SMC Pneumatics has added a low cost, high precision digital pressure switch to the Series ZSE/ISE. Coded ZSE 30 for vacuum pressure, and ISE 30 for positive pressure, the units feature a two-colour digital display that provides for four different display settings dependent on application requirements.
The LCD displays current pressure condition, setting mode condition, selected display unit and error codes. Display colour can be a single colour with red or green or a two-colour display in which green and red are switched according to the output.
The unit is suitable for general purpose liquids and has a current output of 4-20mA with excellent noise resistance and suitability for longer wiring.
Plug-type connectors eliminate wiring and maintenance hassles and raised rubber button controls provide for easy operation. Different coloured display panel frames make it easy to distinguish between the ZSE 30 vacuum pressure (blue) and the ISE 30 positive pressure (grey).
As with other models in the ZSE/ISE Series, the ZSE/ISE 30 has a high speed response time of 2.5ms or less, complemented by an 'anti-chattering' function, allowing the response time to be varied up to 1280ms according to the circuit in which it is used.
This prevents momentary pressure variations from being detected as abnormal.
An 'auto shift' function enables the set values being monitored to move according to fluctuations that occur due to varying compressed air demand over the working day.