Accurately observe high-speed differential signals - Electro
Contents
1. 100 3 40 gt g 9 Q 5D 10 3 Bo 2D H 2S 1 10 100 1000 Frequency MHz Operation 1 Connect the power supply probe of the product to the power supply connector of DL series or to 700938 2 Simply plug in the BNC output connector to the vertical input of a oscilloscope In this case set the input resistance of the oscilloscope to 50 Q 3 Using the appropriate probe accessories connect the input to the circuits under measurement A To protect against electric shock the ground side of the output cable the shielded side of the BNC connector must be grounded e When disconnecting the BNC connector always first separate the probe from the high voltage parts of the circuit under measurement CAUTION Use a soft cloth to clean the dirt Prevent damage to the probe Avoid immersing the probe Avoid using abrasive cleaners Avoid using chemicals contains benzene or similar solvents AN INO be y ______ Accurate measurement may not be possible near objects with strong electric fields like cordless equipment or strong magnetic fields like transistors or large current circuits IM 701920 01E 1st Edition2. 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 Grounding of the measuring instrument The protective grounding terminal of the measuring instrument must be connected to ground Connecting the object of measurement Make sure to avoid an electric shock when connecting the probe to the object of measurement Do not remove the probe from the measuring instrument after the object of measurement is connected Do not operated with suspected failures If you suspect that there is damage to this probe have it inspect by a service personnel Nondestructive input voltage range Do not apply any voltages exceeding 40 V DC AC peak between input and earth Must be grounded Before connecting the input terminal of the probe to the object of measurement ensure that the measuring instrument is properly grounded and that the probe s output connector is attached to the BNC connector of the measuring instrument Do not operate without cover To avoid electric shock or fire hazard do not operate this probe with the cover removed Do not operate in wet damp conditions To avoid electric shock do not operate this probe in wet or damp conditions Do not operate in explosive atmosphere To avoid injury or fire hazard do not operate this probe in an explosive atmosphere Avoid exposed circuitry To
3. Model 701920 Differential Probe for DL Series User s Manual Thank you for purchasing the YOKOGAWA 701920 Diffrential Probe To optimize all the functions of the instrument please read the manual thoroughly before operating it Disk No DLO6 1st Edition April 2001 YK All Rights Reserved Copyright 2001 Yokogawa Electric Corporation YOKOGAWA Yokogawa Electric Corporation IM 701920 01E 1st Edition Safety Precautions Make sure to comply with the safety precautions mentioned hereafter when handling the probe YOKOGAWA ELECTRIC Co assumes no responsibility for any consequences resulting from failure to comply with these safety precautions Also read the User s Manual of the measuring instrument thoroughly so that you are fully aware of its specifications and handling before starting to use the probe General definitions of safety symbols and markings A This symbol indicates the risk of injury death of personnel or damage to the instrument Protective grounding terminal 4 Danger High voltage WARNING This symbol calls attention to a procedure practice condition or the like which if not correctly performed or adhered to could result in injury or death of personnel This symbol calls attention to a procedure practice condition or the like which if CAUTION not correctly performed or adhered to could result in damage to or destruction of part of the product Make sure to
4. avoid injury remove jewelry such as rings watches and other metallic objects Do not touch exposed connections and components when power is present A N CAUTION Nondestructive input voltage range Do not apply any voltages exceeding the Nondestructive input voltage range to the probe Use proper power source Use the power supply connector for the probe of DL series or use the 700938 power supply Do not operate this probe from a power source that applies more than the voltage specified Terms appear in this manual Note Provides information that is important for proper operation of the instrument 1 Description The 701920 Differential Probe is an active probe with a frequency bandwidth of 500 MHz and attenu ation ratio of 10 1 2 Appearance As shown in the following illustration the probe consists of a main body and standard accessories A Standard Accessories B c D E F rACTIO 3 Connector pin arrangement of the power supply cable Differential probe Optional Accessories Name Accessories for Differential probe Part No B9852SZ Name Q Single pin Twin pin adapter sml Twin pin adapter Ig Connection lead red long Connection lead black long Connection lead red short Connection lead black short Pincher tip red sml Pincher tip black sml Pincher tip red lg Pincher tip black Ig BtoL m kk kk e
5. k DY OD Specifications Input type Frequency bandwidth Attenuation ratio Balanced differetial input DC 500 MHz for probe 10 1 3 when connected to a resistance of 50 Q 1 Output offset voltage 5 mV 50 mV when converted into input terminal Differetial input voltage range 12 V Common mode input voltage range 30 V Nondestructive input voltage range 40 V DC AC peak Input resistance typical value 100KQ relative to ground Input capacity typical value 2 5pF relative to ground CMRR typical value 60dB 1MHz 17dB 500MHz External dimensions 111 mm x 22 mm x 14 mm excluding cable and accessory Total cable length 1 2 m probe cable 1 m power supply cable Weight Approx 130 g Operating temperature 5 to 40 C Operating humidity 25 to 85 RH no condensation Storage temperature 20 to 60 C 25 to 85 RH no condensation Power supply voltage 12 V 1V Usable range 11 to 13 V or 11 to 13 V Power supply current Current of the power supply terminal is less than 125 mA EMC Complying standard EN55011 1998 Class B EN61000 3 2 1995 A1 A2 1998 EN61000 3 3 1995 EN50082 1 1997 Storage humidity 1 Reference operation conditions Ambient temperature 23 5 C Ambient humidity 55 10 30 minutes after the power supply is applied 2 For the relation between frequency and input voltage derating see the graph below Relation between frequency and input voltage derating
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