RAMSEY

WEIGHT INDICATOR/TRANSMITTER MINI 11-100P/F

MINI 11-100F

MINI 11-100P

OPERATING AND SERVICE MANUAL

DIRECTIVES STANDARDS

CEE 93/68 EMI : EN 55011 – CEI 110-6

CEE 89/336 (EMI-EMC) EMC : EN 50082-1, IEC 801-2e, IEC 801-4

CEE 73/23 (Low Voltage Dir.) LVD : EN 61010-1

On request, this manual is available in ITALIAN language

File : MN-11100PF-D002A(En) Date : December 2004

1

1. INTRODUCTION

1.1 General

1.2 Technical specifications

1.3 Additional OPTIONS boards

1.4 MINI line

1.5 Warranty

2. PREIMINARY CHECK

2.1 Inspecting and unpacking

2.2 Stocking

3. INSTALLATION

3.1 Mounting connections

3.3 Using the sensing

3.5 Cleaning instrument instruction

4. SET UP OF SCALE PARAMETERS

4.1 General up capacity

INDEX

division weight

5. SCALE CALIBRATION

5.1 General

5.2 AUTO ZERO calibration

5.3 AUTO SPAN calibration with sample weights

5.4 AUTO SPAN calibration with electronic resistor

5.4.1. General

5.4.2. Accuracy

5.4.3. Equivalent computation with electronic resistor

5.4.4. AUTO SPAN calibration with electronic resistor

5.4.5. Modifying the filter factor

6. ACCESS PROTECTION TO KEYBOARD

6.1 Protection levels

6.2 Access code

6.3 How to insert the password

6.4 Modifying the password

7. NORMAL

7.1 Keys of normal

7.2 Use of [T] key

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8. ALARM

8.1 General

8.2 Alarms identification

8.3 Running options

8.4 Alarms reset

8.5 How to enable or disable an alarm function

9. OPTIONAL FUNCTIONS

9.1 General

9.2 Options available in the standard instrument

9.2.1 Setting thresholds (1/2/3/4)

9.2.2 Setting digital input

9.2.3 Setting output

9.2.4 AZT option (auto zero tracking function)

9.2.5 TOTALIZER option

9.2.6 PEACK DET option

9.2.7 CLOCK option

9.3 Other special functions

9.3.1 Current mA OUTPUT

9.3.1.1 Modifying the mA RANGE

9.3.1.2 mA VALUE selection

9.3.1.3 mA ZERO and mA 100% selection

9.3.1.4 mA ABS VAL selection

9.3.2 Serial COMMUNICATION LINE

9.3.2.1 Set up of the serial communication line

9.4 SET UP data recording

9.5 TEST functions

10. ADVANCED USE

11. MAINTENANCE

11.1 Preventing

12. SPARE PARTS LIST

3

1. INTRODUCTION

1.1 GENERAL

This manual contains all the instructions and informations necessary for installing and the main parameters used for scale calibration.

1.2 TECHNICAL SPECIFICATIONS

POWER SUPPLY

Voltage 115VAC – Fuse (T1A) Dimens. 5x20mm

230VAC – Fuse (T0.5A) Dimens. 5x20mm (+10% -15%)

Frequency 50/60 Hz

Power 25 V.A.

Installation Class (III)

TRANSDUCER

Power Supply of load cell 10VDC 0.5%

Minimum load 88 Ohm (6 cells max, 350 Ohm)

Input Signal -25mV / + 25mV

Sensing Max fall of tension between the jumpers of power supply and sensing 3V

Max lenght of the connection between the load cell and 11-100 by Ramsey standard cable, without sensing = 60m

INDICATOR ACCURACY

Resolution 32000 divisions (with input at 25mV)

Linearity +/- 0.05 on measure range

Zero thermal drift +/- 0.5 uV/°C

Span thermal drift +/- 25 ppm/°C

MEMORY

EPROM size of 32 Kbytes

Static RAM size of 32 Kbytes

E2PROM size of 16 Kbytes for permanent data recording

Data retention in case of power off : no time limit

CPU TMPZ 84C015.AF-6 8 bit, clock frequency 12.288 MHz

INPUTS

Three digital dry contact inputs are available on the instrument. A 24VDC supply is available for supplying the external contacts.

Available Functions :

- Set Tare (Default on input 1)

- Reset Tare (Default on input 2)

- Totalize Weight

- Clear Total

- Hold Weight Indication

- Clear Peack Memory

- Alarms Reset (Default on input 3)

- Not Used

4

OUTPUTS

Four relay outputs are providede (only for the models with an N.O. contact without tension. Each contact can drive 0.5A at 240VAC or 48vdc max.

Available Functions :

- Alarm

- Ready

Stable

- Weight has been totalized

- Total

- Threshold 1 (Default on output 1)

- Threshold 2 (Default on output 2)

- Threshold 3 (Default on output 3)

- Threshold 4 (Default on output 4) used

ENVIRONMENTAL SPECIFICATIONS

- Operating Temperature : -10 to +50°C

- Stocking Temperature : -20 to +70°C

- Humidity (operating & stocking) : < 90% (without condensation)

PACKAGING

Mod.11-100F Field Mounting – Renforced fiberglass housing dim. 300x250x160mm

Protection IP65 Weight 6kg

Mod.11-100P Panel Mounting – Prot. IP54, all housing IP00 Weight 1kg

WIRING

The instrument has been provided with a removable terminal block.

Maximum cable section : 1.5mmq

DISPLAY

- Type LCD

- Characters height 8mm

- Number of characters 16

- Type of display Alphanumeric

- Displaying Good quality in all conditions

SIGNAL LED

- Quantity 5

- Functions Threshold 1,2,3,4

Stable weight

Cumulative alarms

Instrument is ready

Weight totalized

Total cleared

5

CURRENT OUTPUT BOARD

- Selectable 0-20mA; 4-20mA; 20-0mA; 20-4mA

- Maximum load 500 Ohm

- Maximum tension on load 20VDC

- Resolution 12 bit (4096 divisions)

- Linearity 0.1 %

- Insulation Galvanic, 1500 VRMS

Selectable functions :

-Net

-Gross (Default)

- Peak Weight

1.3 ADDITIONAL BOARD

SERIAL COMMUNICATION BOARD (OPTION) Cod.11-100-11

Available standars (select by jumpers)

- RS 423 (RS 232) Null modem (ready/busy signal)

- RS 422 (RS 485) Two wires not-isolated

- RS 422 (RS 485) Four wires not-isolated

- Wires connection Terminal block

- Available protocols (on request)

Ramsey PC MASTER (Standard) – Siemens 3964R – AEG Modbus

Allen Bradley DF1

SERIAL OUT (COMM MINI LINE) (OPTION)

Used only with Thermo Ramsey instruments

1.4 MINI LINE

Available model in the MINI line :

11-100P/F-RC Weight indicator with four threshold relays and insulated output 0-20 or

4-20mA.

11-100P/F-RCS Weight indicator with four threshold relays and serial output RS 423

and RS 422 and insulated output 0-20mA or 4-20mA.

1.5 WARRANTY

Thermo Fisher Ramsey warranty is given for a period of twelve mounths from the start –

up, but no longer than eighteen months from delvery, the good operation of the delivered devices. Thermo Ramsey’s obligation under warranty is conditioned upon the return of the defective equipment within eight days from discovery, transportation charges prepaid to Thermo Ramsey’s workshop, with a detailed description of the defects. Thermo Ramsey’s obligation is relevant only to repairs and/or replacements that

Thermo Ramsey considers to be suitable for the good operation of the device according

to normal use and required as a conseguence of a fact of its own. If not specifically and expressively defined with a written act, it will be excluded every obligation for Thermo

Ramsey on repairs or replacements and/or othr service outside its workshop.

6

2. PRELIMINARY CHECK

2.1 INSPECTING AND UNPACKING

The instrument MINI 11-100 is a completely checked and properly packed at the factory. To be sure of the absence of any damage due to the transport, check the package very carefully before unpacking. In case of demages inform the carrier.

2.2 STOCKING

If the instrument has not to be immediately installed, it could be stored completely packed in a covered place, with temperature from –20 and +70°C and relative humidity less than 90%.The instrument is provided with a battery for data retention without any limit of time.

3. INSTALLATION

3.1 MOUNTING

The mounting place must be carefully selected, avoiding places where there is vibrations, high temperature or humidity.

Model 11-100P is supplied for mounting on a covered front panel with any inclination compared to the orizontal position.

Model 11-100F is supplied for mounting in open air. It is suggested a mounting in a protected position against rain about, in a place with strong vibrations, it is better to provide a mounting using non vibrating devices.

The instruments must be positioned with a suitable height in order to easily read the display and conveniently access to thr key board.

3.2 ELECTRICAL CONNECTIONS

THE INSTRUMENT MUST BE CONNECTED WITH EQUIPMENTS

INSTALLATION CLASS (III)

Electrical connections to terminals have to be executed using flexible cable section

1.5mm max (certified by IEC227 or IEC245 standard) provided with cable terminal.

For Model 11-100F the input/output cables must be executed using press cables

(certified by standards) for the keep the instrument protection IP65.

- Load cell connection cable : 4 x 1.5mmq, max 60m

Exceeding 60m add shielded cable 2 x 1.5mmq

for sensing connection.

- Output current cable : Shielded cable 2 x 1.5mmq

- Output and input commands : Use 1.5mmq cable.

7

7A

WARNING

1- Don’t put signal cables near power cables

2- Connect shields only where indicated on diagrams

3- Connect ground as specified by standars

4- Never use a Megger to verify connections

3.3 USING THE SENSING

When the distance of load cell and/or cells are more than 60m use a shielded cable

2x1.5mm, connected to 13(+) and 16(-) terminal blocks (see Dwg ST11-100P/F/04).

Sensing function is used to feed back the power supply to maintain the load cell(s) voltage equal to the desired value even in case of high cable impedance.

If the sensing has to be used, S1 and S2 jumpers on Mother board must be opened.

3.4 SUPPLY VOLTAGE

The MINI is a dual voltage instrument 115VAC or 230VAC

To select the appropiate voltage (Mod.11-100F) by the voltage selector mounted near the main switch (see pag.7A).

(Mof.11-100P) the voltage selector (INT2) is on the AC BOARD internal instrument.

Before powering on the instrument, check if the power supply you are using is appropiate.

Verify electrical connections and particulary check that no conductors at high tension have been connected to terminals or signal connectors.

3.5 CLEANING INSTRUMENT INSTRUCTIONS

Conclude the instrument installation and wiring, clean residuals of rubber or wire. Is not necessary other particulary cleaning because the instrument MOD.11-100F have protection IP65.

IF THE INSTRUMENT IS NOT INSTALLED AND CONNECTED IN COMPLIANCE

WITH THE INDICATIONS OF THIS MANUAL, Thermo Scientific DOES NOT ASSUME

RESPONSABILITY ABOUT THE INSTRUMENT.

4. SET UP OF SCALE PARAMETERS

4.1 GENERAL

If no specific application has been requested, the instrument will be supplie with following data :

Scale capacity 300.0 kg

Measure unit kg

Resolution 0.1 kg

If a specific application has been requested besides this manual, our Technical

Department will deliver a documentation containing all the specific data of your scale.

4.2 SET UP

WARNING : press RUN to cancel each wrong selection

At the end of each selection push [RUN] to come back to normal running. There are three ways to access to parameters of MINI instruments : a) With the function key [SET UP], to modify all data of the instrument general set up. b) With the function key [CAL] for calibrations. c) With the function key [SET POINT], to insert the parameters of the thresholds.

The drawing in the following pages show how to enter numeric data.

8

9

10

4.3 SCALE CAPACITY

The scale capacity is expressed in engineering units and it is usually a value higher than the working rate, compared to the nominal capacity of load cells used in the application.

Ex : Load cell used – N°3 with max capacity 500kg – Total rate 1500kg

Working rate 500kg – Scale capacity defined at 600.0

- SELECTING THE DECIMAL POINT

Push [SET-UP] [

↑] [ENTER], the display will show DECIMAL POINT; push [ENTER] to display the value in memoty. Push [ENTER] and use [

↑] key until the desired value is displayed, then [ENTER] again. Finally press [RUN]. Select the value from the following table :

0 0 3 0.000

1 0.0 4 0.0000

2 0.00

- SELECTING THE SCALE CAPACITY

Push [SET-UP] [

↑] [ENTER] [↑] and the display will show SCALE CAPACITY ;

Push [ENTER] and the actual value of scale will be shown (300.0).

Press [ENTER] and digit 000300.0, press [ENTER].

Compose the new value 600.0 pressing [

↑] [→] followed by ENTER. Press [RUN].

4.4 MEASURE UNIT

The measure unit can be selected among the following :

g kg q t LB LT

Act as follows :

Press [SET-UP] [

↑] [ENTER] [↑] [↑] [↑] and MEASURE UNIT will be displayed. Press

[ENTER] and the instrument will show the memorized measure unit. Push [ENTER] and use [

↑] till you read the information you need and then press [ENTER] . Push [RUN] .

4.5 SCALE DIVISION

The scale division usually represents the instrument’s resolution and it does not exceed

3000 divisions.

Ex : Full scale 600.0 (6000 divisions)

Minimum division = 6000 : 3000 = 2 (200 g resolution)

Push [SET-UP] [

↑] [ENTER] [↑] [↑] [ENTER], the display will show the scale division in memory. Press [ENTER] and use the [

↑] key until the desired value is shown, then

[ENTER] again and then [RUN].

4.6 SAMPLE WEIGHT

The calibration with sampling weights is considered as the most reliable. To perform this kind of calibration some type-tested sample weights are needed or just use sample masses already weighed with a scale having a high accuracy. The value is suggested to be encluded between 40 and 80% of full scale.

Ex : defined ample weight = 420.0 kg

Press [CAL] [

↑] [ENTER] ; the display will show SAMPLE WEIGHT. Press [ENTER] and the value in memory will be displayed ; push [ENTER] again and use the [

↑] and

[

→] key to compose the desired value ; than [ENTER] again and [RUN].

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5. SCALE CALIBRATION

5.1 GENERAL

A scale calibration is made of a ZERO calibration with empty scale and SPAN calibration using a sample weight.

Before starting any kind of operation, make sure of the right mounting of load cells and empty the scale so that the tare weight is only acting on load cell(s).

WARNING ! Press [RUN] to escape each wrong operation.

5.2 AUTO ZERO CALIBRATION

Press [CAL] [ENTER] and the display will show WAIT.

Wait till the message disappears (or press [ENTER] if you want to reduce the calibration time).

At the end the instrument will show 0.0 kg.

Check for the repeatibility of scale : putting on and off the weight the indication must come back to zero +/- one division.

5.3.AUTO SPAN CALIBRATION WITH SAMPLE WEIGHTS

Press the sample weight possibly in the centre of scale (ex.: 420.0 kg).

Push [CAL] [

↑] and the display will show AUTO SPAN WEIGHTS ;

Push [ENTER] [

↑], the display will show WEIGHTS LOADED ?

Push [ENTER] the following message will appeare : WAIT

At the end the value of the sample weights will be displayed.

Check for the repeatibility of scale : putting on and off the weight the indication must

be come back to the initial value +/- one division.

If the control gives negative results, carefully check the mechnical part.

5.4 AUTO SPAN CALIBRATION WITH ELECTRONIC RESISTOR

5.4.1 GENERAL

An instrumental calibration can be made with the MINI. Use a precision resistor to

simulate a weight on the scale when a calibration with sample weights is completely

impossible.If the instrument has been ordered for a specific application, a resistor of

the proper value will be installed inside the instrument before delivery by Thermo

Ramsey ;

its value computed by our Tech.Departement keeping count of the load cells

capacity and the scale capacity used in the application.

If the instrument has not been set, than a 49.9 Kohm resistor will be used.

5.4.2 ACCURACY

Using the electronic resistor, the calibration error in the best condition will be lower

than strictly connected to the mechanical installation and to the values of constants

inserted to obtain the equivalent load.

Usually we can have an error lower than +/- 1-2%.

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EQUIVALENT COMPUTATION WITH ELECTRONIC RESISTOR

Use the following formula to obtain the value of equivqlent weight :

P x N x 500 RC

CALC R CAL = x

K (2 x Rs x N) + Rc

Where :

CALC R CAL = Equivalent weight in kg

P = Nominal capacity of load cell in kg

N = Number of load cells in parallel

K = Load cell sensibility mV/V (usually 2mV/V)

Rc = Bridge resistor power supply side (usually 350 Ohm)

Rs = Calibration resistor in Ohm

For some standard values of resistors see the following table :

ELECTRONIC CAL. – EQUIVALENT LOAD TABLE (Valid for load cells Mod.10-27/28/30/31A/32/9363).

ELECTRONIC

REISTOR

F.S. OF A

SINGLE

LOAD CELL

EQUIVAL.

LOAD

% OF SIMULATED WEIGHT REFERRED TO THE TOTAL

AMOUNT OF NOMINAL CAPACITY OF LOAD CELL

KOhm kg kg 1 2 3 4 6

20 50 109.1 Not Used Not Used

100

200

218.2 Not Used

436.04 Not Used

Not Used

Not Used

72.7

3

54.5

5

36.36

100 87.52 87.52 43.76 29.1 21.8 14.58

100 43.71 43.71 21.85 14.5 10.9 7.28

100 29.15 29.15 14.57 9.71 7.28 4.86

100 19.78 19.78 9.89 6.59 4.94 3.29

100 8.76 8.76 4.38 2.92 2.19 1.46

How to read the table :

1) Three scale capacities (commonly used) have been used.

2) If the scale capacity is multiple of one of the three values, the decimal point will be moved right as many places as many nulls have been added to the scale capacity.

Ex.: F.S. 50 kg = 43.76 kg equivalent load

F.S. 500 kg = 437.6 kg equivalent load

Example of resistor used in a weighing system with more than one load cell.

Total scale capacity = 10000 kg

Nominal capacity of one load cell = 5000 kg

Number of load cells = 3

Total capacity of load cells = 15000 kg

(Nominal cell capacity 5000 kg x 3 load cells)

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Now, choose a resistor to simulate a weight included between 40 and 80% of scale capacity :

Resistor to be used = 49.9 Kohm

Simulated weight = 4.376 kg

% of simulated weight referred to the total capacity of load cells (15000 kg) = 29.17 %

% of simulated weight referred to the scale capacity = 43.76 %

5.4.3 AUTO SPAN CALIBRATION WITH ELECTRONIC REISTOR

After having calculated the value of the resistor as shown in the previous paragraph follow these procedures :

Make sure that the scale is empty and that the indicator shows 0 +/- one division.

Otherwise proceed to AUTO ZERO calibration (see paragraph 5.2).

Enter [CAL] [

↑] [↑] [ENTER] [↑] [ENTER] [ENTER] and insert the value of equivalent weight observing the decimal point previously defined inside the

SCALE CAP function. End with [ENTER] [RUN].

Enter [CAL] [

↑] [↑] [ENTER] [↑][↑] the message SCALE EMPTY ? will be displayed. Press [ENTER], the message WAIT will be displayed for some seconds. At the end the display will go back to the normal run.

5.4.4 MODIFYNG THE FILTER FACTOR

This function is mainly useful when the weighing system is subject to vibrations.

By altering the value of this parameter, oscillations due to yhe mechanical vibrations can be removed.

Push [CAL] [

↑] [↑][↑] [ENTER], the value of the currently defined filter will be displayed. To alter the value push [ENTER] followed by [

↑][→] to select the desired value. Then push [ENTER] [RUN].

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6. ACCESS PROTECTION TO KEYBOARD

LEVELS

The access to keyboard of the instrument can be protected by mean of some password. Protection levels are the following :

NONE The instrument is not protected

ACTIVE Process parameters cab be altered, but set up data are not accessible.

The instrument is supplied with the default code :

20000000

6.3. PROTECTION INSERTION

Push [SET UP] [ENTER], and the word NOT ACTIVE will be displayed. Push

[ENTER] [ENTER] and use keys [

↑] and [→] to enter the password (20000000 if

not already altered) and finally push [ENTER] ; at the end the word ACTIVE will be

displayed. Push [RUN].

To remove protection push [SET UP] [ENTER] and the word ACTIVE will be

displayed. Push [ENTER] [ENTER] and use keys [

↑] and [→] to enter the

password (20000000 if not already altered) and finally push [ENTER] ; at the end

the word NOT ACTIVE will be diaplayed. Press [RUN].

6.3 MODIFYING THE PASSWORS

The password can be altered by using the following procedure :

Press [SET UP] [

↑] [↑] [↑][↑] [↑] [↑], the word TEST will be displayed. Press

[ENTER] [ENTER] [ENTER] and use keys [

↑] and [→] to edit the new password, terminate with [ENTER].

The new password will be displayed only when the protection is not active.

WARNING !

Before enteringa new password, be sure to make a written copy of it and to store it in a safe place. If the new password will be forgotten, the only way to restore acces to the set up data will be to send the instrument to Thermo Ramsey for service.

15

7. NORMAL USE

7.1 KEYS OF NORMAL USE

The functions which can be used during normal running are the following :

[RUN] key Always returns to the display of the weight. If used while the

weight. If used while the net weight is displayed, will open

the SET UP menu.

[CAL] key Access the calibration functions

[

↑] key Select, NET LOAD, GROSS LOAD, TARE OR ALARMS

[SET POINT] key Allow to set the thresholds.

[-T-] key Set and reset tare. When some tare has been cleared, the

symbol T is displayed on the left side of the screen.

This function is used for many applications, the most common are :

- Clearing the weight of the possible left over on the weight hopper

- Clearing the weight of the container of material that must be weighted.

To activated this function press [-T-] and the indicator will be set to zero.

To show that the function is active, the symbol T will appear on the left side of the display.

WARNING ! This key is always enable. If pressed while the scale is not empty, the indicator will istantaneously display zero.

To go back to the previus function press [-T-].

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8. ALARMS

8.1 GENERALS

Inside the program of the MINI some control functions are included, which allow to verify the correct working of the instruemnt, of the load cells and of the weighing process.

IDENTIFICATION

When the instrument generates an alarm, the cause is displayed alternatively to the weight indication. To identify the cause, see the following table :

THRESHOLD 1 Weight exceeds threshold Nr.1

THRESHOLD 2 Weight exceeds threshold Nr.2

THRESHOLD 3 Weight exceeds threshold Nr.3

THRESHOLD 4 Weight exceeds threshold Nr.4

COLD START Set up data were lost during power off

LOAD CELL FAIL - The power supply to the load cell(s) could be interrupted

- Possible short circuit of the power cables of the load cell(s)

- Possible short circuit of the shield cable with one of the power

cable.

MAX ZERO OCC The outo zero tracking function has compensated all the

possible error of zero according to the specified limit.

OPTIONS

Each alarm can be set as follows :

- NONE no action

- ALARM alarm, acts on alarm cumulative output

To clear the alarm follow the procedure below :

Press [

↑], the display will show : ALARMS ;

Press [ENTER], the display will show the pending alarm ;

Press [ENTER], until the display will show the message : NO ALARMS and then press [RUN].

Only alarms that are actually not existing will be reset. If the condition that caused the alarm message is still existing, the alarm will not be cleared.

8.5 HOW TO ENABLE OR DISABLE AN ALARM FUNCTION

To enable or disable an alarm act as follows :

Press [SET UP] [

↑] [↑] [↑] [↑] [↑] [ENTER]. The description of the first alarm will be displayed : THRESHOLD 1.

Press [

↑] until the desired alarm is displayed.

Press [ENTER] [ENTER] and use the [

↑] key to properly set the alarm code, atthe end press [ENTER] [RUN].

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9. OPTIONAL FUNCTIONS

9.1 GENERAL

In addition to the normal weight indication, the instrument provides some auxiliary functions making it suitable for simple automation process.Adding the SERIAL

COMMUNICATION BOARD (OPTIONAL) a serial signal can be transmetted to supervisor or control instruments, or printer.

Optional boards are usually installed by Thermo Ramsey personnel only.

9.2 OPTIONS AVAILABLE IN STANDARD INSTRUMENT

The following list contains options that are already implemented in the standard instrument and that can be recalled without installing additional hardware.

9.2.1 SETTING THRESHOLDS (THRESHOLD 1/2/3/4)

The instrument provides four thresholds, each having the following features :

- SET THRESHOLD Nr. Weight over (or under) which to take action

- VAR THRESHOLD Nr. Variable on which the threshold is calculated. Can be

the NET WEIGHT or the GROSS WEIGHT.

- TYPE THRESHOLD Nr. Can be :

HIGH The relay is activated when the weight is over

the set point.

LOW The relay is activated when the weight is lower

The set point.

- HYSTERESIS THR. Nr. Hysteresis used before restoring the normal status of

the relay. The relay is released when :

HIGH The weight is lower that the set point minus the

hysteresis.

LOW The weight is higher that the set point plus the

hysteresis.

Examples :

THRESHOLD 1 = 300 kg VAR. THRESHOLD 1 = NET WEIGHT

TYPE THRESHOLD 1 = HIGH HYST THRESHOLD 1 = 27 kg

The relay is excited when the net weight is higher than 300 kg and is released when the net weight is lower than 273 kg.

THRESHOLD 1 = 20 kg VAR. THRESHOLD 1 = GROSS WEIGHT

TYPE THRESHOLD 1 = LOW HYST THRESHOLD 1 = 3 kg

The relay is excited when the gross weight is lower than 20 kg and is released when the gross weight is higher than 23 kg.

To alter parameters act as follows :

Press [SET POINT] followed by [

↑] as many times as required to display the desired parameter. Then press [ENTER] and [

↑] [→] until the displayed value is the desired one. At the end press [ENTER] [RUN].

The contacts of the output relayes are available on the rear terminals.

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9.2.2 DIGITAL INPUTS SETTING

The instrument can be connected to three dry contacts. One of the following functions can be assigned to each input :

SET TARE Copy gross weight into the tare memory. Net weight is set to zero

RESET TARE Clear tare memory. Net weight is set equal to gross weight.

UPDATE TOTAL Add net weight to the total.

CLEAR TOTAL Set the total to zero.

HOLD WEIGHT Stop updating the displayed weight. Net and gross weights are

frozen.

CLEAR PEAK The memory containing the “pesk” weight is cleared.

NOT USED The input is not used.

CLEAR ALARMS Reset all pending alarms.

9.2.3 DIGITAL OUTPUT SETTING

The instrument has four relays that provide four dry contacts on the rear terminals block. One of the following functions can be assigned to each output :

THRESHOLD 1 High or low threshold Nr.1

THRESHOLD 2 High or low threshold Nr.2

THRESHOLD 3 High or low threshold Nr.3

THRESHOLD 4 High or low threshold Nr.4

NOT USED The output is not used

ALARM Relay is off when an alarm occurs

INSTRUMENT READY Relay is on when the instrument is powered on, not

in alarm condition, not in calibration

WEIGHT STABLE Relay is on when the weight is stable (weight

Indication varies less than one division)

TOTAL UPDATED The total has been updated adding the net weight. A

pulse is generated on this output.

TOTAL CLEARED The total has been cleared. A pulse is generated on

this output.

9.2.4 AZT OPTION (AUTO ZERO TRACKING FUNCTION)

This function is used to keep the net weight equal to zero, if the are variations are contained within a predefined band.

To enable the function press [SET UP] [

↑] [ENTER] [↑] [↑] [↑] [↑] , the display will indicate AZT. Press [ENTER] [ENTER] and use keys [

↑] and [→] to enter the percentage value of the AUTO ZERO TRACKING BAND with reference to the scale capacity. End with [ENTER].

Press [

↑] the display will show AZT TIME.Press [ENTER][ENTER] and use keys

[

↑] and [→] to enter thr percentage value of the AUTO ZERO TRCKING TIME used to average the weight before zeroing. End with [ENTER].

Press [

↑] the display will show AZT LIMIT.Press [ENTER][ENTER] and use keys

[

↑] and [→] to enter the percentage value of the AUTO ZERO TRACKING

LIMIT, with reference to the calibration zero. End with [ENTER] [RUN].

Example :

SCALE CAPACITY = 500 kg AUTO ZERO TRACK = 2.0 %

TIME AZT = 5 sec LIMIT AZT = 5.0 %

Weights within plus and minus 1.0 kg (equal to 2% 0f 500 kg) will be zeroed but up to a maximum of plus minus 2.5 kg (equal to 5% of 500 kg).

The weight will ahve to stay stable for a least 5 sec. Before the auto zeroing can take place.

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9.2.5 TOTALIZER (OPTION)

This option is used to know the amount of material weighed with the scale. If the scale is used for a number of weighings and if the number and the total amount has to be recordered, set the instrument as follows :

Press [SET UP] [

↑][↑], the message OPTIONS will be displayed; press [ENTER]

[

↑] [↑] [↑], the message TOTALIZER will be displayed. Press [ENTER] [ENTER] and use [

↑] to select YES. End with [ENTER] [RUN].

To use the totalizer option it is suggested to select one of the digital inputs for the

UPDATE TOTAL function (see par. 9.2.2). Each time the input is closed, the instrument will add the net weight to the totalization register, and the counter register will be incremented by one.

To display the two register (total and counter) just press [

↑] while the instrument is displaying the net weight until the following is displayed :

TOTAL pressing [ENTER] the accumulated total is displayed

COUNTER pressing [ENTER] the number of totalizations is displayed

To clear register act as follow :

Press [

↑] until the TOTAL is displayed. Press [ENTER] [ENTER] and 0 will be displayed. To confirm zeroing press [ENTER]. To alter the value press [

↑] and

[

→]; to skip zeroing (saving the old value) press [RUN].

A digital input can also be programmed to clear the totalization register from remote (9.2.2).

9.2.6 PEACK DET (OPTION)

Use the function to display and save a quick transient signal.

Follow this procedure to enable the function :

Press [SET UP] [

↑] [↑], the message OPTIONS will be displayed. Press

[ENTER] [

↑], the message PEACK SENSOR will be displayed. Press

[ENTER] and then use the [

↑] key to select YES. End with [ENTER] [RUN].

The displayed weight will than not be the net weight, but the highest weight after the last clearing (peack weight).

The memory is cleared using a digital input that must be programmed for the

CLEAR PEACK WEIGHT (see 9.2.2).

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9.2.7 CLOCK (OPTION)

This option is used to configure the CLOCK component installed on the Serial

Board

Press

↑] [↑], the messagge OPTION will be displayed;

Press

↑] [↑] [↑] [↑], the message CLOCK will be displayed.

Press

↑] key to select one of these choices

- MM 58174

- MM 58274

- NOT USED

End to identify the installed component read the reported code on the white label attached over the integrated circuit, installed on the left side of the battery (top view with terminals toward the top).

9.3 OTHER SPECIAL FUNCTIONS

Here follows a list of the special functions inside the instrument.

9.3.1 CURRENT (mA) OUTPUT

If the instrument was already set by the factory, after installing the follow this

procedure :

Press [SET UP] [

↑] [↑], the message OPTIONS will be displayed. Press [ENTER],

the message CURRENT OUTPUT will be displayed; press [ENTER] [ENTER] and

use the [

↑] key to select YES. End with [ENTER] [RUN].

9.3.1.1 MODIFYING mA RANGE

The instrument is pre-set to the 4-20 mA operating range.

Other available ranges are : 0-20mA; 20-0mA; 20-4mA.

Close the jumper J1 on the optional board or insert a resistance of 500 Ohm on the terminal block 29 and 30 to select the output with 0-10V.

To select a range different from the default one, act as follows :

Press [SET UP] [

↑] [↑] [↑] [↑], the message CURRENT OUTPUT will be displayed. Press [ENTER], the message mA RANGE will be displayed; press

[ENTER] [ENTER] and use the [

↑] key to select the desired range. End with

[ENTER] [RUN].

9.3.1.2 mA VALUE SELECTION

The mA output can transmit one of the following variables :

GROSS The current output is proportional to the gross weight and is

not affected by the [-T-] key.

NET The current output is a proportional to the net weight and it

is set to the minimum value when the [-T-] key is pressed.

PEACK WEIGHT The current output is proportional to the peack weight in

memory.

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To select the current referred to the peack weight, act as follows :

Press [SET UP] [

↑] [↑] [↑] [↑], the message CURRENT OUTPUT will be displayed. Press [ENTER] [

↑], the message mA VALUE will be displayed; press [ENTER] [ENTER] and use the [

↑] key to select the desired variable.

End with [ENTER] [RUN].

9.3.1.3 mA ZERO AND mA 100% SELECTION

Special function to use the 4-20mA signal within a defined range:

mA ZERO The percentage of the trasmitted variable corresponding to

the minimum signal.

mA 100% The percentage of the trasmitted variable corresponding to

the maximum signal.

Example: To transmit a 4-20mA signal in a range from 20% to 80% of the

scale capacity.

mA ZERO : set 20%

mA 100% : set 80%

By default the output signal is trasmitted on all the work range of the scale so

the standard set up is the following :

mA ZERO : set 0%

mA 100% : set 100%

9.3.1.4 mA ABS VAL SELECTION

The mA output can be set for a charging or discharging batch.

CHARGE BATCH mA is proportional to the material loaded in the hopper.

DISCHARGE BATCH Hopper has been filled up and SET TARA has been

made [-T-], the mA signal is proportional to the material

taken out from the hopper.

For uses with charge batch select : mA ABS VAL = NO

For uses with discharge batch select : mA ABS VAL = YES

To make the selection press [SET UP] [

↑] [↑] [↑] [↑], the message

CURRENT OUTPUT will be displayed. Press [ENTER] [

↑] [↑] [↑] [↑], the message mA ABS VAL will be displayed ; press [ENTER] [ENTER] and use the [

↑] key to select the desired value. End with [ENTER] [RUN].

9.3.2 SERIAL COMMUNICATION LINE

(AVAILABLE with OPTION Serial Communication Board)

The serial communication line allows to connect the instrument to computers and

PLC’s. The line can be configured as RS 423 or RS 422.

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9.3.2.1 SET UP OF THE SERIAL COMMUNICATION LINE

The standard instrument is supplied with :

- RS 423

- CTS (not checked)

To set the serial output, select some jumpers on the serial board

Cod. 11-100-11, looking at the following table.

RS 423 (RS 232)

RS 422 (RS 485)

(A) Open (B) Closed

(A) Closed (B) Open

TERMINATOR SELECTION (J2)

YES

NO

(A) Open (B) Closed

(A) Closed (B) Open

Access SET UP data, press [

↑] [↑], the message OPTION will be displayed.

Press [ENTER] and [

↑] and the message SERIAL LINE will be displayed.

Press [ENTER] [ENTER] [

↑] and select YES, end with [↑] key select the

SERIAL COMMUNICATION function. Press [ENTER] [ENTER] and select the desired function by [

↑]. End with [ENTER].

PPROTOCOL can be selected between the following :

- PC MASTER, Ramsey standard

- 3964R, Siemens standard

- DF1, Allen Bradley standard

- MODBUS, AEG standard

Then with [

↑] set the communication data.

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LINE SPEED can be 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 baud

STOP BITS can be 1 or 2

PARITY can be EVEN, ODD, NONE

WORD LENGHT can be 7 or 8

The communication protocols are described on a separate manual.

9.4 SET UP DATA RECORDING

SET UP parameters must be defined according to specific application. The table in the next page, allows to record all data you have inserted. The values in brackets are initialization data : in case of general zeroing (COLD START) the values in brackets will appear on the display. In case of loss of data, due to failure or special maintenance, the instrument will be quickly restored to its normal functions.

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The instrument MINI 11-100 is equipped with some test functions to detect possible failure.

PASSWORD On password can be installed to access the instrument.

A/D GROSS Reading of the number, between 0 and 32000 divisions, calculated by

the A/D converter.

A/D NET Reading of the number, less the tare (zero), calculated by the A/D

converter. This value is included between o and 32000 divisions

(the signal is not filtered).

LOAD CELL SIGN. Reading of the load cell signal. This value must be included

between 0 and 30mV.

E2PROM Check if the writing is right. Usually 0 will be displayed.

VERSION The version of the installed program is displayed (31.xx.xx.xx).

MEMORY TEST Check the writing on RAM is right. Press [ENTER] to start

the memory test. If it will be positive, the message RAM OK

will be displayed, on the contrary RAM ERROR.

INPUT TEST Test of the three digital inputs.

Open contact = 0 Closed contact = 1

OUTPUT TEST Test of the four digital outputs. Use [

↑] and [→] to enable / disable

the outputs.

LAMP TEST Test of the display and leds on the frontal panel.

FORCE VAL Force a signal of current output. Use key [

↑] and [→] to set a value

Referred to the scale capacity.

10. ADVANCED USE

To use the advanced functions of the instrument refer to Service Manual. For those companies who intend to train their personnel, Thermo Ramsey organizes some individual and group courses of instruction. For information, contact Service

Departement.

11. MAINTENANCE

11.1 PREVENTING MAINTENANCE

No preventing maintenance is required. Periodical verifications of calibration could be needed for mechanical reasons related to the weighing system (tare modification, supports movements, etc.).

The interval between calibration verifications depends upon the use and the required accuracy.

We suggest starting to check for zero and span once a day with simulated method.

Then use longer intervals up to the maximum that is compatible with the required accuracy.

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12. SPARE PART LIST

Thermo Electron supplies the following spare parts :

MINI 11-100F

Mother Board CPU

Supply and Relays Chassis

Serial Out Board

Display Board

Key Board

Set N°10 fuse 1A 5x20 supply 115V

Set N°10 fuse 0.5A 5x20 supply 230V

MINI 11-100P

Mother Board CPU

Supply and Relays Chassis

Serial Out Board

Key and Display group

Set N°10 fuse 1A 5x20 supply 115V

Set N°10 fuse 0.5a 5x20 supply 230V

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