WIKA PSD-31 - Manual (Page 11)

11 WIKA operating instructions pressure switch model PSD-3x
GB
11430486.06 02/2012 GB/D/F/E
3. Specifications
3.4 Voltage supply
Power supply
DC 15 ... 35 V
The power supply for the pressure switch must be made via an energy-limited electrical circuit in accordance with section 9.3 of UL/EN/
IEC 61010-1 or an LPS to UL/EN/IEC 60950-1 or class 2 in accordance with UL1310/UL1585 (NEC or CEC). The power supply must be
suitable for operation above 2,000 m should the pressure switch be used at this altitude.
Current consumption
maximum 100 mA
Total current consumption
■ without IO-Link: maximum 600 mA including switching current
■ with IO-Link: maximum 500 mA including switching current
3.5 Accuracy
Analogue signal
≤ ± 1.0 % of span
Including non-linearity, hysteresis, zero-point and full scale deviations (corresponds to measured error per IEC 61298-2). Calibrated in
vertical mounting position with process connection facing downwards.
Non-linearity: ≤ ±0.5 % of span (BFSL, IEC 61298-2)
Long-term drift: ≤ ±0.2 % of span (IEC 61298-2)
Switching output
Adjustment accuracy: ≤ ±0.5 % of span
Display
≤ ±1.0 % of span ± 1 digit
Temperature error in rated temperature range
■ typical: ≤ ±1.0 % of span
■ maximum: ≤ ±2.5 % of span