The information contained in this manual is subject to change without notice.
Effort has been made to make the information in this manual complete, accurate, and current.
The manufacturer shall not be held responsible for errors or omissions in this manual.
Consult YSI.com for the most up-to-date version of this manual.
Thank you for purchasing a YSI Professional Series Quatro handheld meter. This manual covers setup, operation, and
functionality of the ProQuatro handheld.
Safety Information
Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all precautionary
statements. Failure to do so could result in serious injury to the operator or damage to the equipment. Do not use or install this
equipment in any manner other than that specified in this manual.
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including, without limitation,
direct, incidental and consequential damages, and disclaims such damages to the full extent permitted under applicable law. The
user is solely responsible to identify critical application risks and install appropriate mechanisms to protect processes during a
possible equipment malfunction.
NOTICE: Indicates a situation which, if not avoided, may cause damage to the instrument
Precautionary Symbols
NOTE: Information that requires special emphasis
WARNING: Indicates a potentially or imminently hazardous situation which, if not avoided, could
result in death or serious injury
CAUTION: Indicates a potentially hazardous situation that may result in minor or moderate injury
Product Components
Carefully unpack the instrument and accessories and inspect for damage. If any parts or materials are damaged, contact YSI
Customer Service at 800-897-4151 (+1 937 767-7241) or the authorized YSI distributor from whom the instrument was purchased.
Each ProQuatro handheld is shipped with:
• Quick Start Guide
• USB flash drive with a digital copy of the manual
• Two (2) C-size alkaline batteries
• USB 2.0 cable for connection to a USB flash drive
