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Temperature Spot Sensor Module
Overview
High-precision temperature measurement using NTCs, RTDs, thermocouples, and IR for industrial monitoring. The module supports up to eight contact-based channels and one non-contact infrared channel, covering a wide temperature range from cryogenic to high-heat applications. Each channel is individually configurable for sensor type, sampling rate, and alarm thresholds.
Features
- 4x NTC, 2x PT100, 2x Type-K -- Eight contact measurement channels spanning diverse temperature ranges, from precision low-temperature NTC monitoring to high-temperature thermocouple applications.
- 16-bit ADC conversion -- High-resolution analog-to-digital conversion ensures accurate readings with minimal quantization error across the full measurement range.
- IR non-contact measurement -- Infrared pyrometer channel enables temperature monitoring of moving parts, electrically live components, or surfaces in hazardous locations.
Key Specifications
| Parameter | Value |
|---|---|
| NTC channels | 4 (range: -40 to +125 C) |
| PT100 channels | 2 (range: -200 to +850 C) |
| Type-K channels | 2 (range: -200 to +1250 C) |
| IR channel | 1 (range: -40 to +380 C) |
| ADC resolution | 16-bit |
| Accuracy (PT100) | +/-0.1 C |
| Accuracy (Type-K) | +/-1.5 C |
| Interface | RS-485 (Modbus RTU) |
| Supply voltage | 5 V (from Edge backplane) |
Applications
- Motor bearings and gearboxes -- Continuously monitor bearing and gearbox housing temperatures to detect lubrication breakdown, overloading, or incipient bearing failure before damage occurs.
- Ovens, furnaces, and welding -- Track process temperatures in thermal treatment, curing, and welding operations where precise temperature control directly affects product quality.
- Moving parts and hazardous areas (IR) -- Measure surface temperatures on rotating shafts, conveyor belts, and electrically live busbars without physical contact using the infrared channel.
Edge Integration
Publishes all temperature channels over RS-485 using Modbus RTU with computed gradients, rate-of-change metrics, and configurable alarm thresholds. Each channel can be individually named and assigned alert levels through the Edge web UI. Auto-discovery registers the module and its channel configuration automatically.