Products Description
Testo 05556744 Dew Point Transmitter

Feature & Principle
It is Testo 6740 series pressure dew point transmitter, part number 05556744. It adopts high-precision capacitive humidity sensing element, calculates pressure dew point value and converts it into standard 4-20mA analog signal for PLC/DCS acquisition. The rotatable housing and local display support on-site viewing and parameter setting. It is widely installed on compressed air pipelines and adsorption dryers to prevent condensation and corrosion of pneumatic equipment.
Specifications
Model: testo 6740 PN: 05556744 Brand: Testo Process connection: 1/2" NPT With display: Yes Power supply: 20~30VDC Signal output: 4-20mA (2-wire) Dew point range: -60 ~ +30 ℃td Max process pressure: 50bar Process medium temperature: 0 ~ 50℃ Protection class: IP65 Application: Compressed air dryer, pneumatic pipeline, industrial dry air system Certification: CE
Components & Diagnostics
Capacitive humidity sensing probe, signal conditioning circuit, LCD display, rotatable metal thread, M12 wiring connector. Common faults: sensor drift, no display, abnormal 4-20mA output, thread sealing leakage.
Product Brief
05556744 dew point transmitter, Testo compressed air trace moisture monitoring spare widely used for dryer and air pipeline overhaul and replacement.