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Multi-Channel Infrared Temperature Monitoring System RS485/Modbus


Infrared System | Infrared Monitoring System | OS-MINIHUB

Infrared System | Infrared Monitoring System

See All Models Below

  • Miniature Non-Contact Temperature Sensors with RS485 Modbus Communications
  • Touch Screen Display Optional for Configuration, Display, Alarms and Data Logging
  • Low-Cost Standalone 6-Channel System
  • Build Larger Systems Using the TSD600’s Separate Modbus Master and Slave Interfaces
  • Analog and Alarm Relay Outputs via Optional Modules
  • Conforms to Industrial EMC Standards
Infrared Temperature Measurement Instruments - View related products


The OS-MINIHUB is an industrial infrared temperature monitoring system, with miniature sensing heads and optional display modules.
OS-MINIHUB sensors are designed to measure the surface temperature of non-reflective materials in industrial applications, from -20 to 1000°C (-4 to 1832°F). They are sealed to NEMA 4 (IP65), built from 316 stainless steel, and fully tested to industrial EMC standards.
They can measure food, paper, thick plastics, asphalt, paint, bulk materials and organic materials, as well as most dirty, rusty or oily surfaces.

OS-MINIHUB sensors have an operating temperature rating of up to 120°C (248°F) with no need for cooling.
The sensors measure just 45 mm (1.7") long (plus cable gland), so they can fit into the smallest of spaces.
Up to 6 sensors can be connected to the optional TSD600 interface module, which provides temperature display, configuration, and high-capacity data logging to a MicroSD Card. Analog and relay outputs are available via separate DIN rail mounted modules.
Low Cost
With up to 6 sensors connected to one TSD600, the OS-MINIHUB is an ideal low-cost non-contact temperature measurement system.
To measure more than 6 locations, OS-MiniHUB sensors and TSD600 sub-networks may be connected to an RS485 Modbus SCADA system or PLC. It is possible to measure the temperature of hundreds or thousands of locations on the same network.
The OS-MINIHUB may be installed as a new temperature monitoring system, or integrated into an existing Modbus network. With two Modbus interfaces, the TSD600 makes an ideal local display for a group of sensors as part of a larger system. The OS-MINIHUB-JB6 junction box makes it easy to connect the system together. Never miss a critical temperature event. In condition monitoring applications, the OS-MiniHUB system is an always-on solution that can replace manual checks with a handheld thermometer or expensive thermal imager.
Typical Applications
Curing Ovens Fiberglass impregnated with epoxy is cured in an oven to increase strength. OS-MiniHUB sensors are placed inside the oven at up to 120°C (248°F), to build-up a temperature profile at many points on the entire surface of the workpiece, and to communicate the measured temperature to the heating system that controls the hot air blowers in the oven. Industries include boatbuilding and aerospace as well as many others.
Industrial Bakeries
Check the temperature profile of bakery products at multiple points along a conveyor oven.
Corrugated Board Manufacturing
Monitor the web temperature along an entire corrugator, with local displays for each section of the production line, and centralized monitoring in the control room. Sensors withstand 120°C (248°F), and can be used in hightemperature areas such as single facers without cooling.
Power Distribution
Monitor the temperature of bulbar joints in switchgear cabinets. Hundreds or even thousands of points can be monitored on the same network using the OS-MiniHUB system.
A large system of OS-MiniHUB sensors can monitor the paint curing process at several points. Monitor temperatures around the entire vehicle in environmental test chambers.
Condition Monitoring
A network of OS-MiniHUB sensors can monitor all the bearing temperatures on a machine, a runout table, or the whole factory. The OS-MiniHUB is ideal for measuring the temperature of all painted metal surfaces.
Infrared Curing
Arrays of sensors fitted on a rig of infrared curing lamps ensure an even temperature profile along the part being cured. Surface coatings, paint and epoxy are ideal target materials, among many others.
Gas Cylinder Filling
Monitor temperatures to improve repeatability in the filled volume and improve filling efficiency. The temperature of every cylinder on a filling rig is easily monitored with no need to manually move contact probes.

Temperature Range: -20 to 1000°C (-4 to 1832°F)
Interface: RS485 Modbus RTU
Accuracy: ±1% of reading or ±1°C whichever is greater
Repeatability: ±0.5% of reading or ±0.5°C whichever is greater
Emissivity Setting: 0.2 to 1.0 Response Time, t90: 240 ms (90% response)
Spectral Range: 8 to 14 µm
Supply Voltage: 6 to 28 Vdc
Optional AC Power: 100 to 240 Vac, 0.3 A
Supply Current: 50 mA max
Baud Rate: 9600 baud *
Format: 8 data bits, no parity, 1 stop bit *
* Other configurations available upon request.
Configuration Method: Via TSD600 touch screen, or directly via RS485 Modbus
Configurable Parameters: Emissivity Setting, Averaging, Peak/Valley Hold Processing, Reflected Energy Compensation
Construction: Stainless Steel
Dimensions: 18 dia x 45 mm L (0.7 x 1.7")
Thread Mounting: M16 x 1 mm pitch (0.03")
Cable Length: 1 m (3.3') (longer lengths available to order)
Weight with Cable: 85 g (3 oz)
Environmental Rating: IP65
Ambient Temperature: 0 to 120°C (32 to 248°F)
Relative Humidity: 95% max non-condensing
Electromagnetic Compatibility: EN61326-1, EN61326-2-3 (Electrical Equipment for Measurement, Control and Laboratory Use - EMC Requirements - Industrial)
6-Channel Display Module

Display: 72 mm (2.83") resistive touch TFT, 320 x 240 pixels, backlit
Supply Voltage: 10 to 30 Vdc
Maximum Current Draw: 100 mA
Configurable Parameters (Global): Temperature units, date and time, data logging, graph channels, alarm logging
Configurable Parameters (per Channel): Signal processing, emissivity setting, reflected energy compensation, alarms, Modbus address
Alarm Configuration: 12 alarms (2 per sensor) with adjustable level, individually configurable as HI or LO
Temperature Units: °C or °F selectable
Temperature Resolution: 0.1°
Signal Processing: Average, peak hold, valley hold, minimum, maximum
Display Sample Period: 120 ms per sensor (720 ms in total for 6 sensors)
Logging Interval: 1 to 86,400 seconds (1 day)
MicroSD Card Max Capacity: 32 GB (not included)
Internal Clock Battery: 1 x BR 1225 3V (not included)
Variables Logged: Target temperature, sensing head temperature, alarm events
File Format: .csv (can be imported to Excel®)
Configurable Parameters: Sample period, number of samples, scheduled start date and time
Construction: Die cast aluminum
Electrical Connections: Removable screw terminals, 28 AWG to 18 AWG
Dimensions: 98 W x 64 H x 36 mm D (3.8 x 2.5 x 1.4"), excluding cable glands
Weight: 280 g (0.6 lb)
Environmental Rating: NEMA 4 (IP65)
Ambient Temperature Range: 0 to 60°C (32 to 140°F)
Relative Humidity: Maximum 95%, non-condensing
CE Marked
RoHS Compliant
Electromagnetic Compatibility:

EN61326-1, EN61326-2-3 (Electrical Equipment for Measurement, Control and Laboratory Use - EMC Requirements - Industrial)
OS-MINIHUB Specifcations
Construction: Die cast aluminum
Electrical Connections: Removable screw terminals, 28 to 18 AWG
Weight: 250 g (8.8 oz)
Environmental Rating: IP65
Enclosure Dimensions: 98 W x 64 H x 36 mm D (3.8 x 2.5 x 1.4")
(Specify Model Number)

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All prices on this site are shown in Malaysian Ringgit.
Note: For extra cable length add a suffix –{length in whole meters} i.e. OS-MINIHUB-SN21-6

Ordering Example: A Master System with 6 sensors and 4 analog outputs
Qty 5 OS-MINIBUS-SN201-3 6 sensors with 20:1 optics and 3m cable (2 extra meters ea.)
Qty 5 OS-MINIBUS-SN201-3-CALA 1 sensors with 20:1 optics, 3m cable with calibration certificate
Qty 6 OS210-FBS 6 fixed mounting brackets
Qty 1 OS210-LSTS 1 laser sighting tool to align each sensor
Qty 1 OSMINIHUB-JB6 6-channel IP65 junction box
Qty 1 OSMINIHUB-AO4 4-Channel analog output module
Qty 1 TSD600 6-channel touch screen display module
Qty 1 MINI-MSD 1 Micro-SD card for TSD600 datalogging