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Emerson NZ Series User Manual

Emerson NZ Series
24 pages
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NZ/NZ-M and
NZOS/NZOS-M Series
Pressure Reducing Regulators
Instruction Manual
D103764X012
January 2022
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Emerson NZ Series Specifications

General IconGeneral
InputsDigital Inputs, Analog Inputs
OutputsDigital Outputs, Analog Outputs
Output Voltage24 VDC (Digital Outputs), 0-10 VDC (Analog Outputs)
Output Current0-20 mA (Analog Outputs)
ProtectionShort Circuit Protection, Overload Protection, Reverse Polarity Protection
Controller TypeProgrammable Logic Controller (PLC)
Communication ProtocolEthernet/IP, Modbus TCP/IP, Modbus RTU/ASCII, Profibus DP (optional)
Power Supply24 VDC
Input Voltage Range0-10 VDC, 0-20 mA (Analog Inputs), 24 VDC (Digital Inputs)
Operating Temperature-20°C to +60°C
Storage Temperature-40°C to +70°C
DimensionsVaries depending on the specific model, typically around 100mm x 150mm x 75mm
WeightVaries depending on the specific model, typically around 0.5 kg

Summary

Principle of Operation

Installation

Overpressure Protection

Discusses methods and devices to prevent overpressure in the system to ensure safety.

Slam-Shut Device

Explains the operation and function of the integral slam-shut safety device.

All Installations

Covers general guidelines and precautions applicable to all regulator installations.

Startup and Adjustment

Pilot Adjustment

Provides detailed instructions for adjusting the pilot control screw for desired pressure settings.

Startup

Step-by-step guide for bringing the regulator into operation after installation.

Shutdown

Maintenance

Main Valve Maintenance

Details specific procedures for maintaining the main valve assembly components.

Actuator and Diaphragm Maintenance

Procedures for servicing the actuator and diaphragm components of the regulator.

JP Series Pilot Maintenance

General maintenance procedures applicable to all JP Series pilot assemblies.

JPLO and JPHO Series Second Stage Maintenance

Maintenance procedures for the second stage of JPLO and JPHO Series pilot assemblies.

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