Keithley 179A Instruction Manual

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tlktir max. MAXIMUM INPUT: 24 250” DC o, rms (fuse protected, except ‘or 20A range: l5A continuous. 20A for 1 minute lunfusedl. TEMPERATTURE COEFFlClENT OF-18°C Et 28°-!XioC,: DC f,O.Ol% +O.Zd,,T. AC * lO.O7% +2dlPC. CREST FACTOR Iratio of ...

TABLE OF CONTENTS PARAGRAPH TITLE PAGE 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 SECTION 1 GENERAL INFORMATION Introduction. ............ .................... Features ..................................... Warranty Information ... ... .................. ManualAddenda.........~ .................... Safety Symbols and Terms ..................... Unpacking and Inspection ...

TABLE TITLE PAGE 3-2 3~3 3~4 3-5 4~1 4-2 4-3 4-4 5~1 5~2 53 5~4 5-5 5-6 6-l 6~2 6~3 6-4 Model 179A Maximum Allowable Inputs 2-4 Recommended Test Equipment for Performanceverification ........................ 3-1 DC Voltage Performance Check .................. 3~2 AC Voltage Performance Check .................. 3-2 Resistance Peformance Check . ...

4% digit TRMS multimeter useful for measurement of AC and DC voltage, AC and DC Current and resistance. Ranges and accuracies are listed in the detailed specifications which precede this section, Ranges and functions are zselected with front panel push buttons (see Figure Z-2). The ...

Output: lmVI°C; compatible with any DMM with at least 10MII input impedance Accuracy: kZ°C from O” to 100°C; f3”C from -55’ to O°C and 100° to 150°C Power: 9V alkaline or C-Zn (NEDA 16041 battery. 4. Model 1600A High Voltage Probe extends the DMM to 40kV. Maximum Input: 40kV DC or peak AC to 300Hz Input Resistance: IOOOMR Di ...

ready to use. The instrument may be powered from line voltage or from rechargeable bat- teries (when the optional Model 1788 Rechargeable Battery Pack is installedl. 21.1 Line Power The Model 179A is provided with a three-wire line cord which mates with third-wire grounded receptacles. Con ...

They are not intended for adjustment during operation. Figure 2-l. Rear View Showing Line Switch MlNUS SIGN DISPLAYED PLVS SIGN IMPLIED OVERRANGE IS INDICATED BY A FLASHING “0000” EXCEPT ON THE 1000 VOLT RANGE ‘MENT Figure 2-2. Model 179A Front Panel View 2-2 ...

in the 20k. 200k. 2000k and 20M ranges. Full range voltage drop is 2 volts and is sufficient to cause forward conduction of semiconductor junctions. The HI terminal is positive. B. Use the LO mode for measurements in the 2k, 20k. 200k and 2000k ohm ranges. Full range voltage drop is 2OOmV. Maximum open circuit voltage is 5 ...

2. Select desired range. 3. Connect the unknown AC voltage to the INPUT jacks of the Model 179A as shown in Figure 2-4. 4. Note the reading on display. -Maximum Inputs 450V rms continuous; 1200V peak, for lo seconds per minute. 1200V peak. 1OOOV rms; 14 ...