PROGRAMMING
OCM
P600 PMD = 1 (preset, change to applicable PMD)
P601 Flow Exponent = 2.50 (preset, change per PMD used, P600 = 1 only)
P602 Flume Dimension D = 1 (preset, change per PMD used, P600 = 2 or 3)
P603 Max Head = Span (preset, change to actual head at Max Flow)
P604 Max Flow = 1000 (preset, change to flow at Max Head)
P605 Zero Head = 0.000 (preset, change to zero head distance above Empty)
P606 Time Units = 1 (preset, time portion of Max Flow)
P607 Flow Decimal = 3 (e.g. display value to 3 decimal places)
P610 Head Breakpoints = ---- (change to known flow heads; 32 max, P600 = 4 or 5)
P611 Breakpoint Flowrates = ---- (change to flow at P610 heads; P600 = 4 or 5)
P620 Low Flow Cutoff = 5% (preset, below this head, flow is not totalized
LCD TOTALIZER
P630 LCD Total Factor = 0 (preset, display in 1 x 10
0
Max Flow volume units)
P633 LCD Total Decimal = 3 (e.g. display value to 3 decimal places)
REMOTE TOTALIZER (optional)
P111 Relay Function = 40 (totalizer) for RL5
P640 Relay Total Factor = 0 (preset, pulse every 1 x 10
0
(P604) volume units)
P645 Relay On Time = 0.2 seconds (preset, adjust if necessary to suit totalizer)
OPERATION
1. Alarms and/or controls operate as programmed by other Application examples.
2. The totalizer relay energizes for (P645) seconds for every (P640) units.
3. The 4-20 mA output is proportional to flow.
4. to display 8 digit total flow volume.
5. to display head.
6. to display flowrate.
To monitor the overflow (through a weir) from a wet well, program the HYDRO+ as
indicated above, except program Empty (P006) and relays as illustrated in the Wet
Well Control application example.
To monitor flow downstream from a Penstock, program the HYDRO+ as
indicated above, except program relays as illustrated in the Penstock Control
application example.
APPLICATIONS
PL-507 53
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