56 Installation and start-up procedures

Table 10 - J1, J2 and J3 connector pin assignment

 

Connector J1 & J2

 

Connector J3

 

 

 

 

 

Pin

 

Assignment

Pin

Assignment

 

 

 

 

 

1

 

EQL

1

EQL

 

 

 

 

 

2

 

RG+

2

HVSDR

 

 

 

 

 

3

 

RC-

3

HVSD

 

 

 

 

 

4

 

N/C

4

RFA1

 

 

 

 

 

5

 

HVSDR

5

LOGIC RETURN

 

 

 

 

 

6

 

HVSD

6

RFA2

 

 

 

 

 

7

 

RFA

7

N/C

 

 

 

 

 

8

 

N/C

8

LVA

 

 

 

 

 

Order cable assembly P0739814 to connect the alarm signals (J3) to the alarm monitoring unit.

NT5C10BM

The NT5C10BM power shelf (23 inch mounting) is wired to accept the NT5C10KB local equalize feature. It can house up to three MPR15 or MPR25 rectifiers and is wired for common AC input, 120 / 208 / 240 V AC.

When the equalize switch is set to the EQL position, a battery return signal is sent to the remote equalize input port of each rectifier in the power shelf. The rectifier output voltage will increase by the amount set with the EQL adjustment potentiometer of the rectifier. Each rectifier must be individually adjusted to the same equalize voltage level. The yellow LED indicates that the rectifiers are in equalize mode.

NT5C10KA & KB

This option is offered with the embedded power shelves to provide local equalize. The power shelf must be pre-wired in order to install this feature. The NT5C10KA is brown and the NT5C10KB is oxford grey.

Note : It is recommended that the rectifiers be inserted in the shelf from right to left, starting with position 1. When a Low Voltage Disconnect unit is available, the LVD must be mounted to the right of position 1.

UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.00 May 2001

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Emerson MPR15 Series, MPR25 user manual NT5C10BM

MPR15 Series, MPR25 specifications

The Emerson MPR25 and MPR15 series are advanced pressure regulators designed for precise control and performance in various industrial applications. Known for their durability and reliability, these regulators are ideal for both gas and liquid control systems, ensuring consistent operation across a wide range of conditions.

One of the main features of the MPR series is its innovative design that utilizes a robust diaphragm mechanism. This mechanism provides a high degree of sensitivity and response time, allowing for quick adjustments and ensuring accurate pressure regulation. The regulators are available in different pressure ranges, making them versatile for various processes and systems.

The MPR25 series typically caters to applications requiring higher flow capacities. It boasts an extensive flow capacity with less pressure drop, making it suitable for demanding environments where maintaining system efficiency is crucial. This series is often used in applications such as gas distribution systems, instrumentation, and chemical processing.

On the other hand, the MPR15 series is designed for lower flow applications, providing precise pressure control in compact spaces. Despite its smaller size, it maintains excellent performance, featuring low droop characteristics that allow for consistent pressure output even with varying flow rates.

Both series incorporate advanced materials and sealing technologies to enhance their durability and resistance to harsh operating conditions. The body is commonly made from high-grade materials that ensure resistance to corrosion, allowing for longer service life and reduced maintenance needs. Additionally, the regulators feature easy-to-adjust set points, enabling operators to quickly adapt to changing process requirements.

Furthermore, the MPR25 and MPR15 series regulators are designed with safety in mind. They include built-in safety features to prevent over-pressurization, enhancing system protection and operator safety. The design also allows for easy installation and servicing, contributing to lower operational costs over time.

In summary, the Emerson MPR25 and MPR15 series pressure regulators stand out for their precision, durability, and efficiency. With their advanced diaphragm mechanism, robust construction, and user-friendly features, they meet the needs of a diverse range of industrial applications, ensuring reliable operation in every environment. Whether for high-demand or compact applications, these regulators are an excellent choice for maintaining the integrity and performance of pressure control systems.