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WIKA operating instructions pressure switch, model PSD-3x
EN
11430486.07 04/2015 EN/DE/FR/ES
3. Specifications
3.5 Accuracy data
Accuracy, analogue signal
≤ ±1.0 % of span
Including non-linearity, hysteresis, zero offset and end value deviation (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)
Accuracy, switching output
Switch point accuracy:
≤ ±1 % of span
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
Temperature coefficients in rated temperature range
Mean TC zero point:
≤ ±0.2 % of span/10 K (typical)
Mean TC span:
≤ ±0.1 % of span/10 K (typical)
3.6 Reference conditions
Temperature:
15 ... 25 °C (59 ... 77 °F)
Atmospheric pressure:
950 ... 1,050 mbar (13.78 ... 15.23 psi)
Humidity:
45 ... 75 % r. h.
Nominal position:
Process connection lower mount (LM)
Power supply:
DC 24 V
Load:
see output signals
