Frequency 20Hz-2MHz.
Basic Accuracy: 0.05%
Auto Balance Bridge Technology
AC Signal: 5mV-2V
DC Bias: 0+/-10V, 0+/-100mA
Product description
Features
■ High accuracy:Adopt Auto-balance bridge technology, 4-terminal pair
■ High stability and consistency:Up to 15 ranges
■ High speed:Up to 5.6ms
■ High resolution:7- inch, 800×600
■ High power:
 Signal source:Voltage up to 20Vrms(only TH2838H)
 Current up to 100mA(only TH2838H)
 DC bias:Voltage up to±40V(only TH2838H)
 Current up to 100mA
 Up to 120A when controlling 6 sets of TH1778 series DC
 Bias Current Source by external DC Bias interface 
 Independent Voltage Source: ±10V programmable output
 (only TH2838H)
■ 201 Points List Sweep Function
■ Multi-parameter Graphic Sweep Function
■ Arithmetical operation
■ 10 bins sorting, sorting result with sound and light alarm
■ Huge storage space: 
 Internal: 100 groups of setting files, 10 groups of gif image files;  External: 100 groups of setting files through USB storage
■ Rich interfaces: USB HOST, USB DEVICE, LAN, HANDER, GPIB (Optional), SCANER(Optional), external DC BIAS control interface 
■ High compatibility: Support SCPI commands, compatible with KEYSIGHT E4980A, E4980AL, HP4284A etc.
 
Brief Introduction
■ TH2838/TH2838H/TH2838A is a new generation impedance tester adopting the most advanced auto balance bridge theory in the world at present. With its 0.05% basic accuracy, speed up to 5.6ms, 20Hz-2MHz frequency range and impedance test range up to 1GΩ, this new impedance tester can meet all test demands of components and materials, especially for testing capacitor with low D and inductor with high Q. Four-terminal pair configuration can eliminate the effect of electromagnetic coupling in test cable, to extend the low limit of low impedance test 10 times than those testers with Five-pair configuration.
TH2838/TH2838H/TH2838A supports 20V AC test signal and 40V DC Bias, new-added improved multi parameter list sweep/graphic analyze will help customers to extend the comprehensive evaluation ability on components.
TH2838/TH2838H/TH2838A is a strong tool for the design, examination, quality control and production test of electronic components. Its excellent performances and functions provide a powerful tool for circuit design and development, as well as material (electronic material and non-electronic material) research and development. 
TH2838/TH2838H/TH2838A can realize various tests of commercial standards and military standards, such as IEC and MIL.

Brief Introduction
■ Application
1.Passive component
Impedance parameter estimation and performance analysis of capacitor, inductor,  magnetic core, resistor, piezoelectric devices, transformers, chip components  and network components
2.Semiconductor component
Parasitic parameter test and analysis of LED driver integrated circuit C-VDC  features of varactors Parasitic parameter analysis of transistors or integrated  circuit
3.Other components
Impedance assessment of printed circuit boards, relays, switches, cables, batteries
4.Dielectric material
Dielectric constant and loss angle evaluation of plastics,  ceramics and other materials 
5.Magnetic materials
Magnetic permeability and loss angle assessment of ferrite,  amorphous body and other magnetic materials
6.Semiconductor materials
Dielectric constant, electric conductivity and C-V characteristics  of semiconductor materials Liquid crystal cell of dielectric  constant, elastic constant and C-V characteristics of liquid  crystal cell
 
Specifications

Model		TH2838A	TH2838	TH2838H
Test Frequency		20Hz-1MHz	20Hz-2MHz
Basic Accuracy		0.05%
AC Singal	Voltage	5mVrms to 2Vrms		Max 20Vrms
	Current	50μArms to 100mArms		Max 100mArms
DC Bias	Voltage	0V to +/-10V		0V to +/-40V
	Current	0mA to +/-100mA
External DC Bias		Max 120A by 6 sets of TH1778
Independent Voltage Source		N/A		-10V to +10V

 
Accessary

Standard
Accessories name	Model
Four-end clamp with card	TH26005C
Short circuit	TH26010
Kelvin test lead with box four-terminal insulation and lock	TH26011BS

 

Optional
Accessories name	Model
Box patch test cable	TH26009B
Magnetic ring fixture	TH26008A
Dielectric test fixture	TH26077