Dwyer TFM-LP - Manual (Page 2)

F-20-TF-L, pg. 2 of 30
T A B L E O F C O N T E N T S
A. Introduction ......................................................................................... 3
1. Unpacking .................................................................................................. 3
2. Product Overview And Principle Of Operation .............................................. 3
B. Installation ........................................................................................... 5
1. General Considerations .............................................................................. 5
2. Mounting The Flow Sensor Or Flow Meter .................................................. 6
3. Tubing Connections .................................................................................... 7
4. Electrical Connections ................................................................................. 8
a) Overview ........................................................................................... 9
b) Connecting A Cable Assembly ................................................................. 9
c) Electrical Connections – Voltage Output Units (TFP-LI & TFM-LI Series) ..... 10
d) Electrical Connections – Units With Both Voltage & Pulse Outputs
(TFP-LP & TFM-LP Series) ......................................................................... 11
e) Using a 0-5VDC Output Power Adapter Package .................................... 12
C. Operation .......................................................................................... 13
1. Start-Up ................................................................................................... 13
2. Entrapped Air or Gas ................................................................................ 13
3. Flow Readings .......................................................................................... 13
a) 0-5VDC Analog Outputs ....................................................................... 14
b) Pulse Outputs ..................................................................................... 14
c) Units with an Integral Display ................................................................. 14
4. Operating at Flow Rates Outside the Calibrated Flow Range ....................... 15
a) Flows Above the Maximum Rated Flow ................................................... 15
b) Flows Below the Minimum Rated Flow .................................................... 16
5. Zero Adjustments ...................................................................................... 16
6. Recalibration ............................................................................................ 16
7. Calibrating Units for different Liquids ......................................................... 19
D. Maintenance And Product Care ............................................................ 19
1. General .................................................................................................... 19
2. Cleaning and Flushing .............................................................................. 20
3. Returning Units For Repair Or Recalibration ............................................... 20
E. Specifications ..................................................................................... 21
F. Dimensions ........................................................................................ 23
G. Connector Pin And Wire Color Cross Reference ..................................... 27
H. Trouble Shooting Guide ...................................................................... 28
I. Warranty ........................................................................................... 30
J. Contacting Dwyer ............................................................................... 30