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BB-4A-series

100 °C to 982 °C Temperature Blackbody Calibrator

  • Calibrate from 100 to 982°C (212 to 1800°F)
  • Portable Rugged Design
  • Built in Digital PID Autotune Temperature Controller with Temperature Readout
  • NIST Traceable Calibration Certificate Included with Three Data Points
BB-4A-series
From C$ 8 085.79
100 °C to 982 °C Temperature Blackbody Calibrator BB-4A-series BB-4A-series
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Product Overview
  • Accuracy ± 1 °C (± 1.8 °F)
  • Accuracy Detail ±1°C, ±0.25% (±1.8°F ±0.25%) rdg
  • Additional Features 1 Portable
  • Cavity Emissivity 0.99
  • Cavity Opening Size 22
  • Control Mode PID Control
  • Data Interface RS232
  • Display Type LED
  • Frequency 50/60 Hz
  • Height 190 mm
  • Internal Sensing Element Type K Thermocouple
  • Length 264 mm
  • Operating Temperature, Max 50 °C
  • Operating Temperature, Min 0 °C
  • Power Consumption 400 W
  • Process Temperature, Max 982 °C
  • Process Temperature, Min 100 °C
  • Series ID BB-4A-series
  • Stability ±0.15°C
  • Stability Note ±0.15°C or less
  • Target Size 21.56
  • Warm Up Time 1.0 hrs
  • Warm-Up Time Note 1.0 hr from ambient to 982°C (1800°F)
  • Width 410 mm

Supported Applications

The Omega BB-4A series is a portable, rugged blackbody temperature reference source designed to test and calibrate non-contact infrared temperature instruments. Primary applications include the calibration of infrared pyrometers and transmitters with a spot size diameter less than 22 mm (0.88"). The unit features a built-in precision PID digital controller for stable operation as a high-temperature blackbody standard.

Operating Conditions & Performance

The BB-4A series operates within an ambient temperature range of 0 to 50°C (32 to 122°F) and supports humidity levels from 0 to 90% RH non-condensing. The device provides a measurement range of 100 to 982°C (212 to 1800°F). Performance specifications include an accuracy of ±1°C, ±0.25% rdg (±1.8°F ±0.25% rdg) and stability of ±0.15°C or less. The internal sensing element is a Type K thermocouple.

Warm-up time for the unit is 1.0 hr from ambient to 982°C (1800°F). Power requirements are 400 W, supplied via 115 Vac, 50/60 Hz or 230 Vac, 50/60 Hz depending on the model variant.

Configuration Options

The series is available in two voltage configurations to accommodate different regional power standards:

  • BB-4A: High temperature blackbody, 115 Vac range 100 to 982°C (212 to 1800°F).
  • BB-4A-230VAC: High temperature blackbody, 230 Vac range 100 to 982°C (212 to 1800°F).

The device includes a built-in Type K reference probe output and RS232 standard communication. Each unit is supplied with an NIST-Traceable Calibration Certificate including 3 data points.

Key Product Differences

Variants within the BB-4A series differ primarily by input voltage rating, which also affects physical weight:

  • BB-4A (115 Vac): Weight is 8 kg (17 lb).
  • BB-4A-230VAC (230 Vac): Weight is 15 kg (33 lb).

Both models share identical dimensions of 190 H x 410 W x 264 mm D (7.5 x 16.12 x 10.4"). The cavity opening is 22 mm (0.88") with an emissivity of 0.99 for all variants.

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What is the depth of the cavity? My setup uses spherical lenses for image formation and I would like the focal point of the objective lens to lie on the surface of the black body.

Asked by: Grad Student
Thank you for your inquiry. Unfortunately, we do not have this information readily available. Please send us an email at temp@dwyeromega.com for more information.
Answered by: NorwalkAE_SP
Date published: 2024-08-22

hi, will the 230VAC unit work in Spain?

Asked by: Private
Hi, A 230 VAC model will operate properly in Spain because the mains supply there is 230 V.
Answered by: Application Eng JA
Date published: 2025-11-10

What is the diameter of the reference probe well on the back of the BB-4A?

Asked by: ThermoAdam
Hi Adam- I believe you have the wrong idea for what's on the back of this unit. There is no probe well on the back, there is a connection for an external reference probe. The connection is a RSJ-K-R which used with any standard size connector. If you have further questions please contact Temp@Omega.com
Answered by: Application Engineer RD
Date published: 2022-08-16

The reference thermocouple probe at the base of cavity on the rear of the calibrator is reading around 10 degrees F more than the SV and PV. The SV and PV match what the Camera is reading. Does the camera need calibration? Or its fine?

Asked by: SMaini
The port in the back is strictly for reference, and will read higher than the cavity, which is at a calibrated emissivity of .99 so your camera is fine.
Answered by: ApplicationEngineerANB
Date published: 2023-10-13
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