RH355-NIST - EXTECH INSTRUMENTS

Specifications subject to change without notice.

www.extech.com 9/19/11 - R1

Two Type K External Probe inputs for Superheat

Plus built-in memory stores up to 99 data records

SuperHeat Psychrometer

Ordering Information:

RH350 ..........................Superheat Psychrometer

RH350-NIST ................RH350 with Calibration Traceable to NIST.

872501-S ....................Type K Temperature Probe (for Model RH350)

RH350-CAL ..................33% and 75% RH calibration reference

589250 ........................RS-232 cable for RH350

Features:

•Superheat differential measurements:

T1-T2, Air-T1, T1-Dewpoint

•Dual Type K external temperature probe inputs (T1, T2)

•Simultaneous display of %RH, Temperature and

Dew point or Wet Bulb or External Probe Temperatures

•Built-in RS-232 interface — uses optional

Windows® 95/98/2000/ME/NT/XP compatible software

•Retrieve Max/Min readings with data and time

plus Average function

•Real time clock

•Triple display with backlighting

•Unique sensor cap design twists to closed

position for protection during storage

•Switchable °F/°C temperature units with 0.1° resolution

•Data Hold freezes current reading on display

•Auto power off to save battery life

•RH350 complete with two Type K bead wire

temperature probes and 4 AAA batteries

•Optional RH355 kit includes RH350, 33% and 75%

calibration bottles, RS-232 PC cable, and case

RH355 Superheat Psychrometer Kit includes

meter, 33% and 75% calibration bottles, 2

temperature probes, RS232 PC cable, 4 AAA

batteries and carrying case.

Specifications: Range Max Resolution Basic Accuracy

Humidity 10 to 90%RH 0.1% RH ±3% RH

Temperature (internal) -4 to 122°F (-20 to 50°C) 0.1° ±1.8°F or ±1°C

Temperature (external) -328 to 2498°F (-200 to 1370°C) 0.1° ±0.3% or ±1.8°F/±1°C

Dew Point -90.4 to 122°F (-68.0 to 49.9°C)

Wet Bulb -6.9 to 122°F (-21.6 to 49.9°C)

Dimensions 9 x 2.2 x 1.7" (230 x 57 x 44mm)

Weight 5.3oz (153g)