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INST No. INE-403-0P0

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1.1 Summary

The infrared moisture meter IR-M2

series is designed as a fiber optic moisture meter for

on- line  moisture meter  utilizing infrared absorption of moisture, and it consists of a detector
unit, a fiber optics, a setting display unit and accessories.
The detector unit is provided with  99  built- in calibration curves to output  linear analog
signals according to the moisture.
Since the detector unit provides keys, digital displays and communications function, it can be
used as a single unit or combined with a personal computer.
Two kinds of  fiber optics,  reflective  type and transparent type, are available. The reflective
type fiber optics is for moisture measurement in powder state or in sheet state objects and the
transparent type  fiber optics is for moisture measurement in liquids  by  combining  with  a
measuring cell for liquids.
Up to 9 detector unit can be connected with the setting display unit which can set various
parameters of the detector unit

and displays the moisture value digitally.

Accessories including cables and output checker plate are available for various applications.
This manual describes about the  detector unit, the fiber optics (reflective type and transparent
type), the measuring cell for liquids and accessories.
For the setting display unit, refer to a separate instruction manual for it.

1.2 Configuration

1. General

C H

D

ATA

Transparent type fiber optics

IR- WCT

Reflective type fiber opticswith lens attachment IR- WCRE

Reflective type fiber optics IR- WCRN

Measuring

cell for liquids

IR- WCC1

Detector:Model for IR- M2

Analog output

IR- WERT

(connection

cable)

24V DC

IR-WEP

(power supply unit)

IR- GMEG1
(setting display unit)

Optical

fiber

RS- 485

Communication and

Analog output

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Содержание IR-M21 SERIES

Страница 1: ...E 403 0P0 IR M2 Series INFRARED MOISTURE METER DESIGNED AS A FIBER OPTIC Model IR M21 IR M22 Please be sure to deliver these instructions with the unit to the end user Always keep these instruction with the unit ...

Страница 2: ...ithout fail for using this instrument correctly and safely and also preventing troubles in advance 1 For the contents of this manual alteration is reserved without notice in the future 2 This manual has been prepared by making assurance doubly sure about its contents However if any question arises or if any error an omission or other deficiencies were found please inform your nearest CHINO s sales...

Страница 3: ...otective functions Don t operate this unit if the protective grounding fuse or other protective functions seem to be defective Check the protective functions for defects before operating this unit Use in a gaseous atmosphere Never operate this unit at a place where a combustible gas an explosive gas or their vapors exist otherwise a very dangerous accident will occur Never touch the interior by ha...

Страница 4: ...unit 9 3 3 3 Disassemblecleaning 9 3 4 Installation ofdetector unit 10 3 4 1 Outsideandmountingdimensionsof detectorunit 10 4 Connections 11 4 1 Connections 11 4 2 Layoutofconnectioncable 11 4 3 Multi detectorconnections 12 4 3 1 Connections through relay box 12 4 3 2 Connections without relay box 13 5 Names and functions of component parts 14 5 1 Names and functions of detector unit 14 5 2 Names ...

Страница 5: ...mperature Ts 35 8 10 1 Display at the detector unit 35 8 10 2 Display at the setting display unit 35 9 Inspection and maintenance 35 9 1 Periodical inspection 35 9 2 Self diagnosis function 36 9 3 Measures against troubles not included in self diagnosis 37 9 4 Maintenanceparts 38 9 4 1 List of maintenance parts 38 9 4 2 Replacement of light source lamp 38 9 4 3 Replacement of motor 39 9 4 4 Replac...

Страница 6: ...iber optics i s for moisture measurement in liquids by combining with a measuring cell for liquids Up to 9 detector unit can be connected with the setting display unit which can set various parameters of the detector unit and displays the moisture value digitally Accessories including cables and output checker plate are available for various applications This manual describes about the detector un...

Страница 7: ...flective type fiber optics 2 1 4 Reflective type fiber optics with lens attachment IR WCRE 2 1 5 Output checker plate for reflective type fiber optics with lens attachment IR WCREB 2 1 6 Transparent type fiber optics IR WCT 2 1 7 Measuring cell for liquids IR WCC1 2 1 8 Connection cable IR WERT 2 2 Accessories Component name Quantity Remarks Power supply unit IR WEP 1no S82K 05024 Omron Fuse 2 nos...

Страница 8: ...lay part is connected to the interior through cables Lift the setting display part with due care so as not to damage the cable and disconnect the connector for the setting display part at the position shown in the figure 3 Set the dipswitches according to the working conditions 3 Setting Turn off the power supply before removing the setting display part Warning Loosen these four screws C H DATA SE...

Страница 9: ...ion format Logarithm operation Ratio operation ON Don t change 3 No 2 calibration enable disable Disable Enable OFF 4 Connection destination Setting display unit PC OFF IR M2 S ON IR M2 R IR M2 A 5 Key display enable disable Enable Disable OFF 6 Not used OFF 7 Correction input enable disable Disable Enable OFF 8 Correction input 4 to 20mADC Pt100 OFF 3 Setting 1 2 3 4 5 6 7 8 O N DIP switch 1 ...

Страница 10: ... hole 2 Ø9 Mounting hole T ip fixing s cre w T ip fix ing s cre w Place the tip of fiber optics with the following measurement distance from an object Reflective type fiber optics 15 to 50mm Reflective type fiber optics with lens 25 to 100mm Warning Fix the fiber optics with appropriate metal tools at several places for avoiding affect with vibrations etc Make sure not to bend the fiber optics bel...

Страница 11: ...than 200kPa 2kgf cm2 3 2 3 Connections with detector unit Connect the side being separated into two parts of light projecting side and light receiving side with the fiber optics connectors of the detector unit The fiber optics has Light projecting side D and Light receiving side E and each one has a carved mark Connect the fiber optics through the rubber bush as shown in the following figure Warni...

Страница 12: ...t sunlight also causes disturbance In such cases it is necessary to shade the disturbing light to prevent it from direct shining on an object 3 2 5 Measuring place for objects of pulverized or granular substance For installation of the tip of fiber optics on on line select a place where the moisture difference is small between the surface and the inside of an object like as at a hopper outlet or j...

Страница 13: ...he correct sides of the detector unit and the measuring cell Fix the fiber optics with appropriate metal tools at several places for avoiding affect with vibrations etc Make sure not to bend the fiber optics below its minimum bending radius 250R Warning C H D ATA Detector Model for IR M2 Power supply unit Model for IR WEP Setting display unit Model for IR GMEG1 Measuring cell Output Input of sampl...

Страница 14: ...ut the cover glass from the liquid contacting part 4 Wipe off dirt on the glass surface with a gauze etc 5 Confirm that an O ring is inserted in liquid contacting part and push in the cover glass to the liquid contacting part 6 Match the positions of E and D characters of the connecting part and the liquid contacting part and fix the connecting part 7 After the cleaning of the cover glass make sur...

Страница 15: ...le Vibrations and impacts Use the detector unit in a place where is free of any noticeable vibrations or impacts Warning Induction The detector unit is designed for anti induction However separate the detector unit from induction heating oscillators or power lines as far as possible Warning Ambient temperature and humidity The ideal ambient temperature of the detector unit is 10 to 30 C and the am...

Страница 16: ...eparate the cables from induction heating oscillator and power lines Keep the cables free of deposit of water oil etc Don t bend the cables extremely or apply any excessive force to them For permanent layout protect the cables with conduits etc SA Black S B W hite S G Brown G 1 Green P Red P B lue P B lue P Red G Green V V LN 24V DC Ground Power supply IR WEP 100 120V AC 200 240V AC Terminal board...

Страница 17: ...the detector units is required For the number setting be careful not to overlap any detector unit number of each detector unit Refer to 6 2 Setting of detector unit number for the details Cau tion 1 Shorten the length of exclusive cable IR WERT mark as much as possible 2 For wiring to the relay box refer to Instruction manual of relay box Detector IR WERT IR W ERT IR W ERT Relaying box Power suppl...

Страница 18: ...ith shield 2 conductor twisted cable with shield Taping Taping Taping Connect the P Red P Blue and G external shield wire of IR WERT to power supply And connect the SA Black SB White and SG internal shield brown of signal wire to the 2 conductor twistcable with shield Fasten the signal wires in IR WERT SA SB and SG and the signal wire in 2 conductor twist cable SA SB and SG together at the termina...

Страница 19: ... fiber optics Rubber bush is prepared for the connection 9 Setting display Display part of this detector 10 Measurement part Optical assembly detector element and electric circuits are built in 11 Lamp housing Lamp is located inside 12 Power supply part Terminal board for wiring power fuse power supply unit and output board are built in 13 Power fuse A power fuse is mounted to the fuse holder Powe...

Страница 20: ...screen CH For setting a calibration curve number in the measurement mode and for entering a decimal point in the setting mode When the key is pressed again the decimal point disappears For entering into a parameter setting in the setting mode and changing the digit of the parameter For changing the parameter in the setting mode For changing the parameter in the setting mode ENT For storing the par...

Страница 21: ...inking digit shifts 5 When ENT key is pressed the numeric stops blinking and the detector number is stored 6 Return to the measurement mode by pressing SEL key for 2 seconds 6 3 Setting of calibration curve data The output characteristic of infrared moisture meter depends upon measuring objects It may also change according to the process conditions and sample moisture measuring conditions Therefor...

Страница 22: ... designated sequentially from 1 usually 2 Polynomial coefficient a0 to a3 Assume that the calibration curve is represented by third degree or lower degree polynomial as shown below y a3x3 a2x2 a1x a0 where y is the moisture value H2O and x is the absorbance CH0 data of this moisture meter 3 Correctionexpression coefficient b0 to b1 These coefficients are provided for primary expression correction ...

Страница 23: ... measurement mode by pressing SEL key for 2 seconds The automatic return is made if no key is pressed for one minute 6 4 Preparation of calibration curve by knee point line approximation When a calibration curve is obtained in a graph but it cannot be expressed in third degree or lower degree polynomial the calibration curve can be created by broken line approximation 6 4 1 Setting of knee point d...

Страница 24: ... 0000 Setting not required in broken line approximation 1 Calibration curve number Calibration curve number can be specified in optional numbers from 1 to 99 but usually it is specified in order from 1 2 Data count It is the number of knee point data and the maximum is 20 points 3 Data number sample data xn sample data yn Enter the knee point data obtained in 6 4 1 Setting of knee point data 4 Reg...

Страница 25: ...a number setting mode 2 Change a numeric by the procedure mentioned in the above 1 Setting of calibration curve number 2 and 3 and store it with ENT key 3 After setting the above press SEL key for entering into the sample data xn setting mode 4 After setting the above press SEL key for entering into the sample data yn setting mode 5 After setting the above press CH key to return to 1 Data number s...

Страница 26: ...EVEn EVEn nonE Non parity odd Odd parity EVEn Even parity 6 Data length 1 D 7 8 7 6 Stop bit length 1 B 1 to 2 1 6 BCC enable disable 1 Bc ON OFF OFF disable 7 Sample temperature correction enable disable St ON OFF OFF disable 8 Correction input scaling L 2 TL 999 to 999 0 8 Correction input scaling H 2 TH 999 to 999 100 Engineering mode 9 Weightα Af 0 to 1 000 0 500 10 Calibration constant k1 k1 ...

Страница 27: ...unit number This is the number for identifying the detector unit for connection of multiple detector units This setting has beencompleted in 6 2 Setting of detector unit number 6 Communications speed Parity Data length Stop bit length BCC enable disable These are for communications with a personal computer a sequencer or other similar devices These data are not necessary to set for combining this ...

Страница 28: ...to return to the measurement mode Automatic return to the measurement mode is made if any key is operated for 1 minute 6 6 Calibration For using this moisture meter accurately regular calibration once in three months is requested 1 Supply power more than one hour to this moisture meter before calibration 2 Turn the calibration curve number to 0 For the change in calibration curve number refer to 6...

Страница 29: ... measurement mode at the calibration curve number changed 6 8 Correction of calibration curve If the actual moisture value is different from the moisture value being preset due to the difference of one line and off line or other causes correct it by the correction coefficients b0 and b1 in 6 3 Setting of calibration curve data Usually the shift correction is done with b0 only CH DATA 01 10 0 Blink...

Страница 30: ...lue is measured by the Karl Fischer method or other methods 7 1 Sample preparation 7 1 1 Powder or granular 1 Take a sample of about 2 to 4 liters from the measuring object 2 Dry up the sample up to the absolute dry condition by a dryer Particularly be careful with the heating temperature so as not to denature the sample 3 Divide the dry sample every 100 to 200cc into 5 to 6 samples separately alt...

Страница 31: ...ed nearly up to the lower limit moisture of the measuring range 2 Prepare 5 to 10 containers with lid of 100 to 200cc capacity and put the above sample till the containers are full 3 Add water to these 5 to 10 samples bit by bit so that the moisture values of each sample divides the measuring range almost evenly 4 Stir each sample with water addition sufficiently and put a lid on the container tig...

Страница 32: ...y at the measuring position set the calibration curve number to 0 and read the display absorbance x If the measured value cannot be read easily delay the response by the smoothing function 5 Stir the sample rapidly with a spoon and measure it again Repeat this measurement 2 or 3 times per sample 6 Weigh the weight w1 of the tray together with the sample 7 Perform the same measurement sequentially ...

Страница 33: ... w2 Moisture value H2O 1 x1 y1 2 x2 y2 3 x3 y3 N xn y4 7 2 3 Liquid Execute the measurement in order from the object of low moisture to the object of high moisture 1 Put a sample into the measuring cell set the calibration curve number to 0 and read the display absorbance x If the measured value cannot be read easily delay the response by the smoothing function 2 With the Karl Fischer method or ot...

Страница 34: ...regression operation function by the minimum mean square method By this function first degree to third degree polynomials can be obtained by entering the data obtained in 7 2 Sample measurement Assume that there are n sets of sample data xn yn in condition that n is 20 or less 1 Setting of calibration curve number 1 Press SEL key and CH key simultaneously for 2 seconds to enter into the sample dat...

Страница 35: ... By pressing SEL key the standard deviation approximate accuracy of the regression expression of the above regression expression is displayed 3 After the settings are completed press SEL key for 2 seconds to return to the measurement mode Automatic return to the measurement mode is made if any key is operated for 1 minute 7 3 2 Confirmation of regression expression The coefficient of the regressio...

Страница 36: ...s can be set 8 2 Model This is an optional function The model number of the detector unit with this optional function is as follows IR M2 External input 5 Correction input 4 to 20Ma 8 Correction input Pt100 Communications S RS 485 R RS 232C 8 3 Wiring of detector unit 8 4 Setting of dipswitch Ref to 3 1 Setting of dipswitches 1 Turn off the power supply of the detector unit and the setting display...

Страница 37: ...rection enabled or disabled ENT OFF Correction OFF disable ENT ON Correction ON enable For the setting of sample temperature scaling as the next step skip 4 and step to 2 of 8 4 Setting of sample temperature scaling 4 Return to the measurement mode SEL for 2 seconds 8 5 2 Setting at the setting display unit 1 Set the calibration curve number to 0 CH 0 ENT 2 Enter into the correction enable disable...

Страница 38: ... temperature scaling high limit tH SEL Once 5 Set the high limit tH of sample temperature scaling Setting range 999 9 to 999 9 8 6 2 Setting at the setting display unit 1 Set the calibration curve number to 0 CH 0 ENT 2 Enter into the sample temperature scaling setting mode MODE 2 1 ENT 3 Set the low limit tL of sample temperature scaling Setting range 999 9 to 999 9 4 Enter into the setting mode ...

Страница 39: ...e sample temperature T1 For its setting refer to 8 7 Setting of sample temperature 3 Set the calibration curves at the sample temperature Ti i 2 to 10 to the calibration curve numbers 2 to 10 However Ti should fulfill the following expression T1 Sample low limit temperature T2 T9 T10 Sample high limit temperature 4 Enter 999 9 at the Ti which is not used Be careful that if this value is not entere...

Страница 40: ...ibration curve number in the group Er14 Sample temperature too high 8 10 Display of sample temperature Ts 8 10 1 Display at the detector unit 1 Set the calibration curve number to 0 CH 0 ENT 2 For canceling of the sample temperature display SEL for 2 seconds or CH 2 for seconds 8 10 2 Display at the setting display unit 1 Set the calibration curve number to 0 CH 0 ENT 2 For displaying the sample t...

Страница 41: ...temperature abnormal Element temperature is abnormal Need to return detector unit to CHINO Er10 Calibration curve data error Calibration curve data is not appropriate Reset calibration curve data Er11 Knee point line approximation error Absorbance x is out of range of broken line approximation Reset broken line approximation data Er12 Ambient temperature too high Ambient temperature of detector un...

Страница 42: ...yor 3 Make sure that the disturbance light does not radiate onto the measuring surface for reflective type fiber optics 4 Make sure that bubbles do not generate in the sample liquid for transparent type fiber optics 5 Is the fiber optics fixed firmly Make sure to fix it at a place without any vibration 6 Is the smoothing time proper Certain smoothing time is necessary for stable measurement 7 Make...

Страница 43: ...the door of the detector unit and remove the connector for the lamp 3 While holding the lamp supporting part loosen the hexagonal screw plugs on the upside of the detector unit with a hexagonal wrench and take out the lamp assembly 4 Loosen two M4 hexagonal fixing screws of the lamp holder and take out the lamp holder 5 Loosen two M3 hexagonal fixing screws of the lamp tube and take out the light ...

Страница 44: ...d the sector lightly Then separate the sector from the motor by removing four M2 screws 7 Make a new motor stand too and attach it to the sector Be careful that the sector has front and rear sides 8 Place the motor unit to make the top of the motor touch the stopper of the motor mounting base and wear the motor band on the motor In this case place the motor lead wire to the position shown in the f...

Страница 45: ...tector unit 2 Open the door of detector unit and take out the setting display part by removing four screws fixing it 3 The setting display part is connected with the interior by a cable Lift the cable with care not to damage it and disconnect the connector for the setting display part as shown in the figure 4 Take out the holder for the printed circuit board by loosing 2 M2 6 pan head screw 5 Pull...

Страница 46: ...ction cable 7 Connect the connector to the output board taken out and fix it to the case inside 8 Connect the connection cable and return the door to the original position 9 5 Ram clearing If the abnormal condition of the detector unit is not recovered initialization of the RAM is required 1 Turn on the power supply after pressing SEL key and key simultaneously 2 The contents of ram will be initia...

Страница 47: ...ons Calibration curve First to third degree expression or broken line Calibration curve count 99 Calibration curve correction Zero and span correction Calibration curve creation Regression operation Smoothing 0 to 99 seconds Shorter that 10 seconds 0 1 second increment 10 seconds or longer 1 second increment Calibration Executed with the output checker plate with the cell emptied for transparent t...

Страница 48: ...y Horizontal mounting holder flange holder 10 2 4 Output checker plate for reflective type fiber optics with lens IR WCREB It is used for checking output of the detector unit on site It is used by mounting it on the top of fiber optics 10 Specifications ºC The tip of reflection type fiber optics Ø 1 6 3 2 Pu rg e a ir in let 1 M a x 6 0 E sid e co n ne ctor 3 0 0 4 0 Le n gth is a s d e sig na te ...

Страница 49: ... about 160VA Case Horizontal mounting holder flange holder Mounting Wall mounting type DIN rail Weight About 380g 10 3 2 Connection cable IR WERT It is the exclusive cable used for the connection between the detector unit and the setting display unit power supply unit Structure 4 core cabtyre cable With double shield External diameter ö10mm Length Maximum 200m Connection Both end tips 10 Specifica...

Страница 50: ...O 173 8632 Telephone 81 3 3956 2171 Facsimile 81 3 3956 0915 E mail inter chino co jp Web site http www chino co jp INE 403 0P0 Sep 01 IR M2 Series INFRARED MOISTURE METER DESIGNED AS A FIBER OPTIC IR M21 IR M22 Printed in Japan Kuki ...

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