A1 – Linear Temperature Indicator

Overview
The A1 Linear Temperature Indicator is a compact and reliable digital instrument designed to provide accurate linear Temperature readings from a wide range of sensor inputs. Ideal for use in industrial processes, laboratories, and control panels, it offers clear digital readout, dependable performance, and robust construction for continuous Temperature monitoring.

Working Principle
The indicator receives input from thermocouples (J, K, R, S, B) or RTDs and displays the corresponding Temperature on a bright red LED display. It includes cold junction compensation for thermocouple inputs and automatically detects sensor disconnection (open sensor condition). The unit is designed to deliver linear output readings with stable performance under varying environmental conditions.

Key Features

• Sensor Input Compatibility: J, K, R, S, B Thermocouples and RTD (PT100) – Optional

• Display: 3½ Digit, 7-Segment Red LED for clear visibility

• Accuracy: ±2°C

• Resolution:

  • 1°C for Thermocouples

  • 0.1°C for RTD

• Sensor Break Protection: Automatic open-sensor indication

• Cold Junction Compensation: Built-in, 0°C to 70°C range

• Power Supply: 180 – 230 V AC, 50/60 Hz

• Input Channels: Single-channel input

• Enclosure Dimensions: 72 mm × 144 mm (Panel Mount)

Applications

• Temperature Monitoring Panels
• OEM Equipment
• Industrial Temperature Control
• Laboratory Instrumentation
• HVAC Systems
• Packaging & Plastic Machinery