RH350 Datasheet, PDF (2/6 Pages) Extech Instruments Corporation. – SuperHeat Psychrometer

Introduction
Congratulations on your purchase of the Extech RH350 SuperHeat Psychrometer. This
device measures Differential Temperature (T1-T2, Air-T1, T1-DP), Humidity, Air
Temperature, Dew Point and Wet Bulb. Advanced features include built-in memory and
recall of up to 99 data points, Min/MAX/Average readings from the captured data, Data
Hold, selectable Auto Power Off, and an RS-232 interface for capturing readings to a PC
using optional 407752 software. Careful use of this meter will provide years of reliable
service.
Meter Description
1. Humidity Sensor & Air Temperature Sensor
2. Triple LCD Display
3. On/Off; Set Mode
4. Min/Max/Average; Reset Min/Max
5. Air, T1, Air-T1, Dew Point
6. T1 probe input
7. T2 probe input
8. T1-T2, T2, T1-Dew Point, Wet Bulb
9. Store Current Reading; Backlight
10. Hold; Recall Mode
11. RS232 port
Note: The battery compartment is located
on the rear of the instrument
Display Description
1. Air, T1, Air-T1, Dew Point, Low Battery
1
9
2. Temperature °C/°F
2
8
3. T2, T1-T2, T1-Dew Point, Wet Bulb
4. Temperature °C/°F
7
5. Date (month, day, year), Time (24 hour clock) ³
6
4
6. Memory Store/Recall Location
7. Relative Humidity %
5
8. Maximum, Minimum
9. Hold, Average
2
RH350/355 V2.1 8/08