AbsoIute Pressure Gauges Compact Design With Capsule Element • Model 516.11 With Bourdon Tube • Model 516.12
Service intended Measurement of absolute pressure excluding the effect of barometric pressure variation. Suitable for all clean and dry gaseous media that will not attack copper alloy and aluminium parts.
Design Small compact design, varied possibility for installation, WIKA trade pattern DT-GM 87 10 226 Variable pressure entry
Nominal size 80 mm
Accuracy class per EN 837-3 /6 1.6
Scale ranges per EN 837-3 /5 Model 516.11: 0 ... 16 to 0 ... 1000 mbar absolute pressure Model 516.12: 0 ... 1.6 to 0 ... 16 bar absolute pressure.
Working pressure Steady: full scale value Fluctuating: 0.9 x full scale value
Overpressure safety Model 516.11: 1 bar absolute (atmospheric pressure) with all scale ranges Model 516.12: full scale value
Operating temperature Ambient: -20 ... +60 °C Medium: +70 °C maximum
Temperature error Additional error when temperature of the pressure element deviates from +20 °C Rising temperature: +0.3%/10 K of true scale value Falling temperature: -0.3%/10 K of true scale value
Degree of protection IP 66 per EN 60 529 / IEC 529
Standard features Pressure connection (exposed to pressure medium) Threaded entry per EN 837-1 /7.3 G E female
Pressure element (exposed to pressure medium) Model 516.11: Material Cu-alloy Model 516.12: Material stainless steel The pressure element is evacuated and constitutes pressure datum
Movement (exposed to pressure medium) Material: Cu-alloy
Dial (exposed to pressure medium) White aluminium with black lettering
Pointer (exposed to pressure medium) Black aluminium pointer
Zero adjustment Adjusting provisions at case back (model 516.11)
Case (exposed to pressure medium) Black aluminium. Case retains process pressure
Window (exposed to pressure medium) Instrument glass
Sealing rings (exposed to pressure medium) NBR (Buna rubber)
Bezel ring Black aluminium
Gauge mounting Requires mounting by means of rigid tailpipes, optionally threaded studs at case back. Panel mounting or surface mounting rings optionally available
Optional extras Other pressure connection Mounting studs with bracket Panel mounting ring Surface mounting ring Male thread pressure entry Pressure entry with miniature flange DN 10/16 to DIN 28 403 Radial pressure entry other than bottom
Operating principle - The case machined from solid aluminium bar retaines the system pressure, whereas the pressure element of either the capsule or the bourdon tube type constitutes the zero pressure datum. - The particularly shaped capsule fully collapses to provide over-pressure safety independent of the scale range. - Any pressure applied is measured against the sealed pres sure datum to exclude the effect of ambient pressure variation.
Dimensions Standard version
Ordering information State: Model / Nominal size / Scale range / Size and location of connection / Optional extras required