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Summary of Contents for EM TEST dito
- Page 1 Instruction Manual Video Manual & Overview dito ESD Simulator IEC 61000-4-2 / EN 61000-4-2 Manual to dito (Version 2.30 ) Version: 2.30 / 05.06.2013 The benchmark for emc Replaces: 2.20 / 06.06.2012 Filename: UserManual-dito-E-V2.30.doc Printdate: 05.06.13...
- Page 2 4153 Reinach BL1 Switzerland Phone : +41 61 717 91 91 Fax : +41 61 717 91 99 URL : http://www.emtest.com Copyright © 2013 EM TEST (Switzerland) GmbH All right reserved. Specifications subject to change Instruction Manual V 2.30 2 / 36...
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Page 3: Table Of Contents
Calibration and Verification ........................26 6.2.1. Factory calibration ............................. 26 6.2.2. Guideline to determine the calibration period of EM Test instrumentation ..........26 6.2.3. Calibration of Accessories made by passive components only ..............26 6.2.4. Periodically In-house verification ......................26 6.3. - Page 4 7.1. Basic ................................. 31 7.2. Options ..............................31 Annex ............................ 32 8.1. CE-certificate of compliance ........................32 8.2. General diagram dito ..........................33 8.3. General diagram dito ..........................34 8.4. Application ..............................35 8.5. Definitions ..............................36 Instruction Manual V 2.30...
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Page 5: Safety
A proper ground connection, through the grounding con- ductor in the power cord, is essential for a safe system operation. This is related to the use of the dito with the optional pow- er mains adapter type MAD. -
Page 6: Before Use
The user is not allowed to independently change or modify any EM TEST generator. For service and repair, only original EM TEST parts and components must be used. EM TEST is not responsible for any accident or injury incurred through the use of other parts or components. -
Page 7: Failures And Over Stressing
EM Test 1.4. Failures and Over stressing If it is assumed that a safe operating mode of the equipment is no longer possible, the mains connection must be re- moved and the equipment secured from unintentional use. An unsafe operating mode is characterized as follows: - the equipment shows recognizable damages;... -
Page 8: Discharge Modules And Grounding Of Dito
Due to the low energy there is no danger to life. Risk of electrical shock. Do not touch any metallic part at the discharge module. The 2m grounding cable must always be connected to the dito during any operation. Do not discharge the simulator into the air, because electrostatic charge WARNING can discharge and shock the operator. -
Page 9: Batteries And Battery Charger
Batteries and battery charger Do not charge dry batteries. There is a danger of explosion. For charge the rechargeable LiFePO4 PowerPack dito use only the CU ditto charger. The use of the old charger ACH may destroy the PowerPack dito. -
Page 10: Esd Test Setup As Per Iec 61000-4-2
EM Test ESD test setup as per IEC 61000-4-2 2.1. Test setup A correct test set-up is very important for a reproducible test procedure, especially for ESD testing. The correct test set- up as specified in the standard is mandatory. Some of the most important points are the following: 1. -
Page 11: Parts And Connections Of Dito
EM Test 2.2. Parts and Connections of dito The following figure shows all possible connections to dito. Parts 1 dito base unit 2 Discharge Module 3 Battery 4 Discharge Tip Operation 5 Trigger and ON/OFF 6 Display 7 Button 8 ... -
Page 12: Parts And Functions
C= 100pF, R=500 Power Pack dito LiFePO accu battery module CU ditto battery charger for PowerPack dito Mains adapter to operate dito from AC power mains Carrying case Grounding cable EAS 30 Grounding resistor esd.control Software for up/down load procedures, remote control of dito, test reports and including type IFA interface adapter;... -
Page 13: Operation And Functions
Single-beep Input confirmation if key Beep is ON Indicates that dito is ready for a new air discharge. e.g. for rep=5s a single beep will be generated 5s after the previous discharge Double-beep A double beep always indicates warnings or failures. -
Page 14: Start-Up Display
150 pF / 330 After switching ON, dito starts a self test routine to check the basic function of the unit including the high voltage power supply. The R/C discharge parameters of the module are displayed in the lower line. -
Page 15: Main Menu
Test Routines The dito includes 8 test routines, which the operator can program on his own by using the esd.control software. The data can be downloaded via the optical interface. The test routines will guide the user through the complete test procedure. -
Page 16: Quick Zap
Count of the discharges After pressing Start, the menu shows up as follows: Start / Stop of the test with the trigger button Triggerbutton dito is ready for testing dito is charged V o l t a g e... -
Page 17: Evaluation
During Evaluation testing with AD Module the charging voltage depends from the distance of the arc between the test finger and EUT. While moving dito across the EUT manually, the distance is not stable and the discharges occur at different charging voltage level. dito gives some information at which voltage ranges the generator was discharged. -
Page 18: Test Routines
3.7. Test Routines Dito saves up to 8 test routines, which are created by the esd.control software and transferred to dito. dito guides the user through the test and indicate every point for testing. Any EUT fail can be marked by Fail1 or Fail2 with a comment in the test notes. After the test, the data can be uploaded to... -
Page 19: Esd Test With Test Routines
1 Save Cancel Report memory in dito dito has the internal capability to save 20 files with results of test routines. A full memory is displayed at the begin of a test as shown below. Test Routines Report memory full... -
Page 20: Setup Menu
EM Test 3.8. Setup menu Service Standard Level Hardware Settings Firmware Settings System Information 3.8.1. Standard Levels The standard voltage levels can be modified within this menu. The parameters are entered separately for air discharge and contact discharge. Standard Levels... -
Page 21: Firmware Setting
Vr/ V level discharge detection After each discharge the residual voltage Vr within dito is measured. Due to the Vr/ Vlevel ratio dito knows if a discharge occurred. Based on this parameter the operator can decide whether a discharge is accepted as a complete discharge or not. -
Page 22: System Information
3.9. Error messages Pre-Discharge The discharge occurs before dito reached the charging voltage. Therefore the applied voltage is out of the tolerance. The discharge tip is too near to the EUT. Help: Increase the distance from the discharge dip to the EUT. (Approach fast to the EUT) Voltage too low The discharge tip has a direct contact to the EUT or the distance to the EUT is too low. -
Page 23: Setting Into Operation
- If maintenance or service work is necessary, it may be performed only by experts who are familiar with the existing danger. - In case of using a tripod to mount the dito for longterm testing, the power mains adapter MAD shall be used ... -
Page 24: Technical Data
Counter 1 ... 30‘000 Count down 0 ... 999‘999 Count up Operating mode Manual Via function keys of dito Remote control Via optical interface and RS 232 adapter (option) Display LCD; graphical display with 128x64 pixel Supply Battery mode Continuous operation for >70000 discharges at 16.5kV (LiFePO4) -
Page 25: Discharge Modules
EM Test 5.3. Discharge modules 5.3.1. As per IEC/EN 61000-4-2 AD : 1 – 16.5kV and CD: 0.5 - 10kV Test voltage Discharge capacitor 150pF +10% 330 +10% Discharge resistor 5s Holding time for AD Test voltage tr rise time 0.7-1.0 ns... -
Page 26: Maintenance And Practical Advice
EM TEST doesn’t know each customer’s Quality Assurance Policy nor do we know how often the equipment is used and what kind of tests are performed during the life cycle of a test equipment. Only the customer knows all the details and there- fore the customer needs to specify the calibration interval for his test equipment. -
Page 27: Verification
30.0A 16.0A 8.0A In case of using a tripod for mounting the dito, the power mains adapter (MAD) shall be used. This is too realise similar ground reference conditions as with the dito held in the operators hand. Instruction Manual V 2.30... -
Page 28: Esd Waveform Verification
Faraday cage EM TEST CTR-2 Coaxial Target including 20dB attenuator and high quality coaxial cable Capturing the waveform on the scope can only be achieved with the proper setup on the Digital Oscilloscope (DSO). The setup must be chosen to measure waveforms at ± 2KV, ± 4KV, ± 6KV and ± 8KV. There are five measurements required for each voltage. - Page 29 The equipment should be re-calibrated at appropriate intervals. Calibration Intervals of EM Test Measuring equipment According to our accredited management system all used measuring equipment of EM Test is calibrated in cycles of two years. Copies of the Certificate This calibration certificate shall not be reproduced except in full, without written approval of the laboratory EM Test.
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Page 30: User Calibration
6.5. PowerPack dito Battery Shorting the batteries must be strictly avoided. The batteries must only be charged with the original EM TEST battery charger model CU dito Old LIFePO4 accu must be recycled Integrated protection for low undervoltages Pin configuration: 1 Power + polarity 2 Power GND –... -
Page 31: Delivery
Earthing resistor 2x470k to test table, 1.40m Vertical coupling plane Set for indirect testing. Optolink Fiber optic link and interface for dito and ESD 30N with USB A connector, length 3m CTR 2 Target 2 Ohm for verification CTR 2 target ... -
Page 32: Annex
EM Test Annex 8.1. CE-certificate of compliance DECLARATION OF CONFORMITY Manufacturer : EM TEST (Switzerland) GmbH Address: Sternenhofstr. 15 CH 4153 Reinach Switzerland declares, that under its sole responsibility, the product listed below, including all options, are conform with the applicable CE directives listed below, using the relevant section of the following EC standards and other normative documents. -
Page 33: General Diagram Dito
EM Test 8.2. General diagram dito Instruction Manual V 2.30 33 / 36... -
Page 34: General Diagram Dito
EM Test 8.3. General diagram dito Instruction Manual V 2.30 34 / 36... -
Page 35: Application
EM Test 8.4. Application Example of test set-up for table-top equipment, laboratory tests. Example of test set-up for floor standing equipment, laboratory tests. Example of test set-up for floor standing equipment, post installa- tion tests. Test points per IEC 61000-4-2 Direct discharge - All accessible points of the surface of the DUT: Cables, housings, displays, keyboards, etc. -
Page 36: Definitions
EM Test 8.5. Definitions - Actual ESD events: Non-simulated electrostatic discharges that occur in the environment of the electronic equipment. - Air discharge method: A method of ESD testing in which the charged electrode of the ESD simulator approaches the EUT regardless of the conductivity of the surface being subjected to the ESD event.
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