1. GmbH Specialist hotel application ComplianceCommercial refrigeration Industrial refrigeration Light Industrial Gas Detection MGS-550 Product Portfolio Price Performance MGS-150 IP41 MGS-150 IP66 MGS-250 IR MGS-550 GP MGS-550 XP IAM-100 HGM-MZ MGD-100

2. GmbH  One user interface for all sensing technologies from Bacharach – Electrochemical – Catalytic Bead – Infrared – Semiconductor  One concept for all applications – two housing styles: ABS IP 66 and aluminum explosion proof  Simplicity without sacrificing functionality MGS-550 A new Family of Transmitters

3. GmbH  One user interface for all family members – 5 digit, 7-segment LED, 3 Status LEDs – Magnetic wand and push buttons – Simple, single level menu structure – Analog and digital signal output – Three on-board relays (user to designate, e.g. A1, A2, Fault)  Electrical ratings – 19.5 to 28.5 VDC or 24 VAC ± 20% – 4 to 20 mA, 0 to 5 V, 1 to 5 V, 0 to 10 V, 2 to 10 V – user selectable – Modbus RTU via RS 485 – Relays 1 A @ 24 VDC/VAC, 0.5 A @ 125 VAC MGS-550 A new Family of Transmitters

4. GmbH MGS-550 Electrical safety and EMC approvals

5. GmbH MGS-550 ATEX, IECEx Approvals, XP-version MGS-550 XP electronics enclosure  II 2G Ex d IIC Gb  MGS-550 XP sensor enclosure  II 2G Ex d IIC T4 Gb, -20 ≤ Tamb ≤ +60 ºC – Each enclosure has its own approval. – However, the combination has not been submitted.

6. GmbH Four types of instruments  One local sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 2 wires for analog output (4 if redundant) – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 General Purpose Un-used ports can be plugged. Plugs and cable glands are supplied.

7. GmbH Four types of instruments  One remote sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 2 wires for analog output (4 if redundant) – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 General Purpose Un-used ports can be plugged. Plugs and cable glands are supplied. Order remote sensor separately.

8. GmbH Four types of instruments  Two local sensors: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 General Purpose Un-used ports can be plugged. Plugs and cable glands are supplied. Order second sensor separately.

9. GmbH Four types of instruments  One local and one remote sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 General Purpose Un-used ports can be plugged. Plugs and cable glands are supplied. Order remote sensor separately.

10. GmbH Four types of instruments  Two remote sensors: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 General Purpose Un-used ports can be plugged. Plugs and cable glands are supplied. Order remote sensors separately.

11. GmbH Four types of instruments  One local sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 2 wires for analog output (4 if redundant) – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 Explosion Proof No cable glands are supplied with the instrument ! Two plugs are supplied.

12. GmbH Four types of instruments  One remote sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 2 wires for analog output (4 if redundant) – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 Explosion Proof No cable glands are supplied with the instrument ! Two plugs are supplied. Order remote sensor separately.

13. GmbH Four types of instruments  Two local sensors: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 Explosion Proof ? No cable glands or elbow are supplied with the instrument ! Two plugs are supplied. Order second sensor separately. R&D is still working on this solution. Elbow not supplied.

14. GmbH Four types of instruments  One local and one remote sensor: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 Explosion Proof No cable glands are supplied with the instrument ! Two plugs are supplied. Order remote sensor separately.

15. GmbH Four types of instruments  Two remote sensors: – 5 digit, 7 segment LED display – 3 status LEDs – 4 magnetic switches and push buttons – 2 wires for power – 4 wires for analog output – 2 wires for digital output – 3 SPDT relays; independent to designate MGS-550 Explosion Proof No cable glands are supplied with the instrument ! Two plugs are supplied. Order remote sensors separately.

16. GmbH O2 30 Vol% CO1,000 ppm H2S 100 ppm NH3 100 / 1,000 / 5,000 / 10,000 ppm / 100 %LEL CO2 5,000 / 10,000 / 20,000 / 30,000 / 40,000 / 50,000 ppm Refrigerants 1,000 / 10,000 ppm Combustible Gases5,000 ppm / 100 %LEL H2 5,000 / 10,000 ppm C2H42,000 ppm VOC 1,000 ppm Cl2 10 ppm F2 1 ppm HCl 10 ppm SO2 10 ppm NO2 20 ppm HCN 30 ppm O3 1 ppm MGS-550 Detectable Gases and Ranges

17. GmbH MGS-550 User Interface 5-digit, 7-segment red LED display Three status LEDs Four magnetic switches (both versions) Four push buttons on round Bezel

18. GmbH MGS-550 Interface PCB Access to sensor connectors; power, communication and relay terminals. Use 16 to 20 AWG / 0.5 to 1.5 mm2 wires.

19. GmbH MGS-550 Gas Alarm Generation – Non-Latching Alarm 1 State A1 Hysteresis = 5% of full scale Gas Level Alarm-On Level Alarm-Off Level Fixed hysteresis to avoid chatter around the alarm set- point

20. GmbH MGS-550 Gas Alarm Generation – Non-Latching for Oxygen Fixed hysteresis to avoid chatter around the alarm set- point

21. GmbH MGS-550 Gas Alarm with ON Delay set Alarm 1 On A1 ON Delay ON Delay time selectable 0 to 15 minutes

22. GmbH MGS-550 Gas Alarm with ON Delay set If set, alarm condition must exist for at least the ON Delay time before an alarm is generated Alarm 1 On A1 ON Delay Delay Reset

23. GmbH MGS-550 Multiple Gas Alarms with ON Delay set If set, alarm condition must exist for at least the ON Delay time before an alarm is generated Alarm 1 On A1 ON Delay 1 A2 A3 ON Delay 2 Alarm 2 On ON Delay 3 Alarm 3 On

24. GmbH MGS-550 Gas Alarm with OFF Delay set – Non-Latching OFF Delay time selectable 0 to 15 minutes Alarm 1 On A1 OFF Delay

25. GmbH MGS-550 Gas Alarm with OFF Delay set – Non-Latching If set, alarm condition must expire for at least the OFF Delay time before an alarm is reset Alarm 1 On A1 OFF Delay

26. GmbH MGS-550 Gas Alarm with ON and OFF Delay set – Non-Latching If set, alarm condition must exist for at least the ON Delay time before an alarm is generated and expire for at least the OFF Delay time before an alarm is reset Alarm 1 On A1 ON Delay OFF Delay

27. GmbH MGS-550 Latching Gas Alarm A latching gas alarm stays on until it is acknowledged Alarm 1 On Acknowledgement A1

28. GmbH MGS-550 Multiple Latching Gas Alarms Latching gas alarms stay on until they are acknowledged Alarm 1 On Acknowledgement A1 A2 Alarm 2 On

29. GmbH MGS-550 Acknowledgeable Gas Alarm and Timeout An acknowledged gas alarm will be triggered again if the alarm condition still exists after the timeout has expired. Timeout selectable between 0 and 59 minutes. Alarm 1 On Acknowledged A1 Alarm 1 On Timeout

30. GmbH MGS-550 Acknowledgeable Multiple Gas Alarms and Timeout Acknowledged gas alarms will be triggered again if the alarm conditions still exist after the timeout has expired Alarm 1 On A1 Alarm 1 On A2 Alarm 2 On Acknowledged Alarm 2 On Timeout

31. GmbH MGS-550 Acknowledgeable Multiple Gas Alarms and Timeout An acknowledged gas alarm will be triggered again if the alarm conditions still exist after the timeout has expired, whereas A2 will not be triggered again in this scenario. Alarm 1 On A1 Alarm 1 On A2 Alarm 2 On Acknowledged Timeout

32. GmbH MGS-550 Acknowledgeable Gas Alarm and Timeout An acknowledged gas alarm will be triggered again if the alarm condition still exists after the timeout has expired. Any other gas alarm will be triggered immediately once the condition exists. Alarm 1 On A1 Alarm 1 On A2 Alarm 2 On Acknowledged Timeout

33. GmbH MGS-550 Acknowledgeable Multiple Gas Alarms and Timeout Reset An acknowledgement will reset a timeout. However, the gas alarm will be triggered again if the alarm conditions still exist after the new timeout has expired. Alarm 1 On A1 A2 Alarm 2 On Acknowledged Alarm 1 On Alarm 2 On Timeout Timeout Reset

34. GmbH MGS-550 Acknowledgeable Gas Alarm and ON Delay An acknowledgement during the ON Delay time has no effect. The gas alarm will be triggered if the alarm condition still exists. Alarm 1 On A1 ON Delay Acknowledged

35. GmbH MGS-550 Acknowledgeable Gas Alarm and OFF Delay An acknowledgement during the OFF Delay time will immediately reset the gas alarm. Alarm 1 On A1 Acknowledged

36. GmbH MGS-550 Acknowledgeable A1 and Latching A2 An acknowledgement will reset the gas alarms and clear the latching configuration of alarm 2. Alarm 1 On A1 A2 Alarm 2 On Alarm 1 Acknowledged and Alarm 2 Latching Cleared