TH2848 series precision impedance analyzer is a new generation of precision impedance analyzer successfully developed by Tonghui Electronics by adopting the current international advanced auto-balance bridge principle and new generation of measurement and control technology, innovatively adopting the new generation of technology such as dual-CPU architecture, Linux underlying system, 10.1-inch capacitive touch-screen, Chinese and English operation interface, built-in instructions and help, etc., which solves the defects such as slow LCR test speed, single display, cumbersome operation and so on. LCR test speed is slow, single display, cumbersome operation and other defects.
TH2848 series precision impedance analyzers are designed for frequencies ranging from 4Hz-2MHz/5MHz/10MHz, with piezoelectric conductivity circle and dielectric constant test functions as standard, allowing impedance analysis functions to be further enhanced.
Thanks to the 10.1-inch capacitive touch screen with a resolution of 1280*800, the TH2848 series precision impedance analyzers have a four-parameter display, and all settings, monitoring, sorting parameters, and statuses can be displayed on the same screen, avoiding the tedious operation of frequent switching.
Quick Selection
| Summary parameters | TH2848-02L | TH2848-02 | TH2848-05 | TH2848-10 | |
| Test Frequency | 4Hz-2MHz | 4Hz-2MHz | 4Hz-5MHz | 4Hz-10MHz | |
| Basic precision | 0.05% | ||||
| ACsignal source | input voltage | 5mVrms - 2Vrms | 5mVrms - 20Vrms | ||
| amps | 0mArms - 20mArms | 0mArms - 100mArms | |||
| DCbias voltage | input voltage | 0V - ±10V | 0V - ±40V | ||
| amps | 0mA - ±100mA | 0mA - ±100mA | |||
| Independent Voltage Source | 0V - ±10V | ||||
| DCRtest signal | input voltage | 100mV-1V | |||
| amps | 0mA - 10mA | ||||
| Multi-function parameter list scanning | R | R | R | R | |
| Graphical Analysis Scanning | Graphic Scanning | R | R | R | R |
| piezoelectric conducting circle | S | R | R | R | |
| dielectric constant | S | R | R | R | |
appliance
■Passive components:
Evaluation of impedance parameters and performance analysis of capacitors, inductors, cores, resistors, piezoelectric devices, transformers, chip assemblies, and network components.
■Semiconductor Components:
Test and analysis of parasitic parameters of LED driver integrated circuits; C-VDC characteristics of varactor diodes; analysis of parasitic parameters of transistors or integrated circuits
■Other components:
Impedance evaluation of printed circuit boards, relays, switches, cables, batteries, etc.
■Medium Material:
Evaluation of dielectric constants and loss angles of plastics, ceramics and other materials
■Magnetic material:
Evaluation of permeability and loss angle of ferrites, amorphous and other magnetic materials
■Semiconductor materials:
Dielectric constant, electrical conductivity and C-V properties of semiconductor materials
■Liquid crystal materials:
C-V characteristics such as dielectric constant and elasticity constant of liquid crystal units
■Piezoelectric materials and devices:
Piezoelectric ceramic filters, piezoelectric ceramic traps, piezoelectric ceramic discriminators, piezoelectric ceramic transformers, high-power ultrasonic generators, transducers (oscillators), surface acoustic wave devices, electro-acoustic devices, etc. can be tested, such as static capacitance, loss, resonance frequency, anti-resonance frequency, mechanical coupling coefficient and other parameters.
Technical Parameters
Functional Features
- highly accurate
TH2848 series precision impedance analyzer adopts wideband auto zero type auto balanced bridge technology, which can guarantee higher frequency accuracy in a wider frequency range compared with ordinary op-amp I/V type auto balanced bridge! The following figure takes Tonghui bridge as an example to compare the accuracy difference between auto-balanced bridge and ordinary bridge in the frequency range of 0-10MHz. Currently, Tonghui's wideband auto zeroing type auto balancing bridges include TH2839 series, TH2838 series and TH2828 series.
- High stability and consistency
TH2848 series precision impedance analyzer, in addition to the broadband automatic zero type auto-balance bridge principle brings high accuracy and high stability, the instrument built-in 15 test ranges, is also a strong guarantee of stability and consistency.
- 10.1Large inch screen with four measurement parameters for details at a glance
10.1-inch touch screen, 1280*800 resolution, Linux system, Chinese and English operation interface, support for keyboard, mouse, LAN interface, brings unparalleled ease of operation.
The large screen brings more benefits is that you can place four test parameters and sorting parameters, sorting results, function selection and other parameters in the same screen, and it never looks crowded and cluttered, and at the same time, you can display four kinds of measurement parameters, four kinds of measurement parameters can be adjusted arbitrarily.
The ease of operation and completeness of the display are readily apparent when compared to earlier LCRs.
- Piezoelectric device analysis function
For other piezoelectric devices such as piezoelectric ceramic filters, piezoelectric ceramic traps, piezoelectric ceramic frequency discriminator, piezoelectric ceramic transformers, high-power ultrasonic generators, transducers (oscillators), surface acoustic wave devices, electroacoustic devices and so on can be tested, such as static capacitance, loss, resonance frequency, anti-resonance frequency, mechanical coupling coefficient and other parameters.
For piezoelectric conductivity circle test that requires professionalism, the TH2848 series precision impedance analyzer is also built-in, without the need to purchase a host computer can be realized directly in the instrument graphical scanning analysis interface.
- Dielectric constant analysis function
In the field of material analysis, dielectric constant analysis is a basic content, TH2848 series precision impedance analyzer built-in dielectric test function, dielectric constant can be treated as a regular impedance analyzer test items like single test, list scanning, graphical scanning analysis.
- Enhanced multifunctional parameter list scanning
Supports up to 201 points of list scanning, each scanning point can be set to 4 measurement parameters, 4 measurement parameters have independent switches, list scanning each point of frequency, level, bias, function, delay can be set independently to meet the needs of most customers.
Improved list scanning sorting results output: each line can specify a different output, or any number of lines combined results output, all results can be directly output in the HANDLE interface
- Powerful graphical interface for analysis
4 scanning tracks, 1-4 test parameters can be selected arbitrarily, the scanning curve can be one screen, two screens, four screens
- 10Gear sorting and programmable HANDLER interface
The instrument provides 10 grades of sorting, which provides the possibility of grading the quality of the customer's products, and the sorting results are directly outputted to the HANDLER interface.
When connecting with automation equipment, how to configure the HANDLER interface output has always been a difficult problem for automation customers. TH2848 series precision impedance analyzers visualize the HANDLER interface pin position, input/output mode, corresponding signal, and answering mode completely, which makes automation connection simpler.
- Intelligent Firmware Upgrade Method
The instrument itself can be updated by upgrading the firmware without returning to the factory for function improvement, bug solution, function upgrade, and so on.
TH2848 series precision impedance analyzer firmware upgrade is very intelligent, can be carried out through the system setup interface or file management interface, intelligent search for the instrument memory, external USB flash drive or even LAN upgrade package, and automatically upgrade.
- Large memory, support for more profiles and image storage
The TH2848 series is upgraded with more memory, excluding the system footprint, users can use nearly 6GB of space to store more setup files and screenshots.
It also supports external USB storage expansion. The external USB storage supports setup files, screen shots, and data logging files.
Data log files are stored in external storage by default.
- K.Full Interface Configuration, No More Worries About Connectivity
The TH2848 comes standard with all common interfaces for communication with test instruments, making communication with computers and PLCs trouble-free.
- Standard Accessories
- Optional Test Accessories
| Product Model | TH2848-02L | TH2848-02 | TH2848-05 | TH2848-10 | |||||||
| demonstrate | monitor (computer) | 10.1-inch (diagonal) capacitive touch screen | |||||||||
| proportions | 16:9 | ||||||||||
| resolution (of a photo) | 1280×RGB×800 | ||||||||||
| measured parameter | way (of life) | Four parameters can be selected arbitrarily | |||||||||
| AC | Cp, Cs, Lp, Ls, Rp, Rs, |Z|, |Y|, R, X, G, B, θ, D, Q, VACIAC | ||||||||||
| DC | RDC | ||||||||||
| piezoelectricity (physics) | Cp, D, ε, |ε|, εr', εr'', tanδ, Q | ||||||||||
| Test Frequency | realm | 4Hz-2MHz | 4Hz-2MHz | 4Hz-5MHz | 4Hz-10MHz | ||||||
| accurate | 0.01% | ||||||||||
| resolution (of a photo) | 0.1mHz | 20.0000Hz-99.9999Hz | |||||||||
| 1mHz | 100.000Hz-999.999Hz | ||||||||||
| 10mHz | 1.00000kHz-9.99999kHz | ||||||||||
| 100mHz | 10.0000kHz-99.9999kHz | ||||||||||
| 1Hz | 100.000kHz-999.999kHz | ||||||||||
| 10Hz | 1.00000MHz-9.99999MHz | ||||||||||
| AC Test Signal Mode | Rated value (ALC OFF) | The set voltage is the Hcur voltage when the test terminal is open circuit | |||||||||
| The set current is the current from Hcur when the test terminal is short-circuited. | |||||||||||
| Constant value (ALC ON) | Keep the voltage on the DUT the same as the set value | ||||||||||
| Keep the current on the DUT the same as the set value | |||||||||||
| test level | voltage range | 0Vrms - 2Vrms | 0mVrms-20Vrms | F≤1MHz | |||||||
| 0mVrms-15Vrms | F>1MHz | ||||||||||
| 0mVrms-2Vrms | 2MHz<F≤5MHz | ||||||||||
| 0mVrms-1Vrms | 5MHz<F≤10MHz | ||||||||||
| accuracy | ± (10% x setpoint + 2mV) (AC ≤ 2Vrms)
± (10% x setpoint + 5mV) (AC > 2Vrms) |
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| resolution (of a photo) | 0.1mVrms | 0mVrms-0.2Vrms | |||||||||
| 0.2mVrms | 0.2Vrms-0.5Vrms | ||||||||||
| 0.5mVrms | 0.5Vrms-1Vrms | ||||||||||
| 1mVrms | 1Vrms-10Vrms | ||||||||||
| 10mVrms | 10Vrms-20Vrms | ||||||||||
| current range | 0mArms-20mArms | 0mArms-100mArms | |||||||||
| resolution (of a photo)
(100Ω internal resistance) |
1μArms | 0μArms-2mArms | |||||||||
| 2μArms | 2mArms-5mArms | ||||||||||
| 5μArms | 5mArms-10mArms | ||||||||||
| 10μArms | 10mArms-100mArms | ||||||||||
| RDCbeta (software) | voltage range | 100mV-1V | |||||||||
| resolution (of a photo) | 100μV | ||||||||||
| current range | 0mA-10mA | ||||||||||
| resolution (of a photo) | 10μA | ||||||||||
| DC Bias | voltage range | 0V-±10V | 0V-±40V | ||||||||
| accuracy | 1% x set voltage +5mV | AC≤2V | |||||||||
| 2% x set voltage +8mV | AC>2V | ||||||||||
| resolution (of a photo) | 0.1mV | 0V - ±5V | |||||||||
| 1mV | ±5V - ±40V | ||||||||||
| current range | 0mA - ±100mA | ||||||||||
| resolution (of a photo) | 1μA | 0mA-50mA | |||||||||
| 10μA | 50mA-100mA | ||||||||||
| voltage source | voltage range | -10V - 10V | |||||||||
| resolution (of a photo) | 1mV | ||||||||||
| current range | -45mA - +45mA | ||||||||||
| Output Impedance | 100Ω | ||||||||||
| Test Side Configuration | four-pronged attack (e.g. marriage) | ||||||||||
| Test cable length | 0m, 1m | ||||||||||
| Output Impedance | 100Ω, ±1%@1kHz | ||||||||||
| mathematical operation | Absolute deviation from nominal value Δ, percentage deviation from nominal value Δ% | ||||||||||
| equivalence mode | Series, parallel | ||||||||||
| calibration function | Open OPEN, Short SHORT, Load LOAD | ||||||||||
| Measured average | 1-255 times | ||||||||||
| Range Selection | Auto AUTO, Manual HOLD | ||||||||||
| Trigger Mode | Continuous, single | ||||||||||
| Trigger delay | 0-60s | ||||||||||
| Exclusive Features | One-click screenshot, one-click recording, embedded help system | ||||||||||
| Range Configuration | LCR | 100mΩ, 1Ω, 10Ω, 20Ω, 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ | |||||||||
| RDC | 10Ω, 20Ω, 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ | ||||||||||
| Measurement time (ms/time) | Fast: 2.5ms,
Medium speed: 90ms Slow: 220ms |
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| Maximum accuracy | 0.05% (refer to specifications) | ||||||||||
| Measurement display range | a: 1 x 10-18(b); E: 1 x 1018 | ||||||||||
| Cs, Cp | 0.00001pF - 9.99999F | ||||||||||
| Ls, Lp | 0.00001μH - 99.9999kH | ||||||||||
| D | 0.00001 - 9.99999 | ||||||||||
| Q | 0.00001 - 99999.9 | ||||||||||
| r, rs, rp, x, z, rDC | 0.001mΩ - 99.9999MΩ | ||||||||||
| G, B, Y | 0.00001μs - 99.9999S | ||||||||||
| VDC | ±0V - ±999.9999V | ||||||||||
| IDC | ±0A - ±999.9999A | ||||||||||
| θr | -3.14159 - 3.14159 | ||||||||||
| θd | -179.999° - 179.999° | ||||||||||
| Δ% | ± (0.000% - 999.9%) | ||||||||||
| Multi-function parameter list scanning | check numbers | 201 points, average can be set for each point, each point can be sorted individually | |||||||||
| parameters | Test frequency, AC voltage, AC current, DC BIAS voltage, DC BIAS current, and test function with dielectric constant are realized based on the parameter settings of each point in this list. | ||||||||||
| Trigger Mode | Sequential SEQ: When triggered once, measurements are taken at all scan points, /EOM/INDEX is output only once | ||||||||||
| Step STEP: Performs one scan point measurement per trigger and outputs /EOM/INDEX at each point, but list scan comparator results are only output at the last /EOM | |||||||||||
| Other features | 1. Multiple copy functions for both scanning and testing parameters
2. Time delay can be set for each scanning point. |
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| comparator | Each scanning point can measure up to four test parameters, each parameter can be set upper and lower limits, all test parameters are qualified to output PASS signal, otherwise output FAIL signal, not set upper and lower limits are not judged | ||||||||||
| Graphic Scanning | Scanning Points | Points 51, 101, 201, 401, 801 are optional | |||||||||
| The results show that | Extreme values for each parameter and the scanned parameter value at the point where the cursor is located with the corresponding test parameter value | ||||||||||
| Piezoelectric test | Integrated Piezoelectric Conductivity Circle Test Solution | ||||||||||
| scanning track | 1-4 test parameters can be selected arbitrarily, and the scanning curve can be divided into one screen, two screens and four screens. | ||||||||||
| Display range | Real-time automatic, locked | ||||||||||
| coordinate scale | Logarithmic, linear | ||||||||||
| scanning parameter | Frequency, AC Voltage, AC Current, DCV BIAS/DCI BIAS | ||||||||||
| trigger method | one-off | Trigger manually once, one scan from start to finish is completed, the next trigger signal starts a new scan | |||||||||
| progression | Infinite loop scanning from start to finish | ||||||||||
| Results Saving | Graphics, documentation | ||||||||||
| comparator | Bin Staging | 10Bin, PASS, FAIL | |||||||||
| Bin deviation setting | Deviation value, percent deviation value, off | ||||||||||
| Bin mode | Tolerance, continuous | ||||||||||
| Bin Count | 0-99999 | ||||||||||
| grade differentiation | Each file can set up to four parameter limit range, four test parameter results within the set file display corresponding file number, beyond the set maximum file number range will display FAIL, not set the upper and lower limits of the test parameters are automatically ignored file discrimination | ||||||||||
| PASS/FAIL indication | If Bin1-10 is met, the front panel PASS light is on, otherwise the FAIL light is on. | ||||||||||
| data cache | 201 measurements can be read in batches | ||||||||||
| store a call (computing) | inside (part, section) | The instrument has 8GB of built-in storage space, after removing the system occupied by the user can use the space of about 6GB | |||||||||
| External USB | Test setup files, screenshot graphics, log files | ||||||||||
| Keyboard Lock | Lockable front panel keys | ||||||||||
| connector | USB HOST | 2 USB HOST ports, can be connected to the mouse, keyboard, U disk at the same time can only use a | |||||||||
| USB DEVICE | Universal Serial Bus socket, small Class B (4 contact positions); compliant with USB TMC-USB 488 and USB 2.0, female connector for connection to external controller. | ||||||||||
| LAN | 10/100M Ethernet, 8-pin, two speeds adaptive | ||||||||||
| HANDLER | For Bin Staging Signal Output | ||||||||||
| GPIB | standard equipment | ||||||||||
| RS232C | Standard 9-pin, Crossed | ||||||||||
| RS485 | standard equipment | ||||||||||
| Power-on warm-up time | 60 minutes. | ||||||||||
| Input Voltage | 100-120VAC/198-242VAC selectable, 47-63Hz | ||||||||||
| power wastage | Not less than 130VA | ||||||||||
| Dimensions (WxHxD) mm | 430x177x265 | ||||||||||
| weights | 11kg | ||||||||||
- Test frequency: 4Hz-2MHz
- High precision 0.05%: Adopting auto-balanced bridge technology, four-end pair test configuration
- High resolution: 10.1-inch, 1280*800 resolution, capacitive touch screen
- High stability and consistency: 15 range configurations
- High power: Signal level: 20VAC/100mAAC
Built-in DC bias: ±40VDC/100mADC
- High speed: dual CPU architecture, the fastest test speed up to 400 times / s (2.5ms)
- Convenient operation: Linux operation base layer, touch operation, embedded help
- Three types of tests: point test, list scan, and graphic scan
- Four-parameter measurement
- One-click recording, one-click screenshot
- 201-point multi-parameter list scanning function
- Graphic scanning function, 4 tracks optional, support 1/2/4 split screen
- Piezoelectric Conductivity Circle Test, Dielectric Constant Test
- Powerful sorting: LCR mode: 10-speed sorting
Graphical analysis mode: supports curve condition sorting
- High compatibility: supports SCPI/MODBUS command set, compatible with KEYSIGHTE4980A, E4980AL, HP4284A
■Passive components:
Evaluation of impedance parameters and performance analysis of capacitors, inductors, cores, resistors, piezoelectric devices, transformers, chip assemblies, and network components.
■Semiconductor Components:
Test and analysis of parasitic parameters of LED driver integrated circuits; C-VDC characteristics of varactor diodes; analysis of parasitic parameters of transistors or integrated circuits
■Other components:
Impedance evaluation of printed circuit boards, relays, switches, cables, batteries, etc.
■Medium Material:
Evaluation of dielectric constants and loss angles of plastics, ceramics and other materials
■Magnetic material:
Evaluation of permeability and loss angle of ferrites, amorphous and other magnetic materials
■Semiconductor materials:
Dielectric constant, electrical conductivity and C-V properties of semiconductor materials
■Liquid crystal materials:
C-V characteristics such as dielectric constant and elasticity constant of liquid crystal units
■Piezoelectric materials and devices:
Piezoelectric ceramic filters, piezoelectric ceramic traps, piezoelectric ceramic discriminators, piezoelectric ceramic transformers, high-power ultrasonic generators, transducers (oscillators), surface acoustic wave devices, electro-acoustic devices, etc. can be tested, such as static capacitance, loss, resonance frequency, anti-resonance frequency, mechanical coupling coefficient and other parameters.
| standard equipment | |||||
| Accessory Name | model number | ||||
| Boxed Four-Ended Insulated Locking Kelvin Test Leads | TH26011BS | ||||
| fixture (machining) | TH26048 | ||||
| short circuit board | TH26010 | ||||
| optional | |||||
| Accessory Name | model number | ||||
| Dielectric Test Fixture | TH26077 | ||||
| High Frequency Patch Fixture | TH26108C | ||||
| Magnetic Ring Fixture | TH26008A | ||||
| Magnetic Ring Clamp (Piece Type) | TH26007A | ||||
| Patch Test Leads with Boxes | TH26009B | ||||
| fixture (machining) | TH26047 | ||||
| Test Fixture | TH26062 | ||||
| Test Fixture | TH26063 | ||||
Comprehensive test and measurement service provider-Shenzhen Weike Electronic Technology Co.











