Technical Specifications

Masoneilan Valves ValVue ESD Instruction Manual =| 245
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Dwell Time
The Dwell Time is the amount of time in seconds between ramp down and ramp up of valve
stroke; similar to a threshold state. When performing a PST you want the dwell time range to
be between 2 and 60 seconds. If you configure the Dwell Time parameter outside this range
an error message appears (Figure 257).
Figure 257 Dwell Time Error Message
Friction Low Limit
Friction Low Limit is the minimum amount of pressure provided during the PST to overcome
valve packing friction. Configure this parameter in pressure units in a range between 0.0 to
30.0 psi (0.0 to 207 kPa, 0.000 to 2.069 bar). If you configure a value outside the specified
range an error message appears (Figure 258).
Figure 258 Friction Low Limit Error Message
Friction High Limit
Friction High Limit is the maximum amount of pressure provided during the PST to overcome
valve packing friction. Configure this parameter in pressure units in a range between 0.0 to
30.0 psi (0.0 to 207 kPa, 0.000 to 2.069 bar). If you configure a value outside the specified
range an error message appears (Figure 259).
Figure 259 Friction High Limit Error Message