Making the Necessary Connections
981088 – September 1995
49
Section 8: Making the Necessary Connections
Checking the Electrical Supply
Important Information
Caution
Check the polarity of the AC power supply using a DIGITAL VOLTMETER TL-1445. Applying power of non-
standard polarity will void the warranty and can cause damage to the PROCESSOR.
Important
Contact your local power authority to determine whether the typical daily voltage at your site is within the range of
104 to 127 V AC. If the power authority states that the power available is within the range of 104 to 127 V AC, the
site does not require the use of a TRANSFORMER KIT. If the voltage at your site is not within the range, the
TRANSFORMER KIT CAT No. 167-4340 is required.
Important
Contact your local power authority to determine whether the typical daily voltage at your site is within the range of
207 to 253 V AC. If the power authority states that the power available is within the range of 207 to 253 V AC, the
site does not require the use of a TRANSFORMER KIT. If the voltage at your site is not within the range, the
TRANSFORMER KIT CAT No. 171-0292 is required.
Table 2
Service Options
Service Requirements for European Installations of the M43 PROCESSOR
Check for compliance with the requirements listed below:
• POWER CORD must comply with local codes.
• EARTH CONDUCTOR must be green and yellow in color.
• CONDUCTORS must have a minimum cross sectional area of 1.50 mm
2
.
• For installations in Germany, check that the colors of the CONDUCTOR INSULATION comply with the
requirements listed below:
– Blue - Neutral
– Brown - L
1
– Black - L
2
– Green/Yellow - Ground (PE)
Processor
Nominal Voltage Volts
Frequency Hz
Service
M43A and Clinic 1
120
50/60 - M43A
60 - Clinic 1
2-Wire, Single Phase,
Dedicated Circuit, plus
Earth Ground
M43
230
240
50/60 - M43 only
2-Wire, Single Phase, plus
Earth Ground
