Equipment information

Keithley 168 Digital multimeter
Manufacturer:
Model:
168
Date:
1974
Category:
Group:
Description:
Autoranging DMM

Information

The model 168 is a versatile autoranging Digital multimeter useful for measurement of ac and dc voltage, ac and dc current, and resistance. Voltage measurements can be made from ±0,0001 volt to ±1000 volts dc or 0.0001 volt to 500 volts ac. Current measurements can be made from 0.0001 mllliampere to 1 ampere ac and dc in two spans. Resistance measurements can be made from 0.1 ohm to 20 megohms in two overlapping spans. Range and polarity is automatically selected. In addition to the display of digits, the 168 indicates decimal point, function (AC or DC), and measurement unit (mA, A, kΩ, MΩ).

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Service and User Manual
Manual Type:
Service and User Manual
Pages:
95
Size:
2.67 Mbytes (2797988 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
01 January 1974
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
22 July 2020
MD5:
5c158ee858e4b509b303b83fcb4471d9
Downloads:
157

Information

Title Page ... 1 Contents ... List of Illustrations ... III Dimensional Data ... lv Specifications ... v 1. General Information. ... J 1-1. Introduction ... 1 1-2. Warranty Information ... 1 1-3. Change Notice ... 1 2. Initial Preparation ... 5 2-1, General. , ... 5 2-2. Inspection ... 5 ?-3- Preparation for Use ... 5 3. Operating Instructions ... 12 3-1. General ... 12 3-2. How to Select Power, ... 12 3-3. How to Make Input Connections ... 13 3-4. How to Select Function ... 15 3-5. How to Measure Voltage ... 16 3-6. How to Measure Current ... 19 3-7, How to Measure Resistance ... 26 4. Theory of Operation ... 31 4-1. General ... 31 4-2. Analog Circuitry ... 31 4-3. DC Voltage Operation ... 34 4-4. AC Voltage Operation ... 36 4-5. OHMS Operation ... 38 4-6. Current Operation ... 40 4-7. Power supply ... 40 4-8. Digital Circuitry ... 41 5. Maintenance ... 50 5-1. General. ... 50 5-2, Required Test Equipment. ... 50 5-3. Performance Verification ... 50 5-4. Adjustment/Calibration Procedure ... ... 58 5-5, Troubleshooting. ... 68 6. Replaceable Parts ... 72 6-1. General ... 72 6-2. Ordering Information ... 72 6-3. Cross Reference ... 73 6-4. Parts List ... 74 7. Schematic Diagrams ... 85

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