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SPECIFICATIONS
Power Supply Specifications
Power supply  Operating Condition  Units
Voltage Range  100‑240  Volts AC
Frequency 50/60  Hertz
Current 0.6  Amps
Environmental Operating Conditions
Environmental Condition  Operating Condition  Units
Altitude  3000 (max)  Meters
Operating Temperature  16 – 40  ºC
Storage Temperature  ‑10 to 50  ºC
Operating Relative Humidity  20‑80 (non‑condensing)  %
Voltage Range  12  Volts DC
Frequency DC
Current 1.2  Amps
Installation/Over Voltage  Category II
Pollution Degree  2
INSTRUCTIONS FOR USE – Initial Set‑up
Choose Location
Place 3M™Attest™ Auto‑reader490 on a firm level surface away from sunlight 
and incandescent light. To save counter space, units may be stacked twohigh.
 WARNING:
•
Do not place the instrument in environment exposed to sunlight or strong 
incandescentlight.
•
Do not place instrument close to any device that emits a strong electro‑magneticfield.
•
Do not use on a vibratingsurface.
Select & Install Correct Power Plug
The 3M™Attest™ Auto‑reader490 power supply comes with multiple blade 
configurations. Install the blade configuration appropriate for your country into 
the power supply and plug into appropriate AC groundedoutlet.
 WARNING: Use only the power supply specified for this product and certified for the 
country ofuse.
Wait 30 Minutes Before Using
Once plugged in, allow a 30 minute warm‑up period before placing 3M™Attest™ Super Rapid Readout Biological Indicators into the incubation wells. The C1 caution code will 
disappear when proper incubation temperature isreached.
Special Considerations
It is recommended that the unit be left on to eliminate warm‑up periods. The unit may be turned off when it is anticipated that it will not be used for an extendedperiod.