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2

– General Introduction

5

LCD Information

Figure 3: LCD Information.

Ref.

Function

See page

A.

Indicator for alarm threshold rising.

B.

Indicator that

Channel 1

is selected. See Figure 2, ref. D.

C.

Digital indicator (measurement value, alarm threshold value, etc.)

D.

Indicator that

Channel 2

is selected. See Figure 2, ref. D.

E.

Percent symbol.

F.

Negative sign.

G.

Indicator for alarm threshold falling.

H.

Symbol indicating level 1 alarm threshold (AL1) activated.

J

Symbol indicating level 2 alarm threshold (AL2) activated.

K.

Time delay after calibration (blocking the relays): the yellow LED blinks
and the icon is displayed.

L.

A

Maintenance key

icon is displayed while the programming and

calibration menu is being used.

View: Internal

Figure 4: Internal view.

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Содержание MX 32

Страница 1: ...Installation and Operating Manual MX 32 2 CHANNEL CONTROLLER SINGLE CHANNEL Reference NPM32GB Revision B 1 The Fixed Gas Detection Experts...

Страница 2: ...ent of Oldham is strictly prohibited The information contained within this manual is true and correct to the best of our knowledge Due to ongoing research and development the specifications of this pr...

Страница 3: ...ont internal 3 View Front 4 LCD Information 5 View Internal 5 Chapter 3 Installation and wiring 7 Mounting the controller 7 Wiring 8 Chapter 4 Operating instructions 13 Displays 13 Navigating the menu...

Страница 4: ...hapter 7 Technical specifications 37 Chapter 8 Particular Specifications 39 Specifications for mechanical and electrical installations in Explosive Zones 39 Metrological specifications 39 Connecting d...

Страница 5: ...hat may result from the reading of this manual Although every effort is made to ensure accuracy this manual may contain unintentional technical inaccuracies On behalf of its clients Oldham reserves th...

Страница 6: ...at has peeled off or become illegible The meanings of these labels are explained below Installation and electrical connections must be performed by a qualified professional according to the manufactur...

Страница 7: ...sensor is displayed on the MX 32 controller and compared to the alarm thresholds In the event that the measurement exceeds the threshold the controller activates the relays which can be used to contr...

Страница 8: ...See page 31 G LEDs for Channel 1 H LEDs for Channel 2 J Removable faceplate also see ref R K LED lights up when the channel is active L Alarm threshold for level 1 LED lights up when the alarm thresh...

Страница 9: ...nnel 2 is selected See Figure 2 ref D 14 E Percent symbol 18 F Negative sign G Indicator for alarm threshold falling 18 H Symbol indicating level 1 alarm threshold AL1 activated 18 J Symbol indicating...

Страница 10: ...for channel 2 sensor 9 M Relay terminal block RL 1 Channel 2 Contacts RCT 250 V AC 2 A Contact status not in alarm mode as defined by J08 ref W 10 N Relay terminal block RL 2 Channel 2 Contacts RCT 25...

Страница 11: ...under surveillance security office control room equipment room etc The central controller cover opens at a 90 angle to the left Make sure to leave adequate space to completely open the cover once the...

Страница 12: ...upply Incorrect installation can lead to measurement errors or system failure all instructions in this manual must be followed carefully to guarantee proper system operation Ground Connection Protecti...

Страница 13: ...on page 11 Protection is provided by fuse F7 2A 250 VAC Figure 4 ref B Measurement Channels The MX 32 controller can be equipped with one or two adjustable and dual measurement channels see Figure 7...

Страница 14: ...connected to the RL1 green terminals on the 12 point connector for each channel card The relay corresponding to alarm 2 is connected to the RL2 grey terminals on the 12 point connector for each chann...

Страница 15: ...Shared fault indicator Fuse or circuit breaker Fuse Contact alarm Channel 2 Contact alarm Channel 1 The AL1 and AL2 relays can be programmed as energized or de energized factory settings The fault re...

Страница 16: ...power is cut off Shared fault indicator Fuse or circuit breaker Fuse Contact alarm Channel 2 Contact alarm Channel 1 The AL1 and AL2 relays can be programmed as energized or de energized factory sett...

Страница 17: ...icators light up Display of current AL2 threshold for channel 1 Simultaneously the AL2 and Fault channel 1 indicators light up Display of current AL1 threshold for channel 2 Simultaneously the AL1 and...

Страница 18: ...g detected is displayed Temporary display of a measurement channel Action or result Illustration Select the channel to be displayed Press to display Channel 1 OR press to display Channel 2 Display of...

Страница 19: ...r manual display Action or result Illustration Display is presented as shown in the illustration seen opposite cyclic display Press AND together The measurements disappear and are replaced by dashes T...

Страница 20: ...the button MENU ENTER Request for access code Note the first number is blinking If there is a response within one minute the unit will return to normal mode Enter the first digit of the code Press to...

Страница 21: ...time to quit the list of menus without activating them Menu Confirmation Action or result Illustration Display the desired menu by following the instructions described in the above paragraph Press MEN...

Страница 22: ...nks indicating Channel 1 has been selected To select Channel 2 press The Channel 2 icon blinks indicating Channel 2 has been selected Confirm the channel to be programmed by pressing MENU ENTER ON bli...

Страница 23: ...its Confirm by pressing MENU ENTER Defining the AL1 alarm threshold The alarm threshold indicator lights up Figure 2 ref F and the screen will display for example increasing alarm AL1 alarm 40 current...

Страница 24: ...ess or to define the 4 digits for the time delay in minutes seconds once the AL1 alarm relay is engaged Confirm the 4 digits by pressing MENU ENTER Example the value 10 20 indicates a delay of 10 minu...

Страница 25: ...he MAN indicator blinks Press or to define the operating mode for the yellow sensor LED MAN no visualization blinking yellow LED by the MX 32 controller of the sensor being calibrated sensor maintenan...

Страница 26: ...22 MX 32 Instruction Manual Return to measurement display Indicating the current measurement If necessary repeat the same procedure for the other channel...

Страница 27: ...r Action or result Illustration The INI indicator blinks Selecting the channel to initialize Press ENTER to confirm The Channel 1 icon blinks indicating Channel 1 has been selected To select Channel 2...

Страница 28: ...n Manual Return to normal measurement display The screen will display the current measurement Important once the settings are completed perform a new calibration for this measurement channel see the f...

Страница 29: ...tion of gas every 3 or 4 months Frequency of gas testing depends on the industrial application in which the sensors are used Inspection should occur frequently during the months following installation...

Страница 30: ...brate by pressing ENTER Display of the current value X0 zero settings The icon is displayed The yellow indicator of the corresponding channel blinks the channel relays are blocked Make sure that the a...

Страница 31: ...the calibration gas adjust the sensitivity by moving the sensitivity potentiometer corresponding to the appropriate channel Figure 4 ref Q for Channel 1 or ref P for Channel 2 Confirm the sensitivity...

Страница 32: ...are blocked Make sure that the air is clean if not using a test kit inject air at the level of the detector at a flow rate of 60 l h then wait for stabilization of the signal If the display is a value...

Страница 33: ...completed the settings at the risk of false triggering Saving calibration Press to select Yes The completed calibration will be saved to select No The changes will be abandoned and the old calibration...

Страница 34: ...first digit blinks Enter the first digit of the new code using the or buttons Confirm the first digit by pressing ENTER Proceed to the next stage for each of the other 3 digits in the code Saving the...

Страница 35: ...On or Off On the buzzer will be activated in the case of alarm or a fault Press OFF the buzzer will not be activated in the case of alarm or a fault Press Press ENTER to confirm Saving the new buzzer...

Страница 36: ...32 MX 32 Instruction Manual...

Страница 37: ...ons in this paragraph are reserved for authorized trained personnel because they may compromise detection reliability If it is necessary to re adjust the sensors this operation must only be completed...

Страница 38: ...n his site Oldham is not responsible for implementing safety procedures Refer to the Menu Initialization paragraphs page 23 Do not forget to complete a system start up after changing the sensor by usi...

Страница 39: ...6 Declaration of Conformity 35 Chapter 6 Technical specifications...

Страница 40: ...36 MX 32 Instruction Manual...

Страница 41: ...idge type explosive sensor 4 20 mA to 2 or 3 fils Measurement simultaneous channel measurement Measurement Ranges Type programmable independently for each channel Number of measurement points continuo...

Страница 42: ...OLC 10 combustible gas detector or 2 OLC 10 TWIN detectors for the detection of methane butane propane in boiler rooms and LPG CNG or H2 in parking lots 1 OLCT 10 combustible gas detector for the det...

Страница 43: ...ment of safety protection and the health of workers exposed to the risks of explosive atmospheres Specifications for mechanical and electrical installations in Explosive Zones All installations must b...

Страница 44: ...e 11 European standard EN 50271 Connecting detectors other than Oldham detectors to the MX 32 controller Any user wishing to use detectors other than Oldham detectors must ensure that they are compati...

Страница 45: ...detector In the case that the user connects a non Oldham brand detector to the MX 32 controller the user must ensure that the transfer curve is compatible with the input characteristics for the contro...

Страница 46: ...42 MX 32 Instruction Manual...

Страница 47: ......

Страница 48: ...dex FRANCE Phone 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Web site http www oldhamgas com AMERICAS Phone 1 713 559 9280 Fax 1 281 292 2860 americas oldhamgas com ASIA PACIFIC Phone 86 21 3127 6373 Fa...

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