20
a minimum from other cables. To avoid mechanical damages, it is
recommended to place all cables in metal tubes or sleeves.
With presence of high-level electromagnetic interference (for
instance, from a thyristor controller)
IT IS FORBIDDEN
to lay the cables
without putting them into properly grounded (neutrally earthed) metal
tubes or sleeves.
2.3.6.3. It is recommended not to coil the excessive cables.
2.3.6.4. Prior to connection, cut insulation from cable ends. The cables are di-
rected via cable-through holes and attached to the connectors accord-
ing to the Wiring diagram given in Fig.B.1, see Appendix B. Refer to
Fig.A.2 of Appendix A for orientation of the connectors on the Meas-
urement and Calculation Board.
2.3.7. Dismounting
To dismount the flow meter, do the following:
- Cut off liquid flow in the relevant pipeline section, ensure there is no
pressure in the pipeline and drain the liquid
- Disconnect a lithium battery
- Disconnect cables leading to the CS
- Dismount the flow meter.
When the device is dispatched for calibration or repair, the PS and
emitting surfaces of built-in PEAs should be cleaned off sediments,
residue, scale, etc.
2.4. Putting into operation
2.4.1. Start-up works shall be performed by the manufacturer or by an entity
certified for performing works of this type.
2.4.2. The pipeline is filled with liquid to be controlled. Connects a lithium bat-
tery and the flow meter is connected to a PC, and configured according
to the instructions listed in section 4.1 of the present manual.
2.4.3. At first power-up or after a long break in operation, the flow meter be-
comes operational after all hydraulic processes in the pipeline related to
flow adjustment (draining, flow cut off, etc.) are fully completed.
2.4.4. When putting the flow meter into operation check the following:
- The flow meter and related equipment are connected in accordance
with the selected wiring diagram
- Output operates in the preset modes.
After putting the flow meter into operation, two fixing screws ac-
cessed from the CS front panel side can be sealed to protect the
equipment from unauthorized access.
Содержание BUF
Страница 1: ...BATTERY POWERED ULTRASONIC FLOW METER AFLOWT BUF VERSION BUF 311 OPERATION MANUAL ISO 9001 2008 ...
Страница 2: ...2 Manufacturer quality management system is certified to ISO 9001 2008 URL http www aflowt com ...
Страница 31: ...31 APPENDIX B Wiring diagrams Fig B 1 BUF Flow meter wiring diagram ...