TESTO 0638 0330 Fine pressure probe

The high-precision probe is used for the measurement of differential pressure and temperature in combination with the testo 320 and testo 330. Heating checks (according to DIN EN 15378) and 4 pascal measurement can be carried out with further accessories.

Cyclic zeroing means the fine pressure probe has no zero point drift and provides high-precision readings. In addition, the fine pressure probe makes simultaneous gas pressure measurement and flue gas analysis possible with the testo 320 or testo 330.

TESTO 0638 0330 Fine pressure probe specifications:

General technical data :

• Operating humidity : 10 to 90 %RH non-dewing
• Operating temperature : 5 to +45 °C
• Protection class : IP40
• Storage temperature : -20 to +50 °C

Temperature – TC Type K (NiCr-Ni) :

• Measuring range :Depends on probe, max. -40 to +1200 °C-200 to +300 °C (with surface probe 0604 0994 (accessory))
• Accuracy :±0.5 °C (-40 to +100 °C)±0.5 % of mv (Remaining Range) additionally ±1 digit, additionally accuracy of probe
• Resolution : 0.1 °C
• Measuring rate : max. 1 / s

Differential Pressure – Piezoresistive :

• Measuring range : -9999.9 to +9999.9 Pa
• Accuracy :±0.3 Pa (0 to +9.99 Pa)±3 % of mv (+10.00 to +9999.9 Pa) additionally ±1 digit
• Resolution :0.01 Pa (-149.99 to +149.99 Pa)0.1 Pa (Remaining Range)
• Measuring rate : max. 1 / s