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Manual Change for IM 01G05B03-01E 1st Edition : No.15-010-E  July 30 2015-00

 

 

 

 

 

 

 

 

 

This is the supplement for the original manual (No. IM 01G05B03-01E, 1st Edition) regarding the added and changed 

items. Please also refer to this supplement when you read the manual. 

 

 

Addition to the section “3.5.4 Connection of the Transducers” (page 18) : 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3) Grounding 

The connection of the cable shield will be realized as shown in the drawing below after going through the 

procedures (1) and (2) in the above. Connect the main unit to the ground through the terminal “PE” of the power 

supply terminals in the main unit. The grounding resistance should be less than 100 ohm. 

 

 

 

 

 

 

 

 

 

  (4) Connecting the Sensor ROMs 

Connect the sensor ROMs to the corresponding terminals in the main unit when connecting transducers. The 

sensor ROMs are packed and affixed to the transducers when shipped from the factory. 

Manual Change

No. 15-010-E

User’s 
Manual 

US300FM 
Ultrasonic Flowmeter

Unit : mm

(a) Main unit side

(b) Junction box side

Thin lines

(**)

Shield line

Cable
shield

(meshed)

7

±

2

13

±

3

60

±

5

52

±

5

10

±

3

7

±

2

Brown 

(*)

White

White

Perform
soldering

(*) 

Finish the brown cables as well as white cables.

(**) 

You do not connect the thin lines to any terminals.

Brown 

(*)

12

±

2

Less

than

10mm

12

±

2

Perform
soldering

Shield line

Cable
shield

(meshed)

Thin lines

(**)

Less

than

5mm

(1) Cable Finish 

The cable finish should be done as the drawings (a) and (b) 

shown in the right. 

 

 

 

(2) Cable Gland 

When tightening the gland, not only pull back the cable shield 

(meshed part) but also roll it out into a ring-shaped form and let 

it be pushed by the compression part (grey-colored plastic) so 

that the cable shield will have electrical contact with the gland 

body. Also, be sure to align the convexity part outside the 

compression part and the concavity part inside the gland body.

Refer to the drawings below. 

Gland body

Compression

part

Rubber ring

Cable shield
(ringed-shape)

Outer skin of the cable

Signal lines

Cap nut

Cutaway view of the cable gland

Outer wall of
the main unit
or junction box

Gland body 
(concavity part inside) 

Cable shield rolled out into a ring-shaped form

Compression part   
(convexity part outside) 

Components of the cable gland 

Grounding resistance 
less than 100 ohm 

GND

Sensors

Junction box

Main

unit

Transducers

Connection

cable

Connection of the cable shield

 

Yokogawa Electric Corporation 

Содержание US300FM

Страница 1: ...ite White Perform soldering Finish the brown cables as well as white cables You do not connect the thin lines to any terminals Brown 12 2 Less than 10mm 12 2 Perform soldering Shield line Cable shield...

Страница 2: ...ccurs A Tokuchu request is necessary for Submersible type However the diameter must be over 100 mm Changes to the section 3 5 5 Connection to the Power Supply page 20 AC power supply DC power supply T...

Страница 3: ...y this behavior Addition and deletion to the section 4 1 1 Key Operations page 23 and related pages Refer to the following table for the function of corresponding key operations The correct explanatio...

Страница 4: ...a wall thickness probe or some other ways and avoid mounting the transducers on such parts Attention Instructions for using Acoustic couplant weatherproof type Shin Etsu Silicone 1 COMPONENT RTV are a...

Страница 5: ...the section 14 5 Activation of a Pulse Output page 95 Maximum pulse output rate is 2 pulse per second 20 Set the Pulse Value and the Pulse Width so that the actual maximum flow in the pipe is less th...

Страница 6: ...Measuring Input One or two dual Channel A Channel B Current Output One or two Range 4 to 20 mA Load resistance 0 to 500 Note The current outputs may temporarily turn unstable during the power on seque...

Страница 7: ...tion only for test service maintenance purposes Time Programmable Measurement Function Automatic start stop of the measurement without human operation using internal clock for specific systems Can be...

Страница 8: ...suring data set in graphic format Marker type and color for each line of values selectable Scales for time axis and value axis can be changed from default condition of automatic scaling Graph printing...

Страница 9: ...th 4 4 m 14 4 ft cable CH Large High with 4 4 m 14 4 ft cable DG Very large General with 12 m 39 4 ft cable N Always N Fixing band strap and clips 6 B For 25 to 1 400 mm 1 to 55 in Two fixing bands On...

Страница 10: ...g fixture short ruler type for transducers medium pipe size type temperature range 30 to 200 C 22 to 392 F set of two blocks with 120 mm 4 7 in ruler USPA054 Mounting fixture standard type for transdu...

Страница 11: ...flowmeter US300FM Unit mm inch Transducers US300FT B Transducers US300FT C US300FT D Transducers X m inch Y m inch X Y m inch Weight kg lb US300FT B 2 0 78 7 1 0 39 4 3 0 118 1 0 9 1 98 US300FT C 2 0...

Страница 12: ...annel A P1 P1 Current output AR ARS Upstream transducer signal for channel A P2 P2 Current output when specifying two current outputs BV BVS Downstream transducer signal for channel B P3 P3 Frequency...

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