HP 34970A manual BdR u, LYR u

Chapter 9 Specifications

Interpreting Internal DMM Specifications

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o 9=4 ””” ”Vhh’s relative accuracy over its full measurement range for short time intervals and within a stable environment. Short-term accuracy is usually specified for a 24-hour period and for a ±1 °C temperature range.

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These long-term accuracy specifications are valid for a 23 °C ± 5 °C temperature range. These specifications include the initial calibration errors plus the internal Vhh’s long-term drift errors.

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Accuracy is usually specified for a 23 °C ± 5 °C temperature range. This is a common temperature range for many operating environments. You must add additional temperature coefficient errors to the accuracy specification if you are operating the internal Vhh outside a 23 °C ± 5 °C temperature range (the specification is per °C).

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