Switch #1 Switch #2 Switch #3 Trips Below:
OFF
OFF
OFF
13.01 Volts
OFF
OFF
ON
12.76 Volts
OFF
ON
OFF
12.52 Volts
OFF
ON
ON
12.29 Volts
ON
OFF
OFF
12.07 Volts
ON
OFF
ON
11.85 Volts
ON
ON
OFF
11.64 Volts
ON
ON
ON
11.44 Volts
INTRODUCTION
The UV-OV Relay is a device which continuously monitors the voltage of a battery system and
detects overvoltage and undervoltage conditions. A set of contacts are provided for each of
these conditions. The values of the overvoltage and undervoltage detection points are easily
and independently programmable by accessible “DIP” switches behind the removable cover.
An adjustable time delay of 8 to 150 seconds is provided.
INSTALLATION
Figure 1 is a view of the programming switches with the snap-on top cover removed. Refer to
this figure when programming the unit.
Programming Switches
FIGURE 1
TEST/RUN
Switch
TEST
Undervoltage
Programming
Switches
Overvoltage
Programming
Switches
R U N
(a) Select the desired undervoltage trip point from the column to the far right in table 1 below.
(b) Set switches #1, #2 and #3 to the settings shown in table 1 corresponding to the
selected trip point in step (a).
TABLE 1 Undervoltage Programming
