Neptune HP Turbine, Руководство по установке и обслуживанию, Страница: 12 / 14

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HP TURBINE INSTALLATION AND MAINTENANCE GUIDE
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Refer to meter installation instructions.
The complete UME should be returned for service to Neptune. If the customer does not have a spare unit, a factory-calibrated
exchange unit may be purchased from Neptune. Neptune encourages all customers to purchase either a spare UME complete
or a UME exchange contract to enable them to avoid service interruptions.
ADJUSTING THE HP TURBINE CALIBRATION VANE
Neptune equips all HP Turbine meters and UMEs with a calibration vane. Should the turbine element require field calibration,
follow these steps:
1-1/2” and 2” HP Turbines
1 Cut seal wire and remove tamper resist cap.
2 Loosen lock nut by turning counter-clockwise.
3 Insert slotted screwdriver into slot in top of adjusting stem and
a Turn clockwise to decrease registration, or;
b Turn counter-clockwise to increase registration.
Turning the adjustment stem 3 in either direction results in approximately 1% change in registration. The full range of the
calibration vane is 30 degrees (see Figure 2.2).