Burkert Type 8644 - Manual (Page 108)

104 - 8644/phoenix
S
YSTEM
D
ESCRIPTION
ELECTRONIC PRESSURE MEASUREMENT MODULE (PMM)
Electronic pressure measurement module (PMM)
The electronic pressure measurement module (PMM)
is connected to the adjacent modules by an electrical
interface and communicates via the field bus.
The pressure value is shown on the 7-segment
display. At the same time, this value can be called up
in the overriding control system.
The module requires two input data bytes. The first
data byte is used as a status byte, the second for the
actual pressure value.
Features
Measurement units, selectable bar, kPa 1) , psi
Pressure range, absolute –1 to 10 bar
Media clean, dry air, non-corrosive gases
Module configuration via field bus (pressure unit, thereshold value, degree of smoothing,
reaction time)
Warning message when pressure too high or too low
Visualization on local display
General description
1) As a result of the 3-digit display, the display ranges from -90 kPa to 990 kPa (corresponding to -0.9 to 9.9 bar) on the kPa setting.
Factory settings (as delivered)
Pressure unit bar (0x00)
Threshold values
- minimum value 2 bar / 200 kPa (0x14)
- maximum value 8 bar / 800 kPa (0x50)
Sensitivity 20 (0x14)
Reaction time 3 s (0x65)