Operation manual of SMP131 series
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Operation manual of SMP131 series - 1

Compact pressure transmitter / Quick installation manual Safety Precautions Install pressure transmitter /! Pressure sensor/ transmitter shall be installed by professional engineers, technicians and other qualified personnel, please read carefully the content and important information provided by this installation guide and label before installation. /! Pressure sensor / transmitter is powered by an external power supply, the power supply should be in accordance with relevant standards stipulated by energy limitation circuit, and pay attention to the high-voltage that may exist in the circuit. /! The static pressure overload has been marked on the label, the maximum pressure value should be no more than the span of sensor. /! Using pressure sensor/transmitter in dangerous situations, product installation, using and maintenance should comply with installation guide and relevant provisions of national standards. /! Attention please! Disassemble the instruments under the condition of normal atmospheric pressure only. i Important information ^ Static pressure overload ^2 Power supply ^ Signal outline type ^ Explosion proof mark ^Intrinsic safety equipment parameters ^ Certificate /! Please note! Exceeding static pressure overload will cause damage to the instruments, even lead to burst and casualties. Pipe pressure measurement Direct installation Light-weight pressure transmitter can be mounted directly on the pressure leading tube. Bracket is not needed. When using a spanner to screw hexagon bolt, the maximum torque force can not exceed 50Nm. z! ■ Do not install the instruments in medium flow area or the position of pressure impact. ■ Install the instruments in the downstream of the globe valve, easy for calibration and function test.. ■ The installation position of pressure transmitter may lead to measuring deviation. For example: the measured value does not show zero under the condition of normal atmospheric pressure. Please revise zero shift and refer to the chapter of "Zero point adjustment". The tapping location is selected according to measuring media, situated at the top for gas, on the side or bottom for liquid and steam. Base welding For high-temperature steam measuring, more than half-tube cooling water should be pre-injected in the condenser. After the steam pipes are stable, slowly open the shut-off valve to start measuring. /! Forbid base welding with pressure transmitter and avoid base deformation caused by welding. And please pay attention to clean up waste residue to avoid scratching the measuring diaphragm. Container pressure measurement Straight thread end seal Container level measurement Can be used for liquid level measurement in open container and mounted on a level and temperature changes smoothly position. It will help to improve the measurement accuracy. Media compatibility should be considered. Differential pressure measurement system Straight thread root seal Two pressure transmitters can be composed of DP measurement systems, commonly used in the filter control or closed container level measurement. If there is any question, please contact Shanghai LEEG Instruments Co.,Ltd. Tel: 86-21-31261976 Fax: 86-21-31261975 Email: info@leeg.cn, sales@leeg.cn

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Operation manual of SMP131 series - 2

Compact pressure transmitter / Quick installation manual Electrical connection Intrinsic safety 4-20mA(DIN43650 ) Label 1 Connect the positive power supply (P+) to the terminals 1 of pressure transmitter; 2 Connect the positive signal module (S+) to the terminals 2 of pressure transmitter; 3 Connect the negative signal module (S-) to the negative power supply (P-). /! Please note! The signal connection of intrinsic safety instruments needs to refer to isolated safety barrier factory instructions. Three wire current/voltage signal(DIN43650) Cable outlet Label ! The reference pressure is the...

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Operation manual of SMP131 series - 3

Compact pressure transmitter / Quick installation manualIntrinsic safety 4-20mA (Aviation plug with cable) Label Brown/11 + mm Field adjustment It is convenient for range adjustment with HART protocol software. For detailed operation, please refer to the instructions of display meter. /! Please make adjustment with caution. Not all types of pressure transmitters have adjustment function. Zero point adjustment Isolated safety barrier © Connect the positive power supply (P+) to the terminal 1/brown wire of pressure transmitter; © Connect the positive power supply (P+) to the terminal 4/black...

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Operation manual of SMP131 series - 4

Compact pressure transmitter / Quick installation manualException handing ■ Measurement signal is abnormal which should judge the process pressure is abnormal, measuring system error or influence of installation environment or abnormal in the pressure transmitter, then analyze the reason and take corresponding measures. ■ No signal output, process pressure changes but no measurement corresponding change, or change does not correspond, it may be an abnormal pressure transmitter, it needs to check the power supply voltage, wiring, power consumption and load resistance whether they meet normal...

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