Intrinsically safe explosion proof platinum/cobalt sheathed resistance thermometer NR800-6, NR800-7 (Japan Standards)

The NR800-6 and NR800-7 platinum-cobalt sheathed explosion proof resistance thermometer are intrinsically safe explosion proof resistance thermometer for cryogenic temperature. By combining them with an insulation barrier, they have passed the intrinsically safe explosion proof equipment inspection by the Technology Association of Industrial Safety (a type inspection agency designate the Ministry of Health, Labor and Welfare).

Passed the intrinsic safety explosion proof equipment inspection by the Technology Association of Industrial Safety when combined with a barrier

Capable of measuring from 4K to 375K with an accuracy of ±0.5K
Improved insulation and robust by using φ1.6 sheathed wire between the temperature sensing part at the tip of the sensor and the sleeve
The sheath wire can be installed in a bent state.
When combined with a barrier, it can be used in Class 0 hazardous locations with liquid hydrogen.

Specifications

Sensors	Models	NR800-6, NR800-7
	Measurement temperature	NR800-6: 4K to 375K NR800-7: 15K to 375K
	Resistance at 0℃	100Ω±0.15Ω
	Tolerance	±0.5K
	Measurement current	1mA
	Sensitivity	Min 0.09Ω/K (at 12K), max 0.40Ω/K
	Protective tube	Protective tube: capsule-type oxygen-free copper with gold plating φ2×30mm Sheath: SUS316 φ1.6mm Protective tube + sheath length: 50 to 100,000 mm
	Lead	4-wire vinyl-coated copper conductor Length: 500-600,000mm
Explosion proof specifications	Explosion proof structure types	Intrinsically safe explosion proof proof structure
	Explosion class and ignition level of the target gas or vapor	IICT4 Ga
	Permissible voltage of intrinsically safe circuit	12.4V
	Permissible current of intrinsically safe circuit	42mA
	Intrinsically safe circuit allowable power	69,3mW
Type inspection approval number		No. TC22088X