Hoffer Flow Controls CAT3-AC-MIL User Manual page 7

CONTENTS
FORWARD ------------------------------------------------------------------------ i
CONTENTS ----------------------------------------------------------------------iii
1. Safety ------------------------------------------------------------------------ 1
2. Compliance ---------------------------------------------------------------- 3
3. Specifications -------------------------------------------------------------- 5
3-1 Model Number Designation ---------------------------------------- 6
4. Operation ------------------------------------------------------------------ 7
4-1 Preamplifier ----------------------------------------------------------- 7
4-2 Microcontroller ------------------------------------------------------- 7
4-3 Analog Output -------------------------------------------------------- 8
4-4 Scaled Pulse Output ------------------------------------------------- 9
4-5 Communications Interface ------------------------------------------ 9
5. Installation ---------------------------------------------------------------101
5-1 Power Supply -------------------------------------------------------- 11
5-2 Flowmeter Input ----------------------------------------------------- 11
5-3 Pulse Output --------------------------------------------------------- 12
5-4 Analog Output ------------------------------------------------------- 14
5-5 Wiring ---------------------------------------------------------------115
5-6 Flowmeter Installation and Initial Startup ----------------------166
6. Preventative Maintenance --------------------------------------------177
6-1 Introduction ---------------------------------------------------------177
7. TROUBLESHOOTING -----------------------------------------------199
7-1 Introduction ---------------------------------------------------------199
7-2 Troubleshooting Procedures --------------------------------------199
7-2-1 Symptom: No flow indication when flow is present -----199
7-2-2 Symptom: Flow indication with no flow present----------- 20
7-3 Replacing the Electronics ------------------------------------------ 20
Appendix A - Default Configuration -------------------------------------- 23
Appendix B - Communications --------------------------------------------- 25
Communications Interface -------------------------------------------------255
Appendix C - Drawings -----------------------------------------------------266
iii HP-325