Madur IRMA User manual

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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. Valve and RS485 connector (#2)............................................................................................. 5
1.1.3. I2C connector (#3)..................................................................................................................... 6
1.1.4. Analogue output 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 pha e – Warming............................................................................................................ 9
1.4.2. Initial pha e – Fir tZeroing....................................................................................................... 9
1.4.3. E ential pha e – Ventilation................................................................................................. 10
1.4.4. E ential pha e – Infu ion....................................................................................................... 10
1.4.5. E ential pha e – Mea urement............................................................................................ 10
1.4.6. E ential pha e – Pre tandby and Standby...........................................................................10
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1.5. IRMA WORK MODES...................................................................................................................... 11
1.5.1. Work cycle................................................................................................................................ 11
1.5.2. Cyclic mea urement ............................................................................................................... 11
1.5.2.1. Cyclic mode (regular) – behaviour of the unit after turning on....................................................................................12
1.5.2.2. Cyclic mode (regular) – unit' behaviour at midnight..................................................................................................13
1.5.3. Mea urement according to cheduler....................................................................................13
1.5.3.1. Mea urement according to cheduler – behaviour of unit after turning on...............................................................14
1.5.3.2. Mea urement according to cheduler – behaviour of unit at midnight......................................................................14
1.5.4. Mea urement triggered by a digital input...............................................................................14
1.5.4.1. Mea urement triggered by a digital input – behaviour of unit after turning on..........................................................15
1.5.4.2. Mea urement triggered by a digital input – behaviour of unit at midnight.................................................................16
1.5.5. Monthly-cyclic mode................................................................................................................ 16
1.5.5.1. Monthly-cyclic mode – behaviour of unit after turning on............................................................................................16
1.5.5.2. Monthly-cyclic mode – behaviour of unit in the different-length month .....................................................................16
1.5.6. Monthly-cyclic mode with adju table length (1-30 day )..........................................................16
1.5.6.1. Monthly-cyclic mode with adju table length – behaviour of unit after turning on........................................................17
1.6. RESTRICTIONS WHEN USING LONG-TERM WORK MODES.....................................................17
2. ADDITIONAL EQUIPMENT OF IRMA SENSOR.........................................................18
2.1. DATA-LOGGER............................................................................................................................... 18
2.1.1.1. Type of acceptable SD card .......................................................................................................................................20
2.1.1.2. Card' file y tem and maximum memory capacity....................................................................................................20
2.1.1.3. Starting/ topping torage to SD card..........................................................................................................................20
2.1.1.4. In erting SD card into data-logger...............................................................................................................................20
2.1.1.5. Ejecting the SD card from data-logger........................................................................................................................20
2.1.1.6. Powering down the en or when torage i in progre .............................................................................................21
2.1.1.7. Turning on the en or with the SD card in data-logger...............................................................................................21
2.1.1.8. Formatting a SD card in the IRma en or...................................................................................................................21
2.1.1.9. Storing mea urement data on SD card.......................................................................................................................21
2.1.1.10. Po ible fla h equence in data-logger module......................................................................................................22
2.1.1.11. SD card error ............................................................................................................................................................22
2.2. LED DISPLAY.................................................................................................................................. 23
2.3. LCD.................................................................................................................................................. 24
2.4. WORK KNOB................................................................................................................................... 25
2.4.1.1. Po ition “Ventilation”....................................................................................................................................................26
2.4.1.2. Po ition “Standby”.......................................................................................................................................................26
2.4.1.3. Po ition “Mea urement”..............................................................................................................................................27
2.4.1.4. Po ition “Auto”.............................................................................................................................................................27
2.4.1.5. Sen or' behaviour with work knob after power up.....................................................................................................27
2.4.1.6. Changing the knob' po ition......................................................................................................................................27
2.4.1.7. Work knob montage.....................................................................................................................................................28
2.5. ADAPTER USB↔SERIAL TTL TO PROGRAM SENSOR'S PROCESSOR....................................29
3. LOADING NEW FIRMWARE TO SENSOR'S MEMORY.............................................29
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MANUAL – VERSION 1.0 2/31

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1. BASIC CHARACTERISTICS OF IRMA SENSOR
•IRma i an optical en or for ga detection.
•It ha a wide work autonomy. It ha implemented few automatic mea urement mode that allow to
adju t how the en or work to own requirement .
•IRma i an infra-red en or – it incorporate a monochromatic pectral line from the near infra-red part of
pectrum.
•It i produced a one channel en or. Optionally it can be prepared in two-channel ver ion.
•It i factory calibrated – multipoint calibration with reference ga e – what provide high accuracy of
mea urement re ult .
•It ha built-in temperature en or. It i al o thermally calibrated (al o multipoint temperature calibration)
what provide preci e compen ation for thermal drift.
•It can optionally be equipped with atmo pheric pre ure en or that provide compen ation for the
change of pre ure.
•It ha one current analogue output (0/4÷20mA) and one voltage analogue output (0÷5/10V). Output'
re olution i 12bit .
•It ha two trong “open-drain” type output that allow to teer external load like pump , valve , relay ,
etc.
•It require +24VDC upply. It accept upply in range 14÷40VDC
•It ha four digital input that allow to control the en or' work
•It ha four digital output that can ignali e the current mea urement tatu and/or control external
device .
•It ha PWM output with TTL ignal level that can be u ed for e.g. teering the internal ga pump
•It ha a built-in RTC clock with calendar. RTC ha a replaceable battery that provide clock'
uninterrupted work even at power decay.
•It ha built-in erial interface with TTL ignal level that allow to read the re ult in digital form and/or to
adju t en or' etting from madur.exe PC program and to upgrade en or' firmware.
•Optionally it can be equipped with RS485 level interface and MODBUS communication that allow to
imultaneou ly connect everal en or to a common communication bu .
•It allow to connect data-logger for con tant torage of mea urement re ult . Thi optional data-logger
incorporate full ize SD card .
•It ha 4-pin connector to connect external device with I2C bu .
•It can be optionally be equipped with 4.5 digit LCD without di play (digit height 12mm) and/or with red
LED di play (with digit height 25mm – vi ible from long di tance ). Di play i connected via I2C bu .
Di play are optional equipment.
•It can be quipped with optional work mode knob that allow to manually elect the work pha e (manual
override over programmed mode )
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Drawing 1. Block diagram of IRma sensor

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1.1. Sensor's connectors
Layout of all the connector of IRma en or, CHF3 ver ion are howed in Drawing 1.
Pin layout i pre ented in the Table 1.
Drawing 2. Connectors on IRma board
Signature on the drawing
1. Power connector (#1)
2. Valve and RS485 connector (#2)
3. I2C connector (#3)
4. Analogue output connector (#4)
5. Serial interface TTL connector (#5)
6. Data-logger connector (#6)
1.1.1. Power connector (#1)
Thi i where external +24VDC power upply i connected. IRma en or accept upply in range 14÷40VDC. It i
advi ed to u e nominal upply. Power connector i eparable. IRma i provided with matching plug where upply
cable can be connected. Sen or' circuit i protected again t rever e polarity with a diode.
Sen or' power con umption (without the additional equipment), at +24VDC upply voltage doe not exceed
100mA.
It i advi ed to u e tabili ed power upplie with power efficiency not lower than 2000mA.
1.1.2. Valves and RS485 connector (#2)
Valve connector allow to connect external device of higher power con umption, i.e. electromagnetic valve .
Thi connector al o allow to connect RS-485 communication interface.
Below we pre ent a diagram of control circuit of valve connected to connector (#2). Steering tran i tor work in
“open drain” mode. Connector' terminal al o contain upply (+12V or +24VDC), that can be incorporated to
power the connected valve . Supply connector are, by default, et to +12VDC. Suppre ion diode allow to
connect inductive load .
The maximal current that can be con umed from valve connector (+12V or +24V pin ) i 500mA (in total for both
upply pin ).
The maximal current that the control tran i tor accept i 1A (for each tran i tor).
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The maximal voltage that control tran i tor turn off i 30V.
If the connected load i inductive and doe not incorporate upply +12V/+24V it i nece ary to provide eternal
uppre ion diode or/and uppre ion capacitor .
Pin 1 and 2 of the ame connector are u ed for RS485 communication interface – thi interface i an optional
equipment.
Drawing 3. Valves' control circuit incor orated in IRma sensor
1.1.3. I2C connector (#3)
I2C connector allow to connect external equipment to the en or that i controlled via I 2C bu , i.e. LED di play
or/and LCD di play or/and work knob. De cription of the additional equipment can be found in the annexe to thi
manual. Connector allow to connect up to 4 additional equipment . Connector along the I2C bu provide +12V
upply for the connected module .
The following module are connected parallel to connector #3.
The maximal current that can con umed from I2C connector (from +12V pin) i 500mA.
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1.1.4. Analo ue outputs connector (#4)
Analogue output connector provide both channel of analogue output , i.e. current output and voltage one.
Analogue output' GND i at the ame potential a upply' GND.
The minimal re i tance that can load the voltage output U1 i 1.000 Ω (for range 0÷5V) or 10.000 Ω (for range
0÷10V).
The maximal re i tance that can load the current output I1 i 300 Ω.
1.1.5. Serial interface TTL connector (#5)
Serial interface connector allow to communicate with en or in digital form (with help of madur.exe PC program)
but al o allow to program microproce or' memory (firmware upgrade). Communication i performed at TTL
level . To connect en or to PC a pecial adapter i required (available from madur). Connector provide #PSEN
terminal that allow to et micro-controller in the programmable mode – thi pin hould be hort-circuit to GND
when en or i powered on.
Detailed in truction on firmware upgrade i provided in the chapter Loading new firmware to sensor's memory.
1.1.6. Data-lo er connector (#6)
Connector allow to connect optional data-logger module available from madur. Connector provide all the
ignal required by data-logger including +5V upply. Data-logger i delivered with ribbon cable and a plug
matching connector #6.
Table 1. Pin layout for each connector.
# Dr wing Pin l yout Connector type
1
1. +24VDC – upply (input)
2. GND – upply ground
Phoenix Contact:
MSTBVA 2,5/2-G-5.08
MSTB 2,5/ 2-ST-5,08
2
1. RS485 A
2. RS485 B
3. Valve 2 “-“ – open drain output
4. +12VDC (or +24VDC) – output
5. Valve 1 “-“ – open drain output
6. +12VDC (or +24VDC) – output
Phoenix Contact:
3 x MKDS 1/ 2-3,81
3
1. +12V – output
2. SDA – I2C
3. SCL – I2C
4. GND
Phoenix Contact:
MCV 1,5/ 4-G-3,5
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4
1. I1 “+” – I1 analogue output
2. GND
3. U1 “+” – U1 analogue output
4. GND
Phoenix Contact:
2 x MKDS 1/ 2-3,81
5
1. RxD TTL – data input
2. TxD TTL – data output
3. GND
4. #PSEN
Micromatch 4
6
1. MOSI
2. VCC (+5V)
3. MISO
4. LEDMMC
5. SCLOCK
6. SWITCHMMC
7. CSLOG
8. ISLOG
9. GND
10. GND
Micromatch 10
1.2. madur.exe PC pro ram
madur.exe i PC program that work in Micro oft Window operating y tem . It i provided by madur,
free-of-charge with every delivered en or. Program i not e ential to work with the en or after it in tallation,
but it help in comfortable adju tment of en or' etting or in diagno ing of en or' tatu . Detailed de cription
of program' function can be found in a eparate manual.
1.3. Zeroin of IRma sensor
A any other electronic mea urement device, IRma en or i a ubject to a variou drift – mainly thermal and
time drift . Sen or i equipped with temperature en or that allow to compen ate the effect of temperature
change to the mea urement . Time drift derive mainly from the phy ical change of the en or' optical
y tem. Time drift are removed with the zeroing proce .
Zeroing con i t in thorough ventilation of en or' ga path with neutral ga (clean ambient air, nitrogen, etc.)
and later in noting the ignal level to the corre ponding mea ured zero ga . It i advi ed to ventilate the en or
for at lea t 5 minute .
To minimi e the time drift effect it i advi ed to zero the en or a often a po ible.
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1.4. IRma work phases
The e are the work pha e IRma en or can be in:
1. Initial pha e , occur ju t one time, after the en or i powered on:
•“Warming” pha e – initial warming up of en or' electronic
•“Fir tZeroing” pha e – the initial zeroing of en or
2. E ential pha e , occur in all work cycle :
•“Ventilation” pha e – zeroing en or with the neutral ga
•“Mea urement” pha e – actual mea urement
•“Standby” pha e – en or re ting
1.4.1. Initial phases – Warmin
“Warming” pha e occur right after en or i powered on. Sen or perform initial te t of it tatu and wait for
the y tem temperature to tabili e. During thi pha e no u able mea urement are performed. Time for
“Warming” pha e i adju table from the PC program. Madur et thi time to 30 minute .
Di play, on each egment, perform te t and then for hort period how the firmware ver ion of the en or in
format x.y.z. During the re t of the “Warming” di play egment how da he .
Valve , pump control and analogue output act a they were programmed to behave during “Warming” pha e in
PC program.
REMARK: U er can change the time for the “Warming” pha e via madur.exe program. However it i not advi ed
a it can di turb en or' thermal compen ation and in con equence, demote mea urement quality.
1.4.2. Initial phases – FirstZeroin
“Fir tZeroing” pha e occur directly after “Warming”. During thi pha e en or mu t be provided with neutral ga
a it perform zeroing. During thi pha e no u able mea urement are performed, but en or mea ure and
how the re ult on the di play. Value on di play fla h. Time of “Fir tZeroing” pha e i the ame a for
“Ventilation” pha e and it i adju table from the PC program. Madur et thi time to 15 minute .
Valve , pump control and analogue output act a they were programmed to behave during “Ventilation” pha e in
PC program.
Storage to SD card i performed, if thi option i enabled.
REMARK: U er can change the time of “Fir tZeroing” pha e by changing the length of the ”Ventilation” pha e in
the PC program. It i advi ed not to horten thi time below 5 minute – in ca e there i a ub tantial dead
volume connected to the en or that may not be ventilated properly, and in con equence may cau e inaccurate
mea urement .
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1.4.3. Essential phases – Ventilation
“Ventilation” pha e tart each mea urement cycle. During “Ventilation” en or i provided with neutral ga and
perform zeroing. During thi pha e no u able mea urement are performed, but en or mea ure and how
the re ult on the di play. “Ventilation” time i et in the PC program madur.exe. By default it i et to 15 minute .
It i advi ed not to et it below 5 min.
Valve , pump control and analogue output act a they were programmed to behave during “Ventilation” pha e in
PC program.
REMARK: The fir t work cycle that occur after the initial pha e (after en or i powered on) doe not tart with
“Ventilation” pha e but at once with the “Mea urement” pha e. It i becau e zeroing of en or wa ju t performed
during the “Fir tZeroing” pha e.
1.4.4. Essential phase – Infusion
The “Infu ion” pha e precede directly the “Mea urement ”. During infu ion the en or i upplied with
mea urement ga and perform mea urement but due to the delay cau ed by the ga cour e and the en or'
reaction time the mea urement re ult can be underrated. Di play behaviour i identical to “Ventilation” pha e.
Duration of infu ion i con tant and equal 1 minute.
1.4.5. Essential phases – Measurement
“Mea urement” i the main pha e for every work cycle. It occur right after the “Ventilation”. During thi pha e,
en or i provided with the mea ured ga and perform u able mea urement . Re ult are pre ented on di play.
Time of the “Mea urement” pha e depend on the elected work mode and can la t from a dozen of minute up
to 31 day . Thi time i adju table from madur.exe PC program. By default it i et to 6 hour .
Valve , pump control and analogue output act a they were programmed to behave during “Mea urement”
pha e in PC program.
Storage to SD card i performed, if thi option i enabled.
1.4.6. Essential phases – Prestandby and Standby
“Pre tandby” and a follow-up “Standby” pha e occur after every “Mea urement” pha e if the “Mea urement”
pha e ha fini hed, but a new work cycle ha not yet tarted. Tho e pha e may not occur at all. Purpo e of
“Pre tandby” pha e i to ventilate ga channel and remove any re idue of mea ure ga . Thi pha e la t for two
minute and i not adju table.
“Standby” occur directly after “Pre tandby” and i when en or imply re t. “Standby” time i not defined, en or
tay in thi pha e until a new work cycle begin .
During the e pha e no u able mea urement are performed, di play how a ingle da h.
Valve , pump control and analogue output act a they were programmed to behave individually during “Standby”
and “Pre tandby” pha e .
Storage to SD card i performed, if thi option i enabled.
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