Tonghui Digital Multimeter TH1951/61
2Pages

G.ITH1951/TH1961 Digit Multimeter Features ■ TH1951 5 1/2 digit display(119,999 counts) TH1961 6 1/2 digit display(1,199,999 counts) ■ 12 different measurement capabilities: DCV/ACV, DCI/ACI, fi2W/fi4W,Frequency/Period, Diode Test, Continuity, dB/dBm ■ High brightness vacuum fluorescent display ■ True-rms AC voltage and current measurement, bandwidth up to 100kHz(TH1951)/300kHz(TH1961) ■ DCV measurement accuracy up to 0.0035%, resolution up to 0.1 uV ■ Max. measurement rate: 1000 meas/sec ■ Equal accuracy frequency measurement up to 1.1MHz ■ Relative mode(REL) to eliminate residual reading ■ 2 W, 4W resistance measurement mode selectable ■ Built-in mX +b,%, dB, dBm etc. mathematics calculation function ■ 512 readings storage and MAX/MIN/AVER/STD statistics ■ Up to 30,000 readings storage(without statistics) ■ HI/IN/LO comparator function ■ USB, BPIB and RS-232 Interfaces provide easy system communication ■ Calibration without opening the case ■ 10 sets of multimeter setup can be stored and loaded communication, data analysis and statistics as well as construction of an automatic measurement system. The system accepts SCPI (standard commands for programmable instrument) command sets. It is compatible in communication software Test function Test parameter Mathematics function Trigger Mode Programmable Time Delay Reading storage and statistics Reading Hold Limitation measurement Setup storage DCV, ACV, DCI, ACI, Q2W, Q4W, FREQ, PERI, CONT, DIODE Auto, Manual 2 to 512 readings can be stored, loaded and counted Type of statistics: MAX, MIN, AVER, STD To find out best stable reading for each data block of the given reading number according to the given accuracy. To judge HI, IN, LO and display, with ALARM for HI/LO 10 setup files can be stored and loaded TH1951ITH1961 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 cost-effective 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, fi 2W/fi 4W, Frequency/Period, Diode Test, Continuity, dB/dBm, cover all basic measurement needs. Many new technologies have been adopted in TH1951/ TH1961, such as high speed low noise 26 bits A/D converter which gives the good linear and low noise performances. Fast response servo amplifier, floating power source and low offset buffer amplifier constitute front end of servo so as to remove the traditional attenuation, reduce offset drifting as well as to increase measurement rate. The SMD in the multimeter reduces the system density and volume. TH1951/TH1961 adopts special input overload protect circuit which can stand 1500V voltage between input and ground. When overloaded, it can recover fast so as to ensure the safety and reliability of the equipment. Standard GPIB, USB(or RS-232) interface with universal communication software is used with TH1951/TH1961 for easy Communication interface Specifications Measurement condition Recommend Fluke5520A with TH1951 /TH1961 Accuracy Calibration software ( option ) SCPI command support for GPIB(optional), RS232(optional) and USB(standard) interface Calibration interval: 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 . Full Scale Reading digits and Reading Rate (meas/sec)

Operating Temperature and Humidity Ordering Information TH1951 5 1/2 Digit Multimeter TH1961 6 1/2 Digit Multimeter Instrument Accessories TH26036 test leads one pair (black and red) Power cord Options TH10003 GPIB interface board TH12023 RS232C control software TH26041 Glided shorting plate TH26039 4 terminal Kelvin test clip TH26040 SMD component test clip TH12022 Accuracy Calibration software