PSS FlowTrue — Installation Instructions

Parts Identification (Fig. 1)

Health & Safety

• Designed only as a flow meter for mechanical seals using water; install by competent engineering personnel with all isolations in place.
• Do not exceed the maximum design pressure or operating limits; where over-pressurization is possible, fit a suitable protection device.
• Supply connections can get hot in operation. Make sure the unit is completely leak free before full operation.
• At end of life, dispose of the barrier fluid and system according to local regulations.

Installing & Commissioning

1. Flush new or renewed water supply lines so no harmful particles pass through the valve and seal. Keep the water supply closed for steps 2 - 5.
2. Mount the FlowTrue free from vibration, close to the pump, where it is easy to read and maintain.
3. Connect the hose from the water supply to connection (I), and from connection (J) to the mechanical seal.
4. With the flow valve (H) closed, set the red target flow indicator (C) to the desired flow rate with the 2.5mm Allen key (G).
5. Switch on the water supply and open the flow valve (H) until the white left-hand ring (D) lines up with the red indicator (C).

Alarm Option

1. Remove the alarm label from the top of the unit, fit the alarm with the screws supplied and wire it to a suitable control panel.
2. With the Allen key (G), set the flow control valve (H) so the indicator ring (D) shows the minimum acceptable flow: this is the flow alarm value.
3. Loosen the screws, move the alarm to the far left of its slot, then right until its light comes on, and tighten it there.
4. Set the target flow indicator (C) to the desired flow and adjust valve (H) until ring (D) lines up with it.
5. The alarm light stays on until flow drops below the alarm value, which triggers the alarm device on the control panel.