SET METER TO
600
PROBE
CONNECTIONS
BLACK
COM
RED
V
Voltage Check of Transformer (fig. 1)
1) Hold one probe to each of the power lines that run into
the terminal strip from the transformer. Be careful not to
touch the probes together.
2) Check the reading on your multimeter.
Acceptable range: 24-28V (AC)
Resistance Check at Fuse (fig. 2)
1) Remove cover of controller.
2) Remove each fuse to test it.
3) Touch one probe to each side of the fuse.
4) Check the reading on your multimeter.
Acceptable range: Very low or zero (Ohms): OK.
A high value or Over-Range Indication (OL) indicates
a bad fuse.
Note: The TI-DSA500 will make a beeping noise when the
reading is below 50±35 Ω in this mode.
-
6
-
SET METER TO
600
PROBE
CONNECTIONS
BLACK
COM
RED
V
ñ
V
AC
SET METER TO
/
PROBE
CONNECTIONS
BLACK
COM
RED
V
V
DC
Voltage Check at Battery (fig. 3)
1) Remove cover from the controller and remove the
DC battery.
RB.DSA500.TGuide.mech2 3/20/03 12:39 PM Page 6
