804-R010-330 datasheet(12/32 Pages) MAGNETROL

12 / 32 page

50-604 Kotron Model 804 Sentinel II RF Level Transmitter

2.3

Electrostatic Discharge (ESD)

Handling Procedure

Magnetrol/STIs electronic instruments are manufactured

to the highest quality standards. These instruments utilize

electronic components which may be damaged by static

electricity present in most work environments. The follow-

ing steps are recommended to reduce the risk of compo-

nent failure due to electrostatic discharge:

1. Ship and store circuit boards in anti-static bags. If an anti-

static bag is not available, wrap board in aluminum foil.

Do not place boards on foam packing materials.

2. Use a grounding wrist strap when installing and

removing circuit boards. A grounded workstation is

also recommended.

3. Handle printed circuit boards only by the edges. Do not

touch components or connector pins.

4. Ensure that all electrical connections are completely made

and none are partial or floating. Ground all equipment to

a good, earth ground.

2.4

Wiring

2.4.1 Wiring Power Supply Board

For connection of power and control circuit, 16–22 AWG

stranded wire is acceptable. Refer to Figures 6 and 7 for

power supply board layout and terminal locations.

2.4.1.1 Power wiring

1. Ensure that power source is turned off from unit.

2. Pull the power supply wires through the conduit

connection.

3. Connect the positive (hot) supply wire to the L1 on

terminal block TB1.

4. Connect the negative (neutral) supply wire to the L2/N on

terminal block TB1.

5. Connect the ground wire to the green screw in the

housing base.

2.4.1.2 Discrete output wiring

NOTES: Output #1 may be used as a dedicated diagnostic alarm.

Any or all outputs can be used for LEAD/LAG pump

sequencing.

Figure 6

Logic Board Terminal Connections

4–20 mA

terminals

RS-485

terminals

Active/Passive

switch selectors

Passive

Manual

self-test

(+)

(–)

}

Active

}

Remote

contact

}

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