Emerson Micro Motion High Precision HPC010/HPC015 Series High Pressure Coriolis Flow Meter Installation Guide

Emerson Micro Motion High Precision HPC010/HPC015 Series High Pressure Coriolis Flow Meter Installation Guide

In the fields of oil and gas, chemical, and high-pressure fluid measurement, the accuracy, reliability, and safety of flow meters are directly related to process control and asset protection. The Micro Motion brand under Emerson is renowned worldwide for its Coriolis technology. This article is based on Micro Motion ™ The Installation Manual for High Voltage Coriolis Flow Meter (MMI-20035667, Rev AD) provides a systematic technical analysis of the installation preparation, mechanical installation, electrical wiring, grounding, and safety protection of HPC010 and HPC015 high-voltage sensors, aiming to provide professional guidance for on-site engineers.

Product Overview and Application Preparation

The HPC series Coriolis flowmeter is designed specifically for ultra-high pressure applications, providing high-precision mass flow, density, and temperature measurements under extreme process conditions. Before unboxing and installing, engineers need to complete the following key checks:

Environmental and process compatibility: It is necessary to verify whether the explosion-proof certification level on the sensor nameplate is consistent with the hazardous area classification at the installation site. At the same time, it is necessary to confirm that the current ambient temperature and process medium temperature are within the instrument limit range. The temperature range of the process medium for HPC010 is -50 ℃ to 125 ℃, and the ambient temperature is -40 ℃ to 60 ℃; The process medium temperature range of HPC015 is wider, reaching -46 ℃ to 200 ℃, and the ambient temperature is also -40 ℃ to 60 ℃.

Installation orientation planning: To achieve optimal performance, the installation orientation should be selected based on the type of medium. For liquids, it is recommended to flow from bottom to top to ensure that the pipeline is filled; For gases, it is recommended to flow from top to bottom. For self emission applications, sensors should be installed vertically. The manual provides a clear orientation selection table for engineers to refer to.

Vibration assessment: The broadband random vibration limit of HPC010 is 0.35g RMS (according to IEC60068-2-64). If the system vibration exceeds this value or requires certification from a classification society, anti vibration measures must be taken, such as using anti vibration clamps provided by spare parts. HPC015 complies with the IEC60068-2-6 standard and can operate stably in vibration environments of 5-2000Hz and up to 1.0g.

Mechanical installation specifications

2.1 Installation of Sensor Body

HPC010: Usually installed online, using sensor slots on the flange for positioning. It is strictly prohibited to lift sensors through transmitters or rupture discs. The sensor does not require external support, and the flange itself is an omnidirectional support point.

HPC015: Provides flexible installation methods. The sensor can be installed online or fixed to the wall using an installation bracket. During installation, it is necessary to ensure that the flow arrow is consistent with the direction of the process fluid (the direction can also be reversed through software settings).

2.2 Installation of Core Processor and Electronic Components

Enhanced Core Processor: Can be installed on pipes or walls. For pipeline installation, two user provided U-bolts are required to secure the bracket. The core processor cover on the bracket is rotatable for easy orientation adjustment.

MVD DirectConnect intrinsic safety barrier: needs to be installed on a 35mm DIN rail. During installation, fasten the safety barrier onto the guide rail and secure it using an end clamping device. The safety barrier provides wiring terminals for the intrinsic safety side (connecting the core processor) and the non intrinsic safety side (connecting the remote host and power supply).

Extended electronic components: If the sensor is equipped with an extended electronic component, the extension tube needs to be installed on the sensor through tube. Ensure that the through tube and extension tube are clean and dry during operation, align the slots, and tighten with clamps to a torque of 1.47 to 2.03 Nm. The O-ring must remain in place to ensure sealing.

Electrical wiring and power connection

The wiring method varies depending on the type of electronic components in the transmitter.

3.1 4-wire cable wiring (applicable to split type transmitters)

A 4-wire cable needs to be connected between the core processor and the transmitter, including a pair of wires for DC power supply (red/black) and a pair of wires for RS-485 communication (white/green).

Cable preparation: If metal conduit is used, the drain wire should be kept floating at both ends of the conduit. If cable sealing joints are used, the shielding layer should be reliably terminated inside the joint. The cable sealing joints provided by Gaozhun have detailed stripping length requirements (NPT joint stripping 114mm, M20 joint stripping 108mm), and the shielding layer should be folded back onto the clamping insert to ensure 360 ° shielding continuity.