Keithley 6105 Service manual
Model
6105
Resistivity Adapter
Instruction Manual
Contains Operating and Servicing Information
Publication Date: October 1972
Document Number: 31415
WARRANTY
Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 1 year from date of
shipment.
Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rcchargcablc baitcries,
diskettes, and documentation.
During the warranty period, we will, at our option, cithcr repair or replace any product that proves to be defective.
To exercise this warranty, write or call your local Keithley representative, or contact Keithley headquarters in Cleveland, Ohio. You will
bc given prompt assistance and rctum instructions. Send the product, transpot%~tion prepaid, to the indicated service facility. Repairs
will be made and the product returned, transportation prepaid. Repaired or replaced products are warranted for the balance of the origi“al warranty period, or at Icast 90 days.
LIMITATION OF WARRANTY
This warranty dots not apply to defects resulting from product modification without Keithley’s express written consent, or misuse of
any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, or
problems arising from normal weas or failure to follow instructions,
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVTDED HEREIN ARE
BUYER’S SOLE AND EXCLUSIVE REMEDIES.
NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND
SOFTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF
SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF REMOVAL
AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY
l-l. GENERAL.
SECTION 1. GENERAL INFORMATION
a. The Model 6105 Resistivity Adapter is a guarded
te*t fixture for measuring volume and surface resistivities af materials when used with a regulated power
supply and an eleccromecer. The complete sysc?m permits measurement of volume resistivicy from 10 c0
3 x 1019 ohm-cm and surface resiscivicy from lo3 co
5 x 1018 ohms, in accordance with procedures of cbe
American Society far Testing and Materials. The
Adapter can accommadace samples up co 4 inches in
diameter and 114 inch chick with excitation voltages
up to 1000 volt*.
b. The Model 6105 has been designed c0 minimize
measurement error.
form co the ASTM recommendations for measurement of
electrical resisrance of insulating materials. The
test sample is shielded co prevent stray pickup. The
guard ring circuit is arranged c" minimize ieakage
currents from the measuring circuit. Uniform pressure
is always applied over the measuring area, because the
cesc sample is held beween the spring-loaded, guarded
electrode and the ""e-pound cesc weight assembly. Due
co these cansideracions, measurement accuracy depends
primarily upon the accuracy of the voltage source and
the electrometer.
C. Recwmended inscrumencs for "se with the Model
6105 are the Keichley Model 240A Regulated High Voltage Supply and the Keichley Model 610C Multi-Range
Electrometer.
volcages up c" 1200 volts in calibrated one-volt steps.
Ifs oufput is accurate within 1%. The Model 61OC pro-
vides direct reading current ranges c" lo-l4 ampere
full scale.
ampere, and f4% of full scale beyond. Although the
Model 240A and the Model 610C are the reccmmended
instruments for "se with the Resistivity Adapter, the
Model 6105 is compatible vich.all Keithley high voltage
supplies and electrometers.
Its accuracy is fZ% of full scale f" 10-11
The electrode configurations con-
The Model 240A provides excicacion
SAMPLE SIZE: Maximum:
Minimum:
SAMPLE THICKNESS: l/l6 inch co 114 inch (0.159 cn
to 0.635 cm).
TEST VOLTAGE i&GE: 1 volt c" 1000 vales.
MAXIMUM TEST VOLTAGE:
""LUME
SURFACE RESISTI"ITI RANGES: lo3 cr, 10IS ohms.
CmNECTORS: Power: Teflon insulated uhf-type
"IMENSlONS: 6 inches wide x 4-l/2 inches deep x
NET WEIGHT: 3 pounds.
RESISTI"ITY RANGES: 1.5 x 102 to 1.5 x 1018
ohm-inches (lo3 co 101' ohm-cm).
Electrometer: BNC-type recepcac1e.
4 inches high.
FIGURE 1. MODEL 6105
4-inch diameter (10.2-a
diameter)
Z-l/Z-inch diameter (6.3-cm
diameter)
1000 "OlCS.
receptacle.
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