BOUHNIK bipolar power supplies and monopolar power supplies

Design and development of electrical products for power systems
bipolar power supplies, monopolar power supplies, laboratory electromagnet, calibration furnaces

CALIBRATION FURNACES FOR TEMPERATURE SENSORS

BOUHNIK SAS, together with specialists in temperature measurements, has developed scientific instruments devoted to calibration of temperature sensors based on contact or optical radiation. Our company can propose calibration systems with utmost metrologic performances , such as the Black Body High Temperature Furnace 800/2000K (CNHT 8/20), manufactured under BNM-INM licence.

Our engineering department can design made-to-order calibration furnaces meeting your technical specifications and can fit the best calibration practices.

CNHT 8/20

Our references are BNM-INM, BNM-LCIE, BNM-LPTF, DGA, INERIS, CNRS.

FURNACE REFERENCE	F32 - 4/ 7	F33- 4/ 14	F54- 4/ 14	CNHT 8/ 20
Temperature range (K)	400 à 700 K	400 à 1300 K	400 à 1400 K	800 à 2000 K
Typical temperature stability (K)	0.5 K	0.3 K	0.3 K	0.1 K
Number of independantly heated areas	1	3	3	1
Power (W)	200 W	1000 W	1600 W	3500 W
Tension V	230 VAC	120 VAC	230 VAC	70 VDC
Diameter of useful area (mm)	30 mm	30 mm	50 mm	8 mm
Length of useful area (mm)	200 mm	300 mm	400 mm	100 mm
Luminance radial gradient				ą 0.05 / 6mm
Temperature gradient along cylinder axis (k/mm)	ą 1/40	ą 0.3/100	ą 0.5/80

F33 4/7

F54 4/14

The model 33-4/14 is specifically dedicated to thermocouples calibration : it includes an interchangeable cartridge, which can host a so-called Ť mini-cell ť or a mini crucible for fixed-point transition.

With the cartridge, innovation from BOUHNIK SAS, the fixed point crucibles are protected by inert gases, repeatibly positionned and interchangeable ; furthermore, the thermocouples are guided and maintained during their calibration.

Our compensated (or regulated) muti areas furnaces can be equipped with egalization blocks (for calibration of thermocouples by contact) as well as black-body fixed points crucibles for calibration of pyrometers by optical radiation.