Compact, Non-Contact PyroUSB 2.2 for Demanding Applications

Product Code: HLU-151...HLU-751

Selectable 4~20mA or 0~20mA Output (Suitable for Reflective Surfaces)

The PyroUSB 2.2 is a high performance, compact sensor which can measure the temperature of inaccessible or moving objects and materials and is suitable for short wavelength measurement of low emissivity targets such as steel rollers and other metal surfaces, even at low temperature. Temperatures of +45°C to +2000°C can be measured accurately and consistently, with an outstanding response time. The 4~20mA/0~20mA output is compatible with almost any indicator, controller, recorder, data logger etc. without the need for special interfacing or signal conditioning.

The PyroUSB 2.2 is available with either a 15:1 (suitable for most applications), 25:1 or 75:1 field of view.

The sensors are fully configurable from a PC using the supplied software* and USB cable. The software enables the user to set the range and emissivity, compensate for reflected energy; apply filtering; select max, min, average or instantaneous readings; and peak or valley hold processing. These features can also be monitored and adjusted by an OPC client. Other features include Data Acquisition, Alarms and a scrolling Graphical Display.

The sensor will operate with either the 4~20mA cable connected, the USB cable connected, or both. The USB cable has an IP65 connector at the sensor end. An IP65 cap protects the sensor when the USB cable is not connected.

The PyroUSB sensor is supplied with a stainless steel mounting nut which makes it easy to install. Standard sensors will operate in ambient temperatures up to +70°C. For more hostile environments or difficult mounting conditions a wide range of accessories are available:

Fixed Mounting Bracket

Adjustable Mounting Bracket

Laser Sighting Tool

Air Purge Collar

Air/Water Cooled Housing

* Software compatible with Microsoft Windows 2000, XP, 7, 8, 10.

This product can be supplied with a calibration certificate. Contact sales for further information. This product can be supplied with a calibration certificate. Contact sales for further information.
  • Features
  • Technical
  • Documents
  • Software
    • Measures inaccessable or moving objects and materials
    • +45°C to +2000°C measurement range
    • Accurate and consistent measurements
    • 4~20mA output compatible with most indicators, controllers etc.
    • 15:1, 25:1 or 75:1 field of view
  • Technical Details
    Temperature Range +45°C to +2000°C
    Field of View 15:1 (+45°C to +300°C) (HLU-151-LT-22)
    15:1 (+100°C to +400°C) (HLU-151-PT-22)
    25:1 (+250°C to +1000°C) (HLU-251-MT-22)
    25:1 (+450°C to +2000°C) (HLU-251-HT-22)
    75:1 (+250°C to +1000°C) (HLU-751-MT-22)
    75:1 (+450°C to +2000°C) (HLU-751-HT-22)
    Output Selectable 4~20mA or 0~20mA (linear with temperature)
    Configuration Via PC port conforming to USB 2.0
    Accuracy ±1.0% of reading or ±2.0°C whichever greater
    Repeatability ±0.5% of reading or ±0.5°C whichever greater
    Emissivity 0.1 to 1.0
    Response Time ≥ 240 ms (90% response)
    Spectral Range 2.0 to 2.4µm
    Supply Voltage 24 V DC (28 V DC max.)
    Sensor Voltage 11 V DC min.
    Max. Loop Impedance 900 Ω @ 24 V DC
    Maximum Span Full temperature range (up to +1550°C)
    Minimum Span +100°C
      Construction Stainless steel
      Dimensions 25mm diameter x 106.5mm long
      Thread Mounting M20 x 1mm pitch
      Weight with Output Cable 175g
      Output Cable Length 1m (longer lengths available)
      USB Cable Length 1m
      Environmental Rating IP65
      Ambient Temp. Range 0°C to +70°C
      Relative Humidity 95% max. non-condensing


    Note: add 'WJ' to end of order code if an air/water cooled housing with air purge collar is required. E.g. HLU-251-MT-22-WJ

  • No software available