Application
Diaphragm pressure gauges with vertical diaphragm model
PsPK 63-2 have been developed for the application in chlorine
metering services.
The lower part of the diaphragm with the connection thread is
made of steel. The wetted parts are not enamelled. The diaphragm
is protected by a fine silver foil which is applicable for use under
vacuum. The case made of impact resistant polyamide with screw
ring protects the inner parts from all external harmful influences
(chloric gas).

Nominal Case Size (NCS)
63 mm (2 ½")

Accuracy (EN 837-3)
Class 2.5

Pressure Ranges (EN 837-3)
0-1 bar to 0-40 bar (0-15 psi to 0-600 psi)
also all corresponding standard vacuum and compound ranges;
preferably -1-0 bar, -1200-0 bar and 0-16 bar
(-15 - 0 psi, -18000 - 0 psi and 0 - 200 psi)

Maximum Load Limits
Steady load: full scale value
Dynamic load: 90 % of full scale value
Overload: 1.3 x full scale value

Temperature Resistance
Storage temperature: -40 °C to +70 °C ( -40 °F to 158 °F)
Ambient temperature: -20 °C to +60 °C ( -4 °F to 140 °F)
Medium temperature: +60 °C max (140 °F)

Reference Temperature
+20 °C (+68 °F)

Temperature Caused Error
If the operating temperatures of the measuring unit (resilient element
and movement) deviate from the reference temperature, additional
deviations of the indication could occur. In accordance with EN 837-3
these can be up to ± 0.8% of the span per 10 K.

Protection Type (EN 60529 / IEC 529)
IP 65

Process Connection
G ¼ B (¼" BSP) bottom connection steel
with orifice Ø 5 mm (0.20"),
or optionally centre back connection (rm)
connection and lower part of the diaphragm steel, black enamelled

Diaphragm
vertical, with fine silver foil (Ag-foil),
pressure ranges -1-0 bar and 0-1 bar (-15-0 psi and 0-15 psi)
Duratherm^®,
pressure ranges 0-1.6 bar to 0-40 bar (0-30 psi to 0-600 psi)
steel enamelled¹⁾

Sealing
O-Ring FPM (Viton^®)

Movement
Brass/German silver

¹⁾NiCrCo-alloy

  ^{Technical data}