Data Industrial 228PV40 Посібник користувача - Сторінка 7
Переглянути онлайн або завантажити pdf Посібник користувача для Аксесуари Data Industrial 228PV40. Data Industrial 228PV40 11 сторінок. Plastic tee type flow sensors
Друкувати сторінкуImpeller Assembly and Shaft Replacement
If you are replacing an existing Data Industrial sensor and have already calibrated your flow monitor/transmitter,
no calibration changes are necessary. For installation of a new flow monitor or for relocation of a sensor in a
new pipe size, please refer to the calibration instructions in flow monitor manual.
1) Depressurize pipe from which sensor is
to be removed.
2) Remove the clevis pin.
3) Remove the sensor from the tee.
4) Note the impeller blade orientation
relative to flow arrows. In order to
maintain proper calibration, the impeller
will have to be reinstalled in the same
manner with the impeller blades pointing
toward the flow source as indicated by
the flow arrows.
5) To remove the old impeller blade
assembly, push the old shaft out of the
sleeve with the new shaft (or small
diameter rod) just far enough to grab
the end with a pair of pliers and pull the
shaft completely out. The impeller assembly will now be free, and will drop out.
6) Inspect the shaft and bearings for wear, and replace as necessary.
7) Refer to Figure 1. To reinstall, position the impeller in the cavity oriented as in Step 4 so that the impeller
blades point into the flow direction. The flow direction arrow on the top of the sensor housing should point
downstream with the impeller blades pointing upstream.
8) Carefully push the shaft through the housing and impeller, taking care not to damage bearings. Make sure
that the shaft is inserted far enough so that it clears the housing on each side of the impeller housing.
NOTE: If shaft is not carefully installed, the bearing can be deformed, preventing free rotation.
9) Inspect the O-rings for damage and replace as necessary. Clean the O-rings and the sleeve and relubricate
with silicone grease from the packet provided, or use some other acceptable lubricant.
10) Install the sensor into the tee so the flow arrows points in the direction of the actual flow.
11) Install or replace the clevis pin.
13) This completes the replacement procedure. The system may now be repressurized and tested.
Data Industrial
Plastic Tee Type Flow Sensor
Figure 1
Impeller Assembly and Shaft Replacement
NOTE DIRECTION OF ARROW
USE PLIERS HERE
Manual
NOTE DIRECTION OF
IMPELLER
USE METAL PIN TO
REMOVE CERAMIC SHAFT
7