USER GUIDE PEL 8K / PEL 8K-M
Contents
1. Factory setting The 0 8000 Pa range is also used for the custom range setting The custom range is 0 8000 Pa as a default The range can be changed by using ML SER tool or by defining the high limit to the Modbus register 40002 the low limit is 0 Pa Selecting the time constant The time constant can be selected with the jumper S1 24v 1 in jon yey A A Time constant selection jumper 2s 8 s S1 ee Factory setting Selecting the output mode The transmitter output can be either pressure linear or flow linear The output mode can be selected with the jumper S5 A Sall AOBA 24v 1 Il AMA 0 al ov at A Output mode selection jumper pressure linear flow linear Factory setting Pd PRODUAL USER GUIDE PEL 8K PEL 8K M measure be sure 3 7 Flow linear output When the flow linear output is selected the transmitter outputs are converted to follow the flow across the measurement area The conversion is made by using square root extraction method See the following figure for the output example in the 0 1000 Pa range AYou V 10 of Pa o 100 200 300 400 500 600 700 800 900 4000 Pressure linear output Flow linear output Z2. ERO POINT CALIBRATION The purpose of the zero point calibration is to remove the possible long term drift The zero point is calibrated automatically every five minutes NOTE The zero point calibration is also executed on the start up and a minute after the start up ML SER TOOL With the ML SER tool you can change the device settings Modbus settings for example Connecting ML SER tool to the device 1 Remove the cover 2 Disconnect the display cable N models 3 Connect the ML SER tool cable to the display connector ae 24V A Oa a A Display connector When the ML SER is successfully connected the pressure measurement value is displayed on the ML SER tool display The connecting can take few seconds Pd PRODUAL measure be sure USER GUIDE PEL 8K PEL 8K M 4 7 ML SER menu The device settings can be changed by using ML SER tool You can proceed in the menu by pressing the M and OK buttons The values can be changed with the and buttons The value is accepted with the OK button The settings are saved when exiting the menu The following menu structure contains the factory settings The Modbus and analogue outputs are disabled when entering the menu for the measuring mode In addition the analogue outputs maintain the same voltage as they were before entering the menu Measuring mode Modbus me
3. PdPRODUAL USER GUIDE PEL 8K PEL 8K M measure be sure V2 0 0 24 10 2014 1 7 COMMISSIONING Mounting The transmitter should be installed above the measuring point to avoid condensation problems The duct overpressure is detected by connecting the measuring point to connector and by leaving the connection open surrounding space pressure Accordingly the duct under pressure is detected by connecting the measuring point to connector and by leaving the connection open Install the measuring hoses carefully so that the hoses don t bend too tightly Too tight curves may prevent the air flow to the sensor The hose length doesn t effect on the measuring accuracy However long hoses generate delay on the measurement Wiring Device wiring and commissioning can only be carried out by qualified professionals Always make the wirings while the power is switched off Caution Modbus RS 485 M models Pd PRODUAL USER GUIDE PEL 8K PEL 8K M measure be sure 2 7 Selecting the measuring range The measuring range can be selected with the jumpers S2 S3 and S4 24v 1 I oi eel A Pressure selection jumpers ay 0 1000 0 1500 0 2000 0 2500 0 3000 0 4000 0 5000 0 8000
4. ad Write Multiple Registers Pd PRODUAL measure be sure USER GUIDE PEL 8K PEL 8K M 7 7 Modbus registers Data type bit unsigned signed Input registers read only Register 30001 Parameter description Pressure measurement Oor1 unsigned integer 0 65535 integer 32768 32767 Data type signed Value 32768 32768 REWE 32768 32768 Pa 30002 Time constant unsigned 0 60 0 60 s 30003 Selected pressure range unsigned 0 7 0 0 1000 Pa 1500 Pa 2000 Pa 2500 Pa 3000 Pa 4000 Pa 5000 Pa 0 8000 Pa custom NOORWNM a a dona a Se OOO 2 30004 Measurement output signed 0 1000 0 100 0 The custom range is 0 8000 Pa as a default The range can be changed by using ML SER tool or by defining the high limit to the Modbus register 40002 the low limit is 0 Pa Holding registers read write Register Parameter description Data type Value Range Default 40001 Not in use signed 7 0 40002 Custom scale high limit signed 1 80 100 8000 Pa 80 40003 Voltage output scale unsigned 0 1 2 0 0 10V 0 1 2 10V 2 0 5V 40004 Current output scale unsigned 0 1 O 4 20 mA 0 1 0 20 mA
5. le 0 10 V 2 10V 4 20 mA 0 20 mA 4 0 5 V M You can change the measurement output scales through the OUTPUT menu Info menu ER s Main menu Version Reset INFO XXX M Software Reset to factory settings version no yes lt The INFO menu can be used for checking the software version and resetting to the factory settings Resetting to the factory settings 1 Press the button for five seconds in the software version display 2 Change the resetting dialog answer to yes 3 Press OK button The factory settings are now reset Pd PRODUAL measure be sure USER GUIDE PEL 8K PEL 8K M 6 7 MODBUS Bus properties Protocol Bus speed Data bits Parity Stop bits Network size RS 485 Modbus RTU 9600 1 9200 38400 57600 bit s 8 none odd even 1 up to 127 devices per segment NOTE The memory durability is 10000 write cycles Bus termination The Modbus can be terminated by placing the Modbus termination jumper A 5 ouT m PO e A Modbus termination jumper Supported Modbus functions 0x01 0x02 0x03 0x04 0x05 0x06 0x0F 0x10 0x17 Read Coils Read Discrete Inputs Read Holding Registers Read Input Registers Write Single Coil Write Single Register Write Multiple Coils Write Multiple Registers Re
6. nu Custom range menu Output menu Info menu Qk 1 127 R g Main menu Modbus ID Baud rate Parity gt COMMUNICATIONS 9 6 kBaud none M Modbus address CR Modbus speed Parity bit OFF 1 127 OFF 9 6 19 2 38 4 57 6 none odd even lt 6R Main menu High limit a RANGE 8000 Pa M Custom range high limit 100 8000 Pa PB BB Main menu Voltage output Ro t output OUTPUT ov 4 20 mA M Voltage output scale Current output scale 0 10 V 2 10 V 4 20 mA 0 20 mA 0 5 V 8 5s R Main menu Version Reset INFO XXX J Software version OR 1 127 Modbus address OFF 1 127 Modbus speed z 9 6 19 2 38 4 57 6 Baud rate 9 6 kBaud Reset to factory settings no yes Parity bit none odd even The Modbus settings can be changed through the COMMUNICATIONS menu USER GUIDE PdPRODUAL PEL 8K PEL 8K M measure be sure 5 7 Custom range menu Main menu CUSTOM RANGE High limit 8000 Pa Custom range high limit 100 8000 Pa The CUSTOM RANGE menu is for setting the custom pressure range high limit The custom range is in use when all the pressure range selection jumpers are placed Output menu Qk Main menu e Voltage output es ae OUTPUT 0 10 V 4 20 m Voltage output scale Current output sca
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