Table of Contents
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CONTENTS
1. BASIC CHARACTERISTICS OF IRMA SENSOR.........................................................3
1.1. SENSOR'S CONNECTORS.............................................................................................................. 5
1.1.1. Power connector (#1)................................................................................................................. 5
1.1.2. Valves and RS485 connector (#2)............................................................................................. 5
1.1.3. I2C connector (#3)..................................................................................................................... 6
1.1.4. Analogue outputs connector (#4)............................................................................................... 7
1.1.5. Serial interface TTL connector (#5)............................................................................................ 7
1.1.6. Data-logger connector (#6)........................................................................................................ 7
1.2. MADUR.EXE PC PROGRAM............................................................................................................ 8
1.3. ZEROING OF IRMA SENSOR........................................................................................................... 8
1.4. IRMA WORK PHASES...................................................................................................................... 9
1.4.1. Initial phases - Warming............................................................................................................ 9
1.4.2. Initial phases - FirstZeroing....................................................................................................... 9
1.4.3. Essential phases - Ventilation................................................................................................. 10
1.4.4. Essential phase - Infusion....................................................................................................... 10
1.4.5. Essential phases - Measurement............................................................................................ 10
1.4.6. Essential phases - Prestandby and Standby...........................................................................10
IRMA
MANUAL - VERSION 1.0
1/31
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Summary of Contents for Madur IRMA
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Page 1: Table Of Contents
CONTENTS 1. BASIC CHARACTERISTICS OF IRMA SENSOR............3 1.1. SENSOR'S CONNECTORS......................5 1.1.1. Power connector (#1)......................... 5 1.1.2. Valves and RS485 connector (#2)..................... 5 1.1.3. I2C connector (#3)........................6 1.1.4. Analogue outputs connector (#4)....................7 1.1.5. Serial interface TTL connector (#5).................... 7 1.1.6. - Page 2 2.1.1.6. Powering down the sensor when storage is in progress.....................21 2.1.1.7. Turning on the sensor with the SD card in data-logger....................21 2.1.1.8. Formatting a SD card in the IRma sensor........................21 2.1.1.9. Storing measurement data on SD card........................21 2.1.1.10. Possible flash sequences in data-logger module......................22 2.1.1.11.
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Page 3: Basic Characteristics Of Irma Sensor
It has a wide work autonomy. It has implemented few automatic measurement modes that allows to • adjust how the sensor works to owns requirements. IRma is an infra-red sensor – it incorporates a monochromatic spectral line from the near infra-red part of • spectrum. - Page 4 Drawing 1. Block diagram of IRma sensor...
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Page 5: Sensor's Connectors
1.1.1. Power connector (#1) This is where external +24VDC power supply is connected. IRma sensor accepts supply in range 14÷40VDC. It is advised to use nominal supply. Power connector is separable. IRma is provided with matching plug where supply cables can be connected. Sensor's circuit is protected against reverse polarity with a diode. -
Page 6: I2C Connector (#3)
Pin 1 and 2 of the same connector are used for RS485 communication interface – this interface is an optional equipment. Drawing 3. Valves' control circuit incorporated in IRma sensor 1.1.3. C connector (#3) C connector allows to connect external equipment to the sensor that is controlled via I C bus, i.e. -
Page 7: Analogue Outputs Connector (#4)
1.1.5. Serial interface TTL connector (#5) Serial interface connector allows to communicate with sensor in digital form (with help of madur.exe PC program) but also allows to program microprocessor's memory (firmware upgrade). Communication is performed at TTL levels. To connect sensor to PC a special adapter is required (available from madur). Connector provides #PSEN terminal that allows to set micro-controller in the programmable mode –... -
Page 8: Madur.exe Pc Program
1.3. Zeroing of IRma sensor As any other electronic measurement device, IRma sensor is a subject to a various drifts – mainly thermal and time drifts. Sensor is equipped with temperature sensor that allows to compensate the effect of temperature changes to the measurements. -
Page 9: Irma Work Phases
Valves, pump control and analogue outputs act as they were programmed to behave during “Warming” phase in PC program. REMARK: User can change the time for the “Warming” phase via madur.exe program. However it is not advised as it can disturb sensor's thermal compensation and in consequence, demote measurement quality. -
Page 10: Essential Phases - Ventilation
During this phase no usable measurements are performed, but sensor measures and shows the results on the display. “Ventilation” time is set in the PC program madur.exe. By default it is set to 15 minutes. It is advised not to set it below 5 min. -
Page 11: Irma Work Modes
1.5. IRma work modes IRma sensor can work according to several predefined programs. Those automatic programs are called work modes. There are available: Cyclic measurements • Measurements according to scheduler • Measurements triggered by a digital input • Monthly-cyclic mode •... -
Page 12: Cyclic Mode (Regular) - Behaviour Of The Unit After Turning On
See what the work cycles looks like if the sensor with default settings is turned on at 3 o'clock (H0). The measurements are interrupted with the next, planned cycle H2 (starting with ventilation phase). Then it works as planned: →H3→H4→H1→H2... IRMA 12/31 MANUAL – VERSION 1.0... -
Page 13: Cyclic Mode (Regular) - Unit's Behaviour At Midnight
24 measurement cycles. Each of the cycle's beginning point is defined individually. Measurements according to scheduler are defined by the below parameters (they can be set via madur.exe program): Cycle activation table – informs which of the cycles (H1..H24) are to be performed •... -
Page 14: Measurements According To Scheduler - Behaviour Of Unit After Turning On
For the measurements triggered by a digital input there are no predefined beginning points of the cycles. The beginning of each of the cycles is triggered from the outside with help of any of the digital inputs In1..In4. IRMA 14/31... -
Page 15: Measurements Triggered By A Digital Input - Behaviour Of Unit After Turning On
The rising slope appearing on the active input is the trigger. The disconnected (floating) input is treated as remaining in a high state. Measurements triggered by a digital input has following parameters (all the parameters can be set via madur.exe program): Activation of triggering inputs –... -
Page 16: Measurements Triggered By A Digital Input - Behaviour Of Unit At Midnight
(1..30). Monthly-cyclic mode with adjustable length has the below parameters (all of them set via madur.exe program): First zeroing date (DD/MM/YY) – defines the calendar date the first zeroing is to be performed. From •... -
Page 17: Monthly-Cyclic Mode With Adjustable Length - Behaviour Of Unit After Turning On
Long-term work modes, especially with long cycle times, result in long between-zeroing times. That can lower the measurements accuracy. In order to obtain high measurement accuracy it is advised to avoid long-term work modes. IRMA 17/31 MANUAL – VERSION 1.0... -
Page 18: Additional Equipment Of Irma Sensor
ADDITIONAL EQUIPMENT OF IRMA SENSOR 2.1. Data-logger Data-logger module is presented in the picture below. It is connected to the Micro-Match 10-pin male connector. Data-logger stores measured results onto full size SD card. It is equipped with blue LED and monostable button. - Page 19 Drawing 12. Mounting openings in the panel Drawing 13. Data-logger mounting IRMA 19/31 MANUAL – VERSION 1.0...
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Page 20: Type Of Acceptable Sd Cards
FAT16 file system is applied with maximal cluster size = 64kB. For this reason the card's maximum capacity is 4GB. REMARK: It is possible to use SD cards larger than 4GB, but then such cards must be formatted in IRma sensor. Sensor formats >4GB cards using FAT16 file system. The area above 4GB stays unused. -
Page 21: Powering Down The Sensor When Storage Is In Progress
If, for any reason, formatting fails, data-logger LED flashes in slow rhythm – a different SD card should be used. 2.1.1.9. Storing measurement data on SD card Data is stored on SD card as binary file. The files format and their content is presented in the manual „IRMA saving measurement data on SD card”. IRMA 21/31... -
Page 22: Possible Flash Sequences In Data-Logger Module
No free memory in file allocation table Remove the redundant files (or move them to sub-folders) → lower the (>512 files stored in main folder) amount of files in the main folder Incompatible SD card type Use different card IRMA 22/31 MANUAL – VERSION 1.0... -
Page 23: Led Display
The used LED display is 5-position, 7-segment red display. It has a cable with a plug matching the I C connector (connector #3). Display is used for results and presentation of the sensor's cycle phase. Drawing 14. LED display – front and top views IRMA 23/31 MANUAL – VERSION 1.0... -
Page 24: Lcd
The used LCD is 4.5-position, 7-segment display with no backlight. The display has a cable with a connector matching I C connector (connector #3). Display is used for results and sensor's cycle phase presentation. IRMA 24/31 MANUAL – VERSION 1.0... -
Page 25: Work Knob
C connector (connector #3). It has a cable with a plug. Knob allows to put the sensor into specific work mode without the use of PC program madur.exe. With the knob, user can decide when to zero the sensor and how long the measurements should last. It is always possible to return to the automatic mode programmed in the sensor. -
Page 26: Position "Ventilation
Solenoid valve, gas pump and analogue outputs behave as they were programmed to behave during standby. During “Ventilation” phase sensor does not perform gas measurements. Display shows dash “–“ in the lowest digit. Results are stored to SD card (if this option is enabled). IRMA 26/31 MANUAL – VERSION 1.0... -
Page 27: Position "Measurement
3 seconds. Temporary change of the knob's position and an immediate return to the previous setting will not effect in change of sensor's behaviour. IRMA 27/31 MANUAL – VERSION 1.0... -
Page 28: Work Knob Montage
2.4.1.7. Work knob montage Drawing 19. Work knob – mounting Drawing 20. Work knob – mounting openings IRMA 28/31 MANUAL – VERSION 1.0... -
Page 29: Adapter Usb↔Serial Ttl To Program Sensor's Processor
Drawing 21. Adapter USB – serial TTL – front and side view Adapter allows to communicate with sensor from madur.exe program, but also to program the micro-controller to exchange the sensor's firmware. The adapter should be connected to the sensor's TTL serial interface (connector #5). - Page 30 The button can be released when the diode on the installation cable blinks (usually right after the sensor is power on). In Windows device manager (in port section) verify what COM port has been assigned to the installation cable. Start the WSD program. Press Configuration button. IRMA 30/31 MANUAL – VERSION 1.0...
- Page 31 Drawing 24. The Configuration window of WSD program – the following steps have been marked 11. REMARK: make sure the option Erase CODE ONLY is selected (otherwise all the sensor's setting will be irreversibly removed and the device will have to be repaired at madur's). 12. Confirm the chosen settings with OK button.
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