FLR Flow Transmitter Installation & Programming Instructions
Password
Password protection prevents unauthorized users from changing programming information. Initially the pass- word is set to all zeros. Its displayed name is PASSWORD and is viewed or changed using the Numeric Value Entry Procedure found on page 8.
Restore Defaults
This feature allows you to restore factory calibration data. Its displayed name is RES DFLT. To restore fac- tory calibration data, select YES, then press ENTER.
V. MAINTENANCE
WARNING
Before attempting to remove the transmitter from the line, check the system to confirm that line pressure has been reduced to zero PSI. Failure to follow these instructions could result in serious personal injury or death and/or damage to the equipment.
WARNING
Always disconnect the primary power source before opening the enclosure for inspection or service. Failure to follow these instructions could result in serious personal injury or death and/or damage to the equipment.
Cartridge Cleaning (Figure 4 on page 5 and Figure 9 on page 15)
1.Disconnect the transmitter cable.
2.Remove the transmitter from the line. Remove excess piping from transmitter.
NOTE: It is not necessary to remove the aluminum housing from the transmitter to remove it from the line.
3.Thoroughly wipe off the entire transmitter sur- face using mild detergent or isopropyl alcohol.
WARNING
Do not use aromatic hydrocarbons, halogenated hydrocarbons, ketones, or ester based fluids on polycarbonate lens. Failure to follow these instructions could result in damage to the transmitter.
4.Remove the inlet port cap, wave spring, retain- ing ring, and cone assembly from the transmitter body (Figure 9 on page 15).
5.Gently push the body towards the outlet port.
6.The piston, inner magnet and transmitter spring are secured within the transmitter body with a retaining ring. Remove the retaining ring with a small screwdriver, then the internal components can be removed from the body (Figure 9 on page 15).
NOTE: If internal parts do not slide freely from cartridge, use a wooden dowel inserted into the outlet port of the transmitter to push parts out.
7.Place all parts on a clean work surface. Clean and inspect all parts. Replace any that appear worn or damaged.
Check inlet port
8.Reassemble the transmitter by inserting the transmitter spring into the body, followed by the piston/inner magnet assembly. A slight compres- sion of the piston against the spring is required during installation of the retaining ring.
9.Gently push body assembly into the outlet end of the transmitter enclosure. The flat surface of the body outlet port should be flush with the transmitter enclosure opening.
10.With the transmitter positioned vertically on a flat surface, inlet port facing up, install the trans- mitter cone assembly and wave spring into the body and secure with the inlet port end cap.
11.Reinstall transmitter to the line. Reconnect elec- trical power.
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