Optional Visual pH Color Change Result
3M™ Attest™ 1294 Rapid Readout Biological Indicators may be further incubated for a visual pH color change. Due to the high sensitivity of the fluorescent result, there is no advantage to incubating the 3M™ Attest™ 1294 Rapid Readout Biological Indicators beyond 4 hours. This optional further incubation is not intended for routine use but may be used for special studies. A humidified incubator will be required to avoid media dry out. In the case of a positive control BI, a yellow color change of the growth media will appear within 7 days. Any observation of a yellow color within the vial indicates a positive result. The pH color change result can be recorded and the BI discarded as soon as the yellow color is observed and the result recorded. In the case of a processed BI, a media color change from blue‑green to yellow indicates a sterilization process failure. A negative pH color change result, i.e., media remains blue‑green, can be assessed at 7 days.
INSTRUCTIONS FOR USE – Disposal
Instrument contains a lithium battery. Dispose of instrument in accordance with federal, state, and local requirements.
FEATURES OF THE 3M™ ATTEST™ AUTO‑READER 390G
Audible Alarm
An audible alarm will sound, the LCD display backlight will flash, and a (+) symbol will be displayed on the LCD panel directly under the incubating BI when a positive result is detected. An alarm will also sound if a 3M™ Attest™ Rapid Readout Biological Indicator is removed from the 3M™ Attest™ Auto‑reader 390G well before a final result has been detected. Data will be lost if the 3M™ Attest™ Rapid Readout Biological Indicator is not replaced in the incubation well within 10 seconds.
Alarm On/Off 
The audible alarm for positive results can be turned off for a particular 3M™ Attest™ Rapid Readout Biological Indicator. This is accomplished by pressing the “Buzzer Alarm OFF” button after the alarm has sounded. This will turn off the alarm for that BI only. Any positive 3M™ Attest™ Rapid Readout Biological Indicator results subsequently detected in other wells will result in the alarm sounding. Removing the 3M™ Attest™ Rapid Readout Biological Indicator will reactivate the alarm for that well. Pressing the “Buzzer Alarm OFF” button will not silence the alarm for error or caution code alarm warnings. To disable the alarm, see configuration section.
Stackable
To save counter space, 3M™ Attest™ Auto‑reader 390Gs may be stacked two high.
Information Button 
When the Information button is pressed once the 3M™ Attest™ Auto‑reader 390G displays two lines of text in the LCD display.
The top row indicates (left to right):
•3M™ Attest™ Auto‑reader 390G serial number
•3M™ Attest™ Auto‑reader 390G embedded software version (V X.Y.Z)
•Current date and time.
The bottom row indicates (left to right):
•The BI type configuration for wells 1‑5.
•The BI type configuration for wells 6‑10.
Press the information button twice and the 3M™ Attest™ Auto‑reader 390G LCD panel will display two additional lines of text.
The top row indicates:
•Dynamic IP address (if unit is connected to an Ethernet jack). The bottom row indicates (left to right):
•Date (YYYY‑MM‑DD) and time that power was supplied to the 3M™ Attest™ Auto‑reader 390G.
Temperature Monitoring 
The 3M™ Attest™ Auto‑reader 390G contains an internal temperature self‑diagnostic program. Should the temperature fall outside the specified range (37ºC +/‑2ºC) an error code will be displayed. The heater block temperature may be checked by depressing the Temperature button once.
Easy Configuration
The 3M™ Attest™ Auto‑reader 390G may be configured using either the buttons located on the front of the unit or using the optional 3M™ Attest™ Auto‑reader 390G Web App.
Optional 3M™ Attest™ Auto‑reader 390G Web App
If desired, the 3M™ Attest™ Auto‑reader 390G may be connected to a PC via an Ethernet connection for additional capabilities:
•Remotely view current status of BIs in the 3M™ Attest™ Auto‑reader 390G via PC or mobile hand held devices. For full functionality, the use of an HTML5 compliant browser with JavaScript enabled is recommended.
•Remotely view and configure 3M™ Attest™ Auto‑reader 390G settings.
•View the last 100 BI records.
•Print out documentation using a local or networked printer and/or save documentation as an electronic file.*
Note: To access the 3M™ Attest™ Auto‑reader 390G Web App within a secure network, the PC or mobile device must have access to the secure network; options include connecting via a network Ethernet cable, signing in to the facility’s wireless network, or connecting via a virtual private network (VPN).
* Refer to your facility’s record keeping policy and procedure.
CARE AND CLEANING
CAUTION: Always unplug the 3M™ Attest™ Auto‑reader 390G and allow to cool before cleaning.
Do not spill liquid onto or into the instrument. Do not immerse the unit in liquid.
Clean external surfaces using only the instructions provided by the manufacturer.
The instrument must be returned to the manufacturer for repair.
Clean the exterior surface of the 3M™ Attest™ Auto‑reader 390G by wiping it with a damp cloth moistened with a mild detergent. Do not attempt to clean interior components. If additional cleaning of the wells is required, call for repair or replacement.
Note: The 3M™ Attest™ Auto‑reader 390G does not contain any user serviceable parts or require any routine maintenance. Any malfunctions will be indicated by an error code. Refer to the Troubleshooting Guide section for error code explanations.
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