Process Sensors MCT Series, MCT 300 Installation And Operation Manual

Multiple Constituent Transmitter

MCT Series

Installation and Operation Manual

June 15, 2005

Process Sensors Corporation

www.processsensors.com

USA:

Process Sensors Corp

113 Cedar Street, S1
Milford, MA 01757
Tel: [phone]
Fax: [phone]

[e-mail]

Europe:

Process Sensors Europe
Adelaide House, Unit 3
Corbygate Business Park
Corby, Northants NN17 5JG UK
Tel: [phone]
Fax: [phone]

[e-mail]

Eastern Europe:

Process Sensors Polska
Dr inz. Tomasz Stachowiak
Biuro Informatcyjne Techniki
Pomiarowej 03-980 Warzawa
ul. Znanieckiego 16/23
Tel: [phone]
Fax: [phone]

[e-mail]

Table of Contents

1.0 Introduction

2.0 Principle of Operation

3.0 Sensor Components

3. 1 Light Source

3.2 Filter Wheel

3.3 Filter Wheel Motor

3.4 Detector

3.5 Electronics

4.0 Installation

4. 1 Sitting the Sensor

4.2 Vibration

4.3 Strong Light

4.4 Temperature

4.5 Humidity & Dust-Window Air Purge

4.6 Optimum Viewing Distance

4.7 Reflections from Material Surface

5.0 Power and Cable Connections

5. 1 AC Power Connections

5.2 Analog & Serial Cable Connections

5.3 Remote Displays & Operator

Interface

6.0 Operator Interfaces

6. 1 Wall Mounting Interface

6.2 Initial Power-Up

6.3 Key Pad

7.0 Set-Up Instructions-Operator Interface

7. 1 Menu Structure

7. 1. 1 Key Pad Lock

7.1.2 Display Selector

7. 1.3 Product Code Select

7. 1.4 Grab Sampling Averaging

7.2 Main Menu Selections

7.3 On-Line Menu

7.4 Calibration Parameters

7.4.1 Analog Output Channels

7.5 Calibration Routine

7.6 Diagnostics

7.7 Miscellaneous

8.0 Gauge Calibration

8. 1 Approximate Calibration

8.2 Multi-Sample Calibration

8.3 On-Line Off Set Trim Adjustments

8.4 Linear Regression Statistics

8.5 Online Multi-Sample Statistics

9.0 Accessories

9. 1 Window Air Purge Assembly

9.2 Product Loss Sensors

9.3 Network Interfaces

9.4 Cooling Panels

9.4. 1 Air Cooling

9.4.2 Water Cooling

9.5 Maintenance Alarm

9.6 Clean Window Alarm

9.7 Power Sampler

9.8 Local Display Unit (LDC)

10.0 Output Signals

10. 1 Serial Communications

10. 1.1 Serial Requirements

11.0 Customer Wiring Connections

12.0 Maintenance

12.1 Routine Maintenance

12.1.1 Sensor Window

12.2 Self Diagnostic Warnings

12.3 Corrective Maintenance

12.4 Replacement Parts List

Appendix I- Special Features
Appendix II- Power Sampler Accessory
Appendix III- Dry Basis Measurements
Appendix IV- Cal Check Standards
Appendix V- Serial Commands
Appendix VI- PI Controller Output
Appendix VII- Outline Drawings
Appendix VIII Product Temperature Option

1

Warranty, Exclusions and Limitations

The workmanship and the materials of all products manufactured by Process Sensors Corp. are
warranted for a period of one year from the date of shipment. This warranty covers parts and labor
required to correct defects within the scope of the Corporation’s warranty.

Excluded from the warranty coverage are products a) which have been subjected to electrical,
mechanical or other misuse or abuse b) which have been disassembled or repaired, or attempted to be,
by other than PSC or its authorized servicing agents.

The foregoing warranty shall be in lieu of all other warranties, expressed or implied, and the
Corporation expressly disclaims any warranty for merchant ability or fitness for a particular purpose.

Unless otherwise agreed in writing by the Corporation, repairs and replacement parts provided by the
Corporation under its warranty shall be guaranteed only for the non expired portion of the original
warranty on the repaired product.

The liability of PSC to any purchaser or user of its products shall not in any case exceed the cost of
correcting defects in a product as herein provided and, upon expiration of one year from the date of sale,
all such liability shall terminate. In no event shall the Corporation be liable for interruption of
operations, loss of profit, or special or consequential damages.

Software Updates

Future revisions of the software that correct errors will be made available to customers at no charge.
Improvements and enhancements to the software will be available for a nominal fee.

1.0 Introduction

The MCT Series are near infrared photometric analyzers that use fixed infrared wavelengths to measure

one, two or three constituents in a variety of products.

The MCT is a “stand-alone” sensor with all items necessary for continuous monitoring being located in
the sensor. Optional wall-mountable or hand-held operator interfaces are available for setup, calibration
and maintenance.

2.0 Principle of Operation

The molecular bonds O-H, C-H and N-H absorb infrared radiation at several specific wavelengths. The
MCT generates these absorbance wavelengths and several other non-absorbing wavelengths using a
rotating wheel containing up to 6 infrared filters. This chopped light is reflected from the surface of the
product collected by optical components inside the sensor. The resultant electrical pulses from the
reflected light are mathematically treated in ratio-based algorithms to compute raw measurements of the
measured constituents. These raw values are then scaled by offset (zero) and sensitivity (span) factors to
provide direct readings of the constituents.

Compensation for aging of optical components and the variations in the reflectivity of different products
is provided in the algorithm treatment of the filter reflectance values.

3.0 Sensor Components

The MCT is housed in an epoxy painted cast aluminum Nema 4 housing. A rear bracket allows the
sensor to be mounted, ensuring the light beam reflects from the product at all times.

3.1 Light Source

A quartz-halogen light bulb running at reduced voltage generates infrared energy.

3.2 Filter Wheel

Up to six infrared and visible filters are held in a circular disc. A single timing notch is machined in the
edge of the disc.

3.3 Filter Wheel Motor

A precision brushless DC motor is used to accurately rotate the filter disc in front of the infrared light
beam.

3.4 Detector

A thermoelectrically cooled PbS detector is used to convert the infrared light energy into electrical
pulses.

1

3.5 Electronics

The MCT contains the following electronic components:

o Power Supply, a 90-260 volt auto selection supply providing DC power to operate the sensor.
o Main PCB, containing pre-amplifiers, detector controller, central processing system, analog and

serial communications.

4.0 Installation

4. 1 Sitting the sensor

The sensor is capable of operating at any orientation provided the light beam can reflect from the
surface of the product.

4.2 Vibration

The sensor mounting support and any items in contact with the sensor should be free from excessive
vibration.

4.3 Strong Light

Strong infrared light or direct sunlight should not be allowed to fall on the sensor window or erroneous
reading may occur.

4.4 Temperature

The sensor is designed to give satisfactory measurements within a temperature range of 32 to 120 deg. F
(0 to 50 deg. C).

4.5 Humidity and Dust – Window Air Purge

The head should be kept clear of excess humidity. It is important to prevent condensation on the sight
window. Normal atmospheric dust will not affect the sensor reading but similar to humidity,
accumulation of dust on the window will impair the sensor’s operation. The air purge attachment fitted
to the sensor window requires a 1/4” (6mm) tube with a supply of clean oil free dry air at a pressure not
exceeding 10 psi. at approximately 2 liters per minute.

4.6 Optimum Viewing Distance

2

The optimum viewing distance is 8” (200mm) from the bottom of the sensor but any distance between
6” and 12” (150 - 300mm) is acceptable. Variations in product pass height of +/- 1” (25mm) around the
8’’ (200mm) nominal are permissible.

4.7 Reflections from the Material Surface

It is essential to avoid specular reflections of the transmitted light from the product. Powdered and
granular products cause no problems and the sensor light beam may be mounted at any angle to the top
surface of the product. The closer the beam is to 90º from the surface the better the reflected signal
strengths. Highly reflective and shiny sheet materials require that the sensor be angled so that the light
beam is at approx. 80º-85º to the sheet surface.

Powdered & Granular

Materials

8" or 200mm

Sheet & Reflective

Materials

80-85*

5.0 Power and Cable Connections

3

Refer to Section 11.0

5. 1 AC Power Connection

The sensor is powered directly using the 6-foot (2mtrs) power cord provided. The input is auto ranging
and accepts 90-260VAC volts, 15 amps. It is recommended that the power be supplied via a breaker or
on/off switch mounted close to the sensor. An optional breaker switch is available from PSC.

5.2 Analog and Serial Cable Connections

Customer data cables connect to the sensor by two 6-way I/O connectors on the rear of the sensor.
Details of the respective terminals in these connectors are given in Section 11.0

5.3 Displays and Operator Interfaces

The MCT may be set-up by using several operator interface and display modules.

Wall Mountable: This display interface is designed to be permanently connected

to the sensor. It connects using a cable up to 500 feet (150

meters) in length.

The interface connects to the sensor using the 9 pin circular socket located on the rear of the sensor
housing.

Detailed descriptions of these interfaces are given in Sections 6.0 & 7.0

Host Computer: This interface is a PC program designed to allow access to

an individual sensors internal setup and calibration settings.

The PC software program has its own Operation Manual.

It connects to the serial port of the sensor.

6.0 Operator Interfaces

4

6.1 Wall Mounting Interface

The Wall Operator Interface is a display unit with keypad for user setup, calibration and routine
interaction with the sensor. It is constructed in a cast aluminum housing rated for Nema 12 (IP 55).
The display is a two-line 20 character vacuum fluorescent display. It may be mounted up to 100 feet
from the sensor and obtains both power and communications from the sensor.

6.2 Initial Power-Up

After installation and cable connection is complete, turn the power on at the breaker. The display on the
operator interface will illuminate indicating power-up and the sensor will emit a flashing green light.

6.3 Keypad

The front of the Operator Interface contains eight keys that allow the user to setup, calibrate and check
internal diagnostics of the MCT.

5

Wall Mount Operator Interface

6

Keypad

Keys: Symbol:

UP/DOWN
RIGHT/LEFT

PRODUCT
CODE

ENTER

HAND

Allows the user to move around the
menu structure and to position the cursor
in the desired place for setting numerical
values.

Selects the desired Product Calibration
Code.

Confirms changes and commits them to
permanent memory.

Computes an average value when a
grabbed sample is taken.

DISPLAY
ROTATE

Allows user to select each individual
constituent

7

Operator Interface Panel

2X

8

7.0 Set-Up Instructions - Operator Interface

The wall mountable and handheld operator interfaces both operate in identical ways; the only difference
between the two is the size of the display and the style of enclosure. All the information required to
operate and calibrate the MCT, is given on the 2-line/20 character vacuum fluorescent display.

7.1 Menu Structure

The interface software is organized in a menu “tree” structure. Using the keypad on the front of the
operator interface allows selection of the menu items. The lower half of the display changes as the user
moves through the menu choices.

7.1.1 Keypad Lock

The complete keypad may be ‘locked’ preventing use of any key until the correct key push
sequence is made to unlock the keypad. Contact Process Sensors to obtain the lock and unlock
sequences.

7.1.2 Display Selector

The MCT may be ‘Set-up’ to measure up to three constituents in a product. Depending on this
set-up the MCT’s ‘Home Screen’ will be different.

Home Screen for Single Constituent

Constit : 13.6%
Prod: Prod A (01)

Home Screen for Dual Constituents

9

Constit 1 : 3.6% 01
Constit 2 : 25.9% 01

Home Screen for Three Constituents

Constit 1 : 3.6% *
Prod.: Prod A (01)

In the Three Constituent Mode the top line will scroll through the three constituents at 5-second
intervals. An asterisk will be presented in the upper right corner indicating that the sensor is in the Three
Constituent Mode.

The constituents have identical menu structures and access to any of them is gained by selecting the
desired constituent using the Display Rotate key. When in the dual or triple ‘Home Screens’, access to
the menus is denied and only the, Display Rotate, Enter and Prod. Code # key are active.

Display Rotate Key – Single Constituent Mode

When the MCT is measuring a single constituent the Display Rotate Key will act as a ‘Home’ key.

Display Rotate Key – Dual and Triple Constituent Modes

Pressing the Display
Rotate key

once

select the first

will

Constit 1: 3.6% 01
Prod: Prod A (01)

(constituent) menu

Pressing Display
Rotate a second time
will select the second
constituent menu

Constit 2: 25.9% 01
Prod: Prod A (01)

10

Dual Mode

Pressing Display
Rotate a third time will
revert the display to the
two constituent 'home
screen'

Triple Mode

Pressing the Display
Rotate a third time will
select the third
constituent menu

Constit 1: 3.6% 01
Constit 2: 25.9% 01

Constit 3: 34.5% 01
Prod: Prod A (01)

Pressing Display
Rotate a fourth time will
revert the display to the
three constituent 'home
screen'

Note: The Display Rotate key will rotate between the constituent menus at any lower level in the
menus, e. g. When the display is on Constituent 1, Prod. Code 1, zero setting, pressing the Display
Rotate will switch the display to Constituent 2, Prod. Code 1, zero setting.

Constit 1: 3.6% *
Prod: Prod A (01)

7. 1.3 Prod. Code Select

Both constituents have 9 Calibration codes allowing the MCT to be calibrated for 9 different
products. Each constituent has independent codes, but they are ‘tied’ for each product.
The display will indicate, at the extreme right, the Prod. Code being used at any time.
Changing the Prod. Code is made by pressing the Code Key # until the desired code is presented

and then pressing ENTER to activate that number. Note: Calibrations can be extended to 50,

call PSC for details.

11

Home Screen-Single
Mode

Press the code # key
will scroll through the
10 product codes

Press ENTER to accept
the desired Prod. Code

Moisture: 3.6% 01
Prod: Prod A (01)

Moisture: 3.6% 01
Prod.: Prod A (09) ???

Moisture: 3.6% 01
New Cal Accepted

7. 1.4 Grab Sample Averaging

To aid in noting the sensor’s reading while a sample is grabbed from the conveyed product, the
Grab Sample Key will compute an average of the sensors reading between TWO pushes of the

key. To use this feature the display must be in a single constituent mode.

Press Display Rotate
to display the
constituent of interest.

Pres the Grab Sample
key. While it shows
AVERAGING take a
sample of the product.

Press the Grab Sample
Key a second time, to
display the average of
the first constituent.

Press the Display
Rotate Key to show the
average of the second
and third constituent.

Moisture: 3.6% 01
Prod.: Prod A (01)

Moisture: 3.6% 01
Averaging!!!

Moisture: 3.6% 01
Average = 3.6%

Oil: 25.9% 01
Average = 25.9%

12

Press the Grab Sample key a third time to exit the routine or wait 10 seconds and it will exit
automatically. Press Display Rotate to return to the ‘Home’ screen.

Main Menu Selections

7.2.

The menu selections of each constituent are as follows:

Online (Home)

Calibration Parameters
Calibration Routine
Diagnostics
Miscellaneous

The display will normally start from the Online selection.

Pressing the DOWN/UP arrow key will scroll the display through the menu selections.

Pressing the RIGHT arrow will allow entry to the selected menu.

Pressing the LEFT arrow ONCE will get back to the menu selection, pressing TWICE will get back to
the HOME display.

The following sections give a detailed description of the various menu choices available to set-up and
calibrate the MCT using the operator display and interface.

Press the DOWN arrow to select the desired menu field. To access this selection, press ENTER. All
menus except Diagnostics are protected by a password.

13

Main Menu Selections

Home

Moisture: 12.89%
Prod.: Prod A (01)

Moisture: 12.89%
CAL PARAMETERS

Moisture: 12.89%
CAL ROUTINE

Moisture: 12.89%
Damping: 5

Moisture = 5.1% 01
Sample Val: 0.0

Moisture: 12.89%
Password:0000

Displays Calibration
Parameters

Moisture: 12.89%
Password:0000

Enters Cal Develop

Moisture: 12.89%
DIAGNOSTICS

Moisture: 12.89%
MISCELLANEOUS

Moisture: 12.89%
First Diagnostic Value

Further Values

Moisture: 12.89%
Password:0000

Enters Misc. Menu

14

7.3 On-line Menu

The user may make changes to the response time of the sensor and to the zero setting of the selected
Calibration Channel directly from the ‘Home” screen.

When at the ‘home’ screen, pressing the RIGHT arrow will display the Damping Time currently being
used by the sensor.

Press the RIGHT arrow to set the cursor under the digits use the UP/DOWN keys to set the desired
value. Press ENTER to confirm the selection.

From the Damping display press the DOWN arrow to access the Sample Value Trim screen.
This screen allows the sensors reading to be adjusted to agree with the known moisture content of the
sample it is viewing.

Use the RIGHT key to move the cursor under the digits, use the UP/DOWN keys to set the desired
value. Press Enter to confirm the value.

HOME Screen

Moisture: 5.1% 01
Prod.: Prod A (01)

Moisture: 5.1% 01
Damping: 1

Moisture = 5.1% 01
Sample Val: 0.0

15

7.4 Calibration Parameters

Move down to display

CAL Parameters

Move right to enter the
menu

Moisture= 12.89%
CAL Parameters

Password:

cursor under digits,
move up/down to
set the correct
password, Press
ENTER to accept

Prod. Code Selection:

To view and adjust the
settings stored in each of
the 9 calibration
channels, move the
cursor under the digits,
move up/down to set the
desired value, then press
Enter to confirm Move
down to the next menu
parameter

Zero Settings:

the cursor under the
digits, move up/down
to set the desired
value, then press
Enter to confirm.
Move up or down for
other menu
parameters

Move

Move

Moisture= 12.89%
PASSWORD=0000

Moisture= 12.89%
PARA: PROD. A (01)

Moisture= 12.89%
ZERO = -43.75

Moisture= 12.89%
PASSWORD=____

Moisture= 12.89%
PARA: Prod E (05

Moisture= 12.89%
ZERO = -45.78

)

Span Settings:

Repeat as per the
offset setting
adjustment

Moisture= 12.89%
SPAN = 14.56

Moisture= 12.89%
SPAN = 18.78

16

Analog Ranges:

Move down to
access the Analog
Output Ranges.

Analog Out 1 High
Setting:

cursor under the
value. Move up/
down to set the
desired value, press
Enter to confirm.

Move the

Moisture= 12.89%
Anout (1) HI: 100.0

Moisture= 12.89%
Anout (1) HI: 50.00

Analog Out 1 Low
Setting:

previous parameters.
Move Down to access
Analog #2 settings,
repeat as above.

Analog Out 2
Settings:

DOWN to access
Analog Out 2, then
down again to access
Analog Out 3. Repeat
as per Analog 1 for
different values
compared to the
default values of 0.0
and 100.0

Repeat as per

Press

Moisture= 12.89%
Anout (1) LO: 00.00

Moisture= 12.89%
Anout (2) HI: 100.0

Moisture= 12.89%
Anout (2) LO: 00.00

Moisture= 12.89%
Anout (1) LO: 2

0.0

Moisture= 12.89%
Anout (2) HI: 50.00

Moisture= 12.89%
Anout (2) LO: 2

0.0

17

7.4.1 Analog Output Channels

The MCT has three analog output channels providing both milliamps and voltage
signals. These channels may be designated to the constituent using an RS 232
command. The default designations are as follows:

Single Constituent Mode

# Format Constituent #

Analog 1 Isolated 1

Analog 2 Isolated 1

Dual Constituent Mode

# Format Constituent #

Analog 1 Isolated 1

Analog 2 Isolated 2

Analog 3 Isolated Selectable for 1 or 2

Triple Constituent Mode

# Format Constituent #

Analog 1 Isolated 1

Analog 2 Isolated 2

Analog 3 Isolated 3

Refer to the User Terminal Drawing located in Section 11.0 for the location of the
terminals for the analog signals.

7.5 Calibration Routine

18

This menu selection allows the operator to correctly calibrate the sensor on the range of products
being measured. When using this sequence, the following information will be required:

1. Calibration Channel (1 through 9) that was used to generate the MCT
readings for each sample.

2. List of MCT readings with the corresponding laboratory determined
moisture values for each sample.

Move DOWN to

CAL Routine

move right to enter
the menu

then

Moisture= 12.89%
C

AL ROUTINE

Password:

under digits, move up/
down to set the correct
password, press Enter to
accept and enter the
menu

Number of Data
Pairs:

cursor to the digits
and use up/down to
set the # of data pairs
being used for the
calibration. Min. is 2,
max. is 25. Move
down to the next
menu choice.

Move cursor

Move the

Moisture= 12.89%
PASSWORD = 0000

Moisture= 12.89%
D

ata pairs = 00

Moisture= 12.89%
PASSWORD = 1234

Moisture= 12.89%
Data pairs = 05

Select the Cal. Code used by the sensor to generate the data pairs:

19

Move the cursor under the Prod. Code value and scroll up/down to set the correct value. Press Enter to
accept. Move DOWN to enter the first data value.

Moisture= 12.89%
Start: PROD A (01)

Moisture= 12.89%
Start: PROD A (03)

Move the cursor under the digits for the first LAB value. Scroll up/down to set the value. Press Enter to
save this value. Move the cursor under the digits and set the value. Press Enter to save.

Moisture= 12.89%
Lab Val 01:2.56

Move DOWN to enter the corresponding MCT value. Press Enter to save the value.

Moisture= 12.89%
MT VAL 01: 3.23

Repeat for all the data pairs

When all pairs have been entered move Down to Calculate. Move the cursor to Y to calculate the
regression coefficients and the new Zero and Span values. Selecting N will abort the calculation.

Moisture= 12.89%
Calculate Y/N

20

Regression Statistics: The display will present the linear regression statistics of correlation coefficient

CC and standard error SE. Move down.

Moisture= 12.89%
CC:0.987 SE: 0.04

Calculated Calibration Settings: Using the regression statistics, the software will calculate the correct

calibration settings for the data entered. Move down from the zero screen to view the Span value.

Moisture= 12.89%
New Zero: -23.56

Move Down to Save the NEW

values.

Move the cursor under the digit, then

UP/DOWN to set the desired value.

Press Enter to Save the settings.

Press the LEFT arrow once to return

to the CAL Routine selection, twice

to go Home.

Moisture: 5.1% 01
New Span: 15.00

Moisture= 12.89%
Save? :Prod A (01)

21

.6 Diagnostics

7

The MCT’s software continually monitors several internal electronic variables to ensure that the sens
is operating correctly at all times. If any of these parameters go out of pre-set limits then the M
display will provide a warning message. Maintenance perso

arameters by selecting Diagnostics from the Main Menu.

p

nnel may view the values of these

or

CT’s

Move DOWN to DIAGNOSTICS and then move right to enter the menu. The Diagnostics m

selection is not protected by a password as none of the parameters displayed may be altered.

enu

Moisture= 12.89%
DIAGNOSTICS

The Diagnostics Menu allows the user to view the status of various internal set up parameters, voltages
and signal levels. Pressing the DOWN/UP key will scroll through the various parameters monitored by
the system.

Moisture = 12.89%
Thermistor: 3.20v

Moisture = 12.89%
Cooler Drive: 1.61v

Moisture = 12.89%
Gain: 156 (7.1v)

This parameter is the internal temperature
signal of the Pbs detector.

This parameter indicates the voltage of the
thermocooler being used to keep the
detector at the set temperature of 20ºC.

This is the gain factor of the pre-amp and
the strength of the largest filter signal on
the detector.

22

Moisture = 12.89%
Motor: 1101 rpm

This is the motor speed in rpm.

Moisture = 12.89%
PSU VCC: +4.9v

Moisture = 12.89%
PSU VP: +15.3v

Moisture = 12.89%
PSU VP: -15.1v

Moisture = 12.89%
F1-F6 Ext & Int: 2.75

This is the value of the +5 volt power
supply.

This is the value of the +15 volt power
supply.

This is the value of the -15 volt power
supply.

These screens will display the live values
of the 6 filter values, for both external and
internal light beams.

Moisture = 12.89%
INT Temp: 45.0C

This screen displays the sensor's internal
temperature.

23

Ranges of Diagnostic Parameters:

The Operator Interface Display will present fault warnings indicating that certain diagnostic values are
outside of the acceptable ranges. The following table gives the range of values for each of the diagnostic
parameters and the fault message that is displayed on the Operator Interface.

Parameter Nominal

Value

Min.

Value

Max.

Value

Warning Message

Internal Filters 3.0-8.0 1.0 9.9 High/low Signals
External Filters. 3.0-8.0 1.0 9.9 High/Low signals
+ 5 VDC 5.00 4.5 5.5 VCC Fault
+15 VDC 15.00 13.0 17.0 VP Fault

- 15 VDC 15.00 13.0 17.0 VN Fault
Motor Speed 1100 1000 1200 High/Low Motor
Filter Wheel Slot No slot switch input for > 400 ms Motor Stopped
Gain (AGC) 100 1 255 None
Cooler Drive 2.5 0.1 4.5 None
Thermistor
Internal Temp

2.5

42.0

0.1

25.0

9.0

65.0

High/Low Thermistor
None

7.7 Miscellaneous

24

This menu selection allows users to setup several basic parameters and to view some reference data
stored in the sensors memory.

Press RIGHT to enter the menu. Press RIGHT again to move the cursor under the digits, Scroll up/down
to set the correct password.

Moisture = 12.89%
MISCELLANEOUS

Number of Digits after the decimal point

Using the Right arrow move the cursor under
the digit and press up/down to set the desired
number. The minimum is 1, the maximum 3.
Press ENTER to save.

Network ID number

For sensors used in multi-sensor networks
each sensor may be given a discrete ID
number in the range 1-9, a-z or A-Z.

Serial Number

The serial number of the sensor main PCB is
stored in memory for reference purposes.

Moisture = 12.89%
Password: 000

Moisture = 12.89%
# OF DIGITS: 1

Moisture = 12.89%
Inst ID: 1

Moisture = 12.89%
Ser. No. 1009

25

Software Version

The revision of the Eprom is stored for
reference.

Password Change:

The password that is needed to gain access
to other menu selections may be customized.
The default password is 0000. The display
will default to this default value even if the
password has been set to a different number.
To change the password move the cursor
under the digit and scroll up/down to set a
new number. If the password is not known or
forgotten consult Process Sensors for a
special number to gain access to
Miscellaneous. Enter this special password
and then Enter a new password as above.
The characters that may be used in the
password are 0-9.

The MCT series sensors arre fitted with
software that continually monitors the
cleanliness of the sensor window. This
software may be switched ON/OFF by this
command. More details of this "Dirty Window
Alarm" are found in the Accessories section
of the manual.

Moisture = 12.89%
MCT200 V3.39E

Moisture = 12.89%
New Password: 0

Moisture = 12.89%
Set Clean Window

000

Reset Software:

Pressing the ENTER key will reset the
software.

Moisture = 12.89%
Enter for Reset

26

8.0 Gauge Calibration

The object of gauge calibration is to obtain a straight-line graphical relationship between the sensor’s
reading and the true moisture value of a series of samples.

MT Calibration Graph

10 *
*
8 *
*
6
*
4
*
2

0 2 4 6 8 10 12 14 16 True Moisture

8. 1 Approximate Calibration

Select one of the Product Codes (1-9 or 1-50) that will be used to store the calibration setting for the
product being measured.

Ensure that this Code # has valid settings for both zero and span.

Make or collect from the process two samples with moisture contents close to the lower and upper

values expected to occur in the manufacturing process.

Present the lower sample to the sensor and allow the sensors reading to stabilize.

Adjust the sample value setting to make the sensor reading read the same as the true moisture of the
sample.

Present the upper sample to the sensor and allow the reading to stabilize.

Note the sensor reading.

Use the calibration routine in the Operator Interface (Section 7.5) or the MCT
Viewer Software to correct the zero & span values. (see Viewer Software Users Guide)

27

8. 2 Multi-Sample Calibration- Static Samples

A more accurate calibration may be obtained by using a larger quantity of samples. As for the
approximate calibration, select the Product code that will be used to store the correct calibration settings.

Make or collect from the process a series of sample (up to 25) with moisture contents covering the range
expected in the process.

Set the Span value to 25.0 and the Damp time to 1sec.

Present the lowest sample to the sensor; adjust the zero setting to make the sensor’s reading agree with
the true moisture content of the sample. Note the reading.

Continue to present each of the other samples in turn, noting the sensor reading for each sample.

Tabulate the results as follows:

Sensor

Using the operator display module (refer to Section7.5):

• Select the Calibration Menu.

• Select the Product Code used to collect the above data.

• Enter the number of data pairs = 5

• Enter the data pairs as requested by the display.

• After all 5 pairs have been entered, review the calibration statistics.

Transfer the new calibration settings to the previously selected Code or to any
other Code number.

The sensor is now accurately calibrated and is ready to be installed on the process line. Due to changes
in the environment, and the way that the moisture is “held” in the process samples it will be necessary to
adjust the zero setting to match the sensor display to the true moisture value of a grabbed sample.

True Value

3.7 3.7

4.5 5.2

7.6 8.3

9.5 10.3

8.2 8.9

28

8.3 On-line Offset Trim Adjustment

Install the sensor on the moving process line. Grab 2-3 samples of the product and note the sensor’s
reading for each sample. For a more accurate calculation of the sensor’s readings during the collection
of the each sample, the sensor’s “grab sample average feature” may be used. Refer to section 7.3 for
more details on the use of this feature.

Calculate the average of the three sensor readings and of the three true moisture values.

Adjust the zero setting as follows:

New Zero = Old Zero - (Sensor Average - True Moisture Average)

8.4 Linear Regression Statistics

The sensor’s computer calculates several statistics during its calibration routine; these statistics give a
measure of the accuracy and quality of the calibration.

Correlation Coefficient: This is an expression of how well the sensor readings

match the True values.

1.0 is perfect
Greater than 0.9 is acceptable
Less than 0.9 is not acceptable

Standard Error: This is a gauge of the accuracy of the calibration. A perfect

value is 0.0. Acceptable values are in the 0.0 to 0.5 range
depending on the moisture ranges being measured.

8.5 Online Multi-Sample Calibration

If, due to the nature of the product, it is not possible to make sample with varying moisture levels, then
an online calibration may be necessary. Careful planning and sample taking is needed to ensure an
accurate calibration.

Samples should be taken at, at least 3 different moisture levels. Two samples should be taken at each
moisture level. The moisture levels should be as wide as possible, but at least +/- 5% of the target
moisture. In a similar way to the static calibration tabulate the paired data of sensor readings and
laboratory determined true moisture values. Use the Operator Interface or PC software to calculate the
correct Zero and Span settings.

29

Sample Handling:

Representative sampling is a key factor in the calibration procedure. It must ensure that any sample
taken from the line relates exactly to the displayed moisture reading logged as “the sensor reading”.
Samples should be taken immediately downstream of the sensor and in the same plane as the
measurement beam. This eliminates variations in the moisture content across or along a conveyor.
Samples should only be taken from the surface of the product rather than by “digging” down to the
bottom of the conveyor. This eliminates variations down through the bed of product.
Samples should only be taken when the sensor reading is stable, avoiding time when the product
moisture may be rising or falling.

A sample of approximately 2 handfuls should be taken and immediately sealed in an airtight container
or bag. Prior to laboratory analysis the sample should be allowed to stand for about 30 minutes to ensure
homogeneous distribution of the moisture.

30

9.0 Accessories

9.1 Window Air Purge Assembly

This assembly installs around the optical window to protect it from air borne contaminants. Air is
connected via the ¼ inch (6mm) pipefitting and a sintered insert disperses the air around the optical
window.

Clean, dry, oil free air at 2-3 psig < 5 scfm should be connected. Only a nominal supply is required, high
airflow in the tube tends to create a vortex and actually sucks dust into the tube.

9.2 Product Loss Sensors

These are photoelectric proximity sensors that mount to the sensor. They “sense” the presence of the
product under the sensor. When the product disappears they provide an input contact to the HOLD input
in the sensor, to freeze the sensor’s readings and analog outputs until the product returns.

9.3 Network Interfaces

The sensor may be fitted with a variety of interface modules that provide the sensor’s output data in the
correct format for the network into which it is operating. Refer to the instructions provided with each
option module for installation and output formats.

9.4 Cooling Panels

The MCT series sensors may be fitted with a cooling panel to allow the sensor to be installed in
environments where the temperature is greater than 50 C (120 F).
The cooling panel is mounted on the bottom face of the sensor and may be used with either water or air­cooling media.
When used with air-cooling a Vortec Cooling Element will be provided. This element provides a stream
of cold air to the panel.
The requirements for either cooling media are as follows:

9.4.1 Air Cooling

Connect the Vortec cooling element to the inlet port on the cooling panel.
Connect a ¼” (6mm) inlet tube to the inlet of the cooler element.
Supply clean, dry air at 80 – 100psi (6-7 bars) to the cooler.

9.4.2 Water Cooling

Connect a ¼: (6mm) tube to the inlet and outlet connectors on the cooling panel.
Supply cold water (65-80F/20-27C) at an approximate flow rate of 1cfm (0.3 liters/min).

31

9.5 Maintenance Alarm

The MCT sensor may be fitted with an alarm card with a DC solid-state relay that will activate
whenever any of the sensor’s internal alarms are triggered. Refer to the Maintenance Section for a
listing of the alarms that will trigger the alarm contact.

9.6 Dirty Window Alarm

All MCT sensors have a software routine that continually monitors the cleanliness of the sensor’s
window. This routine may be activated in the Miscellaneous Menu selection. The routine requires that
on initial installation, when the sensor has a clean window, that this clean state be ‘learned’ by the
software.
During the operation of the sensor, if the sensor’s signals drop to below 70% of the ‘learned’ clean
window signal, and remain at that level for several minutes, then a warning message will be presented
on the Operator Interface and a digital alarm flag will be sent out the serial port. When this message
appears the window should be cleaned and the ‘clean’ level re-learned. If the feature is not required it

may be switched off in the Miscellaneous Menu.

9.7 Powder Sampler

The MCT sensor may be fitted with a Powder Sampler that allows the sensor to make measurements on
free falling materials inside enclosed ducts. Refer to Appendix II for complete details of the hardware
and software needed for this Powder Sampler.

9.8 Local Display Unit (LDU)

The LDU is an LED display complete with a ‘Grab Sample’ button that is intended to be located
alongside the production line close to the sensor and the point where samples will be collected from the
line for calibration verification. The LDU connects to the sensor with a standard interconnecting cable
and has a second cable connector for the Hand Held Operator Interface to connect to. Refer to the rear of
the manual for the outline dimension and mounting detail drawing of the LDU.

The LDU presents the sensor’s reading together with a display of the calibration channel being used. In
the front of the unit is a push button switch. This switch initiates a short-term average when a sample is
grabbed.

To initiate the average:

Push the button
The display will show AVG
Grab a sample from the product flow
Push the button again
The display will show the average of the sensor readings since the initial button push.
The value will flash indicating that the value is the average.
After 10 seconds the display will revert to the normal live sensor reading.

32

10.0 Output Signals

The MCT has the following signal interfaces available for connection to other devices.

Analog Outputs: Three 0–10 volts isolated.

Three 4-20mA isolated.
Load resistance 500 ohms Max.

Hold/Gated Input: Facility for a contact closure input indicating a gap in the stream of product on the

conveyor. When activated the sensors display and analog output signals will be
“frozen” for the time the hold input is active.

10.1 Serial Communications

The Sensor provides a choice of serial output formats, RS232 and RS485.

RS232 is suitable for a single sensor to computer connection over a distance of up to 100 feet (30

meters).

RS485 is suitable for connection of up to 16 sensors on a cable up to 3 miles (4.86Km) long.

10.1.1 Serial Requirements

1. RS232/485: Baud Rate: 300 to 38400 (9600 default)

Parity: None
Data Bits: 8
Stop Bits: 1

2. Cables: RS 232: 9 pin ‘D’ serial cable wired pin to pin

RS 485: Shielded twisted pair.

33

MCT300 RS485 QUICK START GUIDE

EXAMPLE OF RS485 CONNECTION TO

MCT SERIES

RS485 CONVERTER

AT HOST PC

1

6

5

2

34

GND

FIRST SENSOR

SENSOR n

1

6

5

2

34

485 A (IN)

485 B (IN)

485 A (IN)

485 B (IN)

485 A (OUT)

485 B (OUT)

TD(B)

TD(A)

ALL 3 JUMPERS

MUST BE

PLACED ON

LAST SENSOR

IF HOST PC

DOES NOT

HAVE PULLUPS

PULLDOWNS.

OR

LINK4

+12V

GND

LINK3

LINK2

RS485

Termination

TO LAST SENSOR

GND

34

Rear of Curcuit Board

Example of connecting a B&B RS485 Converter to the MCT300 OI connector.

35

11.0 Customer Wiring Connections

All wiring connections are made to three quick-disconnect connectors mounted on the rear of the sensor
enclosure. These connectors may have different signals coming to them from inside the sensor. The
following diagrams show the standard configurations for these connectors.

POWER

Terminal

#

1 Live
2 Neutral

Gnd

Symbol

ANALOG Connector (4-20mA outputs) – Standard configuration

Terminal

#

1

Input

Ground

Signal

Gnd

Constituent #

1

2 4-20 mA

1

3 Gnd 2 (1 if sensor is in single mode)
4 4-20 mA 2 (1 if sensor is in single mode)
5 Gnd 3 (not operational in single mode)
6 4-20 mA 3 (not operational in single mode)

ANALOG Connector (0-10V outputs) – Alternate 1
Terminal # Signal Constituent #

1 Gnd 1
2 0-10V 1
3 Gnd 2 (1 if sensor is in single mode)
4 0-10 V 2 (1 if sensor is in single mode)
5 Gnd 3 (not operational in single mode)
6 0-10 V 3 (not operational in single mode)

36

DIGITAL Connector (RS232, RS485 & Hold) – Standard Configuration

Terminal #

1

2 RS485 B
3 RS232 Tx
4 RS232 Rx
5 Digital Gnd
6 Hold Input

Note:
When sensors are fitted with network interface cards this Digital connector may be wired
to meet the network format or it may be replaced with the network’s approved connector.

Signal

RS485 A

37

Rear of Sensor

38

Rear Analog/Digital Connector

Use the end of the Dust Cover to un-screw the ‘Retaining Ring’ in order to remove the 6 pin
connector.

The ‘Flat part’ of the connect fits into the ‘Housing’, mating with a similar ‘Flat part’.

39

12.0 Maintenance

Tools required for maintenance on the MCT sensor and Operator Interface are:

Flat blade screwdriver
7/64” Allen Key
3/32” Allen Key
5/64’ Allen key
1/16” Allen Key

12.1 Routine Maintenance

The MCT requires little or no routine maintenance.

12.1.1Sensor Window

The ‘Clean Window Software’ continuously monitors the cleanliness of the MCT window.
When the system detects a dirty window, a warning message will be displayed on the OI screen.
The window needs to be cleaned to remove the contamination from it.
Use a soft lint-free cloth or paper towel and glass cleaner fluid to remove dirt from the window.

DO NOT USE AN ABRASIVE CLEANER TO CLEAN THE WINDOW.

The window may be cleaned with the air purge shroud in place or the shroud may be removed to
fully expose the window. Remove the four Allen screws that hold the shroud to the sensor. Clean
the window and re-fit the shroud.

12.2 Self Diagnostic Warnings

The MCT has built-in self–diagnostic software that monitors key elements of the sensor’s
operation. When this software detects a fault, it transmits a fault status bit out the serial port and
presents a warning message on the Operator Interface. If the optional maintenance alarm board is
fitted the alarm contact will also be triggered.

The screen warning messages are:

40

Screen Message Description Corrective Action

High Signals Too much signal Check for proper product placement
or no product

Low Signals Too little signal Check for proper product placement
or no product

High Motor Speed Motor rpm above 1200 Call PSC

Low Motor Speed Motor Speed below 1000 Call PSC

Motor stopped Wheel motion not detected Call PSC

VCC Fault High/Low 5v power Measure 5v with multimeter

VN Fault High/Low –15v power Measure –15v with multimeter

VP Fault High/Low +15v power Measure +15v with multimeter

SPI Fault No communication to OI Check cable to OI

Dirty Window Window contamination Clean the window

High Temp Internal Temp > 65ْ Fit Cooling System

12.3 Corrective Maintenance

The MCT sensor and Operator Interface are modular in construction and an experienced electronic
maintenance technician can replace any damaged components.

The following components may be replaced in the field:

Main Circuit Board
Lamp
Filter Wheel Motor
Detector
Power Supply
Dome Mirror

Replacement of these parts requires that the MCT be removed from its plant location and brought to a
clean room or maintenance shop.

41

MCT Enclosure

The MCT sensor has two-part cast aluminum housing. The two sections are held together by four
machine screws. These screws are held captive in the bottom half of the housing. Unscrew the four
screws and place the upper half to one side.

Lamp Replacement

This operation requires that the optical bench be removed from the bottom half of the sensor
enclosure.

1. Unplug the analog cable from the main PCB.

2. Unplug the digital cable from the main PCB.

3. Locate the 6 screws that hold the optical bench into the enclosure.

4. Remove these screws and gently lift out the optical bench. The optical bench will still be

connected to the power supply by the AC input cable. Remove this cable from the power supply.

5. Remove the two Allen screws that hold the power supply to the main board.

6. Disconnect the DC cable harness from the main board.

7. Unplug the lamp from the power supply.

8. Lay the sensor on its side and locate the two Allen screws that hold the lamp into the optical

bench.

9. Remove both screws and take out the damaged lamp.

10. Install a new lamp assembly; do not touch the lamp glass with bare fingers.

11. Re-fit the retaining screws.

12. Re-connect the lamp to the power supply.

13. Re-connect the power supply harness and the power supply assembly to the main board.

14. Re-connect the AC cable to the power supply.

15. Re-install the optical bench in the bottom half of the enclosure.

16. Re-connect the Analog and digital cable to their respective sockets on the main board.

Motor Replacement

This operation requires that the optical bench be removed from the bottom half of the sensor
enclosure.

1. Unplug the analog cable from the main PCB.

2. Unplug the digital cable from the main PCB.

3. Locate the 6 screws that hold the optical bench into the enclosure.

4. Remove these screws and gently lift out the optical bench. The optical bench will still be

connected to the power supply by the AC input cable. Remove this cable from the power supply.

5. Remove the two Allen screws that hold the power supply to the main board.

6. Disconnect the DC cable harness from the main board.

7. Remove the four Allen crews that hold the dome mirror/detector plate assembly to the optical

bench. Disconnect the detector from the main board and set the assembly aside.

8. Remove the two Allen screws that hold the motor in the optical bench. Unplug the old motor

from the main board.

42

9. Install the new motor; connect it to the main board.

10. Re-install the dome mirror/detector plate assembly and re-connect the detector to the main board.

11. Re-connect the power supply harness and the power supply assembly to the main board.

12. Re-connect the AC cable to the power supply.

13. Re-install the optical bench in the bottom half of the enclosure.

14. Re-connect the Analog and digital cable to their respective sockets on the main board.

Main Board Replacement

This operation does not require the optical bench to be removed from the sensor enclosure.

1. Remove the top half of the sensor enclosure.

2. Remove the four Allen screws that hold the main board to the optical bench.

3. Gently lift up the main board and disconnect all the cable connectors from the board.

4. Connect the various connectors to the main board and locate the new board on the top of the

optical bench.

5. Re-install the four Allen screws.

Note: A main board replacement will require that many of the MCT setup and calibration
parameters, be re-configured to match the new boards’ operation with that of the original board.
Consult PSC for advice on this.

Detector Replacement

This operation does not require the optical bench to be removed from the sensor enclosure.

1. Remove the top cover from the sensor.

2. Unplug the detector from the main board.

3. Remove the two Allen screws that hold the detector in place.

4. Install a new detector and re-fit the Allen screws.

5. Plug the detector to the main board.

Power Supply Replacement

This operation requires that the optical bench be removed from the bottom half of the sensor
enclosure.

1. Unplug the analog cable from the main PCB.

2. Unplug the digital cable from the main PCB.

3. Locate the 6 screws that hold the optical bench into the enclosure.

4. Remove these screws and gently lift out the optical bench. The optical bench will still be

connected to the power supply by the AC input cable. Remove this cable from the power supply.

5. Remove the two Allen screws that hold the power supply to the main board.

6. Disconnect the DC cable harness from the main board.

7. Lay the power supply assembly on the bench and take out the power supply module.

43

8. Install a new power supply on the plate. Make sure the insulating paper is fitted under the power

supply.

9. Re-connect the power supply harness and the power supply assembly to the main board.

10. Re-connect the AC cable to the power supply.

11. Re-install the optical bench in the bottom half of the enclosure.

12. Re-connect the Analog and digital cable to their respective sockets on the main board.

44

12.4 Replacement Parts List

Sensor

Description

P/N

300035-2 Main Board (A1149)

200025 Power Supply (GPC408)

200022A Detector Assembly

200019A Lamp Assembly

200056 Motor Assembly

200013 Dome Mirror

200010A Sensor OI Cable Connector Assembly

300027A Analog I/O Connector Assembly

300028A Digital I/O Connector Assembly

300002A Power Connector Assembly

300030 Analog/Digital Cable Plug

300032A AC Power Cord – USA

300033A AC Power Cord – UK

300034A AC Power Cord – Europe

300031 I/O Connector Dust Cover

300003A DC Power Harness

45

Wall Operator Interface

P/N Description

210002 Display Module (IEE)

210040 Interface Board (IEE)

210008 Cable Connector Assembly

210041 Keypad Board

210021 Display Module (Graphic)

210023 Graphic Display Interface PCB

46

Appendix 1 – Special Features

Backdoor Password

If the password for the MCT has been forgotten is unknown then a special ‘backdoor’ password will
allow the user/engineer to view and change the old password.

To use this ‘backdoor’ system proceed as follows:

Press Display Rotate to present a single constituent Home screen.

Scroll DOWN to MISCELLANEOUS.

At the Password request enter the number 6811, then press ENTER.

This will access the MISCELLANEOUS menu.

Scroll down to NEW PASSWORD to see what the password was set to.

Change it to any new password and press ENTER to save the new number.

Keypad Lock

All the keys on the Operator Interface may be ‘locked’ to prevent unauthorized users from making any
adjustments. Holding down the UP arrow and pressing ENTER activates the ‘lock’. De-activation of
the ‘lock’ is made with the same keystrokes, followed by entry of the Password. The Cal Code key will
continue to operate when the sensor has a ‘locked’ keypad.

Hidden Menus for the MCT via Operator Interface

Engineering Menu

The MCT sensors contain a ‘hidden’ engineering menu that contains the filter algorithm coefficients and
several other customization functions of the sensor.

This menu should only be accessed by people experienced in the setup of the MCT for specific
applications.

47

Access to the Engineering Menu is gained by using a special password.

At any password request enter the number 2882 and press ENTER. This will allow access to the menu.

Preamp Gain

The MCT has a software adjustable preamp gain factor. This factor is the gain applied to the filter
signals coming from the detector.
The amplification applied to the signals is:

Amplification =

225

Gain Factor

The correct setup for the MCT is to have the largest filter signal, after amplification, to be 8.0 volts
when viewing the product to be measured. This value is achieved by adjusting the gain factor.

Algorithms

The MCT uses the 6 filter signals in a pre-programmed algorithm. By selection of the correct filter
coefficients, the different algorithms may be formed for the measured constituents

Basic Algorithm:

C1F1+C2F2 + C3F3 + C4F4 + C5F5+C6F6
K1F1+K2F2+K3F3+K4F4+K5F5+K6F6

The filters on the top of the equation are all reference filters
The filters on the bottom of the equation are all reference filters.
Each filter has associated with it a coefficient, C1 – C6 or K1-K6. These coefficients can be set to a
value between +/-999. Typically coefficients will range between 0 and + 1.0

By setting the coefficients of the filters, different algorithms may be made for the constituents being
measured by the MCT.

Changes to the factory set coefficients requires the data sheet that was supplied with the MCT 300 as it
lists the filters fitted to the MCT 300.

Viewing and changing the coefficients for the algorithms

From the Gain Screen, press the DOWN arrow each time to view the coefficients set for the constituent
shown on the top line of the display.
Use the Display Rotate key to switch to the coefficients set for the second constituent.

48

To change a value, move the cursor under the number and scroll up/down to set a new value. Press
ENTER to save this value

The first constituent will use the measure filter F1
and will thus have C1=1 and C6=0.0 the
coefficients for C2-C5 will variable, depending on
the application of the sensor.

Moisture = 12.89% 01
C1: 1.0

Moisture = 12.89% 01
C2: 0.0

Pressing Display Rotate will show the coefficients
used by the second constituent. This algorithm
will use F6 as the measure filter so F1=0.0 and
F6=1.0. Again the coefficients for F2-F5 will
depend on the application.

Oil = 25.8% 01
C1: 0.0

Oil: 25.8% 01
C6: 1.0

Algorithm Math Treatment

The MCT is capable of using two styles of math treatment of the basic algorithm.

Linear: C1F1 …..+ C6F6

KC1F1 + K6F6

Log: Log C1F1….+ C6F6

K1F1 + K6F6

The MCT uses the linear math treatment as default.

The log treatment is used when the MCT is required to measure over very large ranges where the linear
treatment may give a slightly non-linear response. The log treatment will linearize the MCT response
and provide more accuracy in wide measurement applications.

Math Selection Codes

Selecting the following code makes selection of the desired math treatment:

49

Math Code

Linear 0

Log 1

Press Enter to save

Instrument Network ID #

This line allows each sensor to be
given a discrete number, when
multiple sensors are connected
using RS485.

Moisture: 3.3% 01
Algorithm (1=Log): 0

Moisture: 3.6% 01
Inst ID: 1

Main Board Serial #

This lists the serial number of the
main circuit board installed in the
sensor.

Software Revision

This lists the revision of the
software fitted to the sensor.

Total CLR EEPROM

Selecting Y will set all the values
stored in EEPROM to their default
values.

Sampler Mode

This line allows the sensor to be
set to operate in the Sampler
Mode. It requires the power
sampler accessory to be fitted to
the sensor. Refer to Appendix II
for full details of the smapler set­up.

Moisture: 3.6% 01
Ser No.

Moisture: 3.6% 01
MT 200 V2.11

Moisture: 3.6% 01
Total CLR EEPROM Y/N

Moisture: 3.6% 01
Sampler: Y/N

Dual Mode

The MCT May be switched Single
to Dual Mode. The triple mode
requires a different EPROM to be
fitted to the sensor.

Language Selection

The MCT display system may be
set to use a different language to
English. The EPROM fitted to the
MCT will allow the language to be
switched betweeen English and
one of the following languages:
German, French, Spanish or
Portuguese

Dry Basis

The MCT may be setup to present
moisture readings as a % of the dry
material. Selection of Y will
activate this 'Dry basis' readout.
Refer to Appendix III for greater
details of this 'Dry Basis' readout.

Moisture: 3.6% 01
Dual: Y/N

Moisture: 3.6% 01
Language: Y/N

Moisture: 3.6% 01
Dry: Y/N

Max Cal

The number of Calibration
Channels may be set to any
number between 1 and 10. Move
the cursor over the number set
desired value. Press ENTER to
save the value.

Moisture: 3.6% 01
Max Cal: 10

51

Averaging Modes

The MCT 300 has a choice of three methods of ‘averaging’ the constituent readings, these are:

Damping: This is a time constant based ‘smoothing’ of the readings.

Real Time Averaging: This is a ‘pipeline’ average of the readings over a selected time.

Gated: This is an ‘event’ based average of the sensor readings. The event being a contact

closure at the sensors ‘hold’ input.

Selection of the 'averaging' mode
is made by using the relevant code
number

Mode Code

Damping 0

RTA 1

Gated 2

Press ENTER to save

Moisture: 3.6% 01
Damp/RTA/Gate: 0

52

g

Dead Band

The MCT has built-in Smoothing
Factor that operates at a +/- level
either side of the sensor reading.
The default value is 0.2, the
minimum is 0.0 and the maximuim
is 1.0

Moisture: 3.6% 01
Dead Band: 0.2

Reset

Press ENTER to RESET the
software. Customized settings will
not be altered.

To exit the Engineering Menu, press the LEFT arrow key TWICE

Moisture: 3.6% 01
Enter for Reset

Appendix II – Powder Sampler Accessory

The MCT Powder Sampler is an accessory that allows the MCT sensor to make measurements on
products that are free falling inside enclosed ducts. It consists of a stainless steel tube, on the end of,
which is a sample cup complete with glass viewing window.
The sampler’s routine is controlled by s software routine in the sensor and an external solenoid valve.
The routine allows the cup to fill, the sensor to make and average reading the sample is then ejected
from the cup and the sequence repeats. A typical cycle time is 40 seconds

Installation

The sampler should be located in the process duct so that the sampler cup extends into the product flow.

Insertion Depth

The length of the welding spud supplied with the sampler determines the insertion depth of the sampler.
The following table gives the relationship between the length of the welding spud and the insertion
depth of the sampler.

Spud Len
(inches) (mm)

4.0 102

3.5 89

3.0 76

2.5 64

2.0 51

1.5 38

th

Insertion Depth

(inches) (mm)

4.0 102

4.5 114

5.0 127

5.5 140

6.0 152

53

6.5 165

Installation of the welding spud.

• Cut a 3.25” (82.5 mm) hole in the duct at the desired location.

• Cut the welding spud to the length that will give the insertion depth desired.

• Weld the spud to the duct around the hole. Ensure that one of the boltholes is located at the

12 o’clock position.

• Bolt the sampler to the spud.

• Bolt the sensor to the sampler in the desired orientation. It may be installed in one of four

positions. Sensor up, down, right or left.

Install a support bracket for the sensor. The sensor must not be left to hang
from the sampler without any additional support!

The solenoid box should be mounted close to the installation of the sensor & sampler.
A ¼” (6 mm) airline should be connected to inlet air port in the solenoid enclosure, and an air line from
the solenoid box air outlet to the ‘tee’ fitting on the sampler.

The Operator Interface should be mounted at a convenient location for operator interaction and both the
sensor and Operator Interface should be connected to 110V or 220V as designated on the serial tag.

Connect a three-wire cable between the operator interface plug and the terminal strip in the solenoid
enclosure as shown in the attached drawing.

Sequence Timer Setup

The time sequence for the cycles of the sampler is held in the sensor memory. Access to the times are
made via the Engineering Menu selected from the Operator Interface. The times control the sequence
that allows the sampler to fill with sample, the sensor to take a reading and then the sample to be
ejected.

The sequence of events is as follows:

Purge (Sample is blown out of the sample cup)
Fill (Sample is allowed to fill the sample cup)
Measure/sample (sensor will take a moisture reading)
Delay (delay between the presentation of the moisture reading and the start of a new cycle)

It will take one cycle of the sampler before the sensor will present the moisture content of the sampled
product.

The factory set time sequence of the sequence timer is as follows:

54

Purge = 10 seconds
Fill = 20 seconds
Sample = 10 seconds
Delay = 2 seconds.

These times can be adjusted to optimize the sequence to the flow rate of the product.

Changing the Sequence Times

Use the Operator Interface.
Use the down arrow to move the bottom line of the display to Miscellaneous.
Press the right arrow to enter this selection.
At the password request, set the password to 2882, then press ENTER.
This will access the Engineering menu.

The menu contains many items that if changed will influence how the sensor operates
Use the down arrow to scroll through the selections until the display shows:

SAMPLER: Y/N

Press the right arrow to make the cursor flash on Y and press ENTER to activate the sampler mode.
The sensor software will normally have been pre-set on delivery to make the sensor operate in the
sampler mode, in which case the display will show:

SAMPLER: ON

Press the down arrow to access the times for the various cycles.

SAMP PURGE = 0010

Use the right arrow to move the cursor under the digits, up/down arrows to set a new time and press
ENTER to set the time.
Press the down arrow to see the next time.

55

SAMP FILL = 0020

Repeat as per the Samp Purge.

Press the down arrow to see the next time.

SAMP MEAS = 0010

Repeat as per Samp Purge.

Press the down arrow to see the next time.

SAM DELAY = 0002

Repeat as per Samp Purge.

56

Connections for Sampler

MOISTURE : 25.4 % 01
CONSTIT 2 : 35.6 % 01

AIR PURGE SOLENOID

RED

GRN

SOLENOID

RED

POWER OUT

LINE

EARTH

NEUTRAL

2

1

OPERATOR DISPLAY

BOX

21

POWER IN

LINE
EARTH

NEUTRAL

Sampler (Air

purge)

connections.

To activate Sampler mode, using the Operator Interface, proceed to Engineering and cursor down until the display
reads:

SAMPLER Y/N
Place cursor over the Y and press Enter.
The display will briefly flash

SAMPLER ON
Cursor down one and the display will read:

SAMP PURGE = 0010
This is the time, in seconds that the air purge will be active.
Move down one more and the display will read:

SAMP FILL = 0020
This is the time allowed to fill the sampler with product.
Next position down display will read:

SAMP MEAS = 0010
This is the time allowed to take a measurement.
Next, and last, is the

SAMP DELAY = 0002
This is a delay before starting the cycle all over again. All the above values are modifiable.

57

Appendix III – Dry Basis Measurements

It is common for some industries, particularly the wood panel industry to calculate the moisture in the
wood particles as a percentage of the dry material rather than a percentage of the wet material.

Wet % = Wet Weight – Dry Weight
Wet Weight

Dry % = Wet Weight – Dry Weight
Dry Weight

Conversion from Wet % to Dry % is as follows:

% Dry = % Wet

x 100

(100-% Wet)

Conversion from % Dry to % wet is as follows:

% Wet = % Dry

x 100

(100 + % Dry

The MCT may be configured to present moisture on a dry basis by selecting DRY: Y in the
Engineering Menu.

This selection does the following to the sensor parameters:

1. The displayed moisture readings are presented in the Dry Basis.

2. An asterisk appears in front of the ‘Moisture’ word in the display to alert users that the sensor is

in the DRY mode.

3. The Calibration routine is modified to allow dry basis MCT and laboratory values to be used.

Online Trim Adjustments

When operating in the Dry Basis Mode, a change to the Zero parameter of the calibration will not make
the same adjustment to the moisture reading. This is because the moisture reading is being modified by
the wet to dry conversion factor.
To allow users to make a simple trim adjustment to the sensors reading and additional calibration
parameter is presented in the Cal parameters when in the Dry Basis Mode.

This is: OFFSET.

The default setting for it is 0.00.
To make a reduction in the displayed moisture reading of 0.5, make the OFFSET be –0.5.
To make an increase to the moisture reading of 0.8, make the OFFSET be + 0.8
When initially calibrating a sensor ALWAYS set the OFFSET to 0.00

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Appendix IV - Calibration Check Standard – MCT Series

The Process Sensors Calibration Check Standard provide users of the MCT Series NIR Transmitters
with a quick way of verifying that the sensor’s calibration has not altered over time.

The standard simulates moisture levels as follows:

White: Low Moisture

Blue: High Moisture

Connection of the Standard to the MCT Sensor

Locate the standard on the light shroud. Make sure that the two fixed pins mate with the holes in the
light tube and then tighten the thumbscrew to ‘lock’ the standard in place.

How to Use the Calibration Check Standards

The Check Standards should be used on a periodic basis, daily, weekly or monthly, to check that the
sensor is remaining stable and thus giving the correct moisture values.

The standards may be used in two ways:

a) As a quick low/high check of the sensors’ reading. In this manner it allows users to gain

confidence in the stability of the sensor and in the accuracy of the initial calibration.

b) As a way of transferring the calibration from one sensor to another. In this manner a

newly purchased or repaired sensor can be quickly put into operation without the need for
actual samples of product.

Quick Calibration Check

Using the standards to check the stability of the MCT requires that it be correctly calibrated using
samples of the product(s) on which it is measuring.
As soon as the sensor is satisfactorily calibrated, the reading of the low and high sides of the standard
need to be noted.

1. Clip the standard onto the light tube.

2. Rotate the standard selector knob to the LOW position and tighten the locking nut.

3. With the MCT set on the same CAL Channel as used to measure the product, make a note of the

MCT reading

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4. Rotate the standard selector knob to the HIGH position and lock into place. Note the MCT

reading.

At any time in the future, inserting the check standard, and selecting the respective reflectors, will give
the same values as previously noted above. If the MCT does not give the same readings to +/- 0.2, then
the calibration of the MCT may be in error.

Using the Check Standards with multiple calibration channels

When the MCT is operating with multiple calibration codes, it is important to only use the check
standard on the same Cal Channel. The differences in the calibration coefficients for the various
products (zero & span) will give different readings for the check standards.

Users may wish to use a vacant Cal Channel as a designated ‘CAL CHECK CHANNEL’. Doing this
will allow two convenient values to be setup for the low and high standards.

To use this method, decide on a low reading for the low standard, say 2.0 and a high value for the high
standard, say 8.0.
Now use the calibration development routine to calculate the zero & span values that make the MCT
sensor read the 2.0 and 8.0 values. As the Cal Development routine requires 3 data pairs, one set of
values needs to be entered twice.
Finally store this zero & span value in the CAL CHECK CHANNEL, say # 9.

When using the standards make sure that this CAL CHECK CHANNEL is selected prior to inserting the
standards.

Calibration Transfer

Once the values given by the two standards are known for a specific product calibration, they can be
used as ‘stable samples’ for calibrating other sensors.

The known values for the standards should be used as the LAB values in the Cal Development routine.

1. For a new or repaired sensor set the span to 25.0.

2. Select the Low standard and note the MCT reading.

3. Select the High standard and note the MCT reading.

4. Select the CAL DEVELOPMENT routine.

5. Enter the data pairs of MCT reading and known standard values. Enter the High standard twice

to get the 3 data pairs.

6. Compute the zero and span values that will make the sensor read the values of the standards.

7. Save these settings in the desired Cal Channel.

Appendix V - Serial Communications Protocol for MCT 300

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Cables

RS232: Via shielded twisted pair.
Connection:

Signal Digital

Connector #

9Pin ‘D’

Connector #

TX 3 2
RX 4 3

GND 5 5

RS485: Via a shielded twisted pair.
Connection: Refer to Section 11.0

Communications

Programmers writing software should refer to the command list below. The communications is a simple
request/reply system. The host computer sends a request and the MCT 300 sends a reply. Hence there
are no special protocols or handshaking involved and it is also quite easy for a person to communicate
with the MCT 300 via a simple terminal.

The timing of the replies it deliberately locked to the wheel revolutions and hence the maximum
communications rate is approx. 18 requests/replies per second. Should the wheel or motor fail then a
timing software system of 10 loops per second takes over so communications is not lost.

When using RS485 a leading “$” or “#” followed by a single, alphanumeric “ID” character wakes up the
target unit and it responds with a reply. Each unit on the RS485 daisy chain has a unique ID and hence
all units may be accessed across a simple single twisted pair cable. Normally ID’s are A-Z, and the
default ID is 1. Hence when adding more MCT 300’s to an existing and running RS485 system, the user
will look for the ID of the unit and assign it a new ID. This process can be repeated for each new unit
added.

The BAUD rate may be changed by a serial command, but this should not be necessary as the filter data
can be extracted at the default 9600 rate and the BAUD rate is not the limiting factor at this
communications speed. Maximum BAUD rate is 57600.

The communications circuits default to RS485 but circuits automatically detects RS232 signals and
when detected the serial stream is automatically routed to the RS232 input and the RS485 goes into a
high impedance state. RS232 style communications will work with or without the ID. This can be useful
as an engineer can walk up to a system, which is on RS485, and plugs in a laptop and immediately starts
a session, man to machine, with the MCT 300. When the RS232 is unplugged the MCT 300
automatically returns to RS485 and the first # or $ will force the ID system to operate again.

Communications Protocol

RAW? RAW?c where c is constituent 0-1. Raw moisture (no SPAN or ZERO)

61

SPAN= SPAN=n c s.ss where n is CAL (1-9 or 50 depending on version) c is constituent 0-1

(or 0-2 for three constituent)
SPAN? SPAN?n c
DAMP= DAMP=n d.dd Response time of the measured signal
DAMP? DAMP?n
WTIM Returns the wheel revolution time in uS.
GAIN= GAIN=n where n =1 to 255. Actual Gain=(255/n)
GAIN?
VER? EPROM version.
ID= Format ID=n where n must be alphanumeric.
ID? Format ANHI=n x.xxx where n=0 for DAC1 and n=1 for DAC2.
ANHI= ANHI=n a.aa where n is CAL (1-9 or 50 depending on version) c is constituent 0-1

(or 0-2 for three constituent)
ANHI? ANHI?n
ANLO= Same
ANLO?
VCC? Measured 5vdc .
VP? Measured +15vdc.
VN? Measured –15vdc.
ZERO= ZERO=n c s.ss where n is CAL (1-9 or 50 depending on version) c is constituent 0-1
ZERO? ZERO?n c where n is CAL (1-9 or 50 depending on version) c is constituent 0-1
LOG= LOG=c x where c is constituent 0-1 x=1 for LOG
LOG?
HOLD? Reads HOLD switch input level.
DTYPE= DTYPE=n n=0,1,2 Sets DAMP mode
DTYPE?
SERNO= Electronics serial number (string)
SERNO?
CAL= CAL=n n is selection 1-9 or 50 depending on version (CAL CODE)
CAL?
SIG1? Returns 1 revolution filter data (fast) as string of 12 hex numbers of 3 chars each. To

convert to 0-10V values divide hex number by 409.5. Filter data string is

F1F1’F2F2’F3F3’F4F4’F5F5’F6F6’

where Fn is signal from the product and Fn’ is the internal compensation signal.
SIG4? Returns 4 revolution data (avg) as string of 12 hex numbers of 3 chars each. To

convert to 0-10V values divide hex number by 409.5. Filter data string is

F1F1’F2F2’F3F3’F4F4’F5F5’F6F6’ where Fn is signal from the product and Fn’ is

the internal compensation signal.
TEMP? Read thermistor volts, note colder gives higher volts.
AGC Call the automatic GAIN sub this sets best gain in EEPROM.
MAX? Returns largest of all filter signals, used to see if GAIN is OK.
BAUD= Replies at current BAUD then flips to new BAUD.
CODE= Set Password
CODE? Read Password.

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F2= F2=c f.ff where c is constituent 0-1
F2?
MOIST? MOIST?c c=const 0 or 2, where 0 = constituent 1 (e.g. moisture) and 1 = constituent

2 (e.g. oil or coat weight), fault status of 3 hex digits is appended.
CDRV= Take over cooler drive.
CDRV? Read cooler drive (volts)
CTARG= Cooler target volts typically 3.2. Note volts increase with colder temp.
CTARG?
DIG= Set display digits 0-3
DIG?
C1= C1=c f.ff where c is constituent 0-2 C values are the constants applied to each filter

value in the algorithms.
C1?
C2= C2=c f.ff where c is constituent 0-2
C2?
C3=
C3?
C4=
C4?
C5=
C5?
C6=
C6?
AVG? AVG?c c=0 returns MOISTURE avg c=1 returns OIL
DUAL= DUAL=1 for dual constituent, DUAL=0 for single constituent
DUAL?
PROD= PROD=c ppppppppp where c is the Cal Code 0-9 or 50 depending on version and

ppp is a string of 9 characters.
PROD? PROD?c returns the string for the selected Cal Code

(Constituent variable is 0-1 for 2 constituent software and 0-2 for three constituent)

Maximum/Minimum values (RS232/485 Commands)

ZERO – 9999to + 9999 (float)
SPAN – 999999to + 999999 (float)
F1, F2 and C1 to C6 -9999 to + 9999 (float)
DAC 0-10v (float)
GAIN 1-255 (integer)
DAMP 99 (integer)
CAL 1-9 or 50 depending on version (integer)

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Abbreviated RS232/485 Commands

The following listing is the minimum set of commands that a HOST COMPUTER program will require
to be able to display the measured constituent, select different calibration channels, make changes to the
calibration coefficients (zero & span) and review sensor diagnostics.

Constituent

MOIST?

MOIST?c c=const 0 or 1, where 0 = constituent 1 (e.g. moisture) and 1 =

constituent 2 (e.g. oil or coat weight), fault stat 2HEX is appended.

Calibration Parameters

CAL= CAL=n n is selection 1-9 or 50 depending on version (CAL CODE)
CAL?
ZERO= ZERO=n c s.ss where n is CAL (1-9 or 50 depending on version) c is

constituent 0-1

ZERO? ZERO?n c where n is CAL (1-9 or 50 depending on version) c is

constituent 0-1

SPAN= SPAN=n c s.ss where n is CAL (1-9 or 50 depending on version) c is

constituent 0-1
SPAN? SPAN?n c
DAMP=
DAMP?
ANHI= Format ANHI=n x.xxx where n=0 for DAC1 and n=1 for DAC2.
ANHI?
ANLO=
ANLO?

Diagnostics

ID= Format ID=n where n must be alphanumeric. 1-9,A-Z,a-z
ID?
VER? EPROM version.

WTIM Returns the wheel revolution time in uS.
VCC? Measured 5vdc .
VP? Measured +15vdc.
VN? Measured –15vdc.
TEMP?

Read thermistor volts, note colder gives higher volts.

CDRV?

Read cooler drive (volts)

SIG1? Returns 1 revolution filter data (fast) as string of 12 hex numbers of 3 chars

each. To convert to 0-10V values divide hex number by 409.5. Filter data
string is F1F1’F2F2’F3F3’F4F4’F5F5’F6F6’ where Fn is signal from the

product and Fn’ is the internal compensation signal.

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Appendix VI - PI Controller Output

The MCT series gauges include a ‘Controller Output’ that may be used to make a change to process
machinery to achieve a desired moisture (process variable) level. This ‘Controller Output’ operates
using a PI control algorithm.

This PI algorithm must be ‘tuned’ for the particular process loop. Without such tuning, it will not
be able to function correctly.

The PI Control Algorithm

The PI control algorithm comprises three elements:

Proportional – also known as Gain

Integral – also known as Reset

Dead-Band

The algorithm used in the MCT series gauge uses a combination of these three elements:

Proportional and Integral

Proportional, Integral and Dead-Band

Selecting the Controller Output

Selection of the Controller Output is made via the Engineering Menu of the Operator Interface:

At any Password request enter a Password of 2882 and press the ENTER key.

Use the DOWN Arrow to scroll through the menu selections till the display reads:

CONTROL: Y/N

Move the cursor over the Y and press the ENTER key

The display will momentarily show:

CONTROL: ON

65

When selected the Controller Output will be available on the second
analog output channel of the sensor

The display will then show the following control parameters:

CON TARG: 0.00%

This is the set point target. Its default value is 0.000
Minimum value is 0.00
Maximum value is 100.00

CON PROP: 1.00

This is the Gain of the control output. It is the ‘step’ change in the output that is made to correct the
difference between the measured variable and the set point
Gain = Output/Input
Increasing the value will cause the output to move in a larger step.
Minimum value is 0.0
Maximum value is 99.99

CON INT: 1.00 sec

This is the automatic reset that moves the output whenever there is an error between the process variable
and the set point.
The value is measured in SECONDS. This is the time it takes the reset (or integral) element to repeat the
action of the proportional element.
The lower the value the faster the proportional action takes place, the higher the value the less
frequently it takes place.
Default value is 1.00
Minimum Value is 0.00
Maximum Value is 99.99

CON DEAD: 0.00%

This is the DEAD-Band of the control system. When the measured variable is inside the Dead-Band the
integral reset will stop.
The Dead-Band is a value +/- either side of the set point.
Default value is 0.00
Minimum value is 0.00
Maximum value is 99.99

66

Control Output Signals

The output signal from the controller feature is either a DC voltage or current depending on the
terminals used.

Voltage:

The voltage is a 0 –10V signal where:

5v is provided when the measured variable is at the set point value.
ABOVE 5V when the process variable is LESS than the set point.
BELOW 5V when the process variable is GREATER than the set point.

Current:

The current is a 4-20mA signal where:

12mA is provided when the measured variable is at the set point.
ABOVE 12mA when the process variable is LESS than the set point.

BELOW 12ma when the process variable is GREATER than the set point.

67

Appendix VII – Outline Drawings

68

Appendix VIII

Product Temperature Option IRt/c

P/N 240-021

The MCT sensor may be fitted with a non-contact infrared temperature sensor that will measure the temperature of
the product surface as it passes the MCT.
The temperature sensor and associated interface circuit card are mounted inside the MCT case. The sensor is
installed in a polymeric sight window inside the sensor window shroud.
The IRt/c sensor gives an output that is similar to that from a thermocouple. This signal is then linearized by the
interface electronics and the resulting temperature measurement is connected to the MCT electronics. The
temperature measurement is then presented on the Operator Interface and through the MCT sensor’s analog and
digital outputs.

Temperature Sensor Specifications

Measurement Range: 20-120C (70-250F)
Accuracy: +/- 0.3C (0.5F)
Field of View: 3:1 (temp. spot = distance from product/3)
Spectral Response: 6.5 to 14 microns

Calibration

The IRt/c and interface card are pre-calibrated for the measurement range of 20-120C. All infrared-based
temperature sensors are influenced by the emissivity of the material they are measuring. Due to these emissivity
variations between materials there may be a need to adjust the ‘zero’ or ‘offset’ of the IRt/c’s calibration so as to
make the temperature reading correct for the desired material. The following procedure is recommended for the
adjustment of the temperature reading.

1. Install the MCT sensor above the product at the desired height.

2. Make sure that the product passing the MCT is at the normal operating temperature.

3. Using an acceptable ‘absolute’ temperature measuring device, measure the surface temperature of the

product.

4. Using the Operator Interface, select the TEMPERATURE menu.

Select CAL PARAMETERS.
Select Zero: 00.0
Adjust the zero setting up or down to make the temperature readings on the display match that given by the
‘absolute’ device.

DO NOT ADJUST THE SPAN SETTING (WHICH NEEDS TO BE LEFT AT 1.0) AS THIS WILL
INFLUENCE THE ACCURACY OF THE READING.

69

Analog Outputs

The MCT sensor provides a 4-20mA output signal for the temperature reading. Even though the temperature sensor
is set up to measure over 20-120C (70-250F), the 4-20mA signal may be scaled for any desired range within these
limits.

Using the Operator Interface, select the TEMPERATURE menu.
Select CAL PARAMETERS
Select ANALOG HI (2): 100.00
Set the number to the temperature value at which 20mA is desired.
Press ENTER to save the value
Select ANALOG LO (2): 0.0
Set the temperature value at which 4mA is desired.
Press ENTER to save the value.

Return to the HOME screen

Component Parts

P/N Description

240-22 Interface PCB

240-030 IRt/c Temperature Sensor

70

Declaration of Conformity

European Standards

Equipment: MCT Series of Infrared absorption transmitters

The above equipment complies with the following European Directives.

Electromagnetic Compatibility Directive 89/336/EEC

Amending Directive 91/263/EEC, 92/31/EEC, 93/68/EEC

Low Voltage Directive 73/23/EEC

Amending Directive 93/68/EEC

In order to achieve this the instrument was tested to the following standards:

For EMC

EN55022 Class B. EN61000-3-2 and EN61000-3-3 Generic Emission standard for Residential,
Commercial and Light Industry.

For LVD

EN61010-1 (1993) Safety requirements for electrical equipment for measurement, control and
laboratory use-General requirements

Manger Responsable: Ian Johnson

Position: QC Manager

Date: August 1

st

2003

71

If you have any questions or need technical service, please contact
Process Sensors Corporation’s Technical Department:

Process Sensor Corporation

113 Cedar Street-S1

Milford, MA 01757

Tel: [phone] Fax: [phone]

[e-mail]

You can also visit our website:

www.processsensors.com

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