1621A-S

Specifications

Web page

Embedded web page interface features: instrument identification, measurements, password-protected terminal page; can be disabled

Ethernet

RJ45 jack, 10 Base-T or 100 Base-TX; static or dynamic (DHCP client) IP address assignment

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 (1 Gb or more recommended), 200 Mb HDD space for installation (additional free space recommended for data storage), CD-ROM drive for installation

Calibrated RH accuracy (“S” model)

±2% RH from 20% RH to 70% RH

Operating range

0°C to 50°C (32°F to 122°F); 0% RH to 100% RH

Connectivity

Ethernet, RS-232, RF (optional)

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

Expected extrapolated performance (uncertified)

±0.5°C (±0.9°F) outside calibrated range ±3% RH outside calibrated range

Alarm port output

2.5 mm two-conductor subminiature plug, 0 V normal, 11 to 12 V active, sources up to 20 mA

Inputs

Up to two sensors, measure temperature and relative humidity, detachable, cable-extendable, interchangeable, self-contained calibrations, may be assigned unique 16-character identifications

Battery backup

Standard 9 V battery enables continued measuring during power disruptions

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)

Memory

400,000 typical individual date/time-stamped readings

Calibrated temperature Accuracy (“S” model)

±0.25°C from 15°C to 35°C (±0.45°F from 59°F to 95°F)

RH resolution

User selectable up to 0.01% on front-panel display (0.1% recorded)

Calibrated temperature accuracy (“H” model)

±0.125°C from 16°C to 24°C

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

Mounting

Wall mounted (hardware included) or set on a bench top

Size (DewK) (H x W x D)

125 x 211 x 51 mm (4.9 x 8.3 x 2.0 in)

Size (sensors) (L x Dia)

79 x 19 mm (3.1 x 0.75 in)

Alarms

Password-protected visual, audible, and external alarms for temperature, temperature rate, RH, RH rate, and fault conditions

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

Delta humidity accuracy

±1.0% RH for ±5% changes within 20% RH to 70% RH

Power

12 V DC from external 100 to 240 V DC power supply

Weight

0.7 kg (1.5 lb)

Calibrated RH accuracy (“H” model)

±1.5% RH from 20% RH to 70% RH