Related Manuals for Tonghui TH2773A
Summary of Contents for Tonghui TH2773A
- Page 1 OPERATION MANUAL TH2773A...
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Page 2: Table Of Contents
Content Chapter 1 General Introduction......................3 Product Introduction......................3 Specifications ........................3 Main functions ........................4 Structure & Installation ......................4 Chapter 2 Operation Instruction......................7 2.1 Notice............................7 2.2 Operation.............................7 2.2.1 Power ..........................7 2.2.2 Connecting the DUT ......................7 2.2.3 Display ..........................7 2.2.4 Sorting function........................8 2.2.5 Short correction function....................9 2.2.6 Error ..........................10 Chapter 3 Maintenance &... -
Page 3: Chapter 1 General Introduction
Chapter 1 General Introduction Product Introduction Applying the most advanced measurement principle, TH2773A is a simple and intelligent inductance meter with predominant function design, economic price, and fast measurement speed (8 times/sec). It can measure inductance of different ranges under different frequencies. -
Page 4: Main Functions
Main functions 1.3.1 Display mode: two display windows. Inductance (L) (or percentage deviation ∆％) , and quality factor (Q) are synchronously displayed. 1.3.2 Frequency: 100 Hz (conversion switch on), 1 kHz (conversion switch off) 1.3.3 Correction: Perform short correction by operating this key. 1.3.4 Sorting function: When Q and ∆％... - Page 5 Figure 1-1 Front panel overview...
- Page 6 Beeper 220V 50Hz S/N： 98008 Changzhou Tonghui Electronic Co., Ltd. Figure 1-2 Rear panel overview Rear panel description Name Description Function ON: When the inductor is qualified, PASS Beeper 2-bit switch indicator is on, beeper alarms (it doesn’t in other states).
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Page 7: Chapter 2 Operation Instruction
Chapter 2 Operation Instruction 2.1 Notice 2.1.1 After unpacking, check with product package list. 2.1.2 Before operating the instrument, please read the manual thoroughly, or operate the instrument under professional personnel’s instruction. 2.1.3 Line and neutral line through which power inputs should be of the same model as those on the instrument’s power plug. -
Page 8: Sorting Function
This is sorting. What the instrument is asked to do is to get the result fast and simply. TH2773A provides the functions of one-bin inductance sorting and quality factor qualification sorting. -
Page 9: Short Correction Function
quality factor The sorting procedure is shown in figure 2-1: Qx≥Q — indicator on indicator off OVER ∆％≤L — indicator on ∆%≥L DOWN — indicator on Qx≥Q — PASS indicator on Figure 2-1 Sorting procedure After setting inductance and quality factor limit, insert the inductance, to observe the indicators on panel to judge whether the inductance is qualified or not. -
Page 10: Error
2.2.6 Error The instrument’s operating environment and power supply are listed in Chapter 1.2. Because range of L’s basic accuracy 0.3% and Q’s basic accuracy 0.2% is limited, please precisely evaluate the instrument’s error when measuring inductor of some inductance according to Chapter 1.2.3. -
Page 11: Chapter 3 Maintenance & Repair
Chapter 3 Maintenance & Repair 3.1 Maintenance 3.1.1. Notice 3.1.1.1 The instrument should be maintained by experienced professional personnel. 3.1.1.2 At the time of maintenance, nominal frequency, resistance components, and adjustable potentiometer can’t be adjusted or changed. 3.1.1.3 If the instrument is damaged because of user’s blindfold maintenance or changing parts, the user should afford the maintenance charge. -
Page 12: Signal Checking
3.1.5 Standard Analog signal’s nominating, happening and A/D conversion & comparison have close relationship with instrument’s standard. And TH2773A’s +5V standard consists of regulator V223, dynatron V224, and peripheral circuit. Observed through oscilloscope, pin e of V224 should be direct current signal of +5V, or measured through digital multimeter, it should be direct current signal of precise +5V. -
Page 13: Chapter 4 Product Package & Warranty
9. testing report After receiving the instrument, user should unpack to check. If there’s any problem, please contact Tonghui Electronic Co., Ltd. or sales office at once. 4.2 Warranty This instrument has 18 months’ free warrant, and lifetime’s maintenance. Please show warranty card at the time of maintenance.
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