Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley 262 262RevA_DocSpec
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SPECIFICATIONS
MCOEL 262 LOU THERMAL VOLTAGE Olv10fR
Tenperature
Divider ACCW+ZY' Coefficient Output Noise Them1
m 1 Yr. 22'-2VC WC - 2vc (O.lHr BW) Drift'"
102:l ?35Ppn 2PWY 1onvpp 1onv
103:l +_35Ppn Zwm/ OC 1onvpp 1onv
104:l +_lOOPpn lOPwl/Y IMP 3N
105:l *1OOPpn lorlPm/"c InvPP 3ltV
l Referenced to output teneinels.
"'For ambient temperawe changes of i I'C/Hr. Includes effects of supplied cable.
INPUT RESISTANCE! 20kn for divider ratios of 102.1 end 104.1
200kn for divider ratios of lOj:l end 105:l
OUTPUT RESISTANCE: 2R for divider ratios of 104:l and 105:I
2OOfl for divider ratios fo IO&l and 103:1
ovERLoAo PROTECTI(x(: Ydxilluw operating toput voltage fs zov. Input Is
protected against IOOOV overloads from calibrators with
fwrent llnits up to 150n4.
CONTROLS: Polarity. divider retlo
CONNECTORS: Input: Five WY binding
ground.
ports for fnput. sense, and cese
c
Output: Special low thermal female connector. Mates ,,,th node15
1506. 1507. 1481 and 1482.
ENVlROt44ENTAL LIMITS: OptratIng: WC to 28'C. up to 60% RH
storage: -25'C to 65Y
DIMENSIONS, YEI,GHT: 114 ren high X 165am wide x l8h deep (4-l/2 fn. x
6-l/2 in. x 7-l/4 in). Net weight 2kg (4-l/2 Ibs.).
ACCESSORIES SUPPLIED: Lo* theneel wale to @ale cable (3 ft.) for connecting to
Models 148 and 181.
ACCESSORIES AVAILABLE: Wade1 1481 La Thea1 Twin Leed Shielded Input Cable
(4 ft. with clips).
Mode1 1482 La Theneel Twin Lead Shielded Input Cable
(IO ft. with here copper lards).
we1 1483 LOW TheriM Connection Kit
node1 1484 Refill Kit for 1483 Kit
Model 1485 Fenale Law Theneal Input Connector
Model 1486 Male La nlenaal Input connector
HDdel 1503 LOW Theneil Solder and Flux
node1 1506 Low Them1 Trlax Input Cable (4 ft. with clips).
llodel 1507 LRI Theneel Triax Input Ceble (4 ft. with lugs).
TR REVISIONS APP.IDATEIDRN I. WZ DATE6-/6
I~-
Keith*y Instruments Inc.
& 8476. (~EL~+XED Gi 16-/7+3~ I. R.B. DATE64
CKO Cleveland. Ohio 44139
I .-1
I I
iddenda
Output Noise: Source noise ia measured over a 30 second interval. Use
&
2
supplied
of the
cable
262 using
when making
the Model
measurements.
148 (which has
When measuring
1nV p-p noise
noise
spec),
L
the total noise will not exceed 1.4nV p-p for 98.76% of the
time.
henna1 Drift: `Ibermal drift is measured with the 262's polarity switch set to
zero. Specifications apply to the Model 262 and supplied cable
only. Thermal drift is a function of the rate of change of
ambient temperature. Using a two channel chart recorder,
monitor the rate of change of ambient temperature versus drift
due to thermal EMFs. See example below:
At = t&-t, = 0.5hr.
A-
/5nV A" I*:' = 15 nV
T
AT 1;:' = 2.5""
A-
2.5"C
-f
rRI REVISIONS I APP. 1DATEJORN. w2
i ls47L. I
&LERS&D a ki-17-8ElI!Kn
- "..I. P.R
.-.- Keithley Inqwmsnts Inc.
Cleveland, Ohio 44139
- APP. ~73 DATE
PART NUMBER
SPECIFICATIONS SPEC-262
I
262 Product Proposal
JDS/bb
May 26, 1982
APPENDIX B - Page 1 of 2
SPECIFICATIONS
MODEL 262 LOW THERMAL VOLTAGE DIVIDER
Temperature
Divider Accuracy* Coefficient Output Noise Thermal
Ratio 1 yr. 22"-24◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo