701935 Deskew Correction Signal Source User`s - Electro
Contents
1. Ground the Measurement Instrument Be sure to employ protective earth ground on the measurement instrument Do Not Use in Locations of High Humidity To prevent electric shock do not use the 701935 in locations of high humidity Do Not Operate in an Explosive Atmosphere To prevent injury and fire do not use the 701935 in locations where explosion or fire is possible in the presence of flammable liquids vapors and dust A CAUTION Do Not Damage the Current Output Terminal Do not damage the insulation cover of the current output terminal of the 701935 Do Not Short or Apply Voltage to the Output Terminal Do not short or apply external voltage to the output terminal Doing so can cause damage to the 701935 Use the Correct Power Supply for the 701935 Use the probe power supply terminal provided by the YOKOGAWA DL Series Digital Oscilloscope DL Series Oscilloscope or the YOKOGAWA power supply Model 700938 or 701934 Use the Correct Power Cord Use the power cord provided with the 701935 Part No B9852MV Ground the 701935 The electric potential of the terminal of the voltage output terminal is the same as that of the grounding terminal of the DL Series Oscilloscope to which it is connected When Wiping off Dirt To wipe off dirt use a dry soft clean cloth Do not use volatile chemicals such as benzene or thinner for cleaning Other Handling Precautions e Do not apply shock to the 701935 such as by dropping it2. User s 701935 Manual Deskew Correction Signal Source Thank you for purchasing the Deskew Correction Signal Source Model 701935 To use the full capabilities of the 701935 please read this manual thoroughly before beginning operation and use the 701935 correctly For inquiries please see PIM112 01E attached 3rd Edition December 2008 YK All Rights Reserved Copyright 2003 Yokogawa Electric Corporation YOKOGAWA ard Edition Safety Precautions The following safety precautions must be observed during all phases of operation Yokogawa Electric Corporation assumes no liability for the customer s failure to comply with these requirements Read the user s manual of the measurement instrument and have a thorough understanding of the specifications and handling of the instrument before using the 701935 The following symbols are used on this instrument A Warning handle with care Refer to the user s manual or service manual This symbol appears on dangerous locations on the instrument which require special instructions for proper handling or use The same symbol appears in the corresponding place in the manual to identify those instructions L Functional ground terminal do not use this terminal as a protective ground terminal Make sure to comply with the following safety precautions in order to prevent accidents such as an electric shock which impose serious health risks to the user and damage to the instrument A
3. cope to the current probe setting setting in which current to voltage conversion is possible 1 inaj When using a passive probe othe 5 V To the probe power supply terminal i in place of the differential itl Powercord 7 7 B9852MJ 2 To the signal input 5 V termina terminal of the terminal 701935 Deskew Correction Signal Source To the signal input terminal of the oscilloscope 47 Match the direction of the arrows indicating the current direction of the 701935 and the current probe To the ground terminal Current probe 701932 701933 701928 or 701989 To the signal input terminal of the oscilloscope x If the oscilloscope is equipped with a probe power supply connect to that terminal Be sure tt dth b I i To the probe power supply terminal nosto exces 2 Drone power sSuUppy range 7 On the DL Series Oscilloscope observe the falling edges of the waveforms of voltage and current signals that the 701935 outputs For the setup procedure of the oscilloscope see the manual that came with the oscilloscope 8 Using the deskew function of the DL Series Oscilloscope correct the signals so that the starting sections of the falling edges of the waveforms match Example of Skew Correction When the Waveform Acquisition Mode Is Set to Averaging on the DL Series Oscilloscope Before skew correction After skew correction J Starting section Voltage Cur
4. e Accurate correction may not be possible near objects generating strong magnetic fields such as a circuit with large current flowing or a transformer or near object generating strong electric fields such as a radio 2 External Dimensions and Names of Parts Name plate panel Unit mm i i Rear View To the power lt A case s9852ms omy o MM connector of 701335 Yooema e fe the 701935 69 2 ce Nz00 ourrur i 100mA Power connector Power cord Voltage output terminal Rep Pr ord len 1 Sterminal i ci _5 V terminal 308 Current output terminal The printed on the name plate panel is for matching the direction with the current probe arrow To the probe power supply terminal or power supply 4 Model 700938 or 701934 3 Specifications Output voltage current Output voltage Output current rectangular wave Approx 5 aie T L_ Approx 100 m E Output frequency Approx 15 kHz Fall time Approx 15 ns Operating temperature range 5 to 40 C Operation humidity range 20 to 80 RH no condensation Storage temperature range 20 to 60 C Storage humidity range 20 to 80 RH no condensation Supply voltage 12 V 1 V using the B9825MJ power cable supplied from the probe power supply terminal provided by the DL Series O
5. o indicate that the user must refer to the user s manual for special instructions The same symbol appears in the corresponding place in the user s manual to identify those instructions In the manual the symbol is used in conjunction with the word WARNING or CAUTION VANAN e Calls attention to actions or conditions that could cause serious or fatal injury to the user and precautions that can be taken to prevent such occurrences CAUTION Calls attentions to actions or conditions that could cause light injury to the user or damage to the instrument or the user s data and precautions that can be taken to prevent such occurrences Note Calls attention to information that is important for proper operation of the instrument 1 Overview The 701935 is a signal source used to correct the difference in the signal transfer time skew delay between voltage and current probes If using a Yokogawa oscilloscope equipped with the Auto Deskew function the skew can be adjusted automatically Note e When correcting the skew use the falling edge of the waveform of the voltage and current signals that the 701935 outputs e When connecting the current probe match the direction of the arrows indicating the current direction of the 701935 and the current probe e Securely connect the ground terminal negative input on a differential probe usually black of the probe to the terminal of the voltage output terminal of the 701935
6. or hitting it against another object Do not use the 701935 with the name plate panel facing down e Since the 701935 is compact and light it is easy to tilt the 701935 when voltage and current probes are connected attached Place the 701935 and probes on a flat even surface and be sure that the 701935 does not tilt Operating environment limitations See below for operating environment limitations CAUTION This product is a Class A for industrial environments product Operation of this product in a residential area may cause radio interference in which case the user will be required to correct the interference Waste Electrical and Electronic Equipment Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This directive is only valid in the EU This product complies with the WEEE Directive 2002 96 EC marking requirement z This marking indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control instrumentation product Do not dispose in domestic household waste When disposing products in the EU contact your local Yokogawa Europe B V office The Following Symbols are Used in this Manual A Improper handling or use can lead to injury to the user or damage to the instrument This symbol appears on the instrument t
7. rent of the falling edge dersan Signer eae as aad ce IM 701935 01E
8. scilloscope or the power supply Model 700938 or 701934 Supply current 150 mA or less External dimensions 82 8 mm W x 32 5 mm H x 69 2 mm D excluding protrusions Weight Approx 150 g Standard accessories B9852MJ power cord 1 piece User s Manual 1 piece this manual Emission Complying standard EN61326 1 Class A e EN61326 2 1 EN55011 Class A Group 1 e C tick EN55011 Class A Group 1 This product is a Class A for commercial environment product Operation of this product in a residential area may cause radio interference in which case the user is required to correct the interference Immunity Complying standard EN61326 1 Table 2 for use in industrial locations 4 Operating Procedure 1 Connect the power cord to the 701935 power connector 2 Connect the other end of the power cord to the probe power supply of the DL Series Oscilloscope or the 700938 or 701934 Power Supply 3 Connect the tip of the voltage probe passive probe or differential probe to the voltage output terminal of the 701935 4 Connect the BNC connector end of the voltage probe passive probe or differential probe to the signal input terminal of the DL Series Oscilloscope 5 Connect Clamp the current probe to the current output terminal of the 701935 6 Connect the BNC connector end of the current probe to the signal input terminal of the DL Series Oscilloscope Set the probe of the signal input terminal of the oscillos
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