BS 4671(1987) : AMD 7870
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
METHODS FOR EVALUATING THE PERFORMANCE OF ELECTRICAL AND PNEUMATIC ANALOGUE CHART RECORDERS FOR USE IN INDUSTRIAL PROCESS CONTROL SYSTEMS
15-07-1993
23-11-2012
Describes methods for determining the performance of electrical and pneumatic analogue chart recorders from a standard signal used in process control. Covers object, definitions, general testing procedures, environmental test conditions, supply conditions during tests, other conditions, static behaviour, effect of influence quantities, stability, recording quality, effect of open-circuited and short-circuited input, dynamic behaviour, summary of tests, sample calculations, power supply transient, over voltages, common mode interference, frequency response test results, deviation curves and hysteresis. BS AMD 7870 RENUMBERS THIS STANDARD TO BS EN 60873
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