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825P-850P DIGITAL PULSE OUTPUT METERS
Batteries
NOTE: Low battery icon will appear when batteries require
replacement. Meter still functions properly for several days after
the icon appears. Neither calibration, current total or totalizer
quantities will be lost when you replace batteries.
To Replace Batteries (refer to exploded view).
1. Unscrew meter cap (item 1, page 12). Use a strap type oil
filter wrench or large 5" jaw pipe wrench if needed.
2. Insert a flat-head screw driver into the top slot (see Figure
4) and gently pry up electronics module.
CAUTION
DO NOT get fluid or dirt in electronics area.
FIGURE 4
3. Remove old batteries and insert new batteries, making sure
battery polarity is correct, or meter damage could occur
(positive side facing up when installed).
4. As noted in Figure 5, reinstall O-ring on electronics module.
Align sensor receptacle in proper location. Press module
gently down into meter cover.
5. Thread on meter cap until hand tight. To check tightness,
there should be approximately 1/16" gap between cap and
ridge on outlet port. (See Figure 6).
NOTE: If cap is not
sufficiently tight, fluid can
enter the electronics and
cause permanent damage.
Repair
If any meter components are damaged, they should be replaced.
See meter kits drawing on page 12 for correct replacement part
information before ordering.
sotera.com
UPPER PRY SLOT
LOWER PRY SLOT
O-RING
FIGURE 5
1/16" GAP
APPROXIMATE GAP
WHEN TIGHT
FIGURE 6
INSTALLATION AND OPERATION MANUAL
Maintenance
CAUTION
Follow fluid manufacturer's recommended procedures
for handling and disposing of metered fluids.
Meter should be flushed between uses with water to prevent
chemicals from drying and plugging meter.
Thorough Cleaning (refer to exploded view)
If meter is plugged due to hardened chemical or debris, do the
following:
1. Drain all fluid from meter.
2. Unscrew meter cap (item 1, page 12). Use a strap type oil
filter wrench or large 5" jaw pipe wrench if necessary.
3. Insert a flat-head screwdriver in the lower slot (see Figure 7)
and turn to pry up meter cover (item 6).
4. The meter chamber (item 8, page 12) can now be removed.
5. Rinse all meter components with flushing fluid. DO NOT
submerge display assembly. Be careful not to get any fluid
or dirt in the electronics module. Permanent damage to
the electronics will occur.
6. Reassemble meter.
CALIBRATION NOTE: Over time, the chamber inside the meter will
wear, requiring the meter to be re-calibrated with water. When this
should be done depends on the amount and type of fluid dispensed.
In most crop protection fluid uses (less than 1000 gallons of a
clean fluid per year), the meter will remain accurate for many years
without recalibration. On the other hand, dispensing an abrasive
fluid may require more frequent recalibration.
The 825P / 850P meter is designed to be calibrated with clean
water for safe handling. See "Water Calibration" section in
Appendix B.
Storage
Store in a cool, dry place. Drain out all fluid that could freeze in
the meter.
LOWER PRY SLOT
FIGURE 7
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