Wavetek Meterman LP10A страница 11 Скачать руководство пользователя

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SPECIFICATIONS
Input signal

Levels

LED’s

BEEPER(LP25A)

Logic “1”

TTL: > 2.3 V

0.2 VDC

HI (Red) ON

Fixed Tone

CMOS: >70 % Vcc

10%

HI (Red) ON

Logic “0”

TTL: < 0.8 V

0.2 VDC

LO (Green) ON

Fixed Tone

CMOS: <30 % Vcc

10%

LO (Green) ON

Bad Logic Level or Open circuit

none

No Tone

Square Wave

< 200 Hz

HI and LO blinking

Variable Tone

at frequency rate

Square Wave

> 200 Hz

HI and LO may or

Variable Tone

may not be ON

at frequency rate

Содержание Meterman LP10A

Страница 1: ... TM ...

Страница 2: ...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 co...

Страница 3: ...ed 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 a...

Страница 4: ...strument do not use it in a 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 Certifications and Precautions iii Preparation for use 1 Introduction 1 Control descriptions 3 Operation 3 Maintenance and Repair 4 Specifications 7 ...

Страница 5: ...ual 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...

Страница 6: ...2 TTL HI LO TTL CM O S M E M PU LSE LP25A HI LO CM OS MEM P ULS E LP10A LP25A LP10A ...

Страница 7: ...ION 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 are 0 to 5 15 VDC The PULSE MEM switch should be in PULSE for Pulse or Logic level testing ...

Страница 8: ... 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 w...

Страница 9: ...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 company 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 n...

Страница 10: ......

Страница 11: ...70 Vcc 10 HI Red ON Logic 0 TTL 0 8 V 0 2 VDC LO Green ON Fixed Tone CMOS 30 Vcc 10 LO Green ON Bad Logic Level or Open circuit none No Tone Square Wave 200 Hz HI and LO blinking Variable Tone at frequency rate at frequency rate Square Wave 200 Hz HI and LO may or Variable Tone may not be ON at frequency rate ...

Страница 12: ...ty 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 ...

Страница 13: ...y Current 5V 30 mA 40 mA 15 V 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 ...

Страница 14: ... 20 kHz to 20 MHz Minimum Pulse width 100 ns 50 ns 30ns Pulse amplitude 3 V Input Impedance 1 MΩ 1 MΩ Pulse Indicator Flash Time 500 mS 500 mS Audible tone at pulse rate no yes Operating Temperature 0 C to 50 C at 80 R H Storage Temperature 20 C to 65 C at 75 R H ...

Страница 15: ... 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...

Страница 16: ......

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