EDI LMA-1800 and LMA-1800-LP Loop Detectors Manuals & Support

The EDI LMA-1800 is a single channel DEFLECTOMETER loop detector that plugs into a gate operator 10-pin Molex detector port. It has two programmable solid-state outputs and runs on 10 to 30 VDC or 14 to 26 VAC.

The DEFLECTOMETER display shows the detection level so sensitivity can be set to catch every vehicle. The LMA-1800-LP is the low power version for solar and battery operators.

Buy the LMA-1800 / LMA-1800-LP (4 options)

Identify your model

Both are 2.30 x 2.75 x 0.80 in with a rear 10-pin Molex connector (09-48-1104). LP is printed on the low power model. The discontinued LMA-1500 and LMA-1500-LP are replaced by these models.

Key specs

Channels	1 loop, 2 solid-state outputs
Outputs	Open collector, 100 mA at 30 VDC
Power	10 to 30 VDC or 14 to 26 VAC
Connector	10-pin Molex
Sensitivity	10 levels
Loop frequencies	4
Loop inductance	20 to 2,500 µH
Operating temperature	-30 to 165 °F

Manuals and documents

Installation Manual

LMA-1800 Operating Instructions
2 pages View PDF: LMA-1800 Operating Instructions (opens in a new tab)
LMA-1800-LP Operating Instructions
2 pages View PDF: LMA-1800-LP Operating Instructions (opens in a new tab)
Loop Installation Guide
8 pages View PDF: Loop Installation Guide (opens in a new tab)
General Loop Installation Guidelines
2 pages View PDF: General Loop Installation Guidelines (opens in a new tab)

Spec Sheet

LMA-1800 Cut Sheet
2 pages View PDF: LMA-1800 Cut Sheet (opens in a new tab)
LMA-1800-LP Cut Sheet
2 pages View PDF: LMA-1800-LP Cut Sheet (opens in a new tab)
LMA-1500 Cut Sheet
2 pages View PDF: LMA-1500 Cut Sheet (opens in a new tab)
LMA-1500-LP Cut Sheet
2 pages View PDF: LMA-1500-LP Cut Sheet (opens in a new tab)

Troubleshooting

Gate does not open or reopen

Check the detect LED when a vehicle is on the loop.
Raise the sensitivity one step at a time.

Detector stays in detect

Check the loop and lead-in for a break or short to ground.
Reset the detector so it retunes.

Random detects

Set nearby detectors to different frequencies.
Check that the lead-in is twisted and the saw cut is sealed.

Common questions

Operators with a 10-pin Molex detector port, such as many LiftMaster/Elite, All-O-Matic, Linear, Viking and Apollo models. Check the EDI cut sheet list.

Use the LMA-1800-LP on solar and battery operators.

Use direct-burial loop wire such as 16 AWG XLPE, not THHN. Twist the lead-in about 6 turns per foot and seal saw cuts with loop sealant.