Brand Schneider
Name, valve positioner
Model number ND9103HX
The Schneider ND9103HX is a valve positioner.
The advantages of the Schneider ND9103HX valve Positioner are:
The external leakage is blocked, the internal leakage is easy to control, and the use is safe. Other automatic control valves usually extend the valve stem, and the rotation or movement of the valve core is controlled by the electric, pneumatic, and hydraulic actuator, which has the problem of external leakage; Only the solenoid valve does not have a dynamic seal, so the external leakage is easy to block.
Simple structure, only by the electromagnetic force can easily complete the switching action.
Quick action, short reaction time.
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Label
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Specification
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Model Number
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ND9103HX
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Brand
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Schneider Electric
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Type
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Intelligent Control Interface Module
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Input Voltage
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24 V DC (±5%)
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Operating Temp
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-20 °C to +65 °C (-4 °F to +149 °F)
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Storage Temp
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-40 °C to +85 °C (-40 °F to +185 °F)
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Communication Method
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Ethernet, Modbus RTU/TCP
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Mounting
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DIN Rail (35 mm)
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Weight
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0.42 kg (0.93 lbs)
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Certifications
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CE, UL 508, RoHS Compliant
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Dimensions (W×H×D)
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45 mm × 110 mm × 120 mm
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IP Rating
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IP20 (Control Cabinet Use)
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Protocols Supported
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Modbus, DNP3.0, IEC 61850
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Input Channels
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8 Analog (4-20 mA), 16 Digital
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Protection Features
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Surge Protection, Reverse Polarity
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The disadvantages of the Schneider ND9103HX valve Positioner are:
It is greatly affected by electromagnetic interference.
Can not be controlled remotely, generally used for field control.
The cost is high and the price is higher than other valve positioners.
The installation steps of the Schneider ND9103HX valve positioner are as follows:
Fix the valve positioner together with the mounting plate and connect the mounting plate with three M5*20 screws through the three holes in the shell.
Connect the feedback part of the valve positioner with the actuator, loosen the stem nut on the regulating valve, and fasten the support plate in the feedback part between the indicator and the connecting nut.
The mounting plate equipped with the valve positioner and the actuator bracket are fixed with M10*15 screws according to the required position.
Insert the connection pin on the feedback connection plate in the feedback unit into the valve positioner CAM feedback dry opening slot.
Different types of actuators should ensure that when the valve position is 50%, the CAM feedback lever should be in the horizontal position.
After adjusting the parts of the installation connection, fix the lock.
ND9103HX valve positioner is the main accessories of regulating valve, according to the structure of pneumatic valve positioner, electric-gas valve positioner and intelligent valve positioner, is the main accessories of regulating valve, usually used with pneumatic regulating valve.
ND9103HX it accepts the output signal of the regulator, and then uses its output signal to control the pneumatic regulating valve. When the regulating valve is operated, the displacement of the valve stem is fed back to the valve positioner through the mechanical device, and the valve position is transmitted to the upper system by electrical signal.
The ND9103HX valve positioner can increase the output power of the regulating valve, reduce the transmission lag of the regulating signal, speed up the moving speed of the valve stem, improve the linearity of the valve, overcome the friction of the valve stem and eliminate the influence of the unbalanced force, and ensure the correct positioning of the regulating valve.
