WIKA WU-20 Manual De Instrucciones página 8

7. Starting, operation
Specifications Models WU-20, WU-25 and WU-26
Signal output and R in Ohm
A
maximum ohmic load R
A
Power Pi W
Adjustability zero % of span
% of span
Response time (10 ... 90 %) ms
Insulation voltage VDC
Accuracy % of span
% of span
Non-linearity % of span
Hysteresis % of span
Non-repeatability % of span
1-year stability % of span
Permissible temperature of
„ Medium °C
„ Ambience °C
Storage °C
„
Medium °F
„
„ Ambience °F
„ Storage °F
Rated temperature range
Temperature coefficients within
rated temperature range
(active compensated)
„ Mean TC of zero % of span
14 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio WU-2X
4 ... 20 mA, 2-wire RA ≤ (U+ – 10 V) / 0.02 A
0 ... 5 V, 3-wire R > 5 k
A
> 10 k
0 ... 10 V, 3-wire R
A
1
-3.5 up to +3.5 (via potentiometer) Current output signal
-2 up to +3.5 (via potentiometer) Voltage output signal
≤ 300
500
≤ 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
≤ 0.1
(≤ 0.15 for pressure ranges ≤ 2 bar)
(BFSL) according to IEC 61298-2
≤ 0.14
≤ 0.12
≤ 0.25 typ. (at reference conditions)
non-Ex T4 T5
-20 ... +100 °C -20 ... +85 °C -20 ... +50 °C -20 ... +34 °C
-20 ... +85 °C -20 ... +85 °C -20 ... +50 °C -20 ... +34 °C
-40 ... +100 °C -40 ... +100 °C -40 ... +100
-4 ... +212 °F -4 ... +185 °F -4 ... +122 °F -4 ... +93 °F
-4 ... +185 °F -4 ... +185 °F -4 ... +122 °F -4 ... +93 °F
-40 ... +212 °F -40 ... +212 °F -40 ... +212
-20 ... +80 °C / -4 ... +176 °F (active compensated)
≤ 0.1 / 10 K
GB
7. Starting, operation
Specifications
„ Mean TC of range
RoHS-conformity
CE- conformitiy
Pressure equipment directive
„ EMC directive
Directive ATEX of equipment
„
intended for use in potentially
explosive atmospheres
Ex-protection
Ignition protection type
Assembly and packing area
Packaging
Shock resistance
Vibration resistance
Wiring protection
T6
Short-circuit proofness
„
Reverse polarity protection
„
Weight
-40 ... +100
When designing your plant, take into account that the stated values (e.g.burst pressure,
over pressure safety) apply depending on the material, thread and sealing element used.
Functional test
-40 ... +212
The output signal must be proportional to the pressure. If not, this might point to a
damage of the diaphragm. In that case refer to chapter 10 „Troubleshooting".
WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio WU-2X
Models WU-20, WU-25 and WU-26
% of span ≤ 0.15 / 10 K
Yes (not with bayonet connector)
97/23/EC
2004/108/EC, EN 61 326 Emission (Group 1, Class B) and Immunity
(industrial locations)
94/9/EC (for transducer with Ex-marking)
ATEX Category ** 3G (for transducer with Ex-marking)
)
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.
Clean room class 5 according to ISO 14644
Double bagging according to SEMI E49.6
g 500 (1.5 ms) according to IEC 60068-2-27
0.35 mm (10 - 58 Hz) / 5 g (58.1 - 2000 Hz)
mm
according to IEC 60068-2-6
S+ towards U-
U+ towards U-
kg Approx. 0.1
GB
15