Th1961 Tonghui Digital Multimeter 6 1/2 Multimeter VFD Display

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Brief Introduction

The TH1951/TH1961 5 1/2, 6 1/2  digit multimeter can test voltage/ current/resistance fast and accurately. Its outstanding performance, such as max.1,200,000 counts, high reading rate1000 meas/sec as well as DC voltage accuracy of 0.0035% provides an ideal costeffective option for customer.

The concise design of front panel of TH1951/TH1961 makes it easier to locate and select the measurement function. High brightness VFD display allows the user to view clearly. Its 12 different measurement functions, including DCV/ACV, DCI/ACI, Ω 2W/Ω 4W, Frequency/Period, Diode Test, Continuity, dB/dBm, cover all basic measurement needs.
Technical Parameter

Test  Function

Test  Parameter

DCV, ACV, DCI, ACI, ohm 2W, ohm 4W, FREQ,PERI  DIODE , CONT

Mathematics Function

mX+b, %, dB, dBm, REL

Range

Auto, Manual

Display

VFD

Trigger Mode

INT/MAN/BUS/EXT

Programmable Time Delay

0 − 6000mS

Reading Storage and Statistics

2 to 512 readings can be stored, loaded and countedType of  statistics: MAX,MIN,AVER,STD

Reading Hold

To find out best stable reading for each data block of the given reading number according to the given accuracy.

Limitation Measurement

To judge HI,IN,LO and display, withALARM for HI/LO

Setup Storage

10 setup files can be stored and loaded

Calibration

Recommend Fluke5520A with TH1951/TH1961 Accuracy Calibration software( option )

Communication Interface

SCPI command support for GPIB(optional),RS232(optional) and  USB(standard) interface

Specifications

Measurement Condition

Calibration interval: one yearOperation Humidity:18°C−28°C , ≤90%RH; When resistor range is 10M and 100M, ≤70%RHWarming up time: 30 minAccuracy is expressed as:  +/-(% of reading +% of range)Temperature coefficient: 0°C--18°C &  28°C--40°C,+0.1%×accuracy /°CFollowing is the specification at slow mode, others please refer  the operation manual .

Full Scale Reading Digits and Reading Rate (meas/sec)

Rate

Slow

Med

Fast

TH1951

TH1961

Full Scale Reading (digits)

119,999

1,199,999

119,999

11,999

Reading Rate(meas/sec)

DC V,DC I

4

2

16

57

AC V,AC I

3

1.5

4

25

Ω  2W

4

2

16

57

Ω  4W

3

1.5

10

33

DC V

Range

Max. reading

Resolution

Accuracy

Input impedance

TH1951

100mV

119.999

1µV

0.02+0.008

>10GΩ

1V

1.19999

10µV

0.01+0.004

>10GΩ

10V

11.9999

100µV

0.01+0.004

>10GΩ

100V

119.999

1mV

0.01+0.004

10MΩ

1000V

1010.00

10mV

0.01+0.004

10MΩ

TH1961

100mV

119.9999

0.1µV

0.0065+0.0045

>10GΩ

1V

1.199999

1µV

0.0040+0.0009

>10GΩ

10V

11.99999

10µV

0.0035+0.0005

>10GΩ

100V

119.9999

100µV

0.0045+0.0006

10MΩ

1000V

1010.000

1mV

0.0055+0.0015

10MΩ

DC I

Range

Max. reading

Resolution

Accuracy

Burden voltage/ shunt  resistor

TH1951

10mA

11.9999

0.1µA

0.05+0.008

<0.15V/10.1Ω

100mA

119.999

1µA

0.05+0.004

<1.5V / 10.1Ω

1A

1.19999

10µA

0.10+0.004

<0.3V / 0.1Ω

10A

11.9999

100µA

0.25+0.004

<0.15V/10mΩ

TH1961

10mA

11.99999

10nA

0.05+0.004

<0.15V/10.1Ω

100mA

119.9999

0.1µA

0.05+0.004

<1.5V / 10.1Ω

1A

1.199999

1µA

0.08+0.004

<0.3V / 0.1Ω

10A

11.99999

10µA

0.25+0.004

<0.15V / 10mΩ

AC V

Range

100mV

1V

10V

100V

750V

TH1951

Max. reading

119.999

1.19999

11.9999

119.999

757.5

Resolution

1µV

10µV

100µV

1mV

10mV

10~20 Hz

1.5+0.1

20~50 Hz

0.5+0.1

50Hz~20 kHz

0.1+0.1

20~50 kHz

0.3+0.15

0.3+0.1

50~100 kHz

1+0.15

1+0.1

TH1961

Max. reading

119.9999

1.199999

11.99999

119.9999

757.50

Resolution

0.1µV

1µV

10µV

100µV

1mV

10~20 Hz

1.50+0.20

20~50 Hz

0.50+0.10

50Hz~100Hz

0.10+0.03

100~20 kHz

0.05+0.03

0.08+0.03

20~50 kHz

0.15+0.05

0.11+0.05

0.18+0.05

------

50~100kHz

0.60+0.08

------

100~300kHz

4.00+0.05

------

------

Ω  2W/Ω  4W

Range

Max. reading

Resolution

Measurement current

Accuracy

TH1951

100 Ω

119.999

1mΩ

1 mA

0.05+0.008

1 kΩ

1.19999

10mΩ

1 mA

0.03+0.004

10 kΩ

11.9999

100mΩ

100μA

0.03+0.004

100 kΩ

119.999

1Ω

10μA

0.03+0.004

1 MΩ

1.19999

10Ω

10μA

0.03+0.004

10 MΩ

11.9999

100Ω

7.0×Rx/(10M+Rx)

0.1+0.004

100 MΩ

119.999

1KΩ

7.0×Rx/(10M+Rx)

0.5+0.008

TH1961

100 Ω

119.9999

100µΩ

1 mA

0.010+0.004

1 kΩ

1.199999

1mΩ

1 mA

0.010+0.001

10 kΩ

11.99999

10mΩ

100μA

0.010+0.001

100 kΩ

119.9999

100m Ω

10μA

0.010+0.001

1 MΩ

1.199999

1Ω

10μA

0.010+0.001

10 MΩ

11.99999

10Ω

7.0×Rx/(10M+Rx)

0.040+0.001

100 MΩ

119.9999

100Ω

7.0×Rx/(10M+Rx)

0.800+0.010

Frequency

Range

Max. reading

Resolution

Accuracy

Sensitivity(sine wave)

TH1951

5Hz~10 Hz

9.99999

10μHz

0.05+0.1

200mV rms

10Hz~100Hz

99.9999

100μHz

0.01+0.01

40mV rms

100Hz~100 kHz

999.999

1mHz

0.005+0.002

40mV rms

100k~1.1MHz

1099.99

1Hz

0.005+0.002

100mV rms

TH1961

5Hz~10 Hz

9.999999

1μHz

0.05+0.1

200mV rms

10Hz~100Hz

99.99999

10μHz

0.01+0.01

40mV rms

100Hz~100 kHz

999.9999

10mHz

0.005+0.002

40mV rms

100k~1.1MHz

1099.999

0.1Hz

0.005+0.002

100mV rms

Operating Temperature and Humidity		0°C−40°C,  ≤90%RH
Power Requirements	Voltage	99V−121V AC ,198V−242VAC
	Frequency	47.5Hz−63Hz
Power Consumption		20 VA max.
Dimensions (W×H×D)		277mmx115mmx365mm
Weight		2.5 kg Approx.

 

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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.