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◆ Users are not allowed to change the electrical components and system
matching status of the product at will.
◆ The installation, use and maintenance of the product shall also comply
with the product manual GB3806.15-2000 "Electrical Equipment for Explosive
Gas Atmosphere” Part 15: Electrical installation in hazardous areas (mineral
removal)" and relevant provisions in GB50058-1992 "Electric Equipment Design
Specification in Explosion and Fire Hazard Environment”.
◆ Lead-in cable of the flameproof product shall meet requirements of φ8 ~
φ8.5mm. Tighten the compression nut during on-site use to make the seal ring
hold the cable tightly.
◆ The product has a redundant inlet, which shall be blocked with the plug
provided by our company.
4.6 Measurement method
◆ Liquid measurement:
When measuring flow rate of the liquid, the pressure tap shall be open on the
side of the process pipeline to avoid dross sedimentation. At the same time,
the transmitter shall be installed beside or below the pressure tap to allow air
bubbles to escape into the process pipeline.
◆ Gas measurement:
When measuring gas flow, the pressure tap shall be open at the top or side
of the process pipeline. And the transmitter shall be placed beside or above
the process piping so that accumulated liquid can easily flow into the process
pipeline.
◆ Steam measurement: When measuring steam flow, the pressure port is open
on the side of the process pipeline, and the transmitter is installed under the
pressure port so that the condensate can be filled in the pressure pipe.
It shall be noted that when measuring steam or other high temperature media,
the temperature shall not exceed temperature limit of the transmitter.
When medium to be measured is steam, the pressure pipe should be filled with
water to prevent the steam from directly contacting the transmitter. Since volume
change of the transmitter is negligible during operation, there is no need to
install a condensing tank.
Note: A transmitter with release valve is equipped in the pressure
chamber and pressure tapping shall be open on the side of the process
pipeline. When the measured medium is liquid, discharge valve of the
transmitter shall be installed to discharge gas that has penetrated in the
measured medium. When measured medium is gas, discharge valve of
the transmitter shall be installed below to discharge accumulated liquid.
Monocrystalline Silicon High Stability Transmitter
