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User Manual Control Unit Module Alpa MOD LED8 Product code: PW-033-A POD-006-ENG R03...
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We design, manufacture, implement and support: Systems for Monitoring, Detection and Reduction of gas hazards We invite you to familiarize yourself with our offer on www.atestgaz.pl Atest Gaz A. M. Pachole sp. j. ul. Spokojna 3, 44-109 Gliwice Poland tel.: +48 32 238 87 94 fax: +48 32 234 92 71 e-mail: contact@atestgaz.pl...
www.atestgaz.pl Remarks and reservations Connection and operation of the device is allowed only after reading and understanding the contents of this document. Keep User's Manual with the device for future use. The manufacturer bears no responsibility for errors, damages and failures caused by improper selection of devices and cables, improper installation or failure to understand the contents of this document.
www.atestgaz.pl Table of contents 1 Preliminary information..........................5 2 Safety..............................6 3 Description of the construction......................6 4 Electric interface.............................7 5 User interface............................8 5.1 OK................................8 5.2 WARNING..............................8 5.3 ALARM..............................9 5.4 FAILURE..............................9 5.5 POWER indicator lamp..........................9 5.6 Status memory............................9 6 Life cycle...............................10 6.1 Transport.............................10 6.2 Installation............................10 6.3 Start-up..............................11 6.4 The basic configuration relay outputs and digital inputs..............12...
Preliminary information The Alpa MOD LED8 Control Unit Module is a device designed to detect the presence of: flammable gas such as natural gas (methane) and LPG (propane, propane – butane), vapours of volatile substances (alcohol vapour, liquid fuels), toxic gases (hydrogen sulphide, carbon monoxide), any other gas, detectable by an appropriate sensor.
www.atestgaz.pl Safety All activities related to connecting detectors, signallers and other system components must be carried out while control unit's power supply is off. Although switching power supply of the Gas Safety System off, there is a possibility that a dangerous voltage can exist on the terminals of the Control Unit. It can originate from another system like for an example ventilation system that uses one of the output pins of control unit.
www.atestgaz.pl Electric interface NO COM NC NO COM DETECTOR 4 DETECTOR 3 DETECTOR 2 DETECTOR 1 POWER R4 FAILURE R3 LATCHED ALARM DETECTOR 5 DETECTOR 6 DETECTOR 7 DETECTOR 8 RS485 R2 ALARM R1 WARNING RS- RS+ OC- OC1+ OC2+ COM NO NC COM NO Figure 2: Electric connections...
www.atestgaz.pl User interface Gas Detector performs continuous measurement of gas concentration in the surrounding area and conducts systematic tests of performance of Measuring Heads. Depending on the result of of these steps, status may be as follows: – “device working properly”, WARNING –...
FAILURE relay (NC – COM contact closed). Pressing CONFIRM / CLEAR will disable the internal siren. POWER indicator lamp If the POWER indicator lamp is on, the Alpa MOD LED8 is operational. The indicator lamp will be turned off: if Alpa MOD LED8 is defective, in case of decrease or loss of controller voltage or battery discharge.
www.atestgaz.pl pressing MEMORY will display the contents of the memory on the front panel, which will be signalled by the MEMORY indicator lamp lighting continuously, Pressing CONFIRM / CLEAR for 5 seconds allows to erase the memory, pressing the MEMORY key again will return to displaying the current status. Life cycle Transport The device should be transported in the same way as new devices of this type.
www.atestgaz.pl Liquid gas (LPG) These gas detectors should be placed acc. to similar principles as methane gas detectors, taking into account the fact that both propane and butane are heavier than air and will accumulate close to the floor. This is why the gas detectors should be placed no higher than about 20 – 40 cm from the floor level. Carbon monoxide (CO) Due to similar density to the density of air, the gas detectors should be installed approx.
www.atestgaz.pl in case of controlling more powerful circuits and bigger inductive load an additional controlling contractor should be used, directly controlling the device (e. g. a set of fans), do not exceed technical data limits shown in table 6. The basic configuration relay outputs and digital inputs Relay Input activation: Output inactivation:...
www.atestgaz.pl 6.5.1 Maintenance Except cleaning the external part of the enclosure, the device does not require any maintenance. The external part of the enclosure should be cleaned by means of a soft cloth moistened with water and a bit of a mild detergent.
Table 6: Technical specification The value applies only to power consumption of the Alpa MOD LED8 Control Unit Module. When determining the total power of the gas detection system the power consumption of all devices in the system, e. g. gas detectors, sirens, battery charging, etc. should be taken into account.
Appendices DEZG023-ENG – EU Declaration of Conformity – Alpa MOD LED8 PU-Z-026-ENG – Wiring diagram in a star configuration PU-Z-098-ENG – Maximum quantity of Alpa EcoWent XT and Alpa EcoDet XT detectors by cable type PU-Z-106-ENG – Maximum quantity of Alpa EcoTerm XT detectors by cable type PU-Z-074-ENG –...
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Gliwice, 28.05.2019 …............(Name and Signature) Managing Director Aleksander Pachole Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 1/1 DEZG023-ENG R03 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231...
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www.atestgaz.pl Wiring diagram in a star configuration Atest-Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 1/1 Appendix: PU-Z-026-ENG R02 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231 e-mail: contact@atestgaz.pl •...
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www.atestgaz.pl Maximum quantity Alpa EcoWent XT and Alpa EcoDet XT detectors by cable type Open loop configuration Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoWent XT EcoWent XT EcoWent XT Detectors installed 30 m apart Figure 1: Open loop configuration for Alpa EcoWent XT detectors Cross-section of Alpa EcoWent XT Gas Detector a single cable...
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www.atestgaz.pl Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoDet XT EcoDet XT EcoDet XT Detectors installed 30 m apart Figure 2: Open loop configuration for Alpa EcoDet XT detectors Cross-section of Alpa EcoWent XT Gas Detector a single cable System without backup battery supply System with backup battery supply...
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www.atestgaz.pl Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoWent XT EcoWent XT EcoWent XT Alpa Alpa Alpa EcoDet XT EcoDet XT EcoDet XT Detectors sets installed 30 m apart Figure 3: Open loop configuration for sets of Alpa EcoWent XT and Alpa EcoDet XT detectors Cross-section of A set of one Alpa EcoWent XT Gas Detector and one Alpa EcoDet XT Gas Detector a single cable...
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www.atestgaz.pl Closed loop configuration Length L2 [m] Control unit Alpa Alpa Alpa Lenght L1 [m] EcoWent XT EcoWent XT EcoWent XT Detectors installed 30 m apart Figure 4: Closed loop configuration for Alpa EcoWent XT detectors Cross-section of Alpa EcoWent XT Gas Detector a single cable System without backup battery supply System with backup battery supply...
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www.atestgaz.pl Length L2 [m] Control unit Alpa Alpa Alpa Lenght L1 [m] EcoDet XT EcoDet XT EcoDet XT Detectors installed 30 m apart Figure 5: Close loop configuration for Alpa EcoDet XT detectors Cross-section of Alpa EcoDet XT Gas Detector a single cable System without backup battery supply System with backup battery supply...
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www.atestgaz.pl Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoWent XT EcoWent XT EcoWent XT Alpa Alpa Alpa EcoDet XT EcoDet XT EcoDet XT Detestors sets installed 30 m apart Figure 6: Closed loop configuration for sets of Alpa EcoWent XT and Alpa EcoDet XT detectors Cross-section of A set of one Alpa EcoWent XT Gas Detector and one Alpa EcoDet XT Gas Detector a single cable...
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www.atestgaz.pl Star configuration Length L2 [m] Alpa Control EcoDet XT unit Figure 7: Star configuration Cross-section of a System with backup battery supply (U = 20 V) IN(min) single cable One Alpa EcoWent XT Gas Detector One Alpa EcoDet XT Gas Detector conductor at the end of the line at the end of the line...
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www.atestgaz.pl Maximum quantity of Alpa EcoTerm XT detectors by cable type Open loop configuration Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoTerm XT EcoTerm XT EcoTerm XT Detectors installed 30 m apart L1 – distance T-connector of the first detector from the control unit L2 –...
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www.atestgaz.pl Closed loop configuration Length L2 [m] Control unit Alpa Alpa Alpa Length L1 [m] EcoTerm XT EcoTerm XT EcoTerm XT Detectors installed 30 m apart L1 – distance T-connector of the first detector from the control unit L2 – distance T-connector of the last detector from the control unit (also the length of loop return cable) Figure 2: Closed loop configuration for Alpa EcoTerm XT detectors Cross-section of Alpa EcoTerm XT Gas Detector...
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www.atestgaz.pl Star configuration Length L2 [m] Alpa Control EcoTerm XT unit L2 – detector distance from the control unit Figure 3: Star configuration Cross-section of a single System with backup battery supply (U = 20 V) IN(min) cable conductor One Alpa EcoTerm XT Gas Detector at the end of the line L2 [m] 1400 1400...
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www.atestgaz.pl Example of connection cables for gas detector PW-017 and PW-044 with 4-20 mA output Introduction It is recommended that all system components are made according to the design created by person with the necessary skills and competence. Connection cable In case where project does not specify this, you can use the following types of shielded cables for connecting gas detectors: An example of a cable symbol...
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Atest Gaz A. M. Pachole sp. j. Spokojna 3, 44-109 Gliwice tel.: +48 32 238 87 94 fax: +48 32 234 92 71 e-mail: contact@atestgaz.pl For more details on our devices and other products and services offered by us, visit:...
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