WIKA S-20 Manual De Instrucciones página 9

3. Specifications
3. Specifications
Specifications
Measuring range
Vacuum tightness
Reference conditions
Temperature
■
Atmospheric pressure
■
Humidity
■
Power supply
■
Mounting position
■
Output signal
Permissible load in Ω
Current output
■
With optional settling time of 1 ms
■
Voltage output
■
Ratiometric output
■
Switch-on time
Switch-on drift
Voltage supply
Dissipation loss
Current output
■
Voltage output
■
Current supply
Current output
■
Voltage output
■
Non-linearity (per IEC 61298-2)
Relationship to the mounting position
Non-repeatability
WIKA operating instructions pressure transmitter, model S-20
See product label or test report
Yes
Per IEC 61298-1
15 ... 25 °C (59 ... 77 °F)
860 ... 1,060 mbar (12.5 ... 15.4 psi)
45 ... 75 % r. h.
DC 24 V, DC 5 V with ratiometric output
Calibrated in vertical mounting position with pressure connection facing downwards.
See product label or test report
≤ (power supply - 7.5 V) / 0.023 A
≤ (power supply - 11.5 V) / 0.023 A
> maximum output voltage / 1 mA
> 4.5k
150 ms
5 s (60 s with optional zero point adjustment 0.1 %)
See product label or test report
828 mW (22 mW/K derating of the dissipation loss with ambient temperatures ≥ 100 °C (212
°F))
432 mW
External circuits connected to the electrical outputs of the pressure transmitter must be
energy-limited electrical circuits in accordance with section 9.4 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).
External circuits must be suitable for operation above 2,000 m should the pressure transmit-
ter be used at this altitude.
Current signal, max. 25 mA
Max. 12 mA
See test report
For measuring ranges < 1 bar (15 psi), an additional zero offset of up to 0.15 % applies
≤ ±0.1 % of span
EN
9