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Series 830/840/860 Instruction Manual Table of Contents
IM-83/84/86-H 0-7
Warnings and Cautions
Warning! Follow National Electric Code or your local code safety practices when wiring
or connecting this unit to a power source. Only qualified personnel should install and wire
the transducer.
Warning! Always remove main power before disassembling the transducer.
Caution! During operation, the mass flow controller valve becomes hot.
Caution! Do not use the manual purge function when RS-485 is active (Model
860 only).
Caution! Always fully neutralize any toxic gas trapped inside the transducer before re-
moving from the gas line.
Caution! Only qualified personnel should perform transducer service, calibration or
troubleshooting procedures.
Caution! Printed circuit boards are sensitive to electrostatic discharge. To avoid damag-
ing the board, follow these precautions to minimize the risk of damage:
• before handling the assembly, discharge your body by touching a grounded, metal
object
• handle all cards by their edges unless otherwise required
• when possible, use grounded electrostatic discharge wrist straps when handling
sensitive components