precision Thermo-Hygrometer

The DewK measures temperature to ± 0.125 °C and humidity to ± 1.5 % on two channels, and displays it on a big, clear screen. Ethernet, wireless (optional), or RS-232 will allow you to network as many DewKs as you’d like. And the LogWare III software will allow real-time logging of multiple DewKs, data storage to your computer and seamless integration with MET/CAL® software.

Features at a glance:

  • Superior accuracy
  • Network enabled
  • Powerful logging and analysis tools
  • Two interchangeable calibrated sensors
  • Huge memory
  • Upgraded software


Description

Specifications
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
Delta Temperature Accuracy
 ± 0.025 °C for ± 1 ° changes within 15 °C to 35 °C
 (± 0.045 °F for ± 1 ° changes within 59 °F to 95 °F)
Temperature Resolution
 User selectable up to 0.001 °C/°F on front-panel display (0.01° recorded)
Delta Humidity Accuracy
 ± 1.0 % RH for ± 5 % changes within 20 % RH to 70 % RH
RH Resolution
 User selectable up to 0.01 % on front-panel display (0.1 % recorded)
Inputs
 Up to two sensors, measure temperature and relative humidity, detachable, cable-extendable, interchangeable, self-contained calibrations, may be assigned unique 16-character identifications
Display
 240 x 128 graphics monochrome LCD, displays password-protected temperature/humidity data graphically, numerically, and statistically (one or both channels); 16 pre-defined, user-changeable screen setups
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
Connectivity
 Ethernet, RS-232, RF (optional)
Ethernet
 RJ45 jack, 10 Base-T or 100 Base-TX; static or dynamic (DHCP client) IP address assignment
Web Page
 Embedded web page interface features: instrument identification, measurements, password-protected terminal page; can be disabled
Wireless Option
 Requires wireless modem. 802.15.4 (underlies Zigbee), 2.4 GHz frequency, 1 mW transmit power, 30 m (100 ft) typical unobstructed range; can be disabled
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; As Found and As Left data supplied at three temperature points and three humidity points each at 20 °C (68 °F); Complies with NCSL/ISO/IEC 17025:2000 and ANSI/NCSL Z540-1-1994
LogWare III (Optional Software)
 Requirements include: Microsoft® Windows® 2000 (SP4) or XP (SP2) operating system, IBM compatible Intel Pentium® IV 1 GHz PC processor or better, 512 Mb RAM (1Gb or more recommended), 200 Mb HDD space for installation (additional free space recommended for data storage), CD-ROM drive for installation
Fluke Calibration 1620A Precision Thermo-Hygrometer