WIKA WU-26 - Manual (Page 15)

15 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio, WU-2X
11553678.02 GB/D/F/E 10/2012
Specifications Models WU-20, WU-25 and WU-26
Response time (10 ... 90 %) ms ≤ 300
Insulation voltage VDC 500
Accuracy % of span ≤ 0.15 (≤ 0.4 with pressure ranges ≤ 2 bar) RSS (Root Sum Squares) according
to Semi # 3440 draft
≤ 0.3 (≤ 0.6 with pressure ranges ≤ 2 bar) BFSL
Non-linearity % of span ≤ 0.1 (≤ 0.15 for pressure ranges ≤ 2 bar) (BFSL) according to IEC 61298-2
Hysteresis % of span ≤ 0.14
Non-repeatability % of span ≤ 0.12
1-year stability % of span ≤ 0.25 typ. (at reference conditions)
Permissible temperature of non-Ex T4 T5 T6
■ Medium °C -20 ... +100 °C -20 ... +85 °C -20 ... +60 °C -20 ... +40 °C
■ Ambience °C -20 ... +85 °C -20 ... +85 °C -20 ... +60°C -20 ... +40 °C
■ Storage °C -40 ... +100 °C -40 ... +100 °C -40 ... +100 °C -40 ... +100 °C
■ Medium °F -4 ... +212 °F -4 ... +185 °F -4 ... +140 °F -4 ... +104 °F
■ Ambience °F -4 ... +185 °F -4 ... +185 °F -4 ... +140 °F -4 ... +104 °F
■ Storage °F -40 ... +212 °F -40 ... +212 °F -40 ... +212 °F -40 ... +212 °F
Rated temperature range -20 ... +80 °C / -4 ... +176 °F (active compensated)
Temperature coefficients within rated tempera-
ture range (active compensated)
■ Mean TC of zero % of span ≤ 0.1 / 10 K
■ Mean TC of range % of span ≤ 0.15 / 10 K
RoHS-conformity Yes (not with bayonet connector)
CE- conformitiy
■ Pressure equipment directive 97/23/EC
■ EMC directive 2004/108/EC, EN 61 326 Emission (Group 1, Class B) and Immunity (industrial
locations)
■ Directive ATEX of equipment intended for
use in potentially explosive atmospheres
94/9/EC (for transducer with Ex-marking)
Ex-protection ATEX Category ** ) 3G (for transducer with Ex-marking)
Ignition protection type II 3G Ex nA nL IIC T4/T5/T6 X (for transducer with Ex-marking)
**
) Read the operating conditions and safety-relevant data in the operating
instructions.
7. Starting, operation GB