Thermo Scientific Ramsey MINI CK100 Service manual

1
Operating And Service Manual
Ramsey
MINI CK100
Weight Indicator
MINI CK100
Part No.:

Ramsey
MINI CK100
Weight Indicator
This document is confidential and is the property of Thermo Electron. It may not be
copied or reproduced in any way without the express written consent of Thermo
Electron. This document also is an unpublished work of Thermo Electron. Thermo
Electron intends to, and is maintaining the work as confidential information. Thermo
Electron also may seek to protect this work as an unpublished copyright. In the event
of either inadvertent or deliberate publication, Thermo Electron intends to enforce its
rights to this work under the copyright laws as a published work. Those having
access to this work may not copy, use, or disclose the information in this work unless
expressly authorized by Thermo Electron.
This document is confidential and is the property of Thermo Fisher Scientific. It may not be copied or
reproduced in any way without the express written consent of Thermo Fisher Scientific. This document
also is an unpublished work of Thermo Fisher Scientific. Thermo Fisher Scientific intends to, and is
maintaining the work as confidential information. Thermo Fisher Scientific also may seek to protect this
work as an unpublished copyright. In the event of either inadvertent or deliberate publication,
ThermoFisher Scientific intends to enforce its rights to this work under the copyright laws as a published
work. Those having access to this work may not copy, use, or disclose the information in this work unless
expressly authorized by Thermo Fisher Scientific.

Revision History
Rev.D November 2008 General Revision
Rev.C April 2008 General Revision
Rev.B April 2006 General Revision
Rev.A February 2006 Manual first released

i
Table of Contents
Table of Contents …………………………………………………………………………………………… i
List of Figures …………………………………………………………………………………………………. iv
List of Tables ………………………………………………………………………………………………...iv
About this Manual …………………………………………………………………………………………… .v
Who Should Use this Manual ................................................................................................................. v
Organization of the Manual..................................................................................................................... v
Documentation Conventions.................................................................................................................. vi
Safety Messages ................................................................................................................................... vi
General Precaution................................................................................................................................vii
Warranty ...............................................................................................................................................viii
Disclaimer.............................................................................................................................................. ix
Chapter 1 Introduction to the MINI CK100 ………………………………………………………… 1-1
1.1 Unpacking and Inspection........................................................................................................1-1
1.2 Storage ....................................................................................................................................1-1
1.3 Application ...............................................................................................................................1-1
1.4 MINI CK100 Functional Description.........................................................................................1-2
1.5 Configuration............................................................................................................................1-4
1.6 Indicator General Description .................................................................................................1-5
1.7 Functions .................................................................................................................................1-5
1.7.1 Zero and Span Automatic Calibration ………..……………………………………………1-5
1.7.2 Zero Tracking (AZT) ……………………………………………………………………………1-5
1.7.3 Current Output Signal …… ……………………………………………………………………1-5
1.8 Symbol Identification …… ……………………………………………………………………………...1-6
1.9 Technical Specifications ………………………………………………………………………………1-7
Chapter 2 Installing the MINI CK100 …………………………………………………………………...2-1
2.1 Safety Precautions...................................................................................................................2-1
2.2 Incoming Power .......................................................................................................................2-3
2.2.1 Critical Wiring Conditions.................................................................................................2-4
2.3 Installation ...............................................................................................................................2-4
2.3.1 Mounting ..........................................................................................................................2-4
2.3.2 Connecting Incoming Power 100/230(+/-10%) ................................................................2-6
2.3.3 Connecting Incoming Power 24VDC (ON REQUEST) ....................................................2-6
Chapter 3 MINI CK100 Operation …… ……………………………………………………………...3-1
3.1 Operator Interface....................................................................................................................3-1
3.2 Front Panel ..............................................................................................................................3-1
3.2.1 System Status Lights (Leds) ........................................................................................3-2
3.3.2 Keypad .........................................................................................................................3-2
3.2.3 LCD Graphic Display....................................................................................................3-3
3.3 Mode of Data Insert ...............................................................................................................3-3
3.3.1 Selection ......................................................................................................................3-3
3.3.2 Data Entry ....................................................................................................................3-3
3.4 Menu Displays .........................................................................................................................3-4
3.5 First Power On .........................................................................................................................3-4
3.6 Normal Power On ....................................................................................................................3-5
3.6.1 Hardware Configuration ...............................................................................................3-5
3.7 Run Menu ................................................................................................................................3-5
3.7.1 Main Run Functions ........................................................................................................3-5
3.7.1.1 Screen 1...........................................................................................................................3-5
3.7.1.2 Screen 2...........................................................................................................................3-6
3.7.2 Alarm Pending .................................................................................................................3-7

ii
3.8 Calibration.....................................................................................................................................3-7
3.8.1 Zero Calibration Scroll......................................................................................................3-8
3.8.1.1 Manual Zero.....................................................................................................................3-9
3.8.2 Span Calibration Scroll...................................................................................................3-10
3.8.2.1 Auto Span ..................................................................................................................3-10
3.8.2.1.1 Calibration with R-CAL ................................................................................................3-10
3.8.2.1.2 Calibration with Test Weights ......................................................................................3-11
3.8.2.1.3 Span Calibration ..........................................................................................................3-11
3.9.2.1.4 R-CAL Factor...............................................................................................................3-11
3.8.2.1.5 Recording New Span..................................................................................................3-12
3.8.2.1.6 Ending an Auto Span Procedure with Test Weights...................................................3-14
3.8.2.1.7 Ending an Auto Span Procedure with R-CAL.............................................................. 3-14
3.8.2.2 Manual Span ..............................................................................................................3-14
3.8.2.3 Two Point Calibration .................................................................................................3-15
3.8.2.4 Usual Calibration Procedure ......................................................................................3-17
3.8.3 Linearization...................................................................................................................3-18
3.9 Setup and Configuration Menu ..............................................................................................3-18
3.9.1 Display ...........................................................................................................................3-19
3.9.2 Measure Units................................................................................................................3-19
3.9.3 Weight Units...................................................................................................................3-19
3.9.4 Total Units......................................................................................................................3-20
3.9.5 Defining Language .........................................................................................................3-20
3.9.6 Time and Date Mode (opt. COMM)................................................................................3-20
3.9.7 Line (2) Display of Run Menu.........................................................................................3-21
3.9.8 Line (3) Display of Run Menu.........................................................................................3-21
3.9.9 Display Damping Factors...............................................................................................3-21
3.9.10 Acquiring Tare................................................................................................................3-22
3.10 Scale Data Scroll ...................................................................................................................3-22
3.10.1 Scale Capacity ...............................................................................................................3-22
3.10.2 Divisions.........................................................................................................................3-22
3.10.3 Defining the Load Cell(s)................................................................................................3-23
3.10.3.1 Number of Load Cells...................................................................................................3-23
3.10.3.2 Load Cell Capacity .......................................................................................................3-23
3.10.3.3 Load Cell Sensitivity .....................................................................................................3-23
3.10.3.4 Load Cell Resistance....................................................................................................3-24
3.10.4 Stable Weight.................................................................................................................3-24
3.10.5 Stable Weight Delay.......................................................................................................3-24
3.11 Calibration Data Scroll ...........................................................................................................3-25
3.11.1 Calibration Mode............................................................................................................3-25
3.11.1.1 Test Weight Parameters...............................................................................................3-25
3.11.1.2 R-CAL Parameters .......................................................................................................3-25
3.11.2 Calibration Interval (Opt.COMM)....................................................................................3-26
3.11.3 Defining Auto Zero Tracking (AZT) ...............................................................................3-27
3.12 Main Menu’ 3 .........................................................................................................................3-28
3.12.1 Changing Protection Level.............................................................................................3-28
3.12.1.1 Online Procedure for Changing Protection Level .........................................................3-28
3.13 Diagnostics ............................................................................................................................3-30
3.13.1 A/D Raw Data ................................................................................................................3-30
3.13.2 Readout Load Cell mV...................................................................................................3-30
3.13.3 Change Passwords........................................................................................................3-31
3.13.4 Display Software Version...............................................................................................3-32
3.13.5 Setup Date and Time (Opt. COMM)...............................................................................3-32
3.13.6 Check Hardware Configuration......................................................................................3-33
3.13.7 Force Cold Start.............................................................................................................3-33

iii
3.13.8 Lamp Test ......................................................................................................................3-33
3.13.9 Test Digital Inputs / Digital Outputs................................................................................3-35
3.13.10 Test Current Output (Opt. IOUT)....................................................................................3-36
3.13.11 Test Communication A (Opt. COMM) ............................................................................3-36
3.13.12 Test Keyboard................................................................................................................3-36
3.14 Main Menu 4 ..........................................................................................................................3-37
3.14.1 I/O Definition ..................................................................................................................3-37
3.14.1.1 Definition Current Output (Option I/OUT) ....................................................................... 3-37
3.14.2 Digital Inputs Definition ..................................................................................................3-38
3.14.3 Digital Outputs Definition................................................................................................3-40
3.15 Alarms Definition....................................................................................................................3-42
3.15.1 Alarm Definition Threshold 1 .........................................................................................3-42
3.15.2 Alarm Definition Threshold 2 .........................................................................................3-44
3.15.3 Alarm Definition Threshold 3 .........................................................................................3-44
3.15.4 Alarm Definition Threshold 4 .........................................................................................3-44
3.15.5 Alarms Setup..................................................................................................................3-44
3.16 Ethernet .................................................................................................................................3-44
3.17 Main Menu 5 (Opt. COMM or Opt. Profibus) .........................................................................3-45
3.17.1 Communication A (Opt. COMM) ....................................................................................3-45
3.17.2 Print (Opt. COMM) .........................................................................................................3-47
3.17.2.1 Control ..........................................................................................................................3-47
3.17.2.2 Periodical Printing.........................................................................................................3-48
3.17.3 Profibus (Opt. Profibus)..................................................................................................3-49
Chapter 4 MINI CK100 Maintenance ………………………………………………………………4-1
4.1 Frequent Checkpoints..............................................................................................................4-1
4.2 Troubleshooting .......................................................................................................................4-1
4.3 Alarm Messages ......................................................................................................................4-1
4.3.1 Alarms List .......................................................................................................................4-2
4.4 Cold Start ................................................................................................................................4-4
4.5 Load Cell Excitation and Signal Voltage ..................................................................................4-4
4.6 Lithium Battery Replacement...................................................................................................4-4
4.7 Disposal of Hazardous Waste..................................................................................................4-5
4.8 Cleaning Instructions ...............................................................................................................4-5
Chapter 5 MINI CK100 Replacement Parts …………………………………………………………….5-1
5.1 Order Informations.......................................................................................................................5-1
5.2 Parts List …………………………………………………………………………………………5-2
Appendix A MINI CK100 Digital Input / Output .................................................................................. A-1
A.1. Mother Board Digital I/O ......................................................................................................... A-1
A.1.1. Digital Inputs ................................................................................................................... A-1
A.1.2. Digital Outputs ................................................................................................................ A-2
Appendix B MINI CK100 Optional Boards …………………………………………………...A-4
B.1 Analog Out Board ………………………………………………………………………A-1
B.2 Profibus Board ………………………………………………………………………A-1
B.3 Comm RS232/485 Board …………………………………………………………………A-1
Appendix C Drawings …………………………………………………...C-1

iv
LIST of FIGURES
Figure 1-1: MINI CK100 (Panel Version) …………………………………………………………………..1-2
Figure 1-2: MINI CK100 (Field Version) .…………………………………………………………………..1-3
Figure 2-1: MINI CK100 Overall Dimensions (Panel Version)……………………………………………...2-5
Figure 2-2: MINI CK100 Overall Dimensions (Field Version).……………………………………………...2-5
Figure 3-1: MINI CK100 Front Panel ……………………………………………………………..3-1
Appendix Figure A-1: General Purpose Digital Inputs ……………………………………………………A-1
Appendix Figure A-2: State Speed Input ……………………………………………………………A-2
Appendix Figure A-3: Digital Outputs ………………………………………………………………A-2
Appendix Figure A-4: State Output TTL …………………………………………..A-3
Appendix Figure B-1: State Current Output ……………………………………………...…B-1
LIST of TABLES
Table 1-1: Symbol Identification …………………………………………………………………… 1-6
Table 3-1: Alarm Conditions ………………………………………………………………………….. 3-7
Table 3-2: Protection Levels ……………………………………………………………….3-28
Table 3-3: Available Logical Selections ……………………………………………………3-39
Table 3-4: Available Logical Assignement …………………………………….. 3-41
Table 5-1: Parts List ……………………………………5-2

v
About this Manual
This manual provides the information you need to install, operate and maintaining of the
MINI CK100.
Read this manual before working with the product. For personal and system safety, and for the
best product performance, make sure you thoroughly understand the manual before installing
or using this product.
Who Should Use this Manual
The MINI CK100 manual is a learning resource and reference for anyone concerned with
installing, operating, or maintaining MINI CK100.
Read this manual before working with the system. For personal and system safety, and for the
best product performance, make sure you thoroughly understand the manual before installing,
operating, or maintaining this machine.
Organization of the Manual
This manual is organized into five chapters and three Appendixes.
Chapter 1: Introduction to the MINI CK100 gives an overview of the device’s capabilities,
describes its functions, and lists its technical specifications.
Chapter 2: Installing the MINI CK100 provides information about installing the MINI CK100
including procedures for mounting, wiring, and configuration of the instrument.
Chapter 3: MINI CK100 Operation provides an overview of the MINI CK100 front panel, a
description of how the menus operate, and information about setting up, calibrating, and
operating the MINI CK100.
Chapter 4: MINI CK100 Maintenance provides an overview of standard maintenance
associated with the MINI CK100.
Chapter 5: MINI CK100 Replacement Parts- provides a list of replacement parts for the MINI
CK100 and part ordering information.
Appendix A: MINI CK100 Digital Input/Output
Appendix B: MINI CK100 Optional Boards
Appendix C: MINI CK100 Drawings

vi
Documentation Conventions
The following conventions are used in this manual to help easily identify certain types of
information:
•Italic is used to introduce new terms and for emphasis.
•Italic/blue type is used for references to other sections of the manual and work as links on
line and in pdf format.
•The names of setup, calibration displays, menu displays, and variables are shown in FULL
CAPITALS.
•The names of keys on the front panel are shown in BOLD CAPITALS.
Safety Messages
Instructions in this manual may require special precautions to ensure the safety of the
personnel performing the operations.
Please read the safety information before performing any operation preceded by this symbol.
There are two levels of safety messages: warnings and cautions. The distinction between the
two is as follows:
WARNING
FAILURE TO OBSERVE COULD RESULT IN DEATH OR
SERIOUS INJURY.
CAUTION
FAILURE TO OBSERVE MAY CAUSE MINOR INJURY OR
DAMAGE THE EQUIPMENT

vii
General Precaution
Do not install, operate, or perform any maintenance procedures until you have read the safety
precautions presented.
WARNING
FAILURE TO FOLLOW SAFE INSTALLATION AND SERVICING
PROCEDURES COULD RESULT IN DEATH OR SERIOUS
INJURY.
M
AKE SURE ONLY QUALIFIED PERSONNEL PERFORM
INSTALLATION AND MAINTENANCE PROCEDURES IN
ACCORDANCE WITH THE INSTRUCTIONS IN THIS MANUAL.
A
LLOW ONLY QUALIFIED ELECTRICIANS TO OPEN AND
WORK IN THE ELECTRONICS CABINET,POWER SUPPLY
CABINET,CONTROL CABINET,OR SWITCH BOX.
C
OVERS OVER THE ELECTRONICS AND ROTATING PARTS
MUST ALWAYS REMAIN IN PLACE DURING NORMAL
OPERATION REMOVE ONLY FOR MAINTENANCE,WITH
THE MACHINE’S POWER OFF. REPLACE ALL COVERS
BEFORE RESUMING OPERATION.
D
URING MAINTENANCE,A SAFETY TAG (NOT SUPPLIED
BY THE FACOTRY)IS TO BE DISPLAYED IN THE ON/OFF
SWITCH AREAS INSTRUCTING OTHERS NOT TO OPERATE
THE UNIT (ANSI:B157.1).
WARNING
HIGH VOLTAGE THAT MAY BE PRESENT ON LEADS COULD
CAUSE ELECTRICAL SHOCK.
A
LL SWITCHES MUST BE OFF WHEN CHECKING INPUT
AC ELECTRICAL CONNECTIONS,REMOVING OR
INSERTING PRINTED CIRCUIT BOARDS,OR ATTACHING
VOLTMETERS TO THE SYSTEM.
U
SE EXTREME CAUTION WHEN TESTING IN,ON,OR
AROUND THE ELECTRONICS CABINET,PC BOARDS,OR
MODULES.THERE ARE VOLTAGES 100 VOR 230 VIN
THESE AREAS.
WARNING
USE ONLY THE PROCEDURES AND NEW PARTS
SPECIFICALLY REFERENCED IN THIS MANUAL TO ENSURE
SPECIFICATION PERFORMANCE AND CERTIFICATION
COMPLIANCE.UNAUTHORIZED PROCEDURES OR PARTS
CAN RENDER THE INSTRUMENT DANGEROUS TO LIFE,
LIMB,OR PROPERTY.

viii
WARNING
KEEP HANDS AND CLOTHING AWAY FROM ALL MOVING OR
ROTATING PARTS.
WARNING
DO NOT PLACE OR STORE OBJECTS OF ANY KIND ON THE
MACHINE.
WARNING
THIS MACHINE SHOULD NOT BE OPERATED AT MORE THAN
THE PRODUCTION RATE STATED ON YOUR EQUIPMENT
SPECIFICATION SHEET OR USED IN APPLICATIONS OTHER
THAN THOSE STATED IN THE ORIGINAL ORDER.
Warranty
The seller agrees, represents, and warrants that the equipment delivered hereunder shall be free from
defects in material and workmanship. Such warranty shall not apply to accessories, parts, or material
purchased by the seller unless they are manufactured pursuant to seller's design, but shall apply to the
workmanship incorporated in the installation of such items in the complete equipment. To the extent
purchased parts or accessories are covered by the manufacturer's warranty, seller shall extend such
warranty to buyer.
Seller's obligation under said warranty is conditioned upon the return of the defective equipment,
transportation charges prepaid, to the seller's factory in Minneapolis, Minnesota, and the submission of
reasonable proof to seller prior to return of the equipment that the defect is due to a matter embraced
within seller's warranty hereunder. Any such defect in material and workmanship shall be presented to
seller as soon as such alleged errors or defects are discovered by purchaser and seller is given
opportunity to investigate and correct alleged errors or defects and in all cases, buyer must have notified
seller thereof within one (1) year after delivery, or one (1) year after installation if the installation was
accomplished by the seller.
Said warranty shall not apply if the equipment shall not have been operated and maintained in
accordance with seller's written instructions applicable to such equipment, or if such equipment
shall have been repaired or altered or modified without seller's approval; provided, however,
that the foregoing limitation of warranty insofar as it relates to repairs, alterations, or
modifications, shall not be applicable to routine preventive and corrective maintenance which
normally occur in the operation of the equipment.
“EXCEPT FOR THOSE WARRANTIES SPECIFICALLY CONTAINED HEREIN,
SELLER DISCLAIMS ANY AND ALL WARRANTIES WITH RESPECT TO THE
EQUIPMENT DELIVERED HEREUNDER, INCLUDING THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR USE. THE SOLE LIABILITY OF SELLER
ARISING OUT OF THE WARRANTY CONTAINED HEREIN SHALL BE
EXCLUSIVELY LIMITED TO BREACH OF THOSE WARRANTIES. THE SOLE AND
EXCLUSIVE REMEDY FOR BREACH OF THE WARRANTIES SET OUT ABOVE
SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF ANY DEFECTIVE
ACCESSORY, PART OR MATERIAL WITH A SIMILAR ITEM FREE FROM DEFECT,
AND THE CORRECTION OF ANY DEFECT IN WORKMANSHIP. IN NO EVENT
SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES.”

ix
Purchaser agrees to underwrite the cost of any labor required for replacement; including time,
travel, and living expenses of Thermo Ramsey Field Service Engineer at closest factory base.
Disclaimer
Though the information provided herein is believed to be accurate, be advised that the
information contained herein is not a guarantee for satisfactory results. Specifically, this
information is neither a warranty nor guarantee, expressed or implied, regarding performance,
merchantability, fitness, or any other matter with respect to the products, and recommendation
for use of the product/process information in conflict with any patent. Please note that Thermo
Ramsey reserves the right to change and/or improve the product design and specifications
without notice.

1-1
Chapter 1
Introduction to the MINI CK100
This instruction manual contains information on the installation, operation, calibration, and
maintenance of the MINI CK100 Weight Indicator.
1.1 Unpacking and Inspection
The MINI CK100 has been properly packaged for shipment and storage, when necessary.
Inspect all packages for damage before opening; sometimes the carrier may be responsible for
shipping damage.
1.2 Storage
The MINI CK100 can be safely stored, with cover, latches secured and hole plugs installed,
between -40°to +158°F (-40°to +70°C). The units should be protected against moisture.
1.3 Application
The MINI CK100 is a bus-based microcomputer driven instrument used for static weighing of
bulk materials. Common application are C-Level, Unitrain Load-out and check weigh bins for
in-line conveyor belt scale calibration , weighing platform .
The Static Weight System includes the following principal components :
1. LOAD RECEIVING ELEMENT
That element of a scale designed to receive the load to be weighed (for example: platform,
deck, rail, hopper, platter, plate, or scoop). See the installation drawing for specific type of load
receiving element supplied with your system.
2. LOAD CELL SYSTEM
Thermo Ramsey uses three load cell systems depending on the application. They are tension,
compression, and shear beam.
3. STATIC WEIGHT INDICATOR MINI CK100
Static weight indicator is designed to convert force signals from 1 to 6 strain gauge load cells
to an accurate stable signal for local and remote weight indication.
The remote weight indication is available with an optional board for analog signal, serial
communication or bus.

1-2
1.4 MINI CK100 Functional Description
The MINI CK100 is availabile with the following configuration hardware and software.
•Menu driven scroll entries on a four line display.
•Five LED status indicators.
•Automatic zero and span calibration.
•Auto zero Tracking.
•Several software options that may be turned on by keyboard entry or installing optional
board.
•Optically couplet digital inputs and outputs.
•Relay Board – Mounted on the Field Version
(OPTIONAL) External for the Panel Version
•Alarms and failure detection.
•Ethernet Line
•(OPTIONAL) Communication : RS232C, RS485, Profibus
•(OPTIONAL) 20mA Current Loop passive.
•(OPTIONAL) Relay Board (External for panel version – mounted inside the instrument for
field version).
Figure 1-1: MINI CK100 (Panel Version)

1-3
Figure 1-2: MINI CK100 (Field Version)
1.5 Configuration
The standard configuration of the MINI CK100 includes the following:
•Single channel load cell input to a max of 6 load cells
•1 programmable digital inputs
•1 programmable digital output
•4 optically digital outputs (TTL) programmables for Panel Version
•4 digital outputs (relay contact) programmables for Field Version
•1 Ethernet Line
•1 slot for insert the following optional board :
1. Current Output Board (20mA Current Loop passive)
2. Serial Communication Board
3. Profibus-DP Board

1-4
1.6 Indicator General Description
The MINI CK100 is designed for static weighing systems..
The base functions are located on the instrument software. Function accessories are activated
when the correspondent hardware are mounted , or after activation from keyboard by operator.
Instrument parameters programming is executed from keyboard. A menu driven allows the
operator to access all setup, test and calibration parameters.
Static weight indicator is designed to convert force signals from max 6 strain gauge load cells
(350ohm ).
The process variables displayed can be damped by a programmable factor.
The Indicator has built-in troubleshooting capabilities. A number of possible internal alarms are
automatically detected and screen messages are displayed. The alarms can be acknowledged and
by keyboard or remote digital input is possible to clear the alarms.
The alarms can be programmed and defined to be :
ALARM , SHUT DOWN process or NONE (ignored).
The front panel shows the led status (Alarm) illuminated .
Are availables digital output for the following conditions:
•Cumulative Alarms
•Cumulative Shut Down
With the serial communication (optional) is possible by command to have a periodical and
instantaneous printing format on printer of data sistem. Is available the clock function
maintained by lithium battery.
Are availables three type of communications :
•Ethernet Modbus TCP (Standard) – The protocol allows a remote intelligent device to read
and write data of the registers. During the communication activity, the MINI CK100 will
always act as slave, meaning it will respond to a request from a master device on the line, but
will never attempt to send messages out.
•Serial Communication (Optional) – The protocol allows a remote intelligent device to read
and write data of the registers. During the communication activity, the MINI CK100 will
always act as slave, meaning it will respond to a request from a master device on the line, but
will never attempt to send messages out.
•Profibus DP (Optional) – The protocol allows a remote intelligent device to read and write
data of the registers. During the communication activity, the MINI CK100 will always act as
slave, meaning it will respond to a request from a master device on the line, but will never
attempt to send messages out.

1-5
1.7 Functions
This section provides the information about functions of the MINI CK100.
1.7.1 Zero and Span Automatic Calibration
Electronic Calibration (R-Cal) – Allows the calibration without application test weights. The
electronic calibration controls the instrument with load cell, the program inserts a precision
resistance (in parallel to load cell strain gauge) that simulates a weight variation. The
calibration constant is obtained with reference of load cell and scale data.
Calibration with Test Weights – Is necessary the installation of test weights on the scale.
1.7.2 Zero Tracking (AZT)
This function is performed executing continuous periodical zeroing actions, in order to
compensate the zero variations due to deposit of material or similar causes.
If for a selected time the instrument has a weight value different to zero, included a activation
value (Activation Range) selected, the AZT function provides executing zeroing actions.
The max value for autozero tracking is selected with Activation Range.
1.7.3 Current Output Signal (Optional)
A current output is available (0-20/4-20 mA). The output range and the function are selected
by keyboard. The functions available are the following :
•Gross Weight
•Net Weight
•Tare
•Peak
The current output has a filter and camping that can be selected.

1-6
1.8 Symbol Identification
Table 1-1 describes the symbols used in this manual.
Table 1-1: Symbol Identification
Symbol Description
ALTERNATING CURRENT
EARTH (GROUND)TERMINAL
PROTECTIVE CONDUCTOR
TERMINAL
CAUTION,RISK OF ELECTRIC SHOCK
CAUTION (REFER TO
ACCOMPANYING DOCUMENTS)