Tech support

Product Manual

The current product manual is v3.1 – download. Please also check out our Quick Start Guide and its TN11 Alternate Methods companion sheet. Please check them out before starting your installation!

Application Notes

AN01 – How to use the fault relays to detect loss of power, or loss of LIT
AN04 – installing two Fogrods with one LIT – for example the “10 ft” or “15 ft” Fogrod, which is made up of two 5′ or two 7.5′ Fogrods

Tech Notes

TN02 – The Short Fogrod system
TN03 – Cable Splice Shield
TN04 – The Short Fogrod and Relays
TN06 – Fogrod/LIT 4-20mA output reference
TN07 – How to check the analog output of the LIT
TN09 – Latching relays: LIT-100 and common relays configured to latch ON
TN10 – Latching relays: LIT-100 and External Latching Relays

TN11 Alternate Methods 1.0 (PDF) – Companion to the TN11 quick-start sheet. Shows the required shielded-cable routing and connections for DC+, DC- and FOGRod Return when panel restrictions prevent the individual-wire routing specified in TN11. Includes drain-wire grounding details. Tightly bundling with AC power wires is not permitted.

Most Common Causes for Site Problems

1. LIT-100 DC wires routed near and/or bundled with AC power wires, this includes; DC+, DC- and FOGRod Return wires.
2. LIT-100 internal fuses blown. These fuses are not user serviceable.
3. LIT-100 Terminal blocks and/or circuit board damaged.
4. LIT-100 FOGRod Return not connected to panel ground.

Site Faults & Problems Associated with Causes 1-4 Listed above

1. LIT-100 unstable operation, LIT-100 not detecting level correctly, LIT-100 indicating ‘Cable Open-Circuit’ fault, LIT-100 indicating ‘Wiring or Contact Fault’.
2. LIT-100 power LED will not turn ON or LIT-100 will not detect any level in the well.
3. One or more LIT-100 Level LEDs not indicating level, one or more non-consecutive Level LEDs blinking ON/OFF with higher Level LEDs indicating correctly.
4. None of the LIT-100 Level LEDs indicate level in the well.

How to Prevent the Most Common Site Problems Listed Above and Several not listed

Thoroughly review technical note TN11 FOGRod and LIT-100 QUICK START DOs and DONTs.

Download TN11 HERE, if you don’t have a copy. TN11 is an illustrated 2-sided sheet clearly showing correct installation methods on side 1 and on side 2, the most common errors when installing a system. You can also Refer to the FOGRod & LIT MANUAL V3.1 which you can download HERE. The manual covers everything shown on TN11 with much more detail.

SPECIAL NOTE: If it is not possible to route the DC+, DC- and FOGRod Return wires away from AC power wires, a multi-conductor SHIELDED cable should be used. Ground the shield at the DC power supply end ONLY, not at the LIT-100 end.