3
Magtrol Model 5210-2 Power Supply
User’s Manual
2.0
conFIGurAtIon
2.1
i
nput
p
ower
The 5210-2 is shipped set for 120 V
rms
power. This can be verified by observing the location of the
round white tab in the fuse holder of the power line filter module that is located on the rear panel
- it should show through the 120 V hole.
2.1.1
Setting Line Power to 240 V
1. Remove the line cord.
2. Remove the fuse holder to access the inner module.
3. Remove the small circuit board with the white tab.
4. Rotate and reposition the white tab so that when the board and fuse holder are reinserted,
the round point of the white tab now inserts into the small round hole on the fuse holder
that is opposite the 240 V position.
Note:
Of the four (4) voltage positions shown on the fuse holder, only
the 120 V and the 240 V positions are active. Selecting either the
100 V or the 220 V position will not apply line power to the power
supply. Therefore, use only the 120 V or 240 V positions.
2.2
e
xternal
c
ontrol
i
nput
An EXTERNAL CONTROL input is provided at the rear of the 5210-2 to adjust the dynamometer
current from an external 0 to + 5.0 VDC input. This input is scaled for 5.0 VDC and equals the full
scale output current of each current range (0.2, 0.5 and 1.0 amp).
When this connector is plugged in, the front panel ADJUST control is nonfunctional.
3.0
oPErAtIon
The 5210-2 is universal for all Magtrol Dial Weight Dynamometers. However, because of the wide
range of full scale current requirements; 0 to 0.164 amps (HD-106-1) to 0 to 0.700 amps (HD-705-1),
a three position current range control provides improved torque resolution control. The three settings,
HIGH, MED and LOW determine the full scale current level of the power supply. Full scale for
the HIGH, MED and LOW ranges are 1.0, 0.5 and 0.2 amps, respectively. The digital panel meter
indicates the current output level to within ± 1%.
Starting on the LOW current range, with the ADJUST knob set fully counter clockwise (zero
current), increase (INC) current until the desired torque is obtained. Select the next higher RANGE
as necessary to obtain this torque.