Dover Hydro HydroMinder, Руководство пользователя

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installation / maintenance
1. Mount the unit in a level position on the side of a reservoir. The U-clamp may be repositioned or removed as necessary.
2. Install a minimum 3/8” ID water hose between the inlet threads and the water spigot. Minimum water pressure required
to properly operate the proportioner is 20 PSI dynamic.
3. Attach the end of the discharge tube with the clamp and flooding ring to the discharge barb on the eductor.
4. Insert the foot valve end of the suction tube into the concentrate container. (The level of the concentrate must be below
the level of the eductor, or the proportioner will continue to siphon concentrate after it is turned “off”.)
REMEMBER TO CHECK FOOT STRAINERS PERIODICALLY FOR CLOGGING: CLEAN IF NECESSARY
5. Select a push-in metering tip or ULD. Install push-in metering tip it into the suction stub on the eductor body.
Install ULD into inlet of eductor body.
6. Slide the open end of the suction tube over the suction stub.
7. Adjust the bead chain length to position the float at the desired level of solution. To prevent foaming, be certain that the
solution level will always be above the point of discharge. Be sure float mechanism is not hampered by water turbulence
caused by discharging solution. It may be necessary to baffle the float from the discharge in order for the unit to work
properly.
Page 3
operation
1. Connect opposite end of water inlet hose to water supply. Turn on water supply.
2. Prime the system by activating the water valve by pulling down on the yoke.
NOTE: In order to fully prime a ULD system, continue activating the water valve for 30 seconds after chemical has reached the ULD inlet.
There may be some water discharge from the eductor vents until the air is purged.
tip/uld chart
Metering Tip Selection:
The final concentration of the dispensed solution is related to both the size of the
metering tip opening and the viscosity of the liquid being siphoned. For water-thin
products, the chart at right can be used as a guideline. If product is noticeably
thicker than water, consult the Measurement of Concentration Procedure below to
achieve your desired water-to-product ratio. Because dilution can vary with water
temperature and pressure, actual dilution achieved can only be ascertained by using
the Measurement of Concentration Procedure. The clear, undrilled tip is provided
to permit drilling to size not listed should you need a dilution ratio that falls between
standard tip sizes.
NOTE: A 5 GPM eductor is blue. Refer to parts diagram if unfamiliar with names of
system components.
Measurement of Concentration:
You can determine the dispensed water-to-product ratio for any metering tip size
and product viscosity. All that is required is to operate the primed dispenser for a
minute or so and note two things: the amount of dispensed solution, and the amount
of concentrate used in preparation of the solution dispensed. The water-to-product
ratio is then calculated as follows:
Dilution Ratio (X:1) where X = Amount of Mixed Solution — Amount Concentrate Drawn
Amount of Concentrate Drawn
Dilution Ratio, then, equals X parts water to one part concentrate (X:1). If the test
does not yield the desired ratio, choose a different tip and repeat the test. Alternative
methods to this test are 1) pH (using litmus paper), and 2) titration. Contact your
concentrate supplier for further information on these alternative methods and the
materials required to perform them.
APPROXIMATE DILUTIONS
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Tip/ULD
Color
Tip or ULD Ratio (per Eductor Flow)
5 GPM
Grey Tip 7:1
Black Tip 8:1
Beige Tip 12:1
Red Tip 18:1
White Tip 30:1
Blue Tip 33:1
Tan Tip 45:1
Green Tip 55:1
Orange Tip 85:1
Brown Tip 110:1
Yellow Tip 155:1
Aqua Tip 175:1
Purple Tip 260:1
Pink Tip 550:1
Red One ULD 300:1
Dark Blue One ULD 400:1
White Two ULD 500:1
Light Blue One ULD 550:1
Orange One ULD 600:1
Yellow One ULD 800:1
Purple One ULD 900:1
Pink One ULD 1000:1
Dark Green One ULD 1100:1
Yellow Two ULD 1200:1
Purple Two ULD 1500:1
Light Blue Five ULD 1800:1
Yellow Four ULD 1900:1
Purple Four ULD 2400:1
Purple Five ULD 2500:1