Siemens 7ML19985AB01 instruction manual U0 = channel width B U1 = area h

RECTANGULAR AREA X VELOCITY, P3 = 13

‘U’ parameters required *	‘U’ parameters calculated **
U0 = channel width B	U1 = area (h)

*obtain from manufacturer’s specifications.

**calculated by OCM-3. May be viewed by accessing ‘U’ parameter.

Reference

ABSOLUTE CALCULATION, P4 = 0¤

For flows that can be calculated by the equation:

q = 1/1000 x B x h x V

where : q = flow rate in l/sec

B = channel width in cm h = head in cm

V = velocity in cm/sec

RATIOMETRIC CALCULATION, P4 = 1¤

For flows that can be calculated by the equation:

q = qcal x A/Acal x v/vcal

where : q = flow rate

qcal = flow rate at maximum head h = head

hcal = maximum head v = velocity

vcal = velocity at maximum head

¤Refer to Operation \ Flow Calculation.

7ML19985AB01 OCM III 82