Unit : mm (approx. inch)

A

(0.98)

B

 

 

 

 

 

 

 

A

B (2.17)

 

SA

25

 

 

(1.97)

SB

 

 

 

 

 

55

C

 

 

 

 

50

C

(2.76)

60 (2.36)

90 (3.54)

 

 

 

90 (3.54)

White

 

Black

 

Red

70

 

 

White

Black

Red

 

 

 

 

 

 

 

 

 

On the

 

150

(5.9)

8(0.3) max.

 

 

 

8 (0.3) max.

150

(5.9)

On the

 

 

5

 

 

 

 

 

 

5

 

 

 

converter

 

 

 

 

 

 

 

 

 

 

flowtube

side

 

 

 

 

 

 

 

 

 

 

side

 

 

 

 

 

 

L (Specified Dimensions)

 

(0.4)10.5

 

 

 

 

 

 

 

20 (0.8)

 

 

 



 

 

 

AXFC

F0402.EPS

Figure 4.2.2 Treatment of Dedicated Signal Cables

CAUTION

4. WIRING

6 to 12mm (0.24 to 0.47 in.) for optional code EP

Nominal Cross Section (Single wire): 0.5 to 2.5 mm2

Nominal Cross Section (Stranded wire): 0.5 to 1.5 mm2

In case of power cable, Green/Yellow covered conduc- tor shall be used only for connection to PROTECTIVE CONDUCTOR TERMINALS. Conform to IEC227, IEC245 or equivalent national authorization.

Unit : mm (approx. inch)

Crimp Terminal

EX1

EX2

EX1

EX2

85 (3.35)

85 (3.35)

On the converter side

On the flowtube side

As crimp terminals A, B, SA, SB and C have their own electrical potentials, securely insulate them so as not to come in contact with one another.

To prevent a shield from coming in contact with another shield or the case, cover each shield with a vinyl tube or wrap it in vinyl tape.

NOTE

Conductors A and B carry the signal from the electrodes, and C is at the potential of the liquid (signal common). Shields SA and SB are kept at the same potentials as the individual elec- trodes (these are actively driven shields.) This is done to reduce the effect of the distributed capacitance of the cable at long cable length. Note that, since the signals from the individual electrodes are impedance converted inside the converter, errors will result if they come in contact with any other component. Great care must be taken in the cable end treatment.

(2)Excitation Cable/Power Cable/Output Cable

Use polyvinyl chloride insulated and sheathed control cables (JIS C 3401) or polyvinyl chloride insulated and sheathed portable power cables (JIS C 3312) or the equivalent.

Outer Diameter: 6.5 to 12 mm (0.26 to 0.47 in.)

7.5to 12 mm (0.30 to 0.47 in.) for optional code EG, EU and EW

F0403.EPS

Figure 4.2.3 End Treatment of Excitation Cable

NOTE

For excitation and power cables, always use a crimp terminal with an insulation cover.

Use crimp tools from the manufacturer of the crimp terminal you want to use to connect the crimp terminal and cable.

Use crimp tools that are appropriate for the diameter of the cable to be connected.

4.3 Wiring Ports

This instrument is of watertight construction as stipulated in JIS C0920-1982 (Tests to prove protection against ingress of water and degrees of protection against ingress of solid objects for electrical equip- ment.) It is shipped with a wiring bracket (waterproof gland or waterproof gland with union) or a plastic gland attached, only in cases where an optional specification is selected for the wiring port.

4-2

IM 01E20C01-01E

Page 12
Image 12
APC AXFA11G user manual Wiring Ports, Excitation Cable/Power Cable/Output Cable, Unit mm approx. inch Crimp Terminal