• 0 to 14 pH – standard glass
• 0 to 10 pH – low resistance glass Temperature range
• 0 to 100 °C (32 to 212 °F) – standard glass
• 0 to 70 °C (32 to 158 °F) – low resistance glass Pressure (flow) 0 to 60 psi at 25 °C (77 °F) Process connections
• 1/2 in or 1 in BSP
• 1/2 in or 1 in NPT Dip systems Immersion length 1 m (39 in), 2 m (78 in) or 3 m (118 in) Material of construction Glass-coupled polypropylene and polypropylene pH range
• 0 to 14 pH – standard glass • 0 to 10 pH – low resistance glass Temperature range
• 0 to 80 °C (32 to 176 °F) – standard glass
• 0 to 70 °C (32 to 158 °F) – low resistance glass O-ring material Viton Water supply Mains water Line pressure 1 to 4 bar Note. ABB does not supply the solenoid valve and recommends that the tubing between the valve and the sensor is 1/4 in ID PVC for both dip and flow systems. The solenoid valve must be mounted as close as possible to the pH system in order to reduce pressure loss in the supply line.