Sierra HART 600 Series,HART 760S,HART 640S,HART 700 Series,HART 780S-UHP,HART 780S Instruction Manual
600/700 Series HART
Instruction Manual
HART Device Specification for Models:
640S, 760S, 780S, and 780S-UHP
Thermal Mass Flow Meters
Part Number: IM600/700 HART, Rev. V1
May 2013
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IMPORTANT CUSTOMER NOTICE- OXYGEN SERVICE
Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instruments standard mass
flow meters for oxygen gas. You are responsible for determining if this mass flow meter is appropriate for your oxygen application. You
are responsible for cleaning the mass flow meter to the degree required for your oxygen flow application.
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SteelMass®, Compod™, and FlatTrak™ are trademarks of Sierra Instruments, Inc. Other product and company names listed in this manual
are trademarks or trade names of their respective manufacturers.
!
Warnings and Cautions
Warning!
nameplate for specific flow meter approvals before any hazardous location installation.
Warning!
manufacturer of the hot tap equipment and/or the contractor performing the hot tap is responsible for providing proof of such a
permit.
Warning!
Warning!
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
accordance with published CE directives.
Warning!
sensors and/or damage to the electronics.
Warning!
Warning!
Agency approval for hazardous location installations varies between flow meter models. Consult the flow meter
Hot tapping must be performed by a trained professional. U.S. regulations often require a hot tap permit. The
All wiring procedures must be performed with the power off.
To avoid potential electric shock, follow National Electric Code safety practices or your local code when wiring this unit
Do not power the flow meter with the sensor remote (if applicable) wires disconnected. This could cause over-heating of the
Before attempting any flow meter repair, verify that the line is de-pressurized.
Always remove main power before disassembling any part of the mass flow meter.
Caution!
control system. Adjustments to the electronics will cause direct changes to flow control settings.
Before making adjustments to the device, verify the flow meter is not actively monitoring or reporting to any master
Caution!
as the main pipeline.
Caution!
You cannot add or subtract wire length without returning the meter to the factory for re-calibration.
Caution!
before installing the meter.
Caution!
Caution!
precautions to minimize the risk of damage:
All flow meter connections, isolation valves and fittings for hot tapping must have the same or higher pressure rating
Changing the length of cables or interchanging sensors or sensor wiring will affect the accuracy of the flow meter.
When using toxic or corrosive gases, purge the line with inert gas for a minimum of four hours at full gas flow
The AC wire insulation temperature rating must meet or exceed 80°C (176°F).
Printed circuit boards are sensitive to electrostatic discharge. To avoid damaging the board, follow these
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
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