9. Specifications
Specifications
Measuring ranges ≥ 10 bar [150 psi]
Pressure transmission medium
For all gauge pressure measuring ranges
< 10 bar [150 psi] 1), all absolute pressure
measuring ranges and G ½ flush
With G 1 hygienic and TRI-CLAMP
process connections
Surface roughness of wetted parts
Options for specific media
Oil- and grease-free
Oxygen, oil- and grease-free
Medium temperature limit
Process connections with pressure port and
G ½ B flush
Process connection G 1 hygienic
Process connections TRI-CLAMP
Ambient temperature limit
Storage temperature limit
Service life
Switching cycles
Load cycle (mechanical)
2)
1) The overpressure limit is based on the sensor element used. Depending on the selected process connection and seal, restrictions in overpressure limit can result.
2) Not valid for G 1 hygienic and TRI-CLAMP
WIKA operating instructions pressure switch, model PSD-4
Stainless steel 316L, PH grade steel
Stainless steel 1.4435/316L with G 1 hygienic and TRI-CLAMP
process connections
Synthetic oil
®
1 ½" and 2"
KN92 medicinal white mineral oil, FDA-compliant per CFR 172.878 and 21 CFR
178.3620(a); conform to USP, EP and JP
Process connection G 1 hygienic
Process connection TRI-CLAMP
1 ½" and 2"
Residual hydrocarbon
Residual hydrocarbon
Max. permissible temperature
-20 ... +85 °C [-4 ... +185 °F]
-20 ... +100 °C [-4 ... +212 °F] (+135 °C [+275 °F] max. 1h)
■
-20 ... +125 °C [-4 ... +257 °F] (+150 °C [+302 °F] max. 1h) (option)
■
1 ½" and 2"
-20 ... +100 °C [-4 ... +212 °F] (+135 °C [+275 °F] max. 1h)
®
-20 ... +80 °C [-4 ... +176 °F]
-20 ... +70 °C [-4 ... +158 °F]
100 million
100 million or 10 million for measuring ranges > 600 bar/7,500 psi
1 ½" and 2"
®
Ra ≤ 0.8 µm (except for weld seam)
®
Ra ≤ 0.76 μm per ASME BPE SF3
(except for weld seam)
< 1,000 mg/m²
< 200 mg/m²
-20 ... +60 °C [-4 ... +140 °F]
1 ½" and 2"
®
EN
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