Procedures -5, Constant-current mode -5 – AMETEK SGA Series User Manual
Page 87

Sorensen SGA Series
Installation
M550129-01 Rev AG
4-5
9. Apply AC power, tur
n the unit on, and press “Output On” button to enable
the output (see Section 3.1.1).
10. Adjust R35 so that the measured output voltage equals 100% rated
output voltage.
11. Turn off AC power, and remove all connections to the remote analog
control connector (J1), except the jumper between Pins J1-5 and J1-6;
ensure that they are jumpered to enable the output, and allow front panel
control.
4.3
REMOTE ISOLATED ANALOG INTERFACE
(OPTION) CALIBRATION AND VERIFICATION
PROCEDURES
CAUTION!
Hazardous voltages may be present on the output, even after it is
disabled, due to stored capacitive charge. Disconnect the mains AC
input, and allow 5 minutes to drain the output capacitive charge to
safe levels before connecting or removing output wiring.
4.3.1 CONSTANT-CURRENT MODE
1. Disconnect AC mains power to the unit. Setup the SGA Series unit to
operate with remote current programming using an external 0-5 VDC
voltage source, as shown in Figure 3-14 in Section 3.5.2. Ensure that
Pins J1-5 and J1-6 are jumpered to enable the output.
2. Connect a precision current shunt across the output of the power supply,
and attach a precision meter across the shunt Kelvin terminals. (see
Section 4.1.2).
3. Attach a precision meter in parallel with the current programming
voltage-source.
4. Set the current programming source to 0.0 V
1 mV.
5. Program the output voltage, with the front panel control or remote
interface, to 100% of rated output voltage.
6.
Apply AC power, turn the unit on, and press “Output On” button to enable
the output (see Section 3.1.1).
7. Set the current programming source to 5.0 V
1
mV
.