Neptune HP PROTECTUS III, Installation And Maintenance Manual

Page: 30 / 68

5. Inspect the o-ring on the new UME for damage.
6. Install the factory-calibrated UME into the maincase.
Figure 8 – Unitized Measuring Element (UME)
7. Replace and tighten the cover bolts.
Before putting the HP PROTECTUS III back into service, complete the following steps.
1. Turn the air bleed screw on the detector knuckle valve and strainer cover counter-
clockwise one to two turns.
2. Slowly open the mainline inlet side gate valve to pressurize the meter.
3. Close the air bleed screws (clockwise), when air is completely vented and water begins to
run smoothly from the bleed screw.
4. Slowly open the outlet side gate valve, until the downstream line is pressurized.
5. Slowly open the upstream ball valve on the bypass to pressurize the bypass meter.
6. Slowly open the downstream ball valve on the bypass.
All UMEs have been factory tested and do not require field calibration. You can purchase a
factory-tested UME directly from Neptune or one of its authorized distributors. Neptune
encourages all customers to purchase a spare UME to avoid service interruptions.
16 HP PROTECTUS
®
III Installation and Maintenance Guide
Chapter 4: Maintenance and Troubleshooting