These pressure switches maintain a constant pressure around a chosen set value: regulator action. They trigger an alarm or safety system, when the pressure reaches a critical pre-set value.ImportantNormal operation must be between 10% and 90% of the selected scale. The deadband values in the table overleaf are defined under these conditions.Any pulsating circuit must be fitted with pulsation dampeners. Suitable separators must be used with incompatible process fluids.
