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22 

© 2021 All rights reserved. Data subject to change without notice. 

RDM - Operation Manual 

Rev. B | 2021.12

At the end of each line a letter may be displayed that provides information 

about the status of the Channel:

Letter

Description 

none

System working normally

d

Channel disabled

F

Channel is in Fault condition

C

Channel cannot communicate with transmitter

c

Channel Configuration Fault

L

Channel is in low alarm

M

Channel is in mid alarm

H

Channel is in high alarm

S

Channel has a STEL alarm

T

Channel has a TWA alarm

I

Channel has an IDLH alarm

Example of a Fault condition:

NOTE:

 The display may show additional information related to the channels 

Summary of Contents for CET-RDM

Page 1: ...Operation Manual www critical environment com RDMRemote Display Module Rev B 2021 12...

Page 2: ...Description 8 2 2 Key Features 8 3 INSTRUMENT SPECIFICATIONS 9 3 1 Technical Specifications 9 3 2 Enclosure Dimensions 11 4 INSTRUMENT FEATURES 12 4 1 Exterior Enclosure 12 4 2 Interior System Layout...

Page 3: ...ION 20 6 1 Navigating the Menu Structure 20 6 2 Accessing the Menu with Passcodes 20 6 3 Power Up and Warm up 21 6 4 Normal Display 21 6 5 Set LCD Display Contrast Level 23 6 6 Modbus Settings 24 6 6...

Page 4: ...oduct must be installed by a qualified electrician or factory trained technician and according to instructions indicated in this manual This instrument has not been designed to be intrinsically safe F...

Page 5: ...used for the purposes stated in the manual Critical Environment Technologies is not liable for auxiliary interfaced equipment or consequential damage Prior to shipping equipment to CETCI contact our...

Page 6: ...s manual may not be copied or translated in whole or in part in any manner or format without the written permission of CETCI Modbus is a registered trademark of Gould Inc Corporation BACnet is a regis...

Page 7: ...manufacturer reserves the right to make changes at any time without notice In addition due to improvements made to our products there may be information in this manual that does not exist in the vers...

Page 8: ...alternate and relevant location to the controller such as a refrigeration application where there are two different entrances to the chiller room The RDM will display much of the same information as...

Page 9: ...duce RF interference Weight 272 g 9 6 oz Size 127 mm x 127 mm x 71 mm 5 0 in x 5 0 in x 2 8 in ELECTRICAL Power Requirement 0 5 W of power using the 24 VDC supplied by the controller Current Draw 20 8...

Page 10: ...20 Indicator Status LED indicators for low mid high and fault alarms Menu Accessed using up down and enter push buttons INPUT OUTPUT Communication Receives Modbus commands from the FCS and duplicates...

Page 11: ...ENDIE D ORIGINE ELECTRIQUE Conforms to CSA C22 2 No 205 12 CSA C22 2 No 61010 1 12 Conforms to UL508 Edition 17 2007 UL 61010 1 Edition 3 Conforms to EMC Directive 2004 108 EC EN 50270 2006 Type 1 EN6...

Page 12: ...ect to change without notice RDM Operation Manual Rev B 2021 12 4 INSTRUMENT FEATURES 4 1 Exterior Enclosure NUMBER FEATURE FUNCTION Door Hinge Secures door Display 4 lines x 20 characters Status 1 2...

Page 13: ...Rev B 2021 12 RDM Operation Manual ARROW UP Press to scroll up through menu ENTER Press to select menu choice ARROW DOWN Press to scroll down through menu Fault LED Indicates unit fault condition Door...

Page 14: ...CS Modbus Connector TB3 Terminal used to connect other devices in the Modbus network Remote Strobe Terminal TB1 Connection for remote strobe or strobe horn 24V 500 mA max Test Points TP1 TP2 Used for...

Page 15: ...most types of interference produced by other electrical devices you might encounter in your daily routine If you a have a pacemaker follow your healthcare provider s instructions about being around t...

Page 16: ...ne screw securing the door to the base for electrical safety and provides an opening to allow the user to apply a padlock or tie wrap if they desire the transmitter to be locked Refer to Section 4 1 E...

Page 17: ...inge 1 2 Conduit Entry Knockout 5 5 Wiring Power Connections The RDM Remote Display is a low voltage powered device Any application of operating voltages higher than indicated in the specification may...

Page 18: ...e connected to earth ground at the controller power supply that is providing power for the RDM NOTE WARRANTY VOID IF SOLID CORE WIRE IS USED AT THE WIRING TERMINAL STRIP When using solid core wiring f...

Page 19: ...tructions Similarly in order for the controller to communicate with the RDM the two devices must have the same baud rate The factory default baud rate for all CETCI Modbus devices is 19 200 If you nee...

Page 20: ...you back to the Exit screen 6 2 Accessing the Menu with Passcodes The main menu structure is broken down by the passcode access entry These passcodes allow for direct access to the parts of the menu s...

Page 21: ...ding Registers NOTE After the warm up period of the transmitters the system may exhibit gas alarm condition s if any of the sensors have not completely stabilized during the warm up period This is nor...

Page 22: ...tion none System working normally d Channel disabled F Channel is in Fault condition C Channel cannot communicate with transmitter c Channel Configuration Fault L Channel is in low alarm M Channel is...

Page 23: ...allows you to check the model and firmware version of the RDM The screen will display this information and then return to the Normal Display 6 5 Set LCD Display Contrast Level The contrast level of t...

Page 24: ...a response to every request sent This default Modbus ID is 230 The second Modbus ID is used to receive the screen updates from the FCS There is no response from the RDM on this line This Broadcast Mod...

Page 25: ...I Modbus devices is 19 200 If you need to change the baud rate in the Basic Menu passcode 1001 press the ARROW keys to scroll through the menu and select Set Baud rate Press E to select Use the ARROW...

Page 26: ...for the system to work 6 7 Mask Lines NOTE The mask lines functionality is only applicable to the FCS model with 4 or less channels If connected to the other FCS models the display configuration of th...

Page 27: ...ger the buzzer or strobe connected to the RDM Only the channels being displayed by the RDM can be silenced To silence the buzzer or stop the strobe push the E button The alarm action will be halted fo...

Page 28: ...6 5 Set LCD Display Contrast Level RDM constantly shows Connection Lost Check that the number of Remote Devices is set correctly in the FCS RDM cannot be seen by the Controller and or the BAS DDC on...

Page 29: ...o not show as expected Changing the display functionality or priority selection channels for the RDM on the FCS generally require a restart of the FCS Push and hold the button on the FCS circuit board...

Page 30: ...30 2021 All rights reserved Data subject to change without notice RDM Operation Manual Rev B 2021 12 NOTES...

Page 31: ...2021 All rights reserved Data subject to change without notice 31 Rev B 2021 12 RDM Operation Manual NOTES...

Page 32: ...Rev B Unit 145 7391 Vantage Way Delta BC V4G 1M3 Canada Tel 1 604 940 8741 Toll Free 1 877 940 8741 2021 All rights reserved Data subject to change without notice www critical enviroment com SAFER AI...

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