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INSTALLATION AND OPERATION MANUAL
| 900 MECHANICAL METER
Operating Instructions
For accurate measurement and to prevent meter damage, meter and piping must always be lled with liquid and
free of air. Meter should be calibrated per instructions in this manual prior to its use.
1. Stop ow of liquid.
2. Reset register to “0”.
3. Meter is ready for use. Start ow of liquid. Do not exceed 50 PSI of line pressure.
Maintenance
Your Fill-Rite 900 Series Meter should operate virtually maintenance free. Certain liquids, however, can dry out while in
the meter housing, causing the meter to stop or perform poorly. If this happens, meter should be thoroughly cleaned.
Cleaning Instructions
Run a ushing uid through the meter. For a more thorough cleaning, disassemble the meter per “ASSEMBLY /
DISASSEMBLY” section, “Meter Chamber Assembly” subsection. Rinse all meter components thoroughly.
Recalibrate meter following calibration instructions above.
Storage
If your meter is to be stored for a period of time, clean it thoroughly. This will help protect the meter from possible damage.
Procedure for Calibration
1. For the most accurate calibration, install the meter in the application. Fill a container to a known volume
with the liquid to be measured.
2. If meter amount is incorrect, turn calibration screw (item 31) counterclockwise for less liquid, or clockwise
for more liquid.
3. Repeat steps 1 and 2 until calibration is acceptable.
Troubleshooting Guide
The following troubleshooting guide is designed to help you with basic diagnostics and repairs if you should encounter
abnormal service from your 900 Series Meter. We recommend you use only genuine Fill-Rite parts. These parts, and
additional service information is available through your authorized Fill-Rite dealer.
Further troubleshooting information can be found in your pump manual. If you need additional assistance, please
contact Technical Support at 1 (800) 720-5192 (M-F, 8 AM–5 PM ET).
Concern Possible Cause Recommended Repair
Counter inaccurate Meter mis-calibrated. Check calibration and recalibrate as necessary (directions
on page 4).
Air in lines or metering chamber. Check line seals and joints for leakage; seal leaks appropriately.
Measuring gears or disc are sticking. Clean or replace internal metering components as necessary.
Fluid leak at shaft seal Dirty or damaged seal. Clean O-Ring seal and seat, replace seal as necessary.
Low ow capacity Clogged meter chamber. Clean meter chamber; clean or replace screens and lters
in piping.
Meter body cracks Excess line pressure. Install pressure relief valve to allow high pressure to bleed
back to the tank. Replace cracked meter body.
Nutating Disc Broken Sudden high pressure uid hitting
disc.
Avoid surge ows by installing a shut-off valve on outlet of
meter; install meter as close to the pump as possible, keep
piping full of liquid. Replace broken disc.
When a meter is sent in for maintenance, it should be triple rinsed and accompanied
by a note indicating what chemicals have been pumped through it. Meters that do not
adhere to these specications may be rejected.
NOTICE
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