English Datasheet

SuperHeat Psychrometer
Two Type K External Probe inputs for Superheat
Plus built-in memory stores up to 99 data records
• 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
• Complete with two Type K bead wire temperature
probes and 4 AAA batteries
Temperature (internal)
Temperature (external)
Dew Point
Wet Bulb
10 to 90%RH
-4 to 122°F (-20 to 50°C)
-328 to 2498°F (-200 to 1370°C)
-90.4 to 122°F (-68.0 to 49.9°C)
-6.9 to 122°F (-21.6 to 49.9°C)
9 x 2.2 x 1.7" (230 x 57 x 44mm)
5.3oz (153g)
Max Resolution
0.1% RH
Basic Accuracy
±3% RH
±1.8°F or ±1°C
±0.3% or ±1.8°F/±1°C
Ordering Information:
RH350 ................Superheat Psychrometer
RH350-NIST ......RH350 with Calibration Traceable to NIST.
TP870 ................Type K Temperature Probe (482°F/250°C)
RH350-CAL ........33% and 75% RH calibration reference
589250 ..............RS-232 cable for RH350
Specifications subject to change without notice.
9/27/11 - R1
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