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HVAC, Plumbing, Electrical, or other field serviceDiagnostics & Troubleshooting4HighField Technician$ implied

Persistent false inputs from proximity switches due to high bleed-through voltage at an asphalt plant, despite multiple mitigation attempts.

Standard relay and resistor solutions fail to eliminate phantom inputs caused by bleed-through voltage in a non-PLC control system (MINDs/Martin System). No off-the-shelf product addresses this specific high-bleed scenario.

Severity

4High

Willingness to Pay

implied

Added

May 2, 2026

Workarounds Described

Installed slice relay but got chatter shorting the prox
Installed 500 ohm resistor on the relay coil but still got 80V bleed
Installed 8-pin ice cube relay, voltage dropped to 9V but still phantom input

Implied Software Gaps

Signal conditioner that intelligently filters bleed-through and prevents false inputs

App Concept

BleedGuard Filter Module

BleedGuard is a specialized inline signal conditioner that filters out bleed-through voltage on proximity switch inputs for non-PLC control systems. It features adjustable threshold detection, coil chatter suppression, and robust isolation to prevent false inputs. Unlike generic relays or resistors, BleedGuard is designed for high-bleed environments like asphalt plants.

Key Features

Adjustable voltage threshold (10-120V) to ignore bleed-through
Built-in debounce circuit to prevent relay chatter
Galvanic isolation between sensor and control card
Compact DIN-rail mount for easy integration
High-temperature rated for industrial environments

Target Users: Electrical technicians and field service engineers maintaining asphalt plants, aggregate plants, and similar industrial sites with non-PLC control systems (MINDs, Martin Systems). Typically works for companies with 1-10 service technicians.

Revenue Model: $149 per unit one-time purchase, with volume discounts for bulk orders

Existing Solutions Mentioned

Slice relayIce cube relayResistor in series with input card

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