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DOD Technologies EC20 Series Operating Manual

Electrochemical gas detector cabinet
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EC20x
Electrochemical Gas Detector Cabinet
Operating Manual

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  • Page 1 EC20x Electrochemical Gas Detector Cabinet Operating Manual...
  • Page 2 EC20x Cabinet Operating Manual  DOD Technologies, Inc. 675 Industrial Drive Bldg. A. Cary, IL 60013 Phone 815.788.5200 DODtec.com Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 2...

  • Page 3: Table Of Contents

    EC20x Cabinet Operating Manual Table of Contents Chapter 1 – Overview ..................................4 1.1 Introduction ....................................4 1.2 Theory of Operation .................................. 4 Chapter 2 – Features ..................................5 2.1 External Layout ..................................5 2.2 External Dimensions ................................. 6 2.3 Wiring Diagrams ..................................7 2.3 Wiring Diagrams ..................................

  • Page 4: Chapter 1 - Overview

    Chapter 1 – Overview 1.1 Introduction DOD Technologies’ EC20x Gas Detector Cabinet is designed to house a series of single-point electrochemical gas detectors – see specifications for compatibility. While creating a centralized hub, the EC20x is fully customizable from the factory. This transforms a seemingly ordinary cabinet into a robust toxic gas monitoring system (TGMS) with improved transport time and extractive detection from distances up to 600 feet.

  • Page 5: Chapter 2 - Features

    EC20x Cabinet Operating Manual Chapter 2 – Features 2.1 External Layout Electrical Wiring & Sample Fan Exhaust Tubing Ports (standard version only) Cabinet Window Keyed Door Access Air Filter (standard version only) Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 5...

  • Page 6: External Dimensions

    EC20x Cabinet Operating Manual 2.2 External Dimensions Standard Version NEMA 4X Indoor/Outdoor Version Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 6...

  • Page 7: Wiring Diagrams

    EC20x Cabinet Operating Manual 2.3 Wiring Diagrams Open View Top & Front Views Side Views Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 7...

  • Page 8: Wiring Diagrams

    EC20x Cabinet Operating Manual 2.3 Wiring Diagrams Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 8...
  • Page 9 EC20x Cabinet Operating Manual Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 9...
  • Page 10 EC20x Cabinet Operating Manual Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 10...
  • Page 11 EC20x Cabinet Operating Manual Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 11...
  • Page 12 EC20x Cabinet Operating Manual Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 12...
  • Page 13 EC20x Cabinet Operating Manual Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 13...

  • Page 14: Chapter 3 - Maintenance Alarms

    EC20x Cabinet Operating Manual Chapter 3 – Maintenance Alarms Maintenance alarms indicate that a pump or power supply has failed. The system will continue to operate utilizing the redundant/backup unit. However, maintenance is recommended as soon as possible to return the system to standard operation.

  • Page 15: Normal Operation Of Form C Relays For Maintenance Alarms

    EC20x Cabinet Operating Manual Figure 3.1.1 – View of Form C Relays for maintenance alarms 3.2 Normal Operation of Form C Relays for Maintenance Alarms 3.2.1 Vacuum Pump PUMP1FAIL Form C Relay The Form C relay LED indicator is OFF under normal operation. Meaning the main vacuum pump is running the system.

  • Page 16: Vacuum Pump Pump3Fail Form C Relay

    EC20x Cabinet Operating Manual Figure 3.2.1.1 3.2.2 Vacuum Pump PUMP3FAIL Form C Relay The Form C Relay LED indicator is OFF under normal operation. This indicates the primary vacuum pump is running the system. The relay is under the NC (normally closed contact position). Also note the Latching relay PUMP 3 RED LED is ON.

  • Page 17: Power Supply Maintenance Alarm P/S 1 Fail

    EC20x Cabinet Operating Manual Figure 3.2.2.1 3.2.3 Power Supply Maintenance Alarm P/S 1 FAIL The Form C Relay LED indicator is ON under normal operation. This indicates the main power supply is running the system. The relay is under the NO (normally open contact position). Also note the redundancy module LED1 and P/S 1 DC OK green LEDs are ON.

  • Page 18: Power Supply Maintenance Alarm P/S 2 Fail

    EC20x Cabinet Operating Manual If the system is running with the Redundant/Backup pump the Form C Relay LED indicator is OFF under the maintenance alarm condition. This indicates the main power supply is running the system. The relay is under the NC (normally closed contact position). Also note the redundancy module LED1 and P/S 1 DC OK green LEDs are OFF.

  • Page 19: 4-20Ma Ec20X Centralized Option (2-910-003)

    EC20x Cabinet Operating Manual If the system is running with the Redundant/Backup pump the Form C relay LED indicator is OFF under the maintenance alarm condition. Meaning the main power supply is running the system. The relay is under the NC (normally closed contact position).

  • Page 20: Chapter 4 - Ec20X Modbus Interface Option For Cosmos Ps-7-M

    EC20x Cabinet Operating Manual Chapter 4 – EC20x Modbus Interface Option for Cosmos PS-7-M Optional Modbus communication protocol for New Cosmos PS-7-M units provide a remote means to monitor the entire system. * Please contact us for info regarding other compatible gas detector units. 4.1 EC20x Modbus Interface (Option 2-910-002) Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200...

  • Page 21: Dip Switch Setup

    EC20x Cabinet Operating Manual NOTE: The DIP switches are accessible when the address plate is removed. To remove the address plate, refer to 7-1. “Operation Procedure” of the PS-7-M series gas detector’s instruction manual. 4.2 Dip Switch Setup MODE DIP SWITCH: Set Far right dip switched as follows below, Left switch off, and Right switch ON. Set the IP address type: “DY”...
  • Page 22 EC20x Cabinet Operating Manual Set the address by sliding the eight address setting switches to the “1” or “0” positions. The 8-digit number is an 8-bit binary number representing the address. The address settable range is 1 (0000 0001) to 254 (1111 1110). Further details are contained in the PS-7-M Communications Specifications Guide.
  • Page 23 EC20x Cabinet Operating Manual Positions 1-8 Dip Switches should be set from right to left as they are defined in the table below. Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 23...

  • Page 24: Status Leds

    EC20x Cabinet Operating Manual 4.3 Status LEDs The status LEDs located on the base unit indicate the LAN cable and communication statuses. Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com REV 9/25/2024 Page 24...

  • Page 25: Chapter 5 - Ec20X Modbus/Tcp Operation

    Chapter 5 – EC20x Modbus/TCP Operation NOTE: The following section applies to EC20x software version 23.06xx and newer. Please contact DOD Technologies for instructions pertaining to earlier software versions. 5.1 Modbus Server Configuration 1. Network access for MODBUS/TCP and Remote viewing on the EC20x is provided through LAN port 2 on the Beckhoff IPC inside the unit as shown below.
  • Page 26 EC20x Cabinet Operating Manual 3. Using Tight-VNC, connect to the default IP address above with password: dod675 4. Once the remote connection is established use these steps to change the IP address. a. Minimize or close the application. b. Click on Start->Control Panel c.
  • Page 27 EC20x Cabinet Operating Manual 8. Additionally, the IP address can be changed directly through the webserver by selecting ‘Network’. Note, it is important to note the new IP address before submitting this change as this process will disconnect the existing webserver connection. 9.

  • Page 28: General Operation - Application Window

    2. To log onto the webserver, begin by using the default username (ClientAdmin) and default password. We highly recommend changing this Username and Password following the initial log in by accessing it under the ‘Users’ menu. Contact DOD Technologies (see Section 6) if you require additional assistance accessing the software.
  • Page 29 EC20x Cabinet Operating Manual 3. After logging in, under Configuration, select the ‘Sensor’ tab to select the sensor type, enable/disable each sensor, enable/disable Modbus communication for each sensor (it would need to be configured via dip switches to match the IP shown on this page), add a custom description, establish gas alarms and enable/disable Pyrolzers.

  • Page 30: Chapter 6 - Service & Support

    675 Industrial Drive, Bldg. A. Cary, IL 60013 Visit our website: DODtec.com For permanent discontinuation: Discontinued units may be eligible for recycling. Please contact DOD Technologies for additional information and instructions for arranging safe return of your equipment. Doc ID: DC-TEC-MAN-EC20x_E 815-788-5200 DODtec.com...

  • Page 31: Appendix A - Ec20X Data Maps

    EC20x Cabinet Operating Manual Appendix A – EC20x Data Maps A.1 Modbus TCP Server Settings Default IP: 192.168.16.215 Default Subnet: 255.255.255.0 Default Gateway: 192.168.16.1 EC20 Type Read/Write Data Description Notes Address Words 40001 Word Year 40002 Word Month 40003 Word Start time for Pass 40004 Word...
  • Page 32 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words Concentration - IEEE 754 Single- 40111 Float Sensor 2 Precision Float Alarm Level 1 - IEEE 754 Single- 40113 Float Sensor 2 Precision Float Alarm Level 2 - IEEE 754 Single- 40115 Float...
  • Page 33 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words 0:ppb, 1:ppm, 40146 byte Units- Sensor 4 2:%LDL Concentration - IEEE 754 Single- 40147 Float Sensor 5 Precision Float Alarm Level 1 - IEEE 754 Single- 40149 Float Sensor 5 Precision Float Alarm Level 2 -...
  • Page 34 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words 40181 Word Range- Sensor 7 Fullscale 0:ppb, 1:ppm, 40182 byte Units- Sensor 7 2:%LDL Concentration - IEEE 754 Single- 40183 Float Sensor 8 Precision Float Alarm Level 1 - IEEE 754 Single- 40185 Float...
  • Page 35 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words 40216 Word GasID- Sensor 10 Dod Gas ID 40217 Word Range- Sensor 10 Fullscale 0:ppb, 1:ppm, 40218 byte Units- Sensor 10 2:%LDL Concentration - IEEE 754 Single- 40219 Float Sensor 11 Precision Float...
  • Page 36 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words Sensor Type- 40251 Word PS7:0 PS7-M :1 Sensor 13 40252 Word GasID- Sensor 13 Dod Gas ID 40253 Word Range- Sensor 13 Fullscale 0:ppb, 1:ppm, 40254 byte Units- Sensor 13 2:%LDL Concentration - IEEE 754 Single-...
  • Page 37 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words Manufacturer- 0:New Cosmos, 1 40286 Word Sensor 16 Gastron Sensor Type- 40287 Word PS7:0 PS7-M :1 Sensor 16 40288 Word GasID- Sensor 16 Dod Gas ID 40289 Word Range- Sensor 16 Fullscale 0:ppb, 1:ppm,...
  • Page 38 EC20x Cabinet Operating Manual EC20 Type Read/Write Data Description Notes Address Words Alarm/Faults - *See table 1.1 for 40321 Word Sensor 19 details Manufacturer- 0:New Cosmos, 1 40322 Word Sensor 19 Gastron Sensor Type- 40323 Word PS7:0 PS7-M :1 Sensor 19 40324 Word GasID- Sensor 19...

  • Page 39: Ethernet/Ip Server Settings

    EC20x Cabinet Operating Manual A.2 Ethernet/IP Server Settings EC20 EL6652-0010 Ethernet/IP Default IP address: 192.168.16.204 Subnet 255.255.255.0 Assembly Instance 129: Data from EC20 to Customer Size: 466 Bytes (233 Words) Offset Size Format (Words) (Words) UDINT ConnCtrl REAL PlcVersion REAL ServerVersion WORD Year...
  • Page 40 EC20x Cabinet Operating Manual Assembly Instance 130: Data from Customer to EC20 Size: 4 Bytes (2 Words) Offset Size Format (Words) (Words) UDINT ConnStatus IMPORTANT : Floating Point (REAL) , DINT, and UDINT values are stored Little Endian (least significant first) using IEEE754 format.

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