JY842 thermocouple/thermistor temperature calibrator

Product Overview: Fully isolated dual channel, capable of simultaneously outputting and measuring TC, RTD, voltage, current, and resistance, providing independent 24V DC power supply. Cooperate with JY7000 digital pressure module to complete pressure calibration and precision measurement. Calibration equipment: ordinary temperature and pressure transmitters, thermocouples and thermal resistance thermometers, data recorders, pressure gauges, pressure switches, etc. Main features: * Won the invention patent "Low Impedance Current Limiting Anti High Voltage Protection Circuit", the output and measurement ports can withstand 250V AC accidental entry, and the super strong protection circuit prevents damage to the instrument caused by misoperation; *Awarded the invention patent "Numerical Control Variable Resistance Device", the response rate of the resistance output is faster and more stable; *24V DC power supply with a maximum load current of 80mA; * Powerful intelligent management software that automatically and efficiently collects and reports calibration data, making the calibration process easier.

Function Introduction

• It can program commonly used step signals and step interval time, and supports two modes: automatic step or manual step;

• Supports three cold end temperature compensation methods: real-time temperature compensation using Pt100 temperature probe; Using fixed temperature values for constant temperature compensation; Real time temperature compensation using TC adapter box;

• Multi functional and programmable unit conversion function, which can convert V and mA measurements into other unit quantities;

• When outputting and measuring thermocouple ℃ signals, display the corresponding mV value;

• When outputting and measuring the thermal resistance ℃ signal, display the corresponding Ω value;

• Provide 24V DC circuit power supply and measure the mA signal in the circuit;

• Resistance and thermal resistance measurements support two/three/four wire wiring methods;

• Support signal fine-tuning on any digit of the output value, used for calibration of pointer instruments;

• Can lock or unlock measurement values during measurement;

• When measuring numerical values, collect the minimum and maximum values and calculate the average value;

• Can store on-site detection data and manage it using communication software data copying function;

• The display screen and keypad both have bright backlighting;

• Free downloads and upgrades

  -Communication protocols and controls;

  -Firmware software.

Accurate and stable

• Small temperature drift: ± (0.0002% reading+0.0002% range)/℃;

• Small time drift: ± (0.004% reading+0.001% range)/year;

• Low voltage noise: 1 × 10^-5Range;

• Low current noise: 1 × 10^-5Range;

• Strong resistance to various interferences;

• Original 24K gold-plated low thermoelectric potential material, with more stable signal.

Safe and reliable

• Both the output and measurement ports can withstand 250V AC ingress;

• Both the output port and 24V DC port can automatically recover from short circuits;

• The measurement channels are all automatic range;

• The charging system has automatic safety protection such as overcharging, overdischarging, and short circuit;

• The shell has high insulation strength and strong seismic and drop resistance.

Main indicators

Output and Measurement(One year, ambient temperature 20 ℃± 5 ℃) ★ represents the basic range gear

output range	Maximum allowable error of 0.01 level	Maximum allowable error of 0.02 level	Maximum allowable error at level 0.05	Resolution
– 99.9999 mV ~109.9999 mV	± (0.008% reading+0.003 mV)	± (0.015% reading+0.003 mV)	± (0.035% reading+0.003 mV)	1μV
10 types of thermocouples in ° C	See "TC Thermocouple Technical Specifications" for details	See "TC Thermocouple Technical Specifications" for details	See "TC Thermocouple Technical Specifications" for details	0.1℃
4000.00 Ω	± (0.008% reading+0.04 Ω)	± (0.015% reading+0.04 Ω)	± (0.035% reading+0.04 Ω)	10mΩ
400.000 Ω ★	± (0.008% reading+0.005 Ω)	± (0.015% reading+0.005 Ω)	± (0.035% reading+0.005 Ω)	1mΩ
6 types of thermal resistors ℃	Please refer to the "RTD Thermistor Technical Specifications" for details	Please refer to the "RTD Thermistor Technical Specifications" for details	Please refer to the "RTD Thermistor Technical Specifications" for details	0.01℃
24V DC circuit power supply	± 5%	± 5%	± 5%
100mV maximum output current: 10mA; 24V DC circuit power supply maximum output current: 80mA; Operating range of external excitation current for resistors and thermal resistors: 400 Ω/(0.5-7.5) mA; 4000 Ω/(0.05-0.75) mA.
Measurement range	Maximum allowable error of 0.01 level	Maximum allowable error of 0.02 level	Maximum allowable error at level 0.05	Resolution
± 59.9999 V	± (0.008% reading+0.0005 V)	± (0.015% reading+0.0005 V)	± (0.035% reading+0.0005 V)	0.1mV
± 5.99999 V ★	± (0.008% reading+0.00005 V)	± (0.015% reading+0.00005 V)	± (0.035% reading+0.00005 V)	0.01mV
± 599.999 mV	± (0.008% reading+0.005 mV)	± (0.015% reading+0.005 mV)	± (0.035% reading+0.005 mV)	1μV
± 119.999 mV	± (0.008% reading+0.003 mV)	± (0.015% reading+0.003 mV)	± (0.035% reading+0.003 mV)	1μV
10 types of thermocouples ℃	See "TC Thermocouple Technical Specifications" for details	See "TC Thermocouple Technical Specifications" for details	See "TC Thermocouple Technical Specifications" for details	0.1℃
± 119.999 mA	± (0.01% reading+1 μ A)	± (0.015% reading+1 μ A)	± (0.035% reading+1 μ A)	1μA
± 23.9999 mA ★	± (0.01% reading+1 μ A)	± (0.015% reading+1 μ A)	± (0.035% reading+1 μ A)	0.1μA
5999.99 Ω	± (0.008% reading+0.05 Ω)	± (0.015% reading+0.05 Ω)	± (0.035% reading+0.05 Ω)	10mΩ
599.999 Ω ★	± (0.008% reading+0.005 Ω)	± (0.015% reading+0.005 Ω)	± (0.035% reading+0.005 Ω)	1mΩ
6 types of thermal resistors ℃	Please refer to the "RTD Thermistor Technical Specifications" for details	Please refer to the "RTD Thermistor Technical Specifications" for details	Please refer to the "RTD Thermistor Technical Specifications" for details	0.01℃
50V measurement input impedance: ≥ 1M Ω; 5V measurement input impedance ≥ 500M Ω; current measurement input impedance ≤ 10 Ω; Hz measurement input impedance ≥ 1M Ω; Resistance and thermal resistance measurement current: 500 Ω/1mA; 5000 Ω/0.5mA.

RTD thermistor (one year, ambient temperature 20 ℃± 5 ℃)

Thermal resistance index number	temperature range	Maximum allowable error (analog output)			Maximum allowable error (measurement)
		0.01 level	0.02 level	0.05 level	0.01 level	0.02 level	0.05 level
Pt100	（– 200～0）℃	± 0.05℃	± 0.07℃	± 0.12℃	± 0.05℃	± 0.07℃	± 0.12℃
	（0～400）℃	± 0.09℃	± 0.20℃	± 0.28℃	± 0.09℃	± 0.14℃	± 0.28℃
	（400～600）℃	± 0.11℃	± 0.20℃	± 0.37℃	± 0.11℃	± 0.18℃	± 0.37℃
	（600～850）℃	± 0.14℃	± 0.30℃	± 0.50℃	± 0.14℃	± 0.23℃	± 0.50℃
Pt1000	（– 200～0）℃	± 0.05℃	± 0.10℃	± 0.11℃	± 0.05℃	± 0.07℃	± 0.12℃
	（0～400）℃	± 0.08℃	± 0.13℃	± 0.28℃	± 0.09℃	± 0.14℃	± 0.28℃
	（400～600）℃	± 0.11℃	± 0.17℃	± 0.37℃	± 0.11℃	± 0.18℃	± 0.37℃
	（600～850）℃	± 0.14℃	± 0.23℃	± 0.50℃	± 0.14℃	± 0.23℃	± 0.50℃
Cu50	（– 50～150）℃	± 0.07℃	± 0.10℃	± 0.17℃	± 0.07℃	± 0.10℃	± 0.17℃
BA1	（– 200～0）℃	± 0.06℃	± 0.08℃	± 0.13℃	± 0.06℃	± 0.08℃	± 0.13℃
	（0～400）℃	± 0.10℃	± 0.15℃	± 0.30℃	± 0.10℃	± 0.15℃	± 0.30℃
	（400～650）℃	± 0.13℃	± 0.20℃	± 0.41℃	± 0.13℃	± 0.20℃	± 0.41℃
BA3	（– 50～100）℃	± 0.08℃	± 0.10℃	± 0.18℃	± 0.05℃	± 0.07℃	± 0.15℃
G	（– 50～150）℃	± 0.07℃	± 0.09℃	± 0.17℃	± 0.07℃	± 0.09℃	± 0.17℃

Note: ① Compliant with the 90 international temperature scale, determined by the maximum allowable error between the resistance output and measurement;

② JY820 products do not have Pt1000 or BA3.

TC thermocouple (one year, ambient temperature 20 ℃± 5 ℃)

Thermocouple division number	temperature range	Maximum allowable error (analog output and measurement)
		0.01 level	0.02 level	0.05 level
S	（– 20～200）℃	± 0.9℃	± 0.9℃	± 0.9℃
	（200～700）℃	± 0.5℃	± 0.5℃	± 0.6℃
	（700～1500）℃	± 0.5℃	± 0.6℃	± 0.8℃
	（1500～1768）℃	± 0.5℃	± 0.6℃	± 1.0℃
R	（– 20～100）℃	± 0.9℃	± 0.9℃	± 0.9℃
	（100～600）℃	± 0.6℃	± 0.6℃	± 0.6℃
	（600～1600）℃	± 0.4℃	± 0.5℃	± 0.8℃
	（1600～1768）℃	± 0.5℃	± 0.6℃	± 1.0℃
J	（– 210～– 100）℃	± 0.3℃	± 0.3℃	± 0.4℃
	（– 100～300）℃	± 0.2℃	± 0.2℃	± 0.2℃
	（300～900）℃	± 0.2℃	± 0.2℃	± 0.4℃
	（900～1200）℃	± 0.2℃	± 0.3℃	± 0.5℃
K	（– 250～–150）℃	± 1.0℃	± 1.1℃	± 1.3℃
	（–150～1000）℃	± 0.2℃	± 0.3℃	± 0.5℃
	（1000～1372）℃	± 0.3℃	± 0.4℃	± 0.7℃
T	（– 250～–200）℃	± 0.8℃	± 0.8℃	± 1.0℃
	（–200～0）℃	± 0.3℃	± 0.4℃	± 0.4℃
	（0～400）℃	± 0.2℃	± 0.2℃	± 0.2℃
N	（– 200～– 100）℃	± 0.5℃	± 0.5℃	± 0.6℃
	（–100～600）℃	± 0.3℃	± 0.3℃	± 0.3℃
	（600～1300）℃	± 0.3℃	± 0.4℃	± 0.6℃
E	（– 250～–200）℃	± 0.5℃	± 0.6℃	± 0.8℃
	（–200～700）℃	± 0.2℃	± 0.3℃	± 0.3℃
	（700～1000）℃	± 0.2℃	± 0.3℃	± 0.5℃
B	（600～800）℃	± 0.8℃	± 0.8℃	± 0.9℃
	（800～1100）℃	± 0.6℃	± 0.6℃	± 0.7℃
	（1100～1820）℃	± 0.5℃	± 0.6℃	± 0.8℃
WRe3-25	（0～1800）℃	± 0.5℃	± 0.6℃	± 1.0℃
	（1800～2200）℃	± 0.7℃	± 0.9℃	± 1.6℃
	（2200～2315）℃	± 0.8℃	± 1.2℃	± 2.0℃
WRe5-26	（0～1000）℃	± 0.3℃	± 0.4℃	± 0.6℃
	（1000～1800）℃	± 0.5℃	± 0.7℃	± 1.1℃
	（1800～2315）℃	± 0.8℃	± 1.1℃	± 1.9℃

Note: ① Compliant with the 90 international temperature scale, determined by the maximum allowable error of mV output and measurement;

② Excluding sensor and compensation wire errors;

③ Accuracy with external cold contacts, adding 0.2 ℃ for internal contacts;

④ The maximum allowable error of Pt100 temperature probe is ± 0.20 ℃.

Other indicators

project	specifications
Warm-up time	After 5 minutes of startup, the technical specifications are met
Electrical measurement connection	4mm gold-plated lantern plug
Side port connection	Pressure/24V DC Temperature measurement/switch HART/RS232 connection	Aviation plug
	Charger connection	φ (5.5 × 2.5) mm DC port
External dimensions	（205x110x52）mm
weight	About 0.9kg
display	3.7-inch monochrome dot matrix LCD display screen
Display Contrast	adjustable
Button backlight	LED， closable
Battery Category Capacity	Lithium battery pack 7.4V/4800mAh, 36Wh
Battery life	Charge and discharge more than 300 times
Battery charging time	About 4 hours
battery life	12 hours (measurement and output, turn on circuit power 12mA, screen and button backlight on); >15 hours (measurement and output, screen and button backlight on); 16 hours (measurement or output, screen and button backlight on, continuous).
Adapter input	（100-240）V AC，（50-60）Hz
Adapter output	8.6V DC/1A
operation temperature	（-10~50）°C
storage temperature	（-20~60）°C
Maximum relative humidity without condensation	90% at 35 ° C; At 75% and 40 ° C; 45% at 50 ° C.

optional function

• Secondary instrument calibration software

  -National metrological verification regulations with multiple instruments, unified management of relevant information of the tested instruments;

  -Automatically execute the calibration process, analyze data, and generate calibration certificates (calibration reports) and other reports;

  -Can import custom report templates (Excel documents) and manage reports and templates uniformly according to customer verification requirements;

  -The on-site detection data stored in the calibrator can be uniformly managed for data copying, editing, storage, printing, etc;

  -The calibrator can be operated remotely through a computer, and can perform signal source output or signal acquisition work for a long time, while managing corresponding data;

  -Provided signal conversion tools for 10 types of thermocouples and 8 types of thermal resistors.

• JY7000 digital pressure module of Jinyi

  -The pressure units can be in Pa, kPa, MPa, psi, bar, mbar, inHg, mmHg, inH₂O、mmH₂O、atm、Torr、 lbf/ft²、 kgf/cm²Switching between them;

  -Zero pressure value;

  -Pressure percentage display;

  -Pressure peak recording;

  -Pressure overload alarm;

  -The number of pressure display digits can be set to 4, 5, or 6;

  -Pressure switch test;

  -Countdown pressure leak detection.