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9. Specifications
Specifications
Reference conditions (per IEC 61298-1)
Ambient temperature
Atmospheric pressure
Humidity
Power supply
Mounting position
Operating conditions
Permissible temperature ranges
Vibration resistance
Shock resistance
Service life, mechanics
Ingress protection
Mounting position
Pollution degree
Humidity
UV irradiation
WIKA operating instructions pressure switch, model PSD-4
15 ... 25 °C (59 ... 77 °F)
860 ... 1,060 mbar (12.5 ... 15.4 psi)
45 ... 75 % r. h.
DC 24 V
Calibrated in vertical mounting position with process connection facing downwards.
Medium: -20 ... +85 °C (-4 ... +185 °F)
Ambient: -20 ... +80 °C (-4 ... +176 °F)
Storage: -20 ... +70 °C (-4 ... +158 °F)
Nominal temperature: 0 ... 80 °C (32 ... 176 °F)
20 g, 10 ... 2,000 Hz (IEC 60068-2-6, under resonance)
50 g, 6 ms (IEC 60068-2-27, mechanical)
100 million load cycles (10 million load cycles for measuring ranges > 600 bar/7,500 psi)
IP65 and IP67
The stated ingress protection (per IEC 60529) only applies when plugged in using mating
connectors that have the appropriate ingress protection.
as required
max. 3
≤ 45 ... 75 % r. h.
With a high ambient temperature and a high UV irradiation, the pressure switch must be
installed with additional covering in order to avoid damage to the digital indicator and buttons.
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