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Document Part # 026-4417 Rev 2

Page 2 of 9

©2020 Emerson Retail Solutions, Inc. This document may be photocopied for personal use. 
Visit our website at http://www.emerson.com for the latest technical documentation and updates.

2. Component Overview

#

Component Description

1

M16 Cable Glands 

(x6)

2

Rubber Gasket

3

Internal Alarm Buzzer

4

Power Connections 

(x2)

5

Digital Connection 

(Modbus)

6

Analog Connection

7

Tactile Switch #1

8

Ribbon Cable Connection 

(To Sensor)

9

Tactile Switch #2

10

Relay 3 Connection 

(FAULT)

11

Relay 2 Connection 

(HIGH)

12

Relay 1 Connection 

(LOW)

13

Magnetic (Mag) Switch #1

14

Magnetic (Mag) Switch #2

15

M20 Cable Glands 

(x2)

Table 1 - Component Descriptions

Figure 2 - Component Locations

Summary of Contents for MRLDS-450

Page 1: ...n become occluded moisture dust debris frozen condensation over time resulting in reduced or complete lack of gas detection and alarming function Routine visual inspection of the gas detector and bump...

Page 2: ...mponent Description 1 M16 Cable Glands x6 2 Rubber Gasket 3 Internal Alarm Buzzer 4 Power Connections x2 5 Digital Connection Modbus 6 Analog Connection 7 Tactile Switch 1 8 Ribbon Cable Connection To...

Page 3: ...3 9 10 cm Alarm Delay Configurable 0 to 15 minutes Inputs Tactile Switches x2 Magnetic Switches x2 Outputs Analog Output 1 to 5V default 0 to 5V 0 to 10V 2 to10V or 4 to 20mA Bluetooth Bluetooth Low...

Page 4: ...ANT Cable glands are meant to accommodate one cable DO NOT use cable glands for more than one cable IMPORTANT If analog output is 4 to 20mA connect or short the connection to ensure the gas detector d...

Page 5: ...an X tightening pattern 5 MRLDS 450 Network Setup for Site Supervisor and E2 For Modbus end of line termination use 150 ohm resistor or termination block P N 537 2711 Do not use MRLDS 120 ohm on boar...

Page 6: ...Emerson Retail Solutions Inc This document may be photocopied for personal use Visit our website at http www emerson com for the latest technical documentation and updates 5a Site Supervisor Device a...

Page 7: ...ions Inc This document may be photocopied for personal use Visit our website at http www emerson com for the latest technical documentation and updates 5b E2 Device and COMM Setup Figure 8 E2 Setup Fo...

Page 8: ...0 App and click the Bluetooth icon at the bottom of the screen to initiate a scan 3 Select the instrument default is 18TMAE from the list of available gas detectors 4 When prompted enter the passkey d...

Page 9: ...S setup of E2 please see the Quick Setup Guide P N 026 4419 For Technical Support call 770 425 2724 or email ColdChain TechnicalServices Emerson com Emerson P N IP66 3 x Relays Analog Output Modbus Ou...

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