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PCE Instruments
Aeroqual Series 900 User Guide
Spain
Chile
PCE Ibérica S.L.
PCE Instruments Chile SA
CIF B02363497
RUT 76.154.057-2
Calle Mayor, 53
Calle Santos Dumont N° 738, Local 4
02500 Tobarra
Comuna de Recoleta
Albacete
Santiago de Chile
Spain
Chile
Tel.: +34 967 543 548
Tel. : +56 2 2405 3238
Fax: +56 2 2873 3777
Fax: +34 967 543 542
info@pce-instruments.cl
info@pce-iberica.es
www.pce-instruments.com/chile
www.pce-instruments.com/espanol
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Table of Contents
Related Manuals for PCE Instruments Aeroqual 900 Series
Summary of Contents for PCE Instruments Aeroqual 900 Series
- Page 1 Spain Chile PCE Ibérica S.L. PCE Instruments Chile SA CIF B02363497 RUT 76.154.057-2 Calle Mayor, 53 Calle Santos Dumont N° 738, Local 4 PCE Instruments 02500 Tobarra Comuna de Recoleta Albacete Santiago de Chile Spain Chile Tel.: +34 967 543 548 Tel.
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Page 2: Table Of Contents
Contents Description ............................. 3 1.1. S930 Components ........................3 1.2. Components not supplied but required ................... 3 Configuration ..........................3 2.1. Using the Aeroqual USB to RS485 converter ................. 3 2.2. Configuring the S930 using the PC software ................4 2.2.1. -
Page 3: Description
1. Description The Aeroqual Series 930 Fixed Gas Monitor is designed to measure and control gas concentrations and to communicate to a variety of hardware systems. The monitor can operate as a relay controller with user controlled set points, a 4-20 mA gas transmitter as well as communicate via RS485 on a network. -
Page 4: Configuring The S930 Using The Pc Software
2.2. Configuring the S930 using the PC software a. Plug in and install the USB to RS485 converter into your computer b. Wire the RS485 outputs into the instrument using table above c. Install the Aeroqual Fixed Monitor Configuration PC software d. -
Page 5: 4-20Ma Output Scale
2.2.4. 4-20mA output scale The 4-20mA output scale sets the gas concentration scale. Each sensor head type has a default setting but the user can modify this by clicking the user define button and entering the required value that corresponds to 20mA. 2.2.5. -
Page 6: Operation As A Relay Controller
3.2. Operation as a Relay Controller The S930 has a set of integrated relay contacts which can be used to operate the instrument as a simple relay controller. The relays need to be wired into the instrument using the relevant alarm or control outputs, which are open collector current sinks. -
Page 7: Procedure
3.3.1. Procedure a. Connect the 4-20mA loop on the screw connector to the power supply and current measuring device (e.g. PLC) ensuring the polarity is correct. Please refer to the diagrams below. Note: If the polarity is incorrect the 4-20mA output may be permanently damaged b. -
Page 8: Operation As A Rs485 Transmitter
4-20 mA wiring diagram for Loop with integrated display 4-20mA Power Supply Integrated Display External Device 24VDC Note: The integrated display is a single ended device and therefore always needs to be located at the end of the loop. 3.4. Operation as a RS485 Transmitter The Series 930 unit can communicate over a RS485 bus. -
Page 9: S930 Specifications
ID Settings Monitors on the network require unique IDs so they can be distinguished on the RS485 network. The factory default ID of the units is ID 1. Therefore they will need to be changed to unique IDs. Use the Configuration PC software to change the IDs. -
Page 10: Troubleshooting
6. Troubleshooting Fault Description Possible Cause Remedy Power connection broken Reconnect power cable No Power Power supply failure Replace 24V power supply S930 damaged Replace unit RS485/RS232 adaptor faulty Reconfigure/replace adaptor Connections broken Reconnect leads RS485 communications ID incorrect Check ID unstable Noise on cable Use shielded twisted pair cable... -
Page 11: Diagnostics
Zero calibration incorrect Zero calibrate sensor Span calibration incorrect Span calibrate sensor Sensor inlet contaminated Clean sensor inlet filter and mesh Sensor showing lower Interference gas present Move sensor to clean environment and than expected reading in check reading upon exposure to know the presence of sensor concentration of gas Gas reactive and decomposing... - Page 12 * BASE - information request data stream header * COMMAND - 1 byte network unit action command * NETWORK_ID - 1 byte 930 network ID. * OTHERS - may used to extend functions later, it can be left as empty for now * CHECKSUM - makes the data stream total sum byte value to zero.
- Page 13 03. Specific 930 reset command. The command will reset the 930 at any time. Command: BASE, RESET, NETWORK_ID, EMPTY, CHECKSUM Reply: SENSOR, RESET, NETWORK_ID, DATA1, DATA2, RESERVED, STATUS1, STATUS2, CHECKSUM * DATA1 and DATA2 - no meanings. * RESET - 1 byte reset command, see section 4 for details. 04.
- Page 14 * ALARM2 - 4 bytes alarm level 2 set point value, see section 4 for its data representation. * DEFINED_SCALE - 4 bytes user defined max output scale value. * CONTROL_HIGH - 4 bytes control high set point value see section 4 for its data representation.
- Page 15 Section 3 Broadcast commands are a set of special commands of the network system. Every unit that receives the commands on the network performs the action. They are not ID specific, BROADCAST command indicator can be considered as NETWORK_ID. These commands send out by network master and that don't need reply at all.
- Page 16 STATUS1 (1 Byte) SensorStatus0 b0 \ b1=0, b0=0, sensor is normal, SensorStatus1 b1 / b1=0, b0=1, sensor failure no gas reporting b1=1, b0=0, means sensor aging, FAN_STATUS reserved UNIT_UNSTABLE_FLAG sensor head is at setting up stage not stable yet RESERVED reserved RESERVED reserved...
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Page 17: Care And Maintenance
Section 5 Data transfer mechanism 1. Floating point data (4 bytes) send sequence is low byte first, high byte last, such as section 4's data DATA1, ALARM1, ALARM2 etc. 2. Broadcast command - when network master broadcast a command to RS485 bus, every unit connected to the bus has to perform the action immediately without reply. -
Page 18: Appendix
10. Appendix 10.1. Copyright Copyright Aeroqual Limited. All rights reserved. Reproduction, transfer, distribution or storage of part or all of the contents of this document in any form without the prior written permission of Aeroqual Limited is prohibited. “Aeroqual” is a registered trademark of Aeroqual Limited. Other product and company names mentioned herein may also be trademarks or trade names. - Page 19 guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ...
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