AW Gear Meters LLC-E-BA - Manual (Page 6)

AW-Lake Company 8809 Industrial Drive, Franksville, WI 53126  web: www.aw-lake.com
 Tel: 262-884-9800  Fax: 262-884-9810  Email: [email protected]
REV. 1.3 LLC-E-BA Manual rev 3.3.10.DOC
6
Sensor Connection
The flow meter sensor is connected using the MS style connector located on the right side of the
enclosure. If a flowmeter cable was not supplied, follow the sensor connector diagram for cable
wiring instructions. Shielded cable is required! Do not connect the shield at the sensor end!
Sensor Connector Detail (5-pin on current units)
Pin A => Sensor Supply (isolated), approx. 18 VDC
Pin B => Sensor Common (isolated)
Pin C => Signal Input
Pin D => NOT USED
Pin E => Shield Connection (to Earth Ground )
Sensor Connector Detail (4-pin on older units)
Pin A => Sensor Supply (isolated), approx. 18 VDC
Pin B => Sensor Common (isolated)
Pin C => Signal Input
Pin D => Shield Connection (to Earth Ground )
Using a ΑSinking≅ Sensor
The LLC-E-BA accepts an
Αactive≅ or Αsourcing≅ sensor output as standard. For sensors providing
an Αopen collector≅ or Αsinking≅ output, a pull-up resistor is required for operation as shown in the
LLC Input Circuit Detail below. The value of the pull-up resistor is selected so as to not exceed the
current rating of the pick-up output. Typical pull-up values range from 2.2K
Ω to 5.1K Ω . The LLC-E-
BA enclosure must be opened to install the pull-up resistor. The resistor is installed on the rear of the
LLC display module to terminals 1 and 3 on the upper connector. See Resistor Connection Detail
below for pull-up resistor installation.
LLC Input Circuit Detail Resistor Connection Detail