Basler Electric BE3-74VL - Manual (Page 2)

CALIBRATION
The calibration marks on the faceplate have a maximum
error of 10% and are provided only as guides. Proper
calibration requires using an accurate voltmeter in parallel
with the input signal. Use the following procedure to
calibrate your relay.
Overvoltage
1. Adjust the SET control fully clockwise.
2. Apply the desired trip voltage to the relay.
3. Slowly adjust the SET control counterclockwise until the
relay trips.
Undervoltage
1. Adjust the SET control fully counterclockwise.
2. Decrease the applied sensing voltage from the nominal
value until the desired tripping voltage is reached.
3. Slowly adjust the SET control clockwise until the relay
trips.
MAINTENANCE
BE3 relays are solid-state devices that require no
maintenance. In the event that your relay requires repair,
contact Basler Electric, Highland, IL, USA for return
authorization.
ORDERING INFORMATION
Figure 2 shows the BE3 dc voltage sensing relay style
number identification chart.
FIGURES
Figure 1. BE3-74VL, BE3-74VH, and BE-74VD Input Connections
Figure 2. BE3-74VL, BE3-74VH, and BE3-74VD Style Number Identification Chart
Publication
9321400990
Revision
D
Instructions
Date
04/14
Page
2 of 2