Brief Introduction:
The instrument adopts a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency. The built-in embedded MCU with high-performance can quickly respond to host and slave machine condition or malfunction and make real time indication, which helps improve the work efficiency. The new designed friendly graphical operation interface, included 5-foot control modes and full touch operation provides convenience and efficiency for users. New file management system with easy, prompt and accurate operation can save a group of real-time setting file and 99 groups of user defined setting files. It can provide pushed information indication and cache 2 real-time information. Being provided with two modes of SCPI instruction systems, it is convenient to set up production lines or single machine test. Also, it can connect with any device with serial port and which refer to the SCPI instruction system design of this machine.
New Trend of AC/DC Superposition Test by virtue of profound technology and extensive market survey in bias current field, Tonghui introduced the large power DC bias current source— TH1778A. CortexM3 ARM CPU with high-performance, graphical interfaces and full-touch operation make TH1778A series DC Bias Current Source convenient and efficient for you.
TH1778A series is appropriate for AC/DC superposition test of magnetic inductors and test occasion for large current. Also, it can provide magnetizing current for the analysis of magnetic materials. The adopted new software framework is adapting to real-time parameter adjustment and operation.
Technical Parameter
Modle | TH1778A | |
Display | Display | 480×272 16:9 24-bit true color TFT LCD |
Interface | Complete graphic user interface | |
Operation | Resistor type touch screen + entitative key + foot switch | |
Current Step | 0mA-1.000A | 5mA |
1.000A-5.000A | 25mA | |
5.0A-120.0A | 100mA | |
Supporting Test Frequency | 0Hz-2MHz | |
Sweep Adjustment Time | 0mA-1.000A | 4ms-3600s |
1.000A-5.000A | 10ms-3600s | |
5.0A-120.0A | 20ms-3600s | |
Minimum Interval of Sweep Adjustment Step | 0mA-1.000A | 5mA |
1.000A-5.000A | 25mA | |
5.0A-120.0A | 100mA | |
Range | Host machine (TH1778A) | 1.000A/5.000A/20.0A |
Slave Machine (TH1778AS) | 20.0A | |
Maximum Output Voltage | 35V (when outputting 1.000A. Fordifferent ranges, please refer to the user manual) | |
Maximum Permitted DCR | Rmax= (Ω)(Calculation ofRmax, please refer to the description in user manual) | |
Maximum Permitted Inductance Value | Lmax= (mH)(Calculation ofLmax, please refer to the description in user manual) | |
Range Mode | Auto | |
Control Mode for START/STOP | START/STOP entitative key, 4 foot switches, Bus | |
Max. Current Time for Continuous Loading | Keeping 2-3h, continuous output | |
Function | Fault self-inspection; 99 groups of custom profile management; dual-progress bar indication; Chinese and English; soft switching of slave machine; real-time operation; SCPI command set; simple dual-display computer. | |
Interface | RS232S、laverLink | |
Work Environment | Temperature | 0℃-55℃ |
Humidity | <90%RH | |
Power Requirement of Adapter | Voltage | AC 220V/110V(1±10%) |
Frequency | 50Hz/60Hz(1±5%) | |
Power | ≤60VA | |
Dimension(W×H×D)(mm) | Single one: 430×185×473(mm)(not including equipment cabinet) | |
Weight | Single one: 18kg(not including equipment cabinet) |