Keithley 485 Instruction Manual page 4

Autoranging picoammeter
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SPECIFICATIONS
RANGE
RESOLUTION
2nA
O.lpA
20 "A
1 PA
200 "A
10 pA
2
PA
100 PA
20 !A
1 nA
200 ,'A
10 "A
2mA
100 "A
ACCURACY
I1 YEAR,
lW28~C
* l%rdg
+ countslt
0.4
+ 4
0.4
+ 1
0.2
+ 1
0.15 + 1
0.1
+ 1
0.1
+1
0.1
+1
NORMAL
MODE
ANALOG
REJECTION
MAXIMUM
RISE TIME
RATIO
CONTINUOUS
I10 .SO%,
IS0 or EOHz,
INPUTt
60ms
7OdB
350"dC
60iTlS
7OdB
350Vdc
6rnS
65dB
350Vdc
3ms
6FdB
350Vdc
3ms
65dB
5O"dc
lms
65dB
5OVdc
lms
55dB
5OVdc
,NP"T
VOLTAGE
BURDEN:
Less than 200&V.
RANQING:
Manual or autoranging.
AUTORANGING
TIME:
Average 250ms per range.
SmLlNG
TIME AT DISPLAY:
Less than 1 second to within 2 co"nts
on
fixed range.
CONVERSION
PERIOD: 300,"s.
TEMPERATURE
COEFFICIENT
10°-160C B 26°-50"C,:
f10.1
x
BP-
plicable sccuracy specification) per OC.
MAwMUM
COMMON
MODE
VOLTAGE:
30V rms. DC to 60Hz sine
WWB.
ANALOG
OUTPUT:
Output
Voltage:
+ IV = - 10000 co"ntf..
mept
+ 1OOmV = - 10000
mints
0" 2nn range.
OUtput
tIea,*tance:
10000.
REL: Pushbutton
allows zeroing of an range readings. Allows
relative
readings to be made with respect to baseline value. Front panel ~nnuncistor
indicates REL mode.
DATA STORE and MINIMAX:
100 reading storage capacity: records data
at one of six selectable rates from 3 readings/second to 1 reading/hour,
or
by manual triggering.
Also detects and stores maximum and minimum
readings comin"""sIY
while in the data store mode.
LOG: Displays logarithm (base 101 of the absolute value of the measured C"F
rent Iexamples: -3.000
= *ImA;
-6.301
= +O.$Al.
IEEE-488
BUS
IMPLEMENTATION
(Option
48631
MULTILINE
COMMANDS:
DCL, SDC, GET, GTL, "NT. UNL. SPE. SPD.
UNILINE
COMMANDS:
IFC, REN EO,. SRC. ATN.
INTERFACE
FUNCTIONS:
SHl.
AH,,
T5. TEO. L4, LEO. SRI,
RL2,
PPO. DCl, DTI, CO, El.
PROGRAMMABLE
PARAMETERS:
Zero Check. Range, REL. LOG, Trig-
ger, Calibration. EO,, SRO, Status. 0"tp"t
Format. Terminator.
GENERAL
DISPLAY:
4% digit LCD, 0.5" height: polarity. range and staf"s indication.
OVERRANGE
INDICATION:
"OL" displayed.
CONNECTORS:
Input:
ENC.
Analog
Output:
Banana Jacks.
OPERATING
ENVIRONMENT:
0-50.X. less than 70% R.H. up to 35'C:
linearly derate 3% R.H./OC up to 5OOC.
STORAGE
ENVIRONMENT:
-25O to +BO"C
POWER:
lOF,-125V or 210.250V
(switch
selected,.
go-llOV
available.
SO-6OHr. 12 VA.
DIMENSIONS,
WEIGHT:
65mm high Y 235mm wide x 275mm deep.
(3%"
x 9%"
x lO%",.
Net Weight:
1 .Skg I4 Ibs.)
ACCESSORIES
AVAILABLE:
Model 1010:
Model ,017:
Model 1664:
Mods, 1758:
Model 4801:
Model 4603:
Model 4653:
Model 7006-3:
Model 7006-6:
Model 6573:
Single Rack Mounting
Kit
Dual Rack Mounting
Kit
Hard Shell Carrying Case
Rechargesble Battery Pack
Low Noise Input Cable (4ft.l. BNC to ONC
Low Noise Cable Kit
IEEE-486 Interface
IEEE-466 Digital Cable 13ft.b
IEEE-468 Digital Cable 16 ft.1
IEEE-488 Interface for IBM PC
Specifications subject to change without notice.

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