Handheld Voltage Current Thermocouple Calibrator, Output Signal Source

This handheld calibration tool is a voltage, current and thermocouple signal source/generator, able to output and measure 0-30V, 0-24mV, and 0-100mV voltage signal, 0-24mA and 4-20mA current signal and K, E, J, T, R, B, S, N type thermocouple, easy to use and high accuracy, helpful for testing and calibration in the industry field.

SKU: CCHN-SIGNAL-C703

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Delivery date: 6-25 days

Overview

This calibration tool outputs and measures voltage/current/thermocouple signal source, and features simple operation, long standby time, high accuracy and programmable output with LCD screen and silicone keyboard. It’s widely used for calibration or debugging in labs, PLC industry site, process instruments, electric valves and other areas.

Specification

Basic Information
Model	CCHN-C703
Main Functions	Voltage signal: 0-30V, 0-24mV, 0-100mV output and measurement
	Current signal: 0-24mA, 4-20mA output and measurement
	Thermocouple: K, E, J, T, R, B, S output and measurement
Operating Temperature	-10~55℃
Operating Humidity	20%~80%RH, non-condensing
Storage Tempeature	-20~70℃
Size	1157130mm
Weight	300g
Power Supply	4 AAA batteries or 5V/1A power adapter
Power Dissipation	200mA, 4 hours under full load when powered by 4 AAA batteries (nominal capacity of a single battery is 1100mAh), and 17 hours in standby mode.
Battery Life	7~10 hours
Over Current Protection (OCP)	30V
Technical Parameters (Signal Output and Measurement Functions)
Item	Signal Type	Range	Accuracy	Resolution	Remarks
DC Voltage	20mV	0.00-24.00mV	±0.1%	0.01mV	/
	100mV	0.00-100.00mV	±0.1%	0.01mV	/
	V	Output 0.00-15.00V	±0.1%	0.01V	Output: 30mA maximum current Measure: 1.2MΩ input impedance
	V	Measure 0.00-30.00V	±0.1%	0.01V	Output: 30mA maximum current Measure: 1.2MΩ input impedance
DC Current	mA	0.00-24.00mA	±0.1%	0.01A	Output: 750Ω maximum load Measure: 100Ω input impedance
DC Current	4-20mA	4/8/12/16/20mA	±0.1%	0.01mA	Output: 750Ω maximum load Measure: 100Ω input impedance
Passive Current	mA	0.00-24.00mA	±0.1%	0.01mA	Output: 16-30V external power
Power Distribution Output	24VLOOP	24V/16V	±10%	0.1V	Drive current 24mA
Thermocouple	K	-270~1372℃	±1%	1℃	Output: range only from 0℃
	E	-270~1000℃	±1%	1℃
	J	-210~1200℃	±1%	1℃
	T	-270~400℃	±1%	1℃
	R	-50~1768℃	±1%	1℃
	B	0~1820℃	±1%	1℃
	S	-50~1768℃	±1%	1℃
	N	-270~1300℃	±1%	1℃

Selection table
There are also available with other calibrators/signal source generators with different functions. Please check the table below for more details. Buy a suitable one for routine maintenance of your devices.

Functions	Signal Type	Product Model (Optional)		Accuracy
Functions	Signal Type	C703	C703S	Accuracy
DC Voltage	20mV	Y	Y	±0.2%
	100mV	Y	Y
	Output 0~15V	Y	Y
	Measure 0~30V	Y	Y
DC Current	mA	Y	Y
DC Current	4~20mA	Y	Y
Passive Current	mA	Y	Y
Power Distribution Output	24VLOOP	Y	Y	±10%
Thermocouple	K/E/J/T/R/B/S/N	Y	Y	±1%
Thermal Resistance	PT100	N/A	Y	±0.2%
Resistance	Ω	N/A	Y	±0.2%
Range Conversion	mA	Y	Y	/
Programmable Output	/	Y	Y	/

Note:
* For the specific parameters of the above functions, please click here.

Details

Tips: Troubleshooting & maintenance of C703 handheld signal source calibrator

1. Troubleshooting

Nothing displays on the LCD screen after turning on the signal source.
a. Check if the battery is OK.
b. Check if the power adapter outputs the current of 1000mA.
The measurement result cannot display.
Make sure that the signal source calibrator is on the status of MEASURE.
The output or measure value is abnormal.
a. Check if the signal wires are connected correctly.
b. Make sure that the right signal type is chosen.

2. Maintenance

This handheld signal source calibrator is powered by 3.7V rechargeable lithium battery. For a long time use, please power it by power adapter so as to extend the lifespan of battery.
If you use a phone charger to charge the instrument, please confirm that the phone charger output current is 1000mA.
The instrument is not waterproof. Please keep it away from too humid environment.