JY820-H Multi functional calibratorDetailed product description：

JY820-H multifunctional calibrator uses fully digital operation and intelligent menu prompts; More intuitive, simpler, and user-friendly; All signal outputs can be fine tuned or continuously increased or decreased, which can be used to accurately measure the accuracy of the tested meter and verify its smoothness; Micro external plug-in rapid temperature measurement probe automatically performs thermocouple cold end tracking compensation after measuring the ambient temperature, without the need for calculation. The functions include: when simulating thermocouple signals, the temperature value can be directly entered, and the screen displays the temperature and its corresponding mV value simultaneously; When measuring thermocouple signals, the screen simultaneously displays temperature and its corresponding mV value; No need to check the division table again; It can simulate mA output under passive or active conditions and has an indicator light for external circuit fault diagnosis; When using a 24V DC power supply to power a two-wire or four wire transmitter, the mA value output by the transmitter can be measured simultaneously; When outputting and measuring mA (V) values, displaying both the mA (V) value and its corresponding% value allows for a clear understanding of the opening of the regulating valve; Can automatically switch the range to 5V, 500mV, and 10mV according to the high or low voltage being measured; Can quickly obtain high-precision measurement data; In the step level output function, data from multiple calibration points that require frequent verification can be stored. With just one touch, step level signal cycling output can be automatically performed; Equipped with an external charging interface, it can be charged directly without removing the battery and can be used while charging; The instrument will automatically turn on or off the background light of the display screen according to the strength of the light. It is both operation free and energy-saving.

Technical specifications of JY820-H multifunctional calibrator

Accuracy level: 0.02 level, accuracy: (± 0.015% reading+0.002% full degree) 5-year guarantee (applicable temperature range: 0 ℃~45 ℃)
Factory accuracy: It is the internal control index of the manufacturer for the factory products in an environment of 20 ℃± 2 ℃. Leaving such a large margin is to consider the inevitable effects of temperature drift, time drift, and noise in the future, ensuring that users can ensure the accuracy of use for many years!
Factory temperature coefficient: In order to ensure the accuracy of use within a wide "applicable temperature range" for users, the manufacturer sets internal control indicators for the "factory product" level.

	Range	Factory accuracy	resolution	internal resistance		Noise （R、M、S）	Factory temperature coefficient	Corresponding indicators of the product
		0.02 level						JY810	JY820
lose out	5.1999V	± 0.006% reading	100μV	≤0.15Ω		≤20μA	±0.0003%/℃	●	●
	80.999mV		1μV	≤55Ω		≤2μA	±0.0001%/℃	●	●
	Thermocouple ℃		0.1℃				Extremely small, negligible	●	●
	30.000mA	± 0.006% reading	1μA	≥20MΩ	≤0.1μA		±0.0003%/℃	●	●
	500.00Ω	± 0.006% reading	10mΩ	When the external activation current is 1mA			±0.0003%/℃		●
	Thermal resistance ℃		0.1℃				Extremely small, negligible		●
	24V DC	± 5% (when outputting 80mA)	-----	About 10 Ω		50mV	------	●	●
measure quantity	5.49999V	± 0.006% reading	10μV	≥500MΩ		----	±0.0003%/℃	●	●
	549.999mV		1μV					●	●
	109.999mV		1μV				±0.0001%/℃	●	●
	Thermocouple ℃		0.1℃				Extremely small, negligible	●	●
	21.9999mA	± 0.006% reading	0.1μA	30Ω			±0.0003%/℃	●	●
	549.999Ω	± 0.006% reading	1mΩ	Working current 1mA			±0.0003%/℃		●
	Thermal resistance ℃		0.1℃				Extremely small, negligible		●

Note: 1. Measurement of V and mV are both automatic ranges.
2. Thermocouple types: S, R, B, K, N, E, J, T, WRe3-25, WRe5-26;
Thermistor types: Pt100, Cu50, G, BA1
Other indicators
Cold end temperature compensation range: 0 ℃~+59.9 ℃
Probe temperature measurement time: 6 minutes
Probe temperature measurement accuracy: ≤± 0.2 ℃ (-20 ℃ -+59.9 ℃)
The applicable range of external excitation current for Ω output mode is 0.1mA to 6.3mA
Nickel hydrogen battery capacity: 1900mAh (4.8V)
Battery usage time: over 12 hours
24VDC output power: 2W/80mA, can work for 12 hours/120mA