Liquid Controls
Sponsler, Inc.
IT400 Remote Totalizer & Rate Indicator
Page: 3
DOC#:
MN-IT400-R2c.doc
Wiring and Hookup Diagrams
The
IT400
has many connections all made through the bottom/mounting board. It is
recommended to remove the battery when connecting wires to the connectors and when plugging
the connectors into their sockets.
Wiring
In order to maintain the rated CE marking, the following practices must be followed:
•
All wires connected to the
IT400
must be shielded (exception: SI supplied signal cable).
o
All shields must be connected to one of the internal mounting screws to achieve their
ground connection.
o
It is recommended that the non-
IT400
end of these shields is left unconnected. This
will help avoid ground loops and unexpected behavior.
o
It is recommended that only one spade type terminal be used on each of the screws.
Care should be taken to avoid shorting any spade with other circuitry on the mounting
board. If a longer screw is needed to attach the shielding spade, then the screw
must be chosen to ensure at least one extra thread of space behind the screw. The
hole depth is approximately 0.250 inches.
o
Shields should not cover more than one pair of signal wires at a time.
•
The
IT400
’s chassis must be connected to an earth ground via the screw attached to the
outside of the unit. At least a 12 AWG preferably green wire is recommended.
•
All connections are to be made to the unit via rigid conduit.
•
All connected wires must not exceed 98’ length.
•
DC powered devices requiring the CE marking must be 4-20mA loop powered.
If no wires are required for a particular installation; the only requirement is the chassis ground
connection.
Battery Removal and Installation
Battery Replacement: The internal battery may only be replaced with one of two batteries:
- E8010 from Liquid Controls Sponsler, Inc.
- TL-5930/F from Tadiran Batteries, Ltd.
Battery Removal: Unscrew the
IT400
cover, press and hold the menu button until the option to
reset the totalizer appears, the totalizer/grand totalizer/service timer will be saved to memory.
Using two fingers inserted in the slots on the top and bottom of the main board overlay, gently rock
the board top to bottom while pulling straight out. If this is done too quickly or unevenly, the main
board will be damaged. After the main board is removed, the battery is accessible by opening the
hook-loop strap. Once the battery is loose, the battery clip is removed by compressing the locking
tab on the connector (locking tab is on the top of the connector {J3}) and pulling it out.
Battery installation: Reverse the process for installation. Ensure the battery connector key is in the
proper orientation prior to insertion.
