Section 8
OM6530-C1-00
19 November, 2019
8-14
Pressure Offset (as configured - 0 to 60°C)
V S = 5.0 Volts
V off
0.088
Vdc
Full Scale Output (as configured - 0 to 60°C)
V S = 5.0 Volts
V FSO
4.587
Vdc
Full Scale Span (as configured - 0 to 60°C)
V S = 5.0 Volts
V FSS
4.500
Vdc
Accuracy
±2.5 %
V FSS
8.9.2.
Surface/Volume Resistivity Test Fixture Model 65221
This optional accessory allows the 6530 user to make direct measurement of volume
resistivity up to 10
18
−
cm (on samples 1 mm thick) and surface resistivity up to
10
17
/square, in accordance with ASTM procedures. A Keithley model 8009 test fixture
is supplied with all the necessary interconnect cables for the 6530. A simple series of
keystrokes on the 6530 front panel controls, starts the measurement process.
Resistivity Fixture Device Data
Operating Temperature: –30 °C to + 85 °C,
Operating Humidity: 65% R.H. (up to 35°C, derate 3% R.H./°C above 35°C. )
Storage Temperature: –25 °C to + 85 °C.
Dimensions: 108mm high × 165mm wide × 140mm deep (41⁄4in × 61⁄2 in × 51⁄2 in).
Weight: 1.45kg (3.19 lbs).
8.9.3.
Calibration Resistors
Precision resistors are available (see Table 8-5) for calibrating the 6530. Each is supplied
in a shielded enclosure with two male type N connectors spaced to allow connection to
the 6530. To meet the accuracy of the specification in Table 8-2 and Table 8-3, a
precision 100 MΩ resistor is recommended for calibration of error coefficients.
Other Calibration Resistors are available in ascending decades from 100 GΩ to 100 TΩ
as well as special values on request. These precision resistors are typically used as check
standards or transfer standards.
