Changzhou Tonghui Electronic TH2821B Operation Manuals
OPERATION MANUAL
English
February 2006
1st Edition Rev 1.0.0
© Copyright 2006 Changzhou Tonghui Electronic Co., Ltd.
All rights reserved.
TH2821B
Portable LCR Meter
TH2821B OPERATION MANUAL
2
Contents
Contents...........................................................2
How to Contact UsError! Bookmark not
defined.
Incoming Inspection ....................................3
Notes on Use ..............................................4
Warranty: ...................................................5
Chapter 1 Overview...........................................7
1.1 Introduction..........................................7
1.2 Main Functions ......................................7
1.3 Specifications........................................8
1.4 Environment Requirements................... 10
Chapter 2 Panel Illustration ............................. 11
2.1 LCD Display Illustration ........................ 11
2.2 Keyboard Illustration ........................... 13
Chapter 3 Operation........................................ 14
3.1 Power on ............................................ 14
3.2 How to operate ................................... 15
3.2.1 Key Functions ............................ 15
3.3 Battery Replacement ........................... 21
3.4 Clearing Instruction ............................. 22
Appendix ........................................................ 23
TH2821B OPERATION MANUAL
3
Incoming Inspection
Inspect the shipping container for damage. The contents of
the shipment should be listed as follows. If the contents are
incomplete, if there is damage or defect, please contact
our company or your nearest Sales and Service Office.
Accessories
TH26028 DC Power Adapter 1
TH26027 4 terminal Kelvin test clip leads 1
TH2821B OPERATION MANUAL
4
1604A 9V battery 1
User Manual 1
Options
TH26029 SMD component test fixture
Notes on Use
This meter is only for indoor use.
Turn off the TH2821B while switching the power supply
between battery and DC adapter or replacing the
battery.
Although internal circuit protection is provided, DC
voltage or current may damage TH2821B. Before you
measure a capacitor, be sure the capacitor is fully
TH2821B OPERATION MANUAL
5
discharged.
Take out the battery when the meter is not in use for
more than 3 months.
A single standard 9V battery can be used for the power
supply. TH2821B will not work normally when battery
voltage is less than 6V.
The 12V AC to DC adaptor is recommended to be used
for TH2821B power supply.
Perform Open and Short corrections for accurate
measurement especially when test fixture is changed.
The functions locked with password are not accessible
by users.
Warranty:
This instrument product is warranted against defects in
material and workmanship for a period of two years from
the date of shipment. During the warranty period, Our
company will, at its option, either repair or replace
products which prove to be defective. For warranty service
or repair, this product must be returned to a service facility
TH2821B OPERATION MANUAL
6
designated by our company.
Warranty limitation
The foregoing warranty shall not apply to defects resulting
from improper or inadequate maintenance by Buyer,
Buyer-supplied software or interfacing, unauthorized
modification or misuse, or improper site preparation or
maintenance.
Chapter 1 Overview
Thank you for purchasing our product. To get the maximum
performance from the instrument, please read this manual
first, and keep this manual at hand.
1.1 Introduction
TH2821B is a microprocessor-controlled portable meter with
low power consumption. It can measure six basic parameters,
they are inductance L, capacitance C, resistance R,
impedance |Z|, dissipation factor D and quality factor Q.
TH2821B can fulfill the measurement needs of various
component manufacturers and maintenance technicians.
1.2 Main Functions
1
．．．．
Test Parameter
L-Q, C-D, R-Q and Z-Q.
2． Correction
OPEN: multi-frequency correction of open circuit;
SHORT: multi-frequency correction of short circuit.
3． Display Mode
Direct —— direct measurement value;
4
．．．．
Range Hold
When measuring a large number of components with
the same nominal value, this function can effectively
improve the measuring rate.
5
．．．．
Equivalent Circuit Mode
Both parallel and series equivalent circuit modes can
TH2821B OPERATION MANUAL
8
be obtained.
6
．．．．
Data Hold
This function can be used to freeze the current display
value.
1.3 Specifications
Parameter L-Q, C-D, R-Q and Z-Q
Frequency 100 Hz, 120 Hz and 1 kHz
Accuracy
Basic Accurac
y: 0.3%
Display
5 digits display for both primary and secondary
parameters
100 Hz,120 Hz
1 µH – 9999 H
L
1 kHz
0.1 µH – 999.9 H
100 Hz, 120Hz
1 pF – 9999 µF
C
1kHz
0.1 pF – 999.9 µF
R, |Z|
0.0001 Ω - 999.9 MΩ
D, Q 0.0001 – 9999
Measurem
ent Range
∆%
0.0001% - 9999%
1kHz
0.3 Vrms (1±±±±10%)
Test Level
(Range
Auto and
Open
Circuit)
100Hz
120Hz
0.3 Vrms (1±±±±15%)
Ranging
Mode
Auto and Hold
Equivalent
Circuit
Parallel and Series
Display Direct
Loading...