Environmental Requirements; Temperature-What To Watch Out For - Keysight Technologies 85059B Operating And Service Manual

Specifications

Environmental Requirements

Environmental Requirements
Table 2-1 Environmental Requirements
Parameter
a
Operating temperature
Error-corrected temperature range
Storage temperature
a. The temperature range over which the calibration standards maintain conformance to their specifica-
tions.
b. The allowable network analyzer ambient temperature drift during measurement calibration and during
measurements when the network analyzer error correction is turned on. Also, the range over which the
network analyzer maintains its specified performance while correction is turned on.
Temperature—What to Watch Out For
Changes in temperature can affect electrical characteristics. Therefore, the
operating temperature is a critical factor in performance. During a
measurement calibration, the temperature of the calibration devices must be
stable and within the range specified in
IMPORTANT! Avoid unnecessary handling of the devices during calibration
because your fingers are a heat source.
Performance verification and measurements of devices under test need not be
performed within the operating temperature range of the calibration devices,
but they must be within the error-corrected temperature of the network
analyzer (±1 °C of the measurement calibration temperature). For example, if
the calibration is performed at +20 °C, the error-corrected temperature range
is +19 °C to +21 °C. It is then appropriate to perform measurements and
performance verifications at +19 °C, which is outside the operating
temperature range of the calibration devices, since only the actual calibration
must be performed within the operating temperature range.
2-2
Limits
+20 °C to +26 °C (+68 °F to +79 °F)
±1 °C of measurement calibration temperature
b
−40 °C to +75 °C (−40 °F to +167 °F)
Table 2-1.
Keysight 85059B Operation and Service Guide