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Graco S3000 — правильная установка и заземление расходомера для безопасности [9/24]

Graco G250HR [9/24] Meter cables and adaptor

Installation

308778U 9

Grounding

1. Ground the flow meter by connecting a grounded

cable to the meter housing or sensor.

Have a qualified electrician check the electrical

grounding continuity between the flow meter sensor

and a true earth ground; remove the cable connec-

tor from the sensor and measure the resistance

from the cable connector Pin 2 to true earth ground.

Refer to F

IG. 3.

If the resistance is greater than 25 ohms, check the

cable ground connection. Refer to F

IG. 3. Recon-

nect the ground sheath or replace the cable. Do not

operate the system until the problem is corrected.

2. Always ground the meter, using one of the following

options:

a. Mount the meter to a grounded conductive sur-

face, or

b. Connect the conductive fluid hose to the meter

inlet and outlet, or

c. Connect a ground wire to the meter's M6

mounting holes.

3. Never use the flow meter with an electrostatic gun

isolation stand.

Meter Cables and Adaptor

See Table 1 for available meter cables or the adaptor for

use with cables with a black plastic connector and a

replacement sensor.

The equipment must be grounded to reduce the

risk of static sparking and electric shock. Electric or

static sparking can cause fumes to ignite or

explode. Improper grounding can cause electric

shock. Grounding provides an escape wire for the

electric current.

FIG. 3

TI26838a

1 +10-30 Vdc Supply (red)

2 Ground (black)

3 Signal Out (white)

Table 1: Meter Cables

Cable Part No. Length Ferrite Platform

17C743 5 ft (1.52 m) Various

17C910 42 in. (1029 mm) 15D906 ProMix 2KS

17C887 6 ft (1.83 m) Various

17C888 50 ft (15.25 m) Various

17C889 150 ft (45.75 m) Various

24Y434 Adaptor - Not included with cables (see note)

NOTE: These cables have a metal connector, which will only mate with a sensor that

also has a metal connector. Adaptor 24Y434 is required to connect an existing cable

with a plastic connector to a replacement sensor, which has a metal connector.

Adaptor 24Y434 purchased separately.

Graco S3000 — правильная установка и заземление расходомера для безопасности [9/24]

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