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3.1 Description of 

Humi

Core

 

PRO

 Sensor

The 

Humi

Core

 

Pro

  sensor for capacitive moisture measurement as illustrated in Figure 2 is based on the 

open capacitor principle. The bulk material in front of the measuring window serves as the dielectric of the 

measuring capacitor. Data processing of the raw measured values with temperature compensation already 

takes place in the moisture sensor. Data exchange with the 

Humi

Core

 

Pro

 transmitter takes place via the 

RS-485 interface.

3.2 Description of 

Humi

Core

 

PRO

 Transmitter

The 

Humi

Core

 

Pro

 moisture measuring system consists of the sensor and transmitter unit. The trans-

mitter is housed in a DIN-rail enclosure as depicted in Figure 3. The inline measuring system for process 

monitoring guarantees troublefree measurement of the internal product moisture of solids and emulsions. 

The PC-aided user interface 

Humi

Core

 Configuration Program provides clear display of the measured, 

alarm and MIN/MAX values, combined with easy editing and parameterization, enables uncomplicated and 

simple operation.

Features

·  20-bit measured value acquisition and measured value process-

ing in the sensor

·  Automatic temperature compensation according to stored table

·  High degree of functional reliability combined with self-monitor-

ing function

·  Low power input (≤ 350 mW)

·  Digital transmission of measured values immune to interference 

via RS-485 interface

·  3280’  (1000  m)  maximum  cable  length  between  sensor  and 

transmitter

·  Sturdy cylindrical stainless steel flange housing

·  Little installation effort required for 4-core connecting line

·  Easy, space-saving installation

The electronics installed behind the measuring window are encapsulated in a sturdy, hermetically sealed 

plastic case. Mounted in a solid cylindrical stainless steel housing, the sensor is extensively insensitive to 

external influences. Special internal casting protects the entire electronics against penetration of moisture 

and increases resistance to caustic solutions, acids and solvents. The 

Humi

Core

 sensor is supplied from 

the factory with pre-installed pig-tail cable and guarantees integrity to IP67 thanks to a high-quality PG 

cable gland. 

CAUTION: The measuring surface of the sensor is sensitive and must be protected against mechanical 

impacts.

Figure 2

4

Specification

·  PC-Control with 

Humi

Core

 Configuration Software

·  PLS-Connection with MODBUS-RTU-Protocol

·  24 independent product settings

·  Galvanic separated USB 2.0-Interface to the PC

·  Galvanic separated RS-485 Interface to the PLS

·  Galvanic separated analog output for moisture

·  Galvanic separated MAX-Alarm-Output

·  Galvanic separated digital input for external control

·  Galvanic separated sensor-connection

Figure 3

Summary of Contents for HumiCore Pro

Page 1: ...ing shipping container please inspect it thorough ly and verify that all parts ordered are accounted for Sometimes smaller parts become stuck under carton flaps and other packaging materials In the event that information contained herein does not complete ly satisfy your requirements or answer your questions you may contact Technical Support on our website www monitortech com by telephone at 800 7...

Page 2: ...l within the responsibility of the user unless expressly specified otherwise in the operating manual Qualified Personnel The assembly disassembly installation operation and maintenance are to be performed by qualified per sonnel practicing in the automation industry This includes persons who are familiar with installation as sembly repair and operation of the industrial instrumentation and have th...

Page 3: ...on is a simple procedure which typically utilizes end user s existing moisture measurement apparatus The HumiCore Pro sensor can provide a high precision measurement 0 1 to 0 3 typical A complete HumiCore Pro system consists of the DIN Rail transmitter and the moisture sensor The DIN Rail transmitter allows for easy integration into an existing control system Calibration software is provided In ad...

Page 4: ...combined with self monitor ing function Low power input 350 mW Digital transmission of measured values immune to interference via RS 485 interface 3280 1000 m maximum cable length between sensor and transmitter Sturdy cylindrical stainless steel flange housing Little installation effort required for 4 core connecting line Easy space saving installation The electronics installed behind the measurin...

Page 5: ...stant thickness The moisture sensor has to be placed underneath the screw conveyor as depicted in Figure 4 Figure 4 4 0 MOUNTING AND ASSEMBLY sensor bulk material location of sensor 20 to 45 Figure 5 NOTE In the case of hard bulk materials the sensor surface is subject to a latent risk of material getting stuck between the screw conveyor and the HumiCore Pro sensor This can be prevented by cutting...

Page 6: ... layer made out of Plexiglas acrylic glass or similar material can be fitted between sensor and product as seen in Figure 7 A metallic separator layer is NOT permitted Maximum thickness of the separator material is 1 18 30 mm Use of a separating layer of 0 20 to 0 59 5 to 15 mm is recommended with chain conveyors or for mea surements with media having a temperature of over 176 F 80 C up to max 266...

Page 7: ...S 485 interface and the supply voltage can be conveniently wired through the TBUS con nector snapped onto the DIN rail The TBUS connection is set up automatically in the mounting grid of the devices involved Consequently elaborate preliminary project planning or follow up work on the TBUS con nection on site is not critical Technical data 5 pole connector in the mounting grid 0 15 3 81 mm 8 A maxi...

Page 8: ... Supply BLK 13 digital input 1 14 digital input 1 15 digital input 2 16 digital input 2 21 22 23 24 13 14 15 16 17 18 19 20 17 digital output 18 digital output 19 20 21 rs485 system A 22 rs485 system B 23 24 Note 1 Supply Supply Interface Interface Note 2 ORANGE RED BROWN BLACK HumiCore Transmitter Note Factory cable shield is bonded internally to the sensor Do not connect cable shield to any othe...

Page 9: ...quite important Begin with a completely installed and fully operational HumiCore Pro system Operate the conveying system while exposing the HumiCore sensor to material that contains the minimum moisture Record the HumiCore raw measurement value Immediately acquire a sample of this material and make moisture measurement utilizing end user s established in house moisture measuring process By use of ...

Page 10: ...ming Set Up and Calibration Load program from CD onto PC Copy or drag HumiCore PRO folder onto PC desktop Open Program from desktop by clicking on HumiCore icon Next open USB Driver Windows folder and install the CP210 Silicon Labs USB Virtual Com Port driver To be able to make settings for the HumiCore PRO all electrical connections have to be provided The transmitter is connected to a PC via the...

Page 11: ...ion Extras Read device settings Program parameters Program parameters and calibration On Line display PC Settings Info Symbol bar from left Load configuration Save configuration Read device settings Program parameters On Line display User screen Products Digital inputs Analog output Max Alarm System ...

Page 12: ...erman English and Italian are available as menu languages Once the desired settings have been made confirm them with OK After you have inputted the parameters the connection between the PC and HumiCore Pro has to be set up Two options are available for this 1 Upper taskbar Extras Read device settings See Figure 14 or 2 Click on the button Read device settings in the symbol bar See Figure 15 Figure...

Page 13: ...n the field File name Then click on the button Save The file is saved with the designated name in the manually set up target directory If required e g in the case of data loss or product group changes you can load stored files and in put them in the transmitter again In the event of data loss or use of other prod uct groups the files stored under Save configu ration file can be loaded in HU_config...

Page 14: ... data See Figure 19 When the data have been transferred successfully the procedure is concluded by confirming with the OK button in the following window Figure 20 A change in the calibration values cannot be saved in this process Program parameters and calibration If one of the variables of the calibration has been changed in the user interface it has to be added manually to the HumiCore Pro This ...

Page 15: ...easured raw value Output Current mA value of variable A sensor or transfer error is indicated in the online screen with Sensor fault Figure 24 The mA value for the analog output jumps to the previously parameterized alarm value All other measured values are frozen when there is an error and thus do not change any more Error elimination Check cable and terminal connections and possi bly restart the...

Page 16: ...tent i e moisture content DS dry solids content i e dry content H2O water content i e water content The indication accuracy is specified in the pull down menu Decimal Point Up to three decimal places are possible here Measure Range Begin and Measure Range End on the other hand make it possible to limit the required measuring range Limiting the measuring range e g 30 50 RS results in a higher resol...

Page 17: ... calibration is absolutely necessary to achieve high measuring accuracy First of all you have to specify the number of calibration points In most cases 2 calibration points are adequate in this case linear behavior is assumed See Figures 26 27 2 point calibration linear behavior 3 point calibration linear behavior The next step is to specify the calibration time This may vary depending on the proc...

Page 18: ...calculated mean value of all raw values measured during the calibration The samples taken during the calibration process are now subjected to moisture determination in the labo ratory The resulting values are also combined to form a mean value The moisture value determined in the laboratory is now manually allocated to the 1st calibration point This means the first calibration point has been defin...

Page 19: ... If however the instantaneous value should be indicated the function Filter RESET is carried out Batch Mode This results in indication of the mean value of a batch Application e g for bottling plants A receptacle is filled with a product Moisture measurement is activated at the start of the filling process and deactivated after the stop The moisture measuring de vice calculates the mean moisture v...

Page 20: ...n the screen Set calibration point Now you can set the analog outputs with the help of the user interface as follows 7 3 Analog Output By means of the controller as depicted in Figure 34 you can increase the value shift controller to the left or reduce the value shift controller to the right After setting the correct value you have to click on the Save button Now the set value has been accepted by...

Page 21: ... processes In this case you can select via the pull down button whether the mean value or the current value should be used in the calculation IMPORTANT After every setting in the respective screen the data must be transferred to the HumiCore Pro system using the Program parameters button Otherwise there is a risk of losing the settings see Program parameters in Section 6 3 ...

Page 22: ...tton In this case the available option is either normally opened NO or normally closed current NC The alarm hysteresis describes the desired delay of the switching process In this case however refer ence is made to the desired percentage deviation from the alarm value It is intended to avoid changeable switching of the switch Example In Figure 35 the MAX alarm is set to 85 and the alarm hysteresis...

Page 23: ...et as the default value at 19200 bps is changed to another value with the help of the PC setup program this parameter change does not take effect in the device until after disconnection of the power supply Communication The parameterization for the baud rate and the device address have to be identical on both sides in order to start communication between PC and HumiCore Pro If a baud rate and or a...

Page 24: ...gure 37 DIMENSIONS ARE SHOWN IN INCHES WITH MILLIMETER EQUIVALENT IN BRACKETS UNLESS OTHERWISE STATED ø4 57 ø116 0 ø3 39 ø86 0 M4 Ground Connection 3 94 100 0 0 28 7 0 0 47 12 0 2 02 51 5 0 39 10 0 9 0 0 4 25 108 3 94 100 4 53 115 0 89 22 5 ...

Page 25: ...l 5 6 mA Output Terminal 15 Digital Input 2 Terminal 7 8 mA Output Terminal 16 Digital Input 2 Terminal 9 Interface Terminal 17 Digital Output Terminal 10 Interface Terminal 18 Digital Output Terminal 11 Supply Terminal 21 RS 485 A Terminal 12 Supply Terminal 22 RS 485 B TBUS connector mounting rail connector Terminal 1 RS 485 A Terminal 4 24 VAC DC Terminal 2 RS 485 B Terminal 5 24 VAC DC ...

Page 26: ...y substance TR Indicator Percentage value with max 3 decimal places Accuracy max 0 2 depending on the product Average value 0 999 seconds Filter value 0 999 9 seconds Temperature coefficient Maximal 0 05 K Typical 0 03 K Product memory max 24 product characteristics General Galvanic separation In Output Supply 300 Veff rated insulation voltage overvoltage II Contamination level2 secure division ac...

Page 27: ...Switching voltage 28 VDC Switching current 50 mA Digital Inputs different functions Galvanic separation between the digital inputs to the auxiliary energy and to all other inputs outputs Direction of effect direct or invers Control voltage min 8 VDC max 36 VDC Control current min 2 mA max 14 mA PLS Interface RS 485 Galvanic separation of the RS 485 to the auxiliary energy and to all other inputs o...

Page 28: ...f any defect to Monitor within the warranty period return the product intact and prepay transportation charges The obligation of Monitor Technologies LLC under this warranty is limited to repair or replacement at its factory This warranty shall not apply to any product which is repaired or altered outside of the Monitor Technologies LLC factory or which has been subject to misuse negligence accide...

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