EDI LMA-1800 Plug-In Vehicle Loop Detector, Low Voltage, Dual Solid-State Outputs
The LMA-1800 is a plug-in inductive loop detector used when a gate or access-control system needs a clean vehicle call from a buried loop. It is commonly used for exit loops, safety loops, shadow loops, and hold-open loops where the operator expects a low-voltage detector with solid-state outputs. The front DEFLECTOMETER display is useful in the field because it gives a technician feedback on loop frequency, sensitivity, and fault history instead of leaving the detector setup to guesswork. This helps when a customer is dealing with intermittent detection, motorcycles not being picked up, false calls after rain, or loop crosstalk between nearby lanes.
This product is best selected by matching the exact part number and the job-site wiring, not just by appearance. EDI detector families include low-voltage, high-voltage, low-power, solid-state-output, relay-output, fail-safe, and fail-secure versions. Those details affect how the detector powers up, how it reports a vehicle, and how it behaves when the loop is open, shorted, or out of range.
Compatible With
This item may be used with the following products, systems, or application groups when the original part number, voltage, connector style, and wiring match:
- All Linear operators with APeX controller
- Linear / OSCO SL and SW series operators with compatible plug-in detector sockets
- Advanced Access Automation / FAAC CSL2000, CSW2000, and RSW1000
- All-O-Matic SL100-DC; commonly associated with SL150DC, OH200DC, SW300DC, and SW350DC detector applications where connector style and voltage match
- Chamberlain / Elite SL3000 and CSW200 OmniBoard detector applications
- Intelligate Systems IQ500 and IQ5000
- SECOM late model operators with 10-pin Molex detector connectors
- Rotary Gate Systems SL1000R, SL1000C, and SL1000I where the LMA-1800 connector style is used
- TyMetal TYM 1000 and TYM 2000 where the detector socket matches
- Viking Access L-3, F-1, T-21, H-10, B-12, and Q-4 models when equipped for this plug-in detector style
- Apollo 4300 and 4500 operator applications commonly associated with this detector family
- Gate, parking, drive-through, exit loop, safety loop, shadow loop, and hold-open loop applications using a compatible inductive loop input
Features & Specifications
| Manufacturer | EDI Traffic / Eberle Design Inc. |
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| Product Type | Plug-in inductive vehicle loop detector |
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| Part Number | LMA-1800 |
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| Application | Vehicle detection for gate, parking, drive-through, exit, safety, shadow, and hold-open loops |
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| Compatible Operator Type | Gate, parking, drive-through, and access-control systems with matching detector socket or harness |
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| Voltage | 12 VDC, 24 VDC, and 24 VAC low-voltage applications |
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| Output / Connection | Dual programmable solid-state outputs |
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| Detection Type | Inductive loop vehicle detection |
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| Safety Monitoring | Not a photo eye or safety edge. Use only as part of a properly designed vehicle detection system. |
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| Notes | Verify original part number, voltage, connector style, output type, and operator wiring before ordering. |
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Key Features
- Automatic tuning
- DEFLECTOMETER display for sensitivity and loop frequency feedback
- Advanced loop diagnostics for open loop, shorted loop, and sudden inductance changes
- Four frequency selections to help reduce loop crosstalk
- Ten sensitivity levels
- Sensitivity boost for taller vehicles and sliding gate applications
- Loop fault memory for troubleshooting intermittent loop problems
- Wide loop inductance range commonly listed as 20 to 2500 micro-Henries
Also Known As / Related Part Numbers
- LMA-1800
- EDI-LMA-1800
- LMA1800
- LMA 1800
- LMA-1800 Series
- LMA-1800-LP low-power related model
- LMA-1500 related earlier/similar low-voltage detector family
- BASE LD-1800 commonly searched as a related/discontinued listing where LMA-1800 may ship as replacement
Technician Note
When replacing a loop detector, do not assume the detector is the only failed part. A damaged loop, wet lead-in splice, poor terminal connection, moving gate steel near the loop, or another nearby loop on a close frequency can create symptoms that look like a bad detector. The best practice is to confirm loop resistance, insulation condition, power voltage, and output wiring before replacing parts.
Before Ordering
- Match the exact part number or approved replacement reference from the original detector label.
- Confirm voltage class before applying power. Low-voltage and high-voltage versions are not interchangeable.
- Confirm connector style, harness type, and pinout before replacing a 10-pin or 11-pin detector.
- Confirm whether the application needs solid-state outputs or relay outputs.
- Confirm fail-safe or fail-secure behavior when the original detector uses an S version.
- Check loop wire, lead-in splices, and frequency separation if the original complaint is intermittent detection or false calls.
- Do not use a loop detector as a substitute for required monitored photo eyes, safety edges, or other entrapment protection devices.
Professional Advisory
Loop detector wiring is often located inside the same cabinet as operator power wiring. If the cabinet has high voltage, damaged wiring, water intrusion, missing safety devices, or unpredictable gate movement, the system should be inspected by a qualified gate technician before replacement parts are installed.
Product Q&A
What does the EDI LMA-1800 do?
The LMA-1800 monitors an inductive loop in the pavement and sends a vehicle detection signal to a compatible gate, parking, or access-control operator.
Is the LMA-1800 the same as the LMA-1800-LP?
No. They are related models, but the LMA-1800-LP is the low-power version for solar or battery-conscious installations. Match the original part number and power requirement.
Can this detector be used for exit and safety loops?
Yes, it may be used for exit, safety, shadow, or hold-open loops when the operator wiring and detector socket match the application.
Why does the DEFLECTOMETER display matter?
It helps set sensitivity, read loop frequency, and review loop fault conditions, which makes troubleshooting easier than using a detector with only basic LEDs.
What should be checked before replacing an LMA-1800?
Check the original detector number, operator model, connector style, supply voltage, loop condition, and whether the system uses solid-state outputs.
