SR-33N

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Integrated Compact Extended Area Blackbody

The SR-33N series is a compact and cost-effective absolute Infrared radiation source that combines the emitter head and the controller in an all-in-one housing design.

The NIST-traceable SR-33N is ideally suited for applications such as NUC for thermal imagers, scientific and industrial measurements requiring reference sources, and on-site calibrations.

The SR-33N is lightweight, portable, user-friendly, and includes a bright LCD display. Its durable construction makes it an ideal choice for operation in a variety of environments – in the field, in industrial and scientific environments.

Temperature control is achieved using removable sensors that can easily be replaced by the user in just minutes. Users who prefer to perform the calibrations themselves may do so with the CI Systems CK-800 calibration kit.

For more information

FeaturesSpecificationsICD

High emissivity and high uniformity
Portable, compact, and lightweight
Easily operated by a single user in field conditions
RS232 communication
4” and 7” standard square aperture sizes available
Calibration is valid for 24 months
NIST-traceable calibration
Removable sensor technology

For more information, see the brochure

Model:	SR-33N-4A	SR-33N-7A
Emitter size	4” x 4”	7” x 7”
Absolute Temp. range (1)	5 °C to 100 °C	5 °C to 100 °C
Set point & readout resolution	0.01 °C	0.01 °C
Uniformity (2)	0.01 °C	0.01 °C
Temperature Accuracy (3)	0.05 °C	0.05 °C
Stability	0.01 °C	0.01 °C
Emissivity	0.98 ± 0.02	0.98 ± 0.02
Settling time, (for 1°C change)	1.5 minutes	1.5 minutes
Communication Ports	RS232	RS232
Power Consumption	200 W	500 W
Operating Voltage	90-240 VAC (50/60 Hz)	90-240 VAC (50/60 Hz)
Operating Temperature	0 to 50 °C	0 to 50 °C
Size (Height x Width x Depth)	27 x 19 x 17 cm (including handle)	32x23x19 cm (including handle)
Weight, kg	7 kg	13 kg

Notes:

1) All values are valid at an ambient temperature of 22°C, in a non-condensing environment.

2) Uniformity values are for a ±1°C step from ambient temp @ 80% of the central area. For other temperatures, multiply by ΔT.

3) Accuracy is referenced to a NIST-calibrated CI Systems master sensor.

4) Settling time is to 0.01°C from the required value.

System	Aperture Diameter	View ICD	View 3D model
ICD SR33N-4	4”
ICD SR33N-7	7”

SR-33N

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