Capacitance pressure sensor

Pressure sensor Mainly Technical indicators Useful object liquid, gas or steam Measuring range see type spectrum table Positive-negative offset Maximum positive offset is 500%, Maximum negative offset is 600% Positive negative zero migration of DP √P is ±10% of flow range. AP type only has mass positive offset and is 500% Temperature scope Operating temperature of filling silicon oil measuring element -40 104°COperating temperature of filling inertia oil measuring element -18 71°CStorage temperature -51 121°CRelative humidity 1 100% Volume variables less than 0.16 cm3 Insensitivity zone None Stability don’t exceed the accuracy of the transmitter within 6 months Temperature influence at maximum measure(e.g. 0 40kPa) Zero error is ±0.5%55°C Total error (include span and zero error—the same below) is ±1%55°C Note DP3 for twice of above-mentioned influence, zero error of DR2 at the maximum measure (0 7.46 KPa) is ±1%28°C,total error is±1%28°Cof span For DP √P type transmitter is at high span, only considering total error of which value is±2.5%55°C At minimum range(e.g. range 4 0 6kPa) Zero error is ±3%55°C Total error is ±3.5%55°C Note DP3 for twice of above mentioned influence Static pressure influence static pressure influence for DP,DP √P,HP,DR see the following table DP√PHPDRMeasuring range codeMeasuring range codeMeasuring range code4,53,6,7,84,5,6,7,834,5,6,72Zero errorspan errorZero errorSpan errorZero errorSpan error≤±0.25%≤±0.5%≤±0.25%≤±0.5%≤±2.0%≤±0.25%≤±1.0%≤±0.75%Per 13.9MPaPer 6.9MPaPer 31MPaPer 6.9MPaPer 6.9MPa