WIKA WU-20 Mode D'emploi page 18

7. Starting, operation
Specifications
Response time (10 ... 90 %)
Insulation voltage
EN
Accuracy
Non-linearity
Hysteresis
Non-repeatability
1-year stability
Permissible temperature of
Medium
■
Ambient
■
Storage
■
Rated temperature range
Temperature coefficients within rated tempera-
ture range (actively compensated)
Mean TC of zero
■
Mean TC of span
■
RoHS-conformity
CE- conformitiy
Ex-protection
Ignition protection type
Ex-protection
Ignition protection type
18
Models WU-20, WU-25 and WU-26
ms ≤ 300
VDC 500
% of span ≤ 0.15 (≤ 0.4 with pressure ranges ≤ 2 bar) RSS (Root Sum Squares)
≤ 0.3 (≤ 0.6 with pressure ranges ≤ 2 bar) per IEC 61298-2
1) 1)
% of span ≤ 0.1 (≤ 0.15 for pressure ranges ≤ 2 bar) (BFSL) per IEC 61298-2
% of span ≤ 0.14
% of span ≤ 0.12
% of span ≤ 0.25 % (typ.), at reference conditions (≤ 0.4 % with measuring ranges
≤ 2 bar)
non-Ex
-20 ... +100 °C
-4 ... +212 °F
20 ... +85 °C
-4 ...+185 °F
-40 ... +100 °C
-40 ... +212 °F
-20 ... +80 °C / -4 ... +176 °F (actively compensated)
% of span ≤ 0.1 / 10 K
% of span
≤ 0.15 / 10 K
Yes
Pressure equipment directive
■
EMC directive
■
EN 61326-1 Emission (Group 1, Class B) and interference immunity
(industrial application)
ATEX directive of equipment intended for use in potentially explosive atmos-
pheres (for transducer with Ex-marking)
ATEX Category 3G (for transducer with Ex-marking)
II 3G Ex nA ic IIC T6/T5/T4 Gc X and II 3G Ex ec ic IIC T6/T5/T4 Gc X
IECEx
IECEx BVS 13.0070 X, Ex nA ic IIC T6/T5/T4 Gc and Ex ec ic IIC T6/T5/T4 Gc
T4 T5
-20 ... +85 °C -20 ... +60 °C
-4 ... +185 °F -4 ... +140 °F
-20 ... +85 °C -20 ... +60°C
-4 ... +185 °F -4 ... +140 °F
-20 ... +85 °C -20 ... +85 °C
-4 ... +185 °F -4 ... +185 °F
WIKA operating instructions, model WU-2x
T6
-20 ... +40 °C
-4 ... +104 °F
-20 ... +40 °C
-4 ... +104 °F
-20 ... +85 °C
-4 ... +185 °F