LP10A Logic Probe User Manual.
Contents
1. connection and this manual If any of the items are damaged or missing immediately return the complete package to the place of purchase for an exchange INTRODUCTION The LP10A and LP25A Logic Probes are logic troubleshooting instruments that give visual LED s and audio indications LP25A only of logic levels and pulses They will also capture positive or negative events as short as 30 nanoseconds The probe is powered by the circuit under test LP25A 5 lt gt 5 H LP25A Ih LP10A 8 24 gt 5 8 2 1 CONTROL DESCRIPTIONS TTL CMOS set for logic family of the circuit under test PULSE MEM PULSE normal operation mode for pulse or level detection MEM pulse capture or memory OPERATION Setup Connect the black alligator clip to ground or common of the circuit under test Connect the red mini hook clip to Vcc of the circuit under test Select TTL or CMOS with the TTL CMOS switch depending upon the type of logic being tested TTL level is nominal 0 to 5 VDC and CMOS levels 0 to 5 15 VDC The PULSE MEM switch should be in PULSE for Pulse or Logic level testing 3 Using the Logic Probe Touch the LP10A or LP25A probe tip to the circuit point under test The probes LED s indicate the logic level or signals presen2. PER LP25A Fixed Tone Fixed Tone No Tone Variable Tone at frequency rate Variable Tone at frequency rate Input signal Levels LED s BEEPER LP25A Narrow Hi Pulse LO Green blinking Variable Tone Low with POS pulse intensity depends on at frequency rate pulse duty cycle Narrow Lo Pulse HI Red blinking Variable Tone High with NEG pulse intensity depends on at frequency rate pulse duty cycle PULSE PULSE uses the pulse detection modes listed above MEMory MEM allows the probe to capture a positive or negative pulse The YELLOW LED will come ON and stay ON until switch is reset to PULSE See page 10 for specifications Electrical Specifications LP10A LP25A Power Supply 5 15 VDC 5 15 VDC Power Supply Current 5V 30 40 15V 80 mA 90 mA Power Supply Protection 20 VAC VDC 20 VAC VDC Maximum Input voltage 40 VAC VDC 40 VAC VDC 15 seconds Size 210 8 2 x 18 0 7 x 18 0 7 mm in Weight 38 1 1 3 42 6 1 5 gm oz TTL CMOS selectable yes yes Maximum Input Signal Frequency 20 MHz 20 MHz Minimum Detectable Pulse Width Frequency 1 kHz 1 to 20 kHz 20 kHz to 20 MHz Minimum Pulse width 100 ns 50 ns 30ns Pulse amplitude Input Impedance 1 MQ 1 MQ Pulse Indicator Flash Time 500 mS 500 mS Audible tone at pulse rate no yes Operating Temperature 0 to 50 C at 80 R H Storage Temperature 20 C to 65 C at 75 R H 10 Safety This instrument is intended for
3. WAVETEK Meterman Operator s Manual 6 LP10A LP25A 5 Digital Multimeter WARRANTY The LP10A and LP25A Logic Probes are warranted against any defects of material or workmanship within a period of one 1 year following the date of purchase of the Logic Probe by the original purchaser or original user Any Logic Probe claimed to be defective during the warranty period should be returned with proof of purchase to an authorized Wavetek Meterman Service Center or to the local Wavetek Meterman dealer or distributor where your Logic Probe was purchased See maintenance section for details Any implied warranties arising out of the sale of a Wavetek Meterman Logic Probe including but not limited to implied warranties of merchantability and fitness for a particular purpose are limited in duration to the above stated one 1 year period Wavetek Meterman shall not be liable for loss of use of the Logic Probe or other incidental or consequential damages expenses or economical loss or for any claim or claims for such damage expenses or economical loss Some states do not allow limitations on how long implied warranties last or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state CERTIFICATIONS AND PRECAUTIONS This instrument is EMC EMI certified Al
4. l inputs are protected against continuous overload conditions up to the limits of each function s stated input protection see specifications Never exceed these limits or the ratings marked on the instrument itself Always inspect your Logic Probe test leads and accessories for signs of damage or abnormality before every use If an abnormal condition exists broken or damaged test leads cracked case display not reading etc do not use Never ground yourself when taking measurements Do not touch exposed metal pipes outlets fixtures etc which might be at ground potential Keep your body isolated from ground and never touch exposed wiring connections test probe tips or any live circuit conductors Do not operate instrument in an explosive atmosphere iv flammable gases fumes vapor dust Do not use this or any piece of test equipment without proper training CAUTION To avoid damaging the instrument do not use it ina place where ambient temperature exceeds 40 C CAUTION To avoid damaging the instrument do not input more than 40 VAC or VDC CONTENTS Page CONTENTS Page Warranty ii Control descriptions 3 Certifications and Precautions iii Operation 3 Preparation for use 1 Maintenance and Repair 4 Introduction 1 Specifications 7 PREPARATION FOR USE UNPACKING Your shipping carton should include the Logic Probe with 0 5 meter long cable with a mini alligator clip for the ground connection and a mini grabber for the Vcc
5. man 52 Hurricane Way Norwich NR6 6JB England Tel 44 1603 404 824 Fax 44 1603 482 409
6. t when the circuit node is probed The LED s response is noted on page 11 MAINTENANCE If there appears to be a malfunction during the operation of the Logic Probe the following steps should be performed in order to isolate the cause of the problem Review the operating instructions for possible mistakes in operating procedure Inspect and test the Test Cables for a broken or intermittent connection Any repair of the Logic Probe should be performed only by a Factory Authorized Service Center or by other qualified instrument service personnel The probe case can be cleaned with a mild solution of detergent and water Apply sparingly with a soft cloth and allow the Logic Probe to dry completely before using Do not use aromatic hydrocarbons or chlorinated solvents for cleaning 4 REPAIR Read the warranty located at the front of this manual before requesting warranty or non warranty repairs For warranty repairs any probe claimed to be defective can be returned to any Wavetek Meterman authorized distributor or to a Wavetek Meterman Service Center for an over the counter exchange for the same or like product Non warranty repairs should be sent to a Wavetek Meterman Service Center Please call Wavetek Meterman or enquire at your point of purchase for the nearest location and current repair rates All probes returned for warranty or non warranty repair or for calibration should be accompanied by the following information or items compan
7. use below the Low Voltage Directive thus is considered exempt from EN61010 1 1993 C EMC This product complies with requirements of the following European Community Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marking However electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit Users should exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference 11 WAVETEK Meterman Manual Revision Date 07 00 Manual Part Number 1566429 Information contained in this manual is proprietary to Wavetek Meterman and is provided solely for instrument operation and maintenance The information in this document may not be duplicated in any manner without the prior approval in writing from Wavetek Meterman Specifications subject to change Wavetek is a trademark of Wavetek Wandel Goltermann Wavetek Meterman 2000 U S Service Center Wavetek Meterman 1420 75th Street SW Everett WA 98203 Tel 877 956 2680 Fax 425 446 6390 Canadian Service Center Wavetek Meterman 400 Britannia Rd E Unit 1 Mississauga ON L4Z 1X9 Tel 905 890 7600 Fax 905 890 6866 European Distribution Center Wavetek Meter
8. y name customer s name address telephone number proof of purchase warranty repairs a brief description of the problem or the service requested and the appropriate service charge for non warranty repairs Please include the test leads with the meter Service charges should be remitted in the form of a check a money order credit card with expiration date or a purchase order made payable to Wavetek Meterman or to the specific service 5 center For minimum turn around time on out of warranty repairs please phone in advance for service charge rates The probe should be shipped with transportation charges prepaid to one of the following addresses or to a service center in U S A Wavetek Meterman 1420 75 Street SW Everett WA 98203 Tel 1 877 596 2680 Fax 425 446 6390 in Canada Wavetek Meterman 400 Britannia Rd E Unit 1 Mississauga ON L4Z 1X9 Tel 905 890 7600 Fax 905 890 6866 in Europe Wavetek Meterman 52 Hurricane Way Norwich NR6 6JB U K Tel int 44 1603 404824 Fax int 44 1603 482409 SPECIFICATIONS Input signal Levels Logic 1 TTL gt 2 3 V 0 2 VDC CMOS gt 70 10 Logic O TTL lt 0 8V 0 2 VDC CMOS lt 30 10 Bad Logic Level or Open circuit Square Wave lt 200 Hz Square Wave gt 200 Hz LED s HI Red ON HI Red ON LO Green ON LO Green ON none HI and LO blinking at frequency rate HI and LO may or may not be ON BEE
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