Testo K. K.® testo 6721 Pressure Dew-Point Switch G1/2 Connection　5556721 5556721

Type of sensor: Capacitance type humidity sensor
Unit: ℃td
Measurement range (pressure dew-point): -30℃ to +30℃td (recommended range -20 to +10℃td)
Measurement error: +/- 1K (> 0℃td), +/- 2K (-10 - 0℃td), +/- 3K (-20 to -10℃td), +/- 4K (-30 - 20℃td)
Type of temperature sensor: NTC thermistor
Output: Switch output 2 x potential free switch
Measurement frequency: 1 time/second
Resolution: 0.1℃ td
Power supply: 24V (AC/VDC), 20 - 30V (AC/VDC)
Power consumption: 2 wire type current/4 - 20mA, DC20/24/30 20/20/20, 4 wire type voltage/DC24/30/20 7/7/20, AC24/30 22/28
Outer dimensions: 167 x 33 x 33mm
Mass: 240g
Connection to the process: G1/2 inches or NPT1/2 inches
Protection grade: IP65 (when adapter is connected or protection cap for interface is used)
Process temperature: 0℃ to +50℃ (+10 to +35℃ ideal)
Storage temperature: -40 to +70℃
Measurement object: Compression air (filter pass/after drying, Equivalent to cleaning grade 2-4-2 of JISB8392-1)
Pressure resistance: Maximum 2MPa (abs)