50-604 Kotron Model 804 Sentinel II RF Level Transmitter
9
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
(+)
A
B
(–)
}
Active
}
Remote
contact
}
To Next Page
Loading...
Need help?
General
