Tonghui Th1941 4 1/2 Digit Multimeter Digit Multimeter

 

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Brief Introduction

TH1941 4 1/2-digit true-RMS digital multimeter and TH1942 50,000-count digital multimeter are voltage,current,resistance tester with multi functions and low cost. The instrument can stably perform measurement at high speed as several times as competitive instruments in this class. It provides excellent performance, such as maximum reading of 21,000/51,000 counts, maximum DC voltage accuracy of 0.02%, and low cost to give you a best choice. Having VFD dual-display with high brightness, TH1941/TH1942 can synchronously display measurement parameters, such as AC/DC voltage or current, AC voltage/current and frequency to improve measurement efficiency and display results clearly. The instrument is equipped with SMD component inside to reduce density and physical size. The instrument comes standard with RS232C communication interface and common communication software is optional to meet the need of communication with computer, data analysis and statistics, and building up automatic test system. The instrument accepts SCPI command to ensure compatibility of communication software.

Technical Parameter

Measurement Parameters	DC/AC Voltage, DC/AC Current, Resistance,Frequency, Period, Continuity, Diode
Math Function	%, dB, dBm, REL
Range	Auto, Manual
Display	VFD, dual display
Reading Mode	Single display: all measurement parametersDual display: ACV+DCV, ACI+DCI, ACV+Hz, ACI+Hz, Readout+dB/dBm, Readout+Max/ Min
Trigger Mode	INT/MAN/BUS
Reading Hold	To find out the best stable reading for each data block of the given reading number according to given accuracy
Comparator	To judge HI, IN, LO and display, with ALARM atHI/LO(selectable)
Interface	RS232C(only TH1942), supporting SCPI command

Measurement Condition
Calibration Cycle: one year Operation Humidity:18°C−28°C, ≤90%RH;                                 When resistor range is 10M and 100M, ≤70%RH Warming up Time: 30 min Accuracy is expressed as: +/- (% of reading + % of range) Temperature coefficient: 0°C--18°C & 28°C--40°C,+0.1%×accuracy /°C Following is the specification at slow mode, others please refer  the operation manual
Model		TH1941
Speed (counts/second)		Slow		Middle				Fast
DCV,DCI		5		10				25
ACV,ACI		5		10				25
Ω		5		10				25
AC+DC		1.2		1.4				1.5
Freq		1		2				3.9
DC Voltage		Max. Reading	Resolution			Accuracy			Inputimpedance
Range	200mV/500mV	210.00	10µV			0.03+0.04			10MΩ
	2V/5V	2.1000	100µV			0.03+0.02			11.1MΩ
	20V/50V	21.000	1mV			0.03+0.02			10.1MΩ
	200V/500V	210.00	10mV			0.03+0.02			10MΩ
	1000V	1200.00	100mV			0.03+0.02			10MΩ
DC Current		Max. Reading	Resolution			Accuracy			Load Voltage/ Shunt  Resistance
Range	2mA/5mA	2.1000	0.1µA			0.08+0.025			<0.3V/100Ω
	20mAV/50mA	21.000	1µA			0.08+0.020			<0.04V / 1Ω
	200mA/500mA	210.00	10µA			0.08+0.020			<0.3V / 1Ω
	2A/5A	2.1000	100µA			0.3+0.025			<0.05V / 10mΩ
	20A	20.000	1mA			0.3+0.025			<0.6V / 10mΩ
AC Voltage		200mV	2V		20V		200V			750V
Resolution		10µV	100µV		1mV		10mV			100mV
Accuracy	20~50 Hz	1.0+0.2					------
	50~20 kHz	0.5+0.15	0.4+0.05				0.8+0.075
	20k~50 kHz	1.8+0.25	1.5+0.10
	50k~100 kHz	3.0+0.75	3.0+0.25
AC current		2mA	20mA		200mA		2A			20A
Resolution		0.1µA	1µA		10µA		100µA			1mA
Accuracy	20~50 Hz	1.50+0.5					2.00+0.5
	50~2 kHz	0.5+0.3					0.5+0.3
	2k~20 kHz	2+0.5	2+0.38				------
Load Voltage/Shunt Resistance		Same as DC current
Resistance		Max. Reading	Resolution			Test Current			Accuracy
Range	200Ω/500Ω	210.00	10mΩ			0.5 mA			0.10+0.05
	2 kΩ/5 kΩ	2.1000	100mΩ			0.45 mA			0.10+0.025
	20 kΩ/50 kΩ	21.000	1Ω			45μA			0.10+0.025
	200 kΩ/500 kΩ	210.00	10 Ω			4.5μA			0.10+0.025
	2MΩ/5 MΩ	2.1000	100 Ω			450nA			0.15+0.025
	20MΩ/50 MΩ	21.000	1kΩ			45nA			0.30+0.05
Frequency		Max. Reading	Resolution			Accuracy			Sensitivity
Range	5~10Hz	9.9999	0.0001Hz			0.05+0.02			200mV rms
	10~100Hz	99.999	0.001Hz			0.01+0.02			300mV rms
	100~100kHz	999.99	0.1Hz			0.01+0.008			300mV rms
	100k~1MHz	9999.9	10Hz			0.01+0.008			500mV rms

General Specifications
Working temperature & humidity		0°C-40°C, ≤90%RH
Power supply	Voltage	198V-242VAC,99V-121VAC
	Frequency	47.5Hz-63Hz
Power consumption		≤ 10 VA
Dimensions (W×H×D)		277mmx115mmx340mm
Weight		Approx. 2.2 kg

 

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Chuangkai Electronic Co., Ltd is leading company specialized in producing, developing & selling various types of measuring instruments and testing equipment, such as temperature data logger, LCR meter, DC resistance tester (micro ohm meter), digital power meter, power supply, transformer tester, battery tester, programmable DC electronic load, charger, temperature controller, tachometer, high voltage signal-amplifier, power amplifier, etc.

FAQ:
Q. How is your company's product after-sales service system?
A. The product warranty period is 12 months, we can provide lifetime maintenance. We have professional pre-sales and after-sales teams that can respond to you within 24 hours to resolve technical issues. We provide one-to-one after-sales service.

Q: Can you customize it?
A: Yes, we accept customization according to customer's specific requirements.

Q. How long is your lead time? If I want to customize instruments, how long will it take?
A. When order quantity is 1-10 units, we have ready stock goods, we can ship out within 3-5 working days after receipt of deposit; products required new production of common materials, usually the lead time is about 10-15 days; products requiring new production of special and rare materials, usually the lead time is about 20-30 days.

Q. What payment method do you accept?
A. Our company accept payment method of T/T (bank transfer), Western Union, PayPal and so on.

Q. What package do you use for your products? What shipping method do you use?
A.1. Our company use standard exporting carton for packing. 2. We ship via express courier (door to door service), by air, and by sea according to customers' requirements.

For more questions, please feel free to send inquiries to us.