Model 701981 250MHz Logic Probe for D Series
Contents
1. Connecting the Probe to the DL Always turn OFF the DL s power switch when connecting or disconnecting the logic probe Grounding The logic probe s ground connects internally with the DL s ground Clean the Instrument Properly 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 The following symbols are used in this manual Affixed to the instrument Indicates danger to personnel or instrument and the op erator must refer to the User s Manual The symbol is used in the User s Manual to indicate the reference WARNING Describes precautions that should be observed to prevent serious injury or death to the user Describes precautions that should be observed to prevent minor or moderate injury _CAUTION or damage to the instrument Note Provides important information for the proper operation of the instrument 1 Description The model 701981 250 MHz Logic Probe has a maximum toggle frequency of 250 MHz and accepts up to 8 bits of input 2 Appearance As shown in the following illustration the probe consists of a main body and standard accessories j 701981 lA 250 MHz LOGIC PROBE ol LA w it oooooonoD 0000 TETT a use 19k09pF RECOMMENDED 2 Rove2. 1 10 100 1000 Frequency MHz How to Use the Probe 1 Turn OFF the DL s power switch 2 Connect the cable to the logic probe 3 Connect the probe tips and earth leads to the logic probe 4 Connect the logic probe cable to the probe connector on the DL then turn ON the DL s power switch 5 Use earth lead B9852VU or B9852VV to connect the ground of the circuit under test To observe high speed signals connect from the probe tip ground using earth lead B9852VV 6 Connect the probe input to the circuit under test Connecting the Probe Tip Connect the earth leads for main unit in the same manner Probe tip Removing the Probe Tip Remove the earth leads for main unit in the same manner Insert a pointed tool such as a pair of tweezers into the location shown in the figure below then drag the tool in the direction of the arrow to release the probe tip Note ___sssssssssSsSSSSSSSSSSSSSSSSSSSSSFSFFe 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 701981 01E 1st Edition
3. CABLE OnLy G BOADE YOKOGAWA wo gt H F A Logic Probe Standard Assessories Optional Assessories Name Qty Part No Name Part No Probe tip 8 B9852VM IC clip B9852ES Earth lead for main unit 2 B9852VU Earth lead for terminal 8 B9852VV Cable 1 B9852VN Pincher tip black 10 B9852VX 8 1 Pincher tip red Pincher number stickers B9852VY rIonmoow Specifications Inputs 8 Nondestructive input voltage range 40 V DC AC peak or 28 Vrms Threshold level 10 V at 0 1 V resolution Threshold level accuracy 100 mV 3 of setting Input voltage range 10 V Input impedance typical value 10 kQ 9 pF Minimum input voltage 500 mVp p Maximum toggle frequency 250 MHz or more Minimum pulse width 2ns Hysteresis voltage typical value 50 mV External dimensions 85 7 mm x 64 2 mm x 20 mm excluding cable and accessory 1 Reference operation conditions Ambient temperature 23 2 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 Derating by Frequency 100 40 o Nondestructive input voltage V p p
4. User s Model 701981 Manual 250MHz Logic Probe for DL Series Thank you for purchasing the YOKOGAWA 701981 250 MHz Logic Probe To optimize all the functions of the instrument please read the manual thoroughly before operating it Disk No DLO6 1st Edition February 2003 YK All Rights Reserved Copyright 2003 Yokogawa Electric Corporation YOKOGAWA Yokogawa Electric Corporation IM 701981 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 The following symbols are used on this instrument A To avoid injury death of personnel or damage to the instrument the operator must refer to an explanation in the User s Manual or Service Manual 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 WARNING 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 whe
5. n 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 input connector of the DL 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 avoid injury remove jewelry such as rings watches and other metallic objects Do not touch exposed connections and components when power is present CAUTION AN Nondestructive input voltage range Do not apply any voltages exceeding the Nondestructive input voltage range to the probe Connecting the Probe to the Circuit under Test Always use the accessory probe tip when connecting to the circuit under test
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