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MDP-1.A/T Control Unit User Manual issue 4W32en

©gazex’2016 v1609

Page 1

/ 16

Warsaw

Control

Unit

Issue 4W32en

[

series

]

BEFORE installation, fully read

the USER MANUAL.

Proceed with installation only after

gaining a full understanding of this

Manual.

For safety reasons during

installation and use of the device, it

is advisable to follow the recommendations and

warnings included in this Manual and marked with the depicted

symbol.

The Manual should be stored for the Gas Detection Systems’

User perusal.

Purpose

p. 2

Technical specifications

Description and assembly

MDP installation within the system

MDP configuration

Launching of the MDP in the system

6.6

PROBLEM ? Useful information

Maintenance/operation

Storing the MDP

PRODUCER:

The gazex logo and name as well as dex, ASBIG, “Aktywny System Bezpieczeństwa Instalacji Gazowej” are registered trademarks of the

GAZEX company.

Work and live SAFER with us !

©gazex

USER MANUAL

Содержание MDP-1.A/ T

Страница 1: ...e Manual should be stored for the Gas Detection Systems User perusal 1 Purpose p 2 2 Technical specifications 4 3 Description and assembly 4 4 MDP installation within the system 6 5 MDP configuration 9 6 Launching of the MDP in the system 13 6 6 PROBLEM Useful information 15 7 Maintenance operation 16 8 Storing the MDP 16 PRODUCER gazex 2016 All rights reserved No part of these pages either text o...

Страница 2: ... MODE Indicates that an alarm has occurred after the alarm has disappeared WITH UPHOLDING MODE maintains active alarm conditions after the alarm source disappears MODE A3 turns off the power supply of the detector with the catalytic sensor which protects against overload NO MEMORY MODE automatically resets the states of inputs and outputs on the front panel after the alarm states disappear SERVICE...

Страница 3: ... T version W22 W21 U1 operation in explosive gas atmosphere of temperature class T4 DEX P4 DEX Pn DEX PnE N DEX PnR DEX F4 DEX nn DEX nn N DEX nE N DEX nR DEX A4 DEX Ann N operation in explosive gas atmosphere of temperature class T6 DEX P6 older versions DEX P DEX P C C2 DEX F6 older versions DEX FA DEX F DEX A6 work outside explosive zones DG P DG PnE N DG PnR DG F DG nn DG nn N DG nE N DG nR DG...

Страница 4: ...oustic signaling Inner buzzer 1Hz intermittent signal A1 alarm signal 5Hz intermittent signal A2 alarm signal 10Hz intermittent signal A3 alarm signal constant signal fault signal optional no signaling SILENT MODE set with the keyboard Zeroing the module using the button on the front panel Event memory internal non volatile 200 recent alarm or fault states or configuration changes Signal blockade ...

Страница 5: ...OL UNIT ppm v v ALARM A1 ALARM A2 ALARM A3 ZASILANIE POWER SERWIS SERVICE SYSTEM NET AWARIA FAULT OK type notice www gazex pl PS PE N L 0V S V DEX P M Siren Lamp SL M 2 DEX F RS 485 1 DG F DG P FTP STP or PU 10 MENU RESET S 2 1 M 03 04 05 06 07 08 09 10 27 26 25 24 23 22 com NO NC ALARM1 ALARM2 MDP 1 A TM LEL A B GND 11 12 13 14 15 S S A2 A1 M 21 20 19 ALARM3 18 17 16 AWARIA com NO NC com NO NC co...

Страница 6: ... output light is on pulsating tone of the inner siren is on A2 ALARM A2 red ALARM A1 and ALARM A2 alarm outputs lights are on only the red ALARM A2 output light is on window detector pulsating tone of the inner siren is on A3 ALARM A3 the detector indicates that the A3 concentration threshold has been exceeded red ALARM A1 ALARM A2 and ALARM A3 alarm output lights are on only the red ALARM A3 outp...

Страница 7: ... as it will go A properly inserted cable cannot be removed from the terminal The cable can be removed by gently pressing the orange button 2 4 3 Cable ends must be prepared in a way which prevents the connectors from having to be wrapped round the module inside the box after they have been placed in the terminals Solid or fine stranded conductors with or without clamping sleeves may be used The ca...

Страница 8: ...which enables switching jumper in ON position an R 120Ω resistor terminating the bus in order to eliminate reflections resulting from the mismatch of bus impedance By default the resistor is disconnected jumper in OFF position CAUTION Only the resistors in the two extreme modules at the opposite ends of the bus must be switched on Leaving more resistors in place increases the load on the bus and m...

Страница 9: ...settings and return the detector to the warm up mode Repeat the steps described in this section to attempt to change the module settings again Caution The above password is the default one assigned to each MDP copy In order to prevent unauthorised access of outside persons to the controller settings the password must be changed individually see section 5 5 5 The new password should be remembered a...

Страница 10: ...ve indicators default setting In this case the unit indicator will not be displayed during measurements e Determination of the measuring range for the measuring detector only The value of the measuring range must be read from the Calibration Certificate of the connected measuring detector The concentration value displayed on the LED screen is scaled from 0 which corresponds to the IS 4mA current v...

Страница 11: ...off This delay can be set in range 3 900 sec option not available when the mode with alarm retention at the outputs is active 5 5 3 nEt Setting the RS485 network parameters a Setting the slave address A 000 zero address means that the communication is off default setting A 001 A 224 correct slave address the communication is on The unique slave address identifies the MDP module in the RS485 indust...

Страница 12: ...ctivated indefinitely A3 alarm maintenance mode with turning off the detector power supply is dedicated only for cooperation between MDP and a measuring detector equipped with a catalytic sensor This mode retains normal mode functionality with alarm memory for concentrations below A3 threshold value If the A3 threshold value is exceeded the alarm maintenance at the module outputs is activated and ...

Страница 13: ...the front panel are signaled in real time detector status output status correctness of power supply and RS485 communication as well as possible activation of special MDP functions a The LED segment display is assigned to indicate the current status of the detector connected to the MDP With the measuring detector connected the current gas concentration value calibrated within the set measuring rang...

Страница 14: ... 6 4 The MDP module operation is done by means of a keyboard located on the front panel During normal operation additional functions are permanently assigned to the keys Pressing and holding for approx 3 seconds causes respectively OK key resetting the module i e restoring the initial settings of MDP registers as in the state after turning on the power supply Resetting deletes the signalling memor...

Страница 15: ...e after switching on the power EFFECT WHY WHAT TO DO After warming up the detector s alarm messages appear on the LED screen for several a few tens of seconds after which the alarms disappear If the DEX is stored for a long time or if the ambient temperature is low the warm up period was shorter than the intended 1 minute for low calibration detectors Press the OK button for a short time while the...

Страница 16: ... off for a period longer than 3 months unusual signs of system operation which have been observed MUST be put down in the enclosed Periodic Inspection Protocol under loss of warranty for the elements of the system penalty and exemption from any liability of the Producer due to System use 7 4 After 10 years from the MDP production date it is essential to replace the internal lithium battery with a ...

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