Reference Conditions - WIKA PSD-30 Mode D'emploi

3. Specifications
3.5 Accuracy data
Accuracy, analogue signal
EN
≤ ±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:
Adjustment accuracy:
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:

3.6 Reference conditions

Temperature:
Atmospheric pressure: 950 ... 1,050 mbar (13.78 ... 15.23 psi)
Humidity:
Nominal position:
Power supply:
Load:
12
≤ ±1 % of span
≤ ±0.5 % of span
≤ ±0.1 % of span/10 K (typical)
15 ... 25 °C (59 ... 77 °F)
45 ... 75 % r. h.
Process connection lower mount (LM)
DC 24 V
see output signals
WIKA operating instructions pressure switch, model PSD-3x