Fluke Calibration 1620A-H-156 Getting Started Guide - Page 5

1 Before You Start Before You Start Introduction Fluke's Hart Scientific Division's 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. Features of the thermo-hygrometer include: ● Two channels measure ambient temperature to ± 0.125 °C and %RH to ± 1.5 % ● Two sensor capability (second sensor optional), each measuring temperature and relative humidity; each is detachable, cable-extendable, and interchangeable, with self-contained calibration; each may be assigned a unique 16-character identification ● Display resolution is user selectable up to 0.001 °C and 0.01% RH ● On-board memory holds up to 400,000 time/date-stamped readings ● Serial RS-232 interface for reading measurements and access to settings ● Ethernet LAN interface provides TCP/IP communicatins and embedded HTML web page for reading measurements over a network ● Optional wireless RF 802.15.4 (ZigBee) for remote operation ● Visual and audio alarms for various alarm or fault conditions, alarm output port ● May be wall mounted or set on a bench top ● Detachable sensors contain their own calibration data for easy recalibrations ● Optional software logs in real-time or shows graphical/statistical data ● Password protection of settings ● Large LCD displays temperature and humidity data graphically, numerically, and statistically; 16 pre-defined, user-changeable screen setups ● Power 12 V dc from external 110-240 V ac to dc converter ● Uses a standard 9V battery backup to allow continued measuring during power interruptions Symbols Used Table 1 lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual. Table1 International and electrical symbols Symbol Description AC (Alternating Current) AC-DC