Siemens POLYMOBIL III - Checking the Intermediate Circuit Voltage

POLYMOBIL III RXB8-115.061.02 Page 8 of 24 Siemens AG
Rev. 01 10.95 CS PS 24 Medical Solutions
4 - 8 Notes on trouble-shooting
Checking the intermediate circuit voltage 4
• Connect oscilloscope or digital multimeter to D111.R1 and R2.
• Depending on the supply voltage, a value between 250... 350 V DC must be measured
with the digital multimeter.
Charging and discharging procedure
On D111 an intermediate circuit voltage of ... up to 350 V is
applied!
During oscilloscope operation the protective ground wire connec-
tion in the power cable must not be interrupted under any circum-
stances.
For measurements where ground loops that may be present could
impair the measuring result, use the TEK amplifier and the trigger
attachment.
CAUTION
D111 (X038I-111B
)
US
relay
ON
HR
relay
OFF