Keithley 171 Instruction Manual page 30

MODEL 171 MAINTENANCE
TABLE 5-4.
Accuracy Check for DCA
source
Input
Range Switch
sensitivity
Reading Temperature
Tolerance Coefficient
1liA
lOUA
loo!&4
1UlA
lO"!A
lOOn!A
lOOmA
?O.Ol%
?O.Ol%
f0.0065%
iO.O065%
+0.0065%
iO.O065%
i-0.0065%
l!JA
lOUA
1OOuA
lm.4
1omA
lOOmA
1ooomA
l.OOOO~A +7 digits to.7 diSit/'C
10.
OOOUA
27 digit8
20.7 diSlt/'L
100.00,~A 27 digits
to.7 digit/-C
1.oooomA ~7 digits
to.7 digit/Y
10.000mA t7 digits k0.7 digit/-C
1oo.oomA +7 digits ~0.7 digif/'C
0100.0mA +3 digits
20.7 digit/Y
TABLE 5-5.
Accuracy Check for AC.4
source
Input*
Range Switch
sensitivity
Reading
Tolerance
Temperature
Coefficient
lll.4 f0.14% 40HP200HZ
1UA
1.0000uA ~160 digits +5 digits/'C
lOuA i-0.14% 40Hz-10kHz lOuA 10.000UA ?160 digits ?5 digits/Y
lOO!lA
iO.14% 40"z-10kHz
1OOUA
100.00"A f160 digits ?5 digits/Y
l"lA
?0.14% 40Hz-10kHz lll!A 1.0000mA t160
digits
?5 digits/-C
lOmA
f0.14% 40Hz-10k"z
lOmA
10.000nA t160 digits 25 digits/'C
lOmA
kO.145: 40"~~10k"z lOOmA 010.00m4 k 25 digits f5 diSite/'C
lOmA
f0.14% 40Hz-10kHz 1ooomA 0010.0m4 t 12 digits 25 diSits/"C
*RMs of a sine WBVB.
TABLE 5-6.
Accuracy Check for OHMS
source
1"WC
Range Switch
SensitivitY
Reading
Tolerance
Temperature
Coefficient
lkn *0.007%
1Okn *0.007%
lOOka ?0.007%
lM0 iO.O07%
1OMn t 0.022%
lOO"ri
*0.03%
1OOOMQ i2%
lkn l.OOOOkn
1OkQ
lO.OOOkn
lOOki? lOO.OOkn
1l'ln
l.OOOOMLi
1om 1o.ooom
1OOMrz 1oo.ooMo
1OOOim
1ooo.om
t7 digits
t7 digits
27 digits
t7 digits
f22
digits
?302
digits
f2002
digits
773
25