AZI Sales/Customer Service 800-528-7411 or 602-470-1414 or support@azic.com Page 7 of 26
4.3. AC Power Connection
The MAX
®
4000 can be used with a 100-120 VAC or a 220-240 VAC input power source.
Check the setting on the fuse holder in the power entry module, located at the rear of the
instrument, and make sure it is set for the correct voltage for your environment.
Ensure that the power entry module (where the power cord connects
to the instrument) is set for the correct voltage for your environment.
To change the voltage from 110 to 220VAC or 220 to 110VAC:
• Remove the power cord.
• Pry the fuse holder from the power entry module.
• Ensure only 8 amp timed fuses are installed for 100-120 VAC operation or only 4 amp
timed fuses are installed for 220-240 VAC operation. (Note: There are four fuses in
the power entry module: Two in the fuse holder clips and two spares in the slide out
compartments.)
• Rotate the fuse holder 180º and reinstall it in the power entry module making sure that
the arrow on the power entry module is pointing to the proper voltage for your
environment.
Connect power to the instrument:
• Ensure that the power switch, located on the power entry module in the back of the
instrument, is set to off (O).
• Remove the power cord from the packing material and insert the rectangular end into
the power entry module.
• All accessory equipment, printer, computer, etc., should be connected before applying
power to the instrument. See section 4.7 Connecting a USB Printer on page 11 for
brief printer setup instructions or see the manual for instructions on all accessories.
For best results, AZI recommends that the instrument is provided
with its own DEDICATED electrical power outlet. Do not put it on a
circuit with motors, blenders, heaters, coolers, grinders, or other high
current electrical devices.
The power source outlet that is used by the MAX
®
4000 MUST BE
GROUNDED. (If you are not sure if the socket is grounded, check
with your plant electrician before proceeding). The MAX
®
4000 will
appear to function correctly even if the socket is not grounded,
but there is a danger of possible electrocution! If grounded
outlets are not available, consider using a ground fault
interrupter to protect personnel against electrical shock.
• Plug the power cord into a dedicated electrical power outlet. Line noise on the power
lines may affect accuracy. A dedicated AC power line or an isolation transformer for
the MAX
®
4000 may be beneficial in eliminating this noise.
• Turn on the instrument by flipping the switch on the power entry module on the back
of the instrument; the instrument is designed to remain powered up at all times.
• From a cold start, allow the instrument to warm up for 60 minutes, before testing.
100-120 VAC, 50/60 Hz @ 8 Amps – fuse is F8A T250V
220-240 VAC, 50/60 Hz @ 4 Amps – fuse is F4A T250V
Fused on/off switch is part of an EMI power entry module