Hart Scientific 1620A "DewK" Thermo-Hygrometer
Now you can easily monitor and record conditions throughout your entire facility with the DewK's new Ethernet and wireless connections, and set your upgraded LogWare III software to notify you immediately of changing conditions.
You'll still have the superior convenience, dependability, and NIST-traceable accuracy of a 1620, but your 1620A will give you the added accessibility and peace of mind you've been looking for.
Features:
- Superior accuracy
- Network enabled
- Powerful logging and analysis tools
- Two interchangeable calibrated sensors
- Huge memory
- Upgraded software
Specifications
The DewK lets you view data just about any way you like it. Both graphical data and statistical data can be shown for
temperature and humidity fromone or two inputs. Modifying any of the standard screens is easily done, so you see exactly
what you want—no more, no less.
Optional LogWare III Software:
If you really want to get the most out of your DewK, LogWare III is an investment worth every penny. As client-server
or stand-alone software, it remotely monitors and logs an unlimited number of concurrent log sessions into a single database.
That means data from many DewKs can be managed in real time via Ethernet, RS-232, or wireless connections.
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