Milltronics ST-100 SERIES Скачать руководство пользователя страница 4

OUTLINE AND CONNECTION

DO’S AND DON’TS

VERY IMPORTANT

Do not route cable openly in raceways.

For optimum isolation against electrical noise, run cable in a grounded metal conduit with no
other cabling (except temperature sensor). Ground shield only at transceiver. Insulate shield
at junctions to prevent inadvertent grounding.

Transducer wiring must be done in conjunction with approved conduit, boxes and fittings
and to procedures in accordance with all governing regulations.

Seal all thread connections to prevent ingress of moisture.

Do not run cable near high voltage or current runs, contactors and SCR control drives.

For BASEEFA Zone 0, cable must be terminated externally to Zone 0 in an appropriate
manner. the cable must be protected against mechanical damage, and arrangements sealed
to prevent migration of atmosphere from Zone 0.

To reduce risk of electrostatic discharge, housing (except face) must be covered with copper
mesh and grounded.

95/07/11

152 mm

(6.0")

284 mm

(11.2")

229 mm

(9.0")

mounting holes
13 mm (0.5") dia.
(3 places)

radiating face

1/2" NPT
internal
thread

23 mm

(0.9")

102 mm

(4.0")

51mm

(2.0")

S
H
L
D

H
O

T

  terminal block
  in junction box

red (hot)

black

transducer cable

green

shield

to approved
ground of junction
box and conduit

shield

hot

RG62 A/U cable

Milltronics
transceiver

PL-419

2

Содержание ST-100 SERIES

Страница 1: ...ST 100 SERIES ULTRASONIC TRANSDUCER Instruction Manual PL 419 December 1994 33454190 PRR 1 1 ...

Страница 2: ...ce level measurement in line weighing of dry bulk solids and motion sensing Milltronics is established world wide through associate offices and representatives Our network is continually being refined to provide our customers with first rate sales information engineering assistance and after sales support For more details on our products and service please contact us and we will provide you with a...

Страница 3: ...hing techniques are used to optimize the transfer of power from the transducer into air and from the air back into the transducer SPECIFICATIONS Model ST 100 Measurement range typically 30 m 100 ft restricted to transceiver maximum Temperature range 40 to 93 C 40 to 200 F Frequency typically 44 KHz transceiver dependent Beam angle 7 Weight 15 9 Kg 35 lb Construction aluminum housing with polyureth...

Страница 4: ... cable near high voltage or current runs contactors and SCR control drives For BASEEFA Zone 0 cable must be terminated externally to Zone 0 in an appropriate manner the cable must be protected against mechanical damage and arrangements sealed to prevent migration of atmosphere from Zone 0 To reduce risk of electrostatic discharge housing except face must be covered with copper mesh and grounded 95...

Страница 5: ... tightening of the mounting hardware is sufficient On liquid applications the transducer must be mounted so that the axis of transmission is perpendicular to the liquid surface Avoid aiming into vortexes Where the transducer is mounted to a standpipe the inner standpipe surface and end must be smooth and free of burrs ridges and seams Consider the optional temperature sensor when mounting the tran...

Страница 6: ...etail bolt washer rubber washers or grommet mounting plate or blind flange washer nut Blind Flange Flanged conduit connection blind flange spacer gasket nut and bolt assembly standpipe Flange gasket and hardware supplied by customer Refer to Liquid Applications Standpipes Customer flanged standpipe If a metal flange must be welded to pipe refer to Liquid Applications Standpipes PL 419 4 ...

Страница 7: ...sible As a rule of thumb the 3 dB cone of the sound beam should not intersect the standpipe wall in applications opening into a vessel or larger area Otherwise additional blanking will be required to compensate for the interference zone created by the opening no additional blanking required flanged transducer no intersection vessel no vessel no additional blanking required standpipe sound beam int...

Страница 8: ...beam must be perpendicular to liquid surface If standpipe is used refer to Liquid Applications Standpipes 3 Echo has missed improperly leveled transducer 4 When performing an empty or full calibration the tank must contain its normal vapour and be at its normal temperature tank manufacturer s empty level discharge run empty level for alternate location Below this level echo would reflect away from...

Страница 9: ...seams structural members and wall irregularities Otherwise refer to transceiver manual 3 Transducer too close to material inlet Falling material will intersect sound beam and cause erroneous readings or loss of echo minimal angle of repose transducer discharge 4 On fluid like solids aim transducer perpendicular to material surface 5 On dual discharge bins aim each transducer at the discharge point...

Страница 10: ...ITH AGITATOR 1 Transducer should be kept away from infeed 2 Where agitators are in use use the Agitator Discrimination parameter on transceivers where available 3 Transducer should be aimed away from wall projections infeed agitator PL 419 8 ...

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