Информация по оборудованию

Keithley 177 Цифровой универсальный измерительный прибор
Производитель:
Keithley
Модель: 177
Дата: 1978
Категория: Измерительная техника
Группа: Цифровой универсальный измерительный прибор
Описание: Microvolt DMM
Информация:

INTRODUCTION The Keithley Mode! 177 Microvolt DMM is a versatile, highly sensitive Digital multimeter which is used for measurement of DC and AC voltages, DC and AC currents, as well as resistance. For a complete summary of ranges for each of these five functions, refer to the specifications at the front of this manual. Ranges and functions are easily selected with front panel pushbuttons, while connections for ail functions are easily made with a single set of front panel input terminals. model 177 FEATURES 1. 4 1/2 Digit LED Display—An easy to read 4 1/2 digit display shows 20,000 counts of information with automatic polarity indication. 2. 1µV/1mΩ Resolution—The model 177 is capable of reading DC voltages as low as 1µV and resistances down to 1mΩ. 3. Front Panel Zero—The front panel zero control may be used to compensate for thermal offsets or lead resistance when making measurements. 4. Analog Output—An analog output of 1V/10,000 counts is available on the rear panel.

Эти руководства доступны для вышеуказанного оборудования:

Ручной тип: Обслуживание и Руководство пользователя Keithley-432-Manual-Page-1-Picture
Страниц: 54
Размер: 2.68 Mbytes (2805020 Bytes)
Язык: английский
Редакция:
Руководство ID/номер:
Дата:
Качество: Сканированный документ, читая частично плохо, частично не читается.
Дата загрузки:
MD5: 7d861578956a524c2d516a297378939b
Загрузки: 2367 начиная с 24 Февраль 2008
Информация:

Instruction Manual

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Ручной тип: Обслуживание и Руководство пользователя Keithley-11205-Manual-Page-1-Picture
Страниц: 54
Размер: 3.00 Mbytes (3144607 Bytes)
Язык: английский
Редакция:
Руководство ID/номер: 29683
Дата: 01 Январь 1978
Качество: Отсканированы документу, все читается.
Дата загрузки:
MD5: e1193fa91e47378f40956bfa45200780
Загрузки: 298 начиная с 21 Август 2018
Информация:

SECTION 1 —GENERAL INFORMATION 1.1 Introduction ... 1-1 1.2 Model 177 Features ... 1-1 1.3 Warranty Information ... 1-1 1.4 Manual Addenda ... 1-1 1.5 Safety Symbols and Terms ... 1-1 1.6 Safety Precautions ... 1-1 1.7 Specifications ... 1-1 1.8 Unpacking and Inspection ... 1-2 1.9 Scope of model 177 Instruction Manual ... 1-2 1.10 Optional Accessories ... 1-2 1.10.1 PowerOptions ... 1-2 1.10.2 Cables and Connectors ... 1-2 1.10.3 Probes and Shunts ... 1-2 1.10.4 Carrying Case and Rack Mount ... 1-2 1.10.5 Output Options ... 1-2 SECTION 2-OPERATION 2.1 Introduction ... 2-1 2.2 Safety Precautions for High Energy Circuits ... 2-1 2.3 Preparation for Use ... 2-1 2.4 Operation on Line Power ... 2-1 2.5 Operation on Battery Pack Power ... 2-1 2.6 Battery Charging ... 2-1 2.7 Operating Instructions ... 2-3 2.8 Zero Adjustment ... 2-3 2.9 DC Voltage Measurement ... 2-3 2.10 AC Voltage Measurement ... 2-5 2.11 Resistance {S2) Measurement ... 2-6 2.12 DC Current Measurement ... 2-7 2.13 AC Cu rre nt M easu rement ... 2-7 2.14 TRMS Measurements {AC + DC) ... 2-8 2.15 Analog Output ... 2-8 2.16 Tilt Bail Adjustment ... 2-8 SECTION 3-PERFORMANCE VERIFICATION 3.1 Introduction ... 3-1 3.2 Recommended Test Equipment ... 3-1 3.3 Environmental Conditions ... 3-1 3.4 Performance Verification Procedure ... 3-1 3.4.1 Initial Conditions ... 3-1 3.4.2 DC Voltage Accuracy Check (2V to 1200V Ranges) ... 3-1 3.4.3 DC Voltage Accuracy Check (20mV and 200mV Ranges) ... 3-2 3.4.4 AC Voltage Accuracy Check ... 3-2 3.4.5 Resistance (Q Accuracy Check) ... 3-2 3.4.6 DC Current Accuracy Check ... 3-3 3.4.7 Analysis ... 3-3 SECTION 4-THEORY OF OPERATION 4.1 Introduction ... 4-1 4.2 Overall Operation ... 4-1 4.2.1 Signal Conditioning ... 4-1 4.2.2 A/ D Converter ... 4-2 4.2.3 Range Switching ... 4-2 4.3 AC Converter ... 4-2 4.3.1 Scaling ... 4-2 4.3.2 AC Conversion ... 4-2 4.3.3 AC Current Measurements ... 4-2 4.4 DC Signal Conditioning ... 4-2 4.4.1 Input Attenuation ... 4-3 4.4.2 Chopper ... 4-3 4.5 Ohms Conversion ... 4-4 4.5.1 Floating Current Source ... 4-4 4.5.2 Chopper ... 4-4 4.5.3 Adjustments and Input Overload Protection ... 4-4 4.6 Analog Output ... 4-4 4.7 Clock ... 4-4 4.8 A/D Converter ... 4-4 4.8.1 Auto-Zero ... 4-5 4.8.2 Signal-lnterface ... 4-5 4.8.3 Reference-Integrate ... 4-5 4.9 Display ... 4-6 4.10 AC Power Supply ... 4-6 4.11 Model 1788 Battery Pack ... 4-6 4.11.1 Battery Charging Circuit ... 4-6 4.11.2 Battery Operation and Shutdown Circuit ... 4-6 SECTION 5-MAINTENANCE 5.1 introduction ... 5-1 5.2 Recommended Test Equipment ... 5-1 5.3 Environmental Conditions ... 5-1 5.4 Calibration Procedure ... 5-1 5.4.1 Calibration Shield Installation ... 5-1 5.4.2 Warm-Up ... 5-1 5.4.3 Calibration Instructions ... 5-1 5.5 Troubleshooting ... 5-2 5.6 Troubleshooting Procedure ... 5-2 5.6.1 Calibration Shield/Battery Pack Removal ... 5-2 5.6.2 Line Power ... 5-4 5.6.3 Battery Power ... 5-4 5.6.4 Display and A/D Converter ... 5-4 5.6.5 AC Converter ... 5-4 5.6.6 Chopper Amplifier and Ohms Source ... 5-4 5.6.7 Current Shunts ... 5-4 5.7 Front Panel ZERO Knob Removal and Replacement ... 5-4 5.8 Fuse Replacement ... 5-5 5.9 Model 1788 Battery Pack Installation ... 5-6 SECTION 6—REPLACEABLE PARTS 6.1 Introduction ... 6-1 6.2 Parts List ... 6-1 6.3 Ordering Information ... 6-1 6.4 Factory Service ... 6-1 6.5 Component Location Drawings ... 6-1 6.6 Schematic Diagrams ... 6-1 6.7 Maintenance Kit ... 6-1

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