Modline 4

Category: Modline series/Ircon

Key features

Ircon Modline 4 infrared sensor
Ircon Modline 4 infrared sensor
  • Infrared pyrometer temperature range: -50°C to 1300°C
  • Self-contained, standalone IR sensor
  • Versatile, easy-to-install, two-wire transmitter
  • Stable drift-free operation
  • Provides 4-20 mAdc linear temperature output
  • Emissivity & response time adjustment build-in
  • Optional Peak Picker Filter
  • Operating Ambient Temperatures: 0 to 66ºC and with optional water cooling: 0 to 200ºC

Product overview

The Ircon Modline® 4 Series is an economical infrared pyrometer for OEM applications. This pyrometer requires two wires, a power supply (range of 16 to 40 Vdc) and an installed compatible output (recording or control instrument) to complete the instrument system loop. A number of instruments can be placed within the series current loop—provided that the total voltage drop for each instrument does not exceed the total loop voltage.

The Modline 4 DC operation has no moving parts, which guarantees stable performance. The solid state electronics incorporates a chopper-stabilized amplifier, which assures long term, accurate, drift-free, stable operation. The instrument is available with 3 optical resolutions, allowing it to measure spots as small as 7.6 mm (0.3“). It can be calibrated in the field using a certified black body.

The digital emissivity control allows adjustments in 0.01 increments and a response time adjustment pot (potentiometer) lets you select values from 0.15 to 10 seconds to match almost any process requirements.

An optional Peak Picker Filter is available to provide smooth temperature indications and outputs when measuring intermittent targets.

Aluminum casting rated NEMA 4 (IP56), six different spectral responses and Modline 4 mounting flanges make this IR sensor ideal for a wide variety of OEM application processes in hostile environments.


The Modline 4 sensor hardware accessories are designed to simplify installation and maintenance. Accessories include power supplies, water-cooling enclosure, TV-view digital meter with optional alarms, swivel mounting base and many more. Additional specifications and product dimensions are available in the Modline 4 product brochure.

Model overview
Spectral response
Temperature range Optical resolution Applications
Modline 22
-50...500°C 30:1 Food, textiles, coated paper, thick plastic films
Modline 43
50...500°C 30:1 Thin polycarbonate plastic films and thermoforming
Modline 44
-50...600°C 30:1 Food, textiles, coated paper, thick plastic films
Modline 45
300...1300°C 30:1 Refractory ladles, tundish and glass melters
Modline 46
250...1300°C 30:1 Non-ferrous metals and steel applications
Modline 47
100...1300°C 30:1 Glass tempering, annealing and bending
Modline 48
0...1300°C 30:1 Ceramics and thin polyester films