Table of Contents
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Table of Contents
Summary of Contents for Powelectrics Metron 2
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Page 1: Contents
Metron 2 Technical Manual and Specification Revision 2.0 January 2013 Powelectrics Ltd Sandy Hill Park Sandy Way Tamworth Staffordshire B77 4DU United Kingdom Tel: +44 (0)1827 310 666 Fax: +44 (0)1827 310 999 www.powelectrics.co.uk/metron2 sales@powelectrics.co.uk... -
Page 2: Table Of Contents
Definitions / Glossary ............................6 Part numbers ..............................7 Symbols ................................7 Introduction to the Metron 2 ............................8 How to install, setup and commission the Metron 2 ..................8 Requirements for Technical Support....................... 8 Overview ................................8 Specification ..............................9 Installation instructions ............................ -
Page 3: General Information And Safety
Frequently Asked Questions ......................... 41 Error messages ............................. 43 Other errors ..............................44 General Information and Safety Document Revision History Revision Date Notes V7.1.5.0.9 12/01/2012 Revised to suit latest firmware revision (0.6.0.3) & hardware variations V2.0 7/1/2013 Combined all documents, new revision of user manual ready for print V2.1 21/1/2013 Minor corrections / updates after review... -
Page 4: Proprietary Notice
Powelectrics Ltd. This publication is intended only to assist the reader in the use of the product. Powelectrics Ltd. shall not be liable for any loss or damage arising from the use of any information in this publication, or any error or omission in such information, or any incorrect use of the product. - Page 5 Replacing the Battery The battery used in the Metron2 must be supplied by Powelectrics Ltd. Its warranty will be void if any other battery is used as it may damage the Metron2 or cause it to malfunction. To remove the battery, undo the...
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Page 6: Components Supplied
Modem – This is the part of the Metron 2 that allows external communication (sending of data and text messages). GSM – Global System for Mobile communications – This is the standard that the modem in the Metron 2 uses to communicate. -
Page 7: Part Numbers
4 analogue inputs, integral 3.6 volt battery, 2 relay outputs CPS758 Battery (3.6 volt, 14AH, non-rechargeable) Symbols Symbol What it means Indicates that this is important information and should be adhered to Indicates that this is very useful information and is essential to understand the Metron 2... -
Page 8: Introduction To The Metron 2
Follow strictly the commissioning guidelines (section 4.10) If you are experiencing problems with the Metron 2, please refer to the troubleshooting guides and FAQ. If you still require support, please look at the checklist below (2.2) and contact your distributor, or Powelectrics if purchased directly. -
Page 9: Specification
Internal battery powered with a long life, or external 6 to 24 V DC power source (0.5 amps). Back lit LCD Display, 40 x 40mm, 128 x 128 pixels, to help with on-site setup & diagnosis Quad-band operation ... -
Page 10: Installation Instructions
All dimensions in mm. Open the lid to reveal the 2 mounting holes. These should be used to fasten the Metron 2 down to a baseplate, wall or other surface. To access these two holes, you may have to remove two M12 blanking plugs. These must be replaced. -
Page 11: Electrical Installation
Please note that the battery capacity quoted by the manufacturers is not always fully available to the Metron2. Please consult Powelectrics for advice on how long the battery will last in your application. The current consumption varies depending on the state of the unit. The figures below are based on a power supply between 3.6 to 4.2 volts. - Page 12 Lead acid battery charged alternator or generator for example) and can cause problems. A maximum of a 24V from alternator system is allowed. 3.9V Lithium battery Only use Powelectrics supplied battery. 3.6 – 4V power supply Not recommended. Do not use this method.
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Page 13: Sensor Types And Input Wiring
This is simply a switch – the contact will be supplied with 3.6V from the +V contact. The input will monitor the state of the switch using this wetting voltage. Other – Please contact Powelectrics with any other sensor type 3.2.3 Output wiring... -
Page 14: Sim Cards And Carriers
The two outputs are the two right hand side three way connectors. The internal relays for the outputs are optional and are not supplied in the Metron as standard, though the connectors will still be present. The outputs should not be used for switching high voltages (mains voltages). They are each rated to switch 2A at 30V DC. -
Page 15: Using The Unit And Commissioning
Special fittings for the external antenna The SMA connector that is present on the board usually requires a mating connector that is too large to fit through the standard M12 cable glands that are supplied. We can provide a M12 to M16 gland adaptor that allows fitting of this. - Page 16 Channels Read Now Read Now Info Thresholds Notes Output 1 - 2 State Info Temperature System Get Config / Signal Phone Book Unit Info Intervals GPRS Settings Antenna Carrier Selection SMS Acknowledge SIM Activation GSM Information ENS State Autoconfig Display Errors LCD Orientation Last Transmission Statistics...
- Page 17 ENS is ‘Enhanced Network Services’. This is not normally required and should be left ENS state disabled unless problems with roaming SIMs are found. This allows the ‘autoconfig’ flag in the Powelectrics protocol to be set to on, indicating a Autoconfig configuration is required.
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Page 18: Outline Of Operational Modes
4.2.2 Outline of operational modes There are four modes that can be configured for the Metron 2 to run in – these change how the Metron 2 behaves between transmits and when it is connected to the GSM network. It is configured under the ‘system’... -
Page 19: Transmission Process - Flow Chart
4.2.3 Transmission Process – Flow Chart Both the log and alarm process follow the same process for transmission. The blue diamonds are complete processes that can be found separately. Transmission is Transmission cancelled, error Triggered message displayed Are there any Are there any backup GPRS or SMS GPRS settings? - Page 20 Follow ‘GPRS transmit’ process. GPRS Transmit Process Successful? Apply GPRS settings If GPRS attach is not present, request GPRS attach If GPRS PDP context is not Wait 15 s active, request activation Greater than 300 Is GPRS PDP context seconds requesting active? activation? GPRS Transmit...
- Page 21 Follow ‘SMS transmit’ process. SMS Transmit Process Successful? Build SMS Message and attempt to send Greater than 3 Was the SMS sent attempts sending successfully? SMS? SMS Transmit has not been Are there any other successful numbers to SMS to? GPRS Transmit has been successful...
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Page 22: Meanings Of Icons
Timekeeping The Metron 2 has 3 potential time sources. The first is manual setting of the time – this can be set using the config tool under the tools menu and ‘set clock to PC time’. If you wish to set it using a command (locally or remotely), see the ,0, command in the ‘configuration commands guide’. -
Page 23: Network Selection
upon if many different networks are used. The third method is being set by the GPRS gateway you are connected to.The GPRS gateway will always take priority over other methods if set. Network selection There are two factors that influence the network selection ... -
Page 24: Configuration
The following guide shows the recommended method of configuring the Metron 2, using a computer and USB connection. It is strongly advised to follow this method unless you are very familiar with the Metron 2. 4.8.1 Installation of the config tool and driver... -
Page 25: Using The Config Tool
After loading the config tool, you will be presented with the home screen with the system tab selected. The first thing to do is establish the connection to the Metron 2 by pressing ‘Scan Ports for Metron 2’. If you encounter problems, please refer to the troubleshooting guide. -
Page 26: Input Configuration
Option What it does This is the name of the unit – it should ideally uniquely identify it Unit Name Transmission reference time This is the time of the day that it will synchronise and transmit using. The hours should be entered in the 24 hour format. The unit may take up to 24 hours for the transmit intervals to synchronise to this time. - Page 27 The inputs tab allows each input to be configured as an analogue or digital input. Channels 5 – 9 can only be configured as pulse or digital when there is a pulse count board plugged into the unit. For each type, the parameters are explained on the following pages.
- Page 28 The variables that can be set for the Analogue channels are: Option What it does Excitation voltage The voltage that will be sent to the sensor channel +V connection when the sensor is being read. This can be 3.6V, 5V or 21.6V. Settle time The length of time the sensor is powered before the reading is taken.
- Page 29 In total, there are 10 low thresholds (if the input goes from above a value to below a value) and 10 high thresholds (if the input goes from below a value to above a value). Two of each of these can be programmed without using the ‘Advanced analogue settings’...
- Page 30 Dynamic log intervals allow the rate that transmit and wake-ups occur to change depending on a single threshold. Only threshold number 1 is used from either the high threshold set or the low threshold set. When this threshold is triggered, the values for ‘new transmit interval’ and ‘new wakeup interval’ will be used instead.
- Page 31 Linearisation should be used when the sensor reading against actual measurements is non-linear (for example, the storage containers shape changes area throughout its height)
- Page 32 The variables that can be set for the Digital channels are: Option What it does Threshold voltage, measured in millivolts – the example is 2.5V. On an Threshold expansion port any value other than 0 sets the threshold to 1 (ON) ‘Low to high transition only’...
- Page 33 The variables that can be set for the Pulse channels are: Option What it does ‘Reset’ – when the unit has transmitted the readings, it will reset the pulse count Input type value ‘Continue counting’ – when the unit has transmitted the readings, it will continue on from the current pulse value Prescaler The number of counted pulses is divided by this value.
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Page 34: Output Configuration
Output configuration The outputs can be run in two different modes: 1/ Manual – This is when each output is manually controlled. When in the mode, the only thing you have to set is the name of the output. The output can be controlled by sending the unit a text message: PIN,[output name],ON, Would switch the output on. -
Page 35: Communcations Configuration
1234,[output name],AUTO, Would hand control back over to the threshold rule specified in [reference] if a rule has been configured. When breaching the threshold the relay would be switched on, and then switched off when the alarm clears, following the rules configured for call out delay and hysteresis. The state of the relays can be manually overridden by sending one of the manual control commands, under this circumstance the threshold control is then switched off. - Page 36 Access point name. This should be provided by your SIM card provider. It will not work correctly without this being correct GPRS user name The username that was provided with your SIM card GPRS password The password that was provded with your SIM card Gateway address The web address or IP address of the server that you are attempting to contact.
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Page 37: Driver Issues
4.8.4 Updating the firmware using USB It is possible to update the firmware over USB. Unless there is a unknown bug or a new feature has been released, it is not advised to do this. Please contact Powelectrics for more information. -
Page 38: Important Information
Cell ID, it will send this unique ID as channel 99, via SMS or GPRS. This code can be used to look up the location of the Cell that the Metron 2 is connected to, to give you an idea of its approximate location. -
Page 39: Example Configurations
Example Configurations How to calculate values for sensors Example 1 Four 4 – 20mA sensor, once per day transmit checking every 12 hours Four analogue inputs, each 4-20mA 1234,1,+447111111111, 1234,2,Metron2_demo,12,0,0,359,359,1,0,0,0,0,0,0, 1234,3,1,a,tank1,2,2,litres,0,100,0,0,0,0,0,0,1, 1234,3,2,a,tank2,2,2,litres,0,100,0,0,0,0,0,0,1, 1234,3,3,a,tank3,2,2,litres,0,100,0,0,0,0,0,0,1, 1234,3,4,a,tank4,2,2,litres,0,100,0,0,0,0,0,0,1, Change the phone number in the 1234,1,... command to your own. The unit will power the sensors every 6 hours and send the readings to you. -
Page 40: Example 2
Example 2 4 digital inputs, each volt free contacts 1234,1,+447111111111, 1234,2,Metron2_demo,12,0,0,1439,1,1,0,0,0,0,0,0, 1234,3,1,a,alarm1,1,1, ,0,100,0,20,0,40,0,0,0, 1234,3,2,a,alarm2,1,1, ,0,100,0,20,0,40,0,0,0, 1234,3,3,a,alarm3,1,1, ,0,100,0,20,0,40,0,0,0, 1234,3,4,a,alarm4,1,1, ,0,100,0,20,0,40,0,0,0, 1234,3,1,s,1,1,1,1, 1234,3,2,s,1,1,1,1, 1234,3,3,s,1,1,1,1, 1234,3,4,s,1,1,1,1, Change the phone number in the 1234,1,... command to your own. You can add 3 more numbers if you like by using:- 1234,1,+447111111111, +447111111112, +447111111113, +447111111114, Every minute the device will apply 5 volts to +V for each input (one at a time). -
Page 41: Troubleshooting
Can I fit the Metron2 in an explosive environment? No – the Metron 2 needs to be mounted in a safe area and if you are connecting to sensors in potentially explosive areas you will need to use suitably approved barriers. Please do not proceed unless you understand the regulations surrounding explosive environment and electrical equipment. - Page 42 How do I know that the Metron has received a SMS message? When the Metron 2 receives a text message, a letter icon will appear at the top of the screen followed by a double beep. This double beep indicates if the text message is in a valid format or not by having a higher pitch note first (invalid) or second (valid).
- Page 43 Error messages The messages that the unit can produce Error Details Channel X disabled You have attempted to access a channel that has not been configured. Modem power up failure The modem cannot power up. This may be because of a hardware problem or a power supply issue.
- Page 44 Other errors When trying to diagnose problems, you may find it useful to enable ‘Display Errors’. You can enable this in the menu by going to System -> ‘Display Errors’ and choosing enable. When this is enabled, any problems that are encountered by the modem will be displayed on the screen too.
- Page 45 service provider personalization PIN required can not send photo service provider personalization PUK required corporate personalization PIN required generic undocumented error corporate personalization PUK required wrong state wrong mode unknown context already activated stack already active Illegal MS (#3)* activation failed Illegal ME (#6)* context not opened GPRS service not allowed (#7)*...
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