pi safety
AC.Ex Volume Flow Controllers
AC.Ex volume-flow controllers combine measurement, control and actuation for classified ventilation systems. They are designed for applications where setpoint control, measured value display and hazardous-area suitability must be considered together.
Product Overview
Explosion-protected volume-flow controller assemblies using QT.Ex actuators and IY.Ex pressure sensors. DAS can assist with product selection, availability, technical documentation and project-specific requirements.
Features & Benefits
- Integrated illuminated display for measured value indication.
- Adjustable on site with analogue setpoint options.
- Supports 0-10 V or 4-20 mA feedback and setpoint specification.
- Low power consumption below 3 W referenced in the PDF.
- Cable length from transmitter to sensor up to 100 m.
Applications
- Classified-area ventilation balancing
- Hazardous process air control
- Pressure-controlled damper systems
- Laboratory, pharmaceutical and chemical ventilation
Technical Specifications
| Certification | II2(1)G Ex eb mb ib [ia Ga] IIC T4 Gb; II2(1)D Ex tb ib [ia Da] IIIC T130C Db |
|---|---|
| Zones | For mounting in zones 1, 2, 21 and 22 |
| Ambient Temperature | -40 C to +58 C |
| Protection | IP66 |
| Control Signals | 0-10 V or 4-20 mA setpoint and feedback options |
| Related Components | QT.Ex actuator and IY.Ex pressure sensor families |