MAS 640 Series User manual

MAS 640 Instruction Manual Rev. 0A
MAS 640
Instruction Manual
MAS Advanced Measurement Solutions
www.massensors.com
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MAS 640 Instruction Manual Rev. 0A
Table of Contents
1. Introduction........................................................................................................................................................3
2. Specification.......................................................................................................................................................3
2.1. General Technical Data ...................................................................................................................3
Figure 2: Mounting holes distance in mm ....................................................................................................
2.2. Applications.............................................................................................................................................
2.3. Technical Data A/D Converter...................................................................................................................
3. Putting Into Operation........................................................................................................................................5
3.1. Opening the Instrument..............................................................................................................................5
3.2. Connecting a Weighing Platform...............................................................................................................5
3.3. Connecting to the Serial Interface .............................................................................................................6
. Basic Functions..................................................................................................................................................7
.1. User Interface............................................................................................................................................7
.2. Operation Keys .........................................................................................................................................7
.3. Note on Stability ........................................................................................................................................8
. . Front Panel Annunciators (LEDs)..............................................................................................................9
.5. Switching the Instrument On and Off.........................................................................................................9
.6. Zeroing.......................................................................................................................................................9
.7. Simple Weighing........................................................................................................................................9
.8. Weighing with Tare..................................................................................................................................10
.9. Printing/transferring data..........................................................................................................................10
5. Special Functions.............................................................................................................................................10
5.1. Special Function Keys..............................................................................................................................10
5.2. Counting...................................................................................................................................................10
5.3. Setting a Filtering Level...........................................................................................................................11
5. . Accumulate Weighing..............................................................................................................................11
5.5. Printout Select....................................................................................................................................11
5.5.1. Printout Select Options....................................................................................................................12
5.6.1. Autozero/Zero Tracking Options...........................................................................................................13
6. Setup................................................................................................................................................................13
6.1. Entering the Setup Mode.........................................................................................................................13
6.2. Main Menu Setup Functions....................................................................................................................1
6.2.1. Switching Between the Setup Functions from Main Menu..............................................................1
6.2.2. Editing Function Content..................................................................................................................15
6.2.3. Accepting or Canceling Changes ....................................................................................................15
6.3. Example Setup Table for Single Interval Weight Measurements............................................................16
6. . Example Setup Table for Two Interval Weight Measurements................................................................16
7. Calibration Routines ........................................................................................................................................17
7.1. Zero Calibration.......................................................................................................................................17
7.2. Span Calibration......................................................................................................................................18
8. Saving Changes...............................................................................................................................................19
9. Leaving Setup mode .....................................................................................................................................19
10. Error Messages Table....................................................................................................................................19
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MAS 640 Instruction Manual Rev. 0A
1. Introduction
The weight indicator MAS 6 0SS was designed for fast and accurate high resolution measurements. Its
performance is based on a 2 bit delta sigma A/D converter. Water resistant housing allows this instrument to
work under very demanding industrial environments with years of constant quality.
This manual provides technical specification as well as instructions for setup and use of the instrument.
2. Specification
2.1. General Technical Data
Main display 7 segment LED display, 6 numbers, 20 mm high
Housing ABS plastic, protection class IP66
Power Supply Power adapter 12-15V DC
Data Interface RS232
Operating Temperature -10°C... + 0 °C
Storage Temperature -20°C...+60 °C
Relative Humidity 10...85 %, non condensing
Weight Approx 1 kg
Figure 1: Case dimmensions in mm.
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MAS 640 Instruction Manual Rev. 0A
Figure 2: Mounting holes distance in mm
2.2. Applications
Weighing functions
● Simple weighing
● Check weighing
● Zero setting, Zero tracking, Autozero
● Taring, Clearing tare
● Counting
● Totalization
Optional functions ● Barcode printer connection
● Barcode scanner connection
● AC relay/DC relay output
● 0-10V output
● -20 mA output
2.3. Technical Data A/D Converter
Load Cell Excitation Voltage +5V DC
Load Cell Drive Up to 8 x 350 Ohm load cells
Maximum Displayed Resolution 1 : 60.000 d
Measurement Update Rate 10 Hz
Loadcell Input Sensitivity Up to 3mV/V
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MAS 640 Instruction Manual Rev. 0A
3. Puttin Into Operation
3.1. Openin the Instrument
WARNING!
Before opening the instrument disconnect the power cord from the power supply.
To open the instrument unscrew the 8 screws from the back and lift the cover.
3.2. Connectin a Wei hin Platform
●Insert the weighing platform cable into the instrument through the cable gland
●Connect the weighing platform cable to J3 terminal according to the
table below.
Pin 1 2 3 5 6
Assignment SIG+ SIG- EXC+ EXC- REF+ REF-
Note:
For wire loadcells J1 and J2 pads should be solder bridged or Ref+ and Ref- shoud be connected to EX+
and EX- respectively.
Figure 2: Location of J3 terminal on the digital module inside the instrument.
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MAS 640 Instruction Manual Rev. 0A
3.3. Connectin to the Serial Interface
●Insert the interface cable into the instrument through the cable gland.
●Connect the interface cable to the J10 (3-pin terminal) according to the table below.
Pin 3 2 1
Assignment Rxd Gnd Txd
Figure 3: Location of J10 terminal on the digital module inside the instrument.
Default parameters are: 800 bps, 8 data bits, no parity, one stop bit, no handshake.
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MAS 640 Instruction Manual Rev. 0A
4. Basic Functions
4.1. User Interface
Figure 5. Front panel interface
4.2. Operation Keys
KEY DESCRIPTION
<POWER>
The <POWER> key is used to turn the instrument on and off.
<ZERO>
The <ZERO> key is used to execute zero level adjustment.
Use the <ZERO> key once empty scale has drifted away from zero reading.
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MAS 640 Instruction Manual Rev. 0A
<TARE>
The <TARE> key is used to display zero on the display when an empty container is
placed on the weighing platform.
Use the <TARE> key to cancel mass of an empty container
<FUNCTION>
The <FUNCTION> key is used to select one of the special function. Refer to the
Special Functions [ section 5.] for the details on the available functions.
<PIECES> The <PIECES> key activates counting pieces of similar weight like screws,
nails, etc.
A long press of the <PIECES> key is used to declare the number of sample pieces
used as a reference for counting. For more details on how to use this function refer to
the Special Functions [ section 5.].
<PRINT>
The <PRINT> key sends the current status to a connected printer allowing a printout
of the displayed stable readings, i.e. weight, total weight, number of pieces.
Please note, readings must be stable on the display before printing.
4.3. Note on Stability
The Unit has to wait for stable readings when the <ZERO>, <TARE> or <PRINT> key is pressed.
That way execution of associated operation may be delayed by a few seconds. Readings are stable when you
see the LED of stable reading symbol [section . ] highlited.
If readings are unstable for more than 10 seconds message error -E06- will be displayed and printing
operation will be canceled.
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MAS 640 Instruction Manual Rev. 0A
4.4. Front Panel Annunciators (LEDs)
Symbols on the
front panel
Description
I, II Indicates which one of two ranges is actually in operation
ƩIndicates that total weight is being displayed
Indicates stable readings for weighing or counting
k , lb Indicates unit of weight measurements
pcs Indicates that the instrument is working in counting pieces mode
zero Indicates that instrument is at zero reference level
net Indicates that Net values are being displayed
Indicates the standby mode
4.5. Switchin the Instrument On and Off
 Press the <POWER> key to turn on the instrument.
The display lights up, serial number appears and the instrument performing a self test.
 Press the <POWER> key once instrument is in the operation to switch to the standby mode.
The standby mode is indicated by the standby LED.
Warnin :
While in the standby mode the instrument is still connected to AC mains power supply. During the
maintenance disconnect instrument's power supply plug from the wall socket.
4.6. Zeroin
 Unload weighing platform.
 Press the <ZERO>key.
Zero level is indicated by lighting up the zero LED placed just above the <ZERO> key.
4.7. Simple Wei hin
 Press the <ZERO> key to light up zero annunciator if needed.
 Place the weighing sample on the weighing platform.
 Wait until stab. annunciator is on.
 Read weighing result.
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MAS 640 Instruction Manual Rev. 0A
4.8. Wei hin with Tare
Place the empty container on the weighing platform and press the <TARE> key. Instrument will cancel a
container mass by displaying zero.
On the main display, after canceling a container mass, the net LED will light up just above the <TARE>
key to indicate the Net weight readings.
To cancel tare effect press the <TARE> key once instrument's readings are zero or below zero.
4.9. Printin /transferrin data
 Press the <PRINT> key.
The display contents are printed out or transferred to a computer.
Refer to the section 5.5 for the available printout options.
Note:
Unstable readings will not be printed out or transfered to a computer.
5. Special Functions
5.1. Special Function Keys
Special functions are accesed through the Operation Keys.
Follow the symbol under each Operation Key to recognize its additional function.
5.2. Countin
 Place the container on the weighing platform and press the <TARE> key if needed.
 Place the known number of sample pieces to be counted into the container.
Note: The greater sample number and weight, the more accurate are the counting results.
 A long press the <PIECES> key, then set the number of sample pieces to be loaded with the <TARE>,
<ZERO> or <PIECES> keys, according to the arrow markings under each key.
 Accept changes by pressing the <FUNCTION> key.
 Read the number of peaces after stab annunciator lit.
To exit counting mode short press the <PIECES> key. Unit will go back to the weighing mode.
Note: Once the number of sample pieces is stored by the unit memory there is no need to load the sample
pieces again until a different item is to be counted.
User can simply toggle between counting mode and weighing mode by short pressing the <PIECES> key.
If there is no sufficient load of sample pieces during counting mode unit displays the message error -E08-.
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