Warnings and Cautions
Warning!
Agency approval for hazardous location installations varies between flow
meter models. Consult the flow meter
nameplate for specific flow meter approvals
before any hazardous location installation.
Warning!
Hot tapping must be performed by a trained professional. U.S. regulations
often require a hot tap permit. The
manufacturer of the hot tap equipment and/or the
contractor performing the hot tap is responsible for providing proof of such a
permit.
Warning!
All wiring procedures must be performed with the power off.
Warning!
To avoid potential electric shock, follow National Electric Code safety practices
or your local code when wiring this unit to
a power source and to peripheral devices. Failure to do so could result in injury or death. All AC power connections must be in accor-
dance with published CE directives.
Warning!
Do not power the flow meter with the sensor remote (if applicable) wires disconnected. This could cause over-heating of the
sensors and/or damage to the electronics.
Warning!
Before attempting any flow meter repair, verify that the line is de-pressurized.
Warning!
Always remove main power before disassembling any part of the mass flow meter.
Caution!
Before making adjustments to the device, verify the flow meter is not actively monitoring or reporting to any master control
system. Adjustments to the electronics will cause direct changes to flow control settings.
Caution!
All flow meter connections, isolation valves and fittings for hot tapping must have the same or higher pressure rating as
the main pipeline.
Caution!
Changing the length of cables or interchanging sensors or sensor wiring will affect the accuracy of the flow meter.
You cannot add or subtract wire length without returning the meter to the factory for re-calibration.
Caution!
When using toxic or corrosive gases, purge the line with inert gas for a minimum of four hours at full gas flow before
installing the meter.
Caution!
The AC wire insulation temperature rating must meet or exceed 80°C (176°F).
Caution!
Printed circuit boards are sensitive to electrostatic discharge. To avoid damaging 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
!
