AW Gear Meters FEM-03 - Manual (Page 11)

FEM-03 Flow Monitor
Operation and Programming Manual
10
connections. Refer to drawing #301199 FEM-03 on page 41 for schematic details of the FEM-03 inputs
and outputs.
Upper Connector Terminal Designations
UP 1 +15VDC OUT – power supply for the transmitter. Approx. 15VDC (power supply dependent),
approx. 20mA. max.
UP 2 DC COMMON – power supply common for the transmitter (floating).
UP 3 FREQ. A INPUT – frequency input from the transmitter. 0-4KHz, 4 volts minimum, 10Kohm
maximum input impedance. Used as primary frequency input, or for A channel of A and B pick-up sensor
(B = 90° phase shifted signal) to detect flow direction.
UP 4 NOT USED
UP 5 NOT USED
UP 6 (+) mA OUTPUT (models FEM-03A, -03A2 and -03Ax only). Positive assignable 0-20 mAmp
output. The low range of the output span is adjustable between 0 and 10mA. See ANALOG OUT on page
18 for information regarding the display of the mA output. When in Directional flow mode, (Model FEM-
03A2 only), the full signal span represents full positive-to-negative flow, with mid-span representing
zero flow. See ANALOG OUT Programming on page 27 for more information regarding analog output
setup.
UP 7 (-) mA OUTPUT (models FEM-03A -03A2 and -03Ax only). Negative assignable 0-20 mAmp
output. See (+) mA OUTPUT above.
UP 8 LIMIT 2 COMMON – common contact of Limit 2 Relay (Form C). See NOTE below. See the FEM-
03 Connection Diagram on page 12 for limit connection details. See Relay Contact Ratings Table on page
9 for contact ratings.
UP 9 LIMIT 2 N.C. – normally closed contact for Limit Relay 2 without power applied to FEM-03.
NOTE: The N.C. contacts become N.O.* whenever the FEM-03 has power applied with limit status OFF
and will CLOSE when limit status is ON. See LIMITS Display Mode on Page 18 and LIMITS Programming
on page 28 for information regarding limit display and programming.
UP 10 LIMIT 2 N.O. – normally open contact for Limit Relay 2 without power applied to FEM-03.
NOTE: The N.O. contacts become N.C. whenever the FEM-03 has power applied with limit status OFF
and will OPEN when limit status is ON. See LIMITS Display Mode on page 18 and LIMITS Programming
on page 28 for information regarding limit display and programming.
*
N.C. and N.O. = normally closed and normally open