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HATS-Y
Series HIGH RESISTANCE
TRANSFER STANDARD
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HATS-Y Series High Resistance Transfer
Standard |
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HATS-Y High
Resistance Decade Transfer Standard.
In order to perform calibrations with a high degree of
accuracy, reference standards must be employed at every range or
decade of the measuring or calibration instrumentation.
Clearly, this
can be difficult and costly since these standards must be highly
stable and their precise values must be known with a high degree of
certainty and sufficient resolution.
To minimize the cost and difficulty, more practical means of
performing such calibrations is to use transfer standards.
If one has a single standard that is calibrated by a national
laboratory, one can then compare the transfer standards to the
certified standard by ratio techniques.
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The HATS-LR Series
of transfer standards consist of 11 matched resistors, of value R,
which may be connected in series or parallel combinations to produce
any number of values such as R/10, R, and 10R, all with the same
known deviation, thereby allowing progressive transfers to higher
and lower decades.
For example, the 1 M transfer standard may be
used to transfer calibrations across 100 k, 1 M and
10 M.
The HATS-LR Series of transfer standards may be used
for resistances 100 k and under.
These transfer standards may also be employed as very precise and
stable voltage dividers.
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Resistor Type: Wirewound,
hermetically sealed, low inductance.
Step Size: 100 k, 1 M, or 10 M.
Accuracy:
Initial:
100 kOhm ±10
ppm
1
MOhm ±15 ppm
10 MOhm
±20 ppm
Long Term: <±20 ppm for 1 year; <±30 ppm for 2 years;
Transfer : <±2 ppm.
Matching:
Accuracy: within 10 ppm
Temperature Coefficient: within 5 ppm/°C.
Temperature Coefficient : <±5 ppm/°C.
Calibration Accuracy: ±10 ppm or better for all steps;
Calibration Conditions: 23°C, with meter guard applied to COM
and ground applied to G, at low power, traceable to NIST.
Initial calibration data supplied with instrument.
Leakage Resistance: >10 T from terminal to case.
Power Coefficient: <±0.05 ppm/mW per resistor.
Maximum Applied Input: 2500 V, or 1 W per resistor, or 5 W
for entire unit, whichever limit applies first. 3500 V peak, between
any terminal and case.
Dimensions: 43.2 cm W x 14.2 cm H x 13.5 cm D (17" x
5.6" x 5.3").
Weight: 3.6 kg (8 lb.).
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HATS-Y-100K 100
kOhm/Step Transfer Standard
HATS-Y-1M 1 MOhm/Step Transfer Standard
HATS-Y-10M 10 MOhm/Step Transfer Standard
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