Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley 160_163 160(Model160_and163)
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INSTRUCTION MANUAL
Model 160
Digital Multimeter
and Model 163
Digital Voltmeter
J
OCOPYRIGHT 1976, KEITHLEY INSTRUMENTS, INC.
PRINTED MAY 1976, CLEVELAND, OHIO, U.S.A.
MODELS 1.60.163
CONTENTS
MODEL 160,163
ILLUSTRATIONS
r
1.4
15 2?
16 ,.
ii(
17 i7
18
1.9
2"
21.
22
23
MODELS 160,163
SPECIFICATIONS
1074
SECTION 1. GENERAL DESCRIPTION
1171
Functional 0escripti.m
2-4
2-3
SECTION 2. OPERATION
MODELS 160, 163
I<,~,
,,,,:,:,, ,,,,,:.,:,!,,,:,i;d :,L,,I.,. : :. ., ,'
T"p"t
Volt.3 Readout Designation
I
1.999 x 10-3 1.999 Ill"
1.999 x 10:: 19.99 Ill"
1.999 x 1" 199.9
1.999 1.999 v
19.99 19.99 "
1~99.9 199.9 v
1000
MODELS 160, 163
Decimal Point
I'ositio"
xx.x
.xxx
xxx
x.xx
xx.x
xxx
0572
specifications, model 1602
8
I
SECTION 3. CIRCUIT DESCRIPTION
-----------------------------.
14
ACCESSORIES M0Dm.S 160, 163
SECTION 4. ACCESSORIES
GENERAL. The Model 1601 is a combination ac-dc probe
that enables the user co measure voltages from 45 HZ
to 45 kHz when used with either the Model 160 or 163. Item NO. Description KeiChley Part No.
me slide svitch (S101) can be used eo Select either
AC mode or straight-through DC Mode. 246548
24656C
SPECIFICATIONS : 3 Body, Rear 2465X
4 strain Relief 186768
-MODE: Straight-through probe does not alter any 5 Cable, Ground (13" long) SC-33
Model 160 or 163 specifications except: 1. 150 pico- 6 Clip, Alligator (cround) AC-10
farads input capacitance, 2. 0.5 ampere nlaximum I Insulator (alack) AC-I.,,
current, 3. 0.3 ohm resistive offset, 4. i*o micro- 8 Cable (40" long) SC-30
volts thermal offset. 9 strain Rel~ief 186768
10 Can Shield 25128A
AC (Voltage only):
ACCURACY (400 Hz):.+l% af reading or i0.L volt,
whichever is greater (rms of sine wave to dc can-
"WSiO").
FREQUENCYRESPONSE: -2% at 45 Hz and 45 kllz.
RANGE: 250 volts rms maximum.
MAXIMUM OVERLOAD: Peak ac plus dc bias must not
exceed 400 volts.
INPUT IMPEDANCE: 0.5 megohm, shunted by less than
20 picofarads.
OUTPUT IMPEDANCE: output: m"St he shunted by 10.2
megohms iI% for rated accuracy (Model 160 and 163
impedance on 1000, 100 and lo-volt ranges). 10%
variation in the 10.2 megohms cauaea 1% additional
error.
CONNECTOR: Shielded Banana Plug
"IMENSIONS, WEIGHT: 6" long x 314" diameter (150 x
20 m), 3-ft. (1 m) cable, nee weight 114 pound
(0.1. Kg).
ELECTRICAL PARTS LIST: (See schematic 24669C)
circuit
"
"eslg. "`ZSCriptiO" Code Dart NO. Part NO.
JlOl Banana Plug (2 req'd) 74970 108-750-Z 11G-3
SlOl Switch, AC-DC 80164 SW-334
Cl01 capacitor, .047 pF 97419 MZW-F C197-.047M
Cl02 capacitor, 0.1 p 13050 MwlA C86-.lM
DlOl Transistor 07263 2N3565 w-39
0102 Transistor 07263 2N3565 TO-39
D103 Diode 04713 IN4006 RF-38
RlOl Resistor, 3.92 MO 91637 DC-l/4 13178-3.92M
1~102 Resistor, Selected in `rest 07716 CEA R88
R103 Resistor, 1 Ml 91637 NT-l/8 R179-1M
RI04 Resistor, 100 n 44655 KC"7 R76-100
MAINTENANCE:
S,ince the probe assembly should provide good service
with normal handling no maintenance is usually necessary.
The probe body (Items 2 and 3) is fastened together at
the factory using a special solvent. Therefore the
probe should not be disassembled. If repair is neces-
mry contact the Keithley Representative in your area.
16 1171
Modei 1603 ~(xtender Card hit
SECTION 5. SERVICING
I0
20
SECTION 6. CALIBRATION
CALIBRATION MODELS 160. 163
'TXHLE 6-l.
Test Equipment
Voltmeter, Digital i-l,," eo +1ooov Keitbley, Model 160 Zero Adjustment
Voltmeter, Differ- 1i.mie of error Keithley, Model 662 Voltage Calibi-ation
+0.01% of readin current 3'
Voltage source .003% voltage mode Fluke Model 3330" Voleage Calibraeion
10, 100, 1000 vol.ts 10 100 1000 Volts
io megohms maximum Current Calibration
_.-.--
rrent Calibration
o.hA to lOOti
FIGURE 15. chassis, ilotrom View.
MODELS 160, 163
SERVICING MODELS 160, 163
FIGURE 16. Calibration Controls.
24
series
100
200
JO"
400
50"
6""
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