MSI 4260, Port-A-Weigh MSI-4260 User Manual
MSI4260
PORT-A-WEIGH CRANE SCALES
User
Guide
Quality
Industrial
Weighing
and Force
Measurement
Equipment
Measurement Systems International
M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
Please read this manual carefully before using the MSI-4260 Port-A-Weigh
Program Number Capacity and Resolution
Serial Number Cal Number
Page 2 MSI-4260 Port-A-Weigh • User Guide
IMPORTANT
M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
TABLE OF CONTENTS
Introduction ...........................................................................4
Specifi cations ........................................................................4
Features .................................................................................5
Options ..................................................................................6
Unpacking .............................................................................6
Battery Pack ..........................................................................7
Battery Operation ..................................................................7
Battery Life ...........................................................................7
Battery Charger .....................................................................8
Battery Removal and Replacement ....................................... 9
Operation Guide ....................................................................9
Power ....................................................................................9
Zero .....................................................................................10
T are .....................................................................................10
F1 ........................................................................................ 11
Test (tESt) ...........................................................................11
Accessing the Service Counters ..........................................12
Reset the Service Counter Warning ....................................13
Total (totAL) .......................................................................13
Manual T otal .......................................................................13
Auto T otal ...........................................................................13
To Clear the Last Totalled Weight ....................................... 14
To Clear the Total Value ...................................................... 14
Viewing Total ......................................................................15
Unit (lb/kg) ..........................................................................15
Peak (Phold) ........................................................................15
Net/Gross (nEtGr) ...............................................................16
Scale Setup ..........................................................................16
Quick User Setup Guide .....................................................17
Function (Func) ................................................................... 17
Automatic Power Off (A-OFF) ........................................... 18
Filter (Filtr) .........................................................................18
LED Brightness (LEds) .......................................................19
Unit (kg/lb) ..........................................................................19
Set Points (StPt1, StPt2) .....................................................19
Set Point Entry ....................................................................20
To Disable a Set Point .........................................................20
Total (totAL) .......................................................................20
System Initialize ..................................................................21
Calibration Setup ................................................................21
Quick Calibration Setup Guide ...........................................22
Calibration (CAL) ...............................................................22
Initial Calibration ................................................................ 23
Subsequent Calibration .......................................................25
Fine Calibration (F-CAL) ...................................................25
Calibration with Calibration Offset Resistor (CAL-r) ........ 26
Standards (StAnd) ...............................................................26
Auto Zero Maintenance (AZM) ..........................................27
RF Remote Control ............................................................. 27
Troubleshooting Guide ....................................................... 29
Service Counter Warning .................................................... 31
MSI Limited Warranty ........................................................ 31
Proper Loading Procedures .................................................32
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INTRODUCTION
The MSI-4260 Port-A-Weigh is an electronic, self-contained, battery-operated crane scale.
The scale is made up of three separate sections which house the electronics, load cell and
battery respectively. The sections are bolted together and sealed agaist moisture by the use of
O-Rings. The scale housing is made of impact resistant, marine grade 356 alloy. All electronics are shock mounted and the display window is impact resistant polycarbonate. The
accuracy of the scale meets or exceeds the requirements of National Institute of Standards
Technology, Handbook 44. For most scales, this is 0.1% of applied load.
SPECIFICATIONS
Accuracy: ± 0.1% of applied load ± one displayable increment
Resolution: Standard displayed resolution: 2500 counts Internal A/D resolution: 1,048,576 counts (20 bits)
Capacities: lb 500 2000 5000 10,000 20,000 30,000 50,000 70,000 100,000
kg 250 1000 2500 5000 10,000 15,000 25,000 35,000 50,000
Power: Battery operated, rechargeable sealed lead acid battery pack up to 100 hours of battery life
Display: 5 digit, large 1.2 in (30 mm) high numeric LED with selectable brightness control
Operating Temperature: +14°F to +140°F (-10°C to +60°C) NTEP range -10°C to +40°C
Operating Time: 100+ hours depending on brightness settings and average number of sements lit
Enclosure: Marine grade 356 alloy, sealed to NEMA 4/IP66
Load Cell: Standard 350 Ω Bridge
Indicators: Low Battery, PEAK, MOTION, Center of ZERO, NET, GROSS, TOTAL, X1000, kg/lb, SP1, SP2
Function buttons: POWER - Turns scale on and off
ZERO - Zeros applied load up to 100% of capacity
TARE - Tares applied load and displays weight in Net mode, and returns the scale to Gross mode
F1 - User programmable function switch for use as Test, Unit Select, Total (Auto or Manual),
Peak Hold and Set Points.
Calibration switch
(located behind seal screw): Initiates full digital calibration procedure
Function Switch options: TEST (default), TOTAL, UNIT, PEAK, NET/GROSS, OFF
Auto Zero Maintenance: Standard, can be disabled internally
Auto-Off Mode: Prolongs battery life by turning POWER off after 12 minutes or one hour (operator deter-
mined) of no scale activity
Auto-Sleep Mode: Prolongs battery life by dimming LED display after one minute of no activity
Unit: kg, lb (other Units available with custom calibrations)
Filtering: Low (LO), Medium (HI-1), High (HI-2)
Totalization: Standard: Press button or Automatic; TOTAL weight up to 99999 X 1000 kg or lb
Peak: Uses unfi ltered faster reading of A/D
with Automatic Sleep Mode and Automatic Power Off
Page 4 MSI-4260 Port-A-Weigh • User Guide
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WARNING
Set Points: Two internal standard Set Points and two ultra-bright LEDs on indicator panel
Service Counter: Two independent 24 bit registers; Register 1 updated each time weight exceeds 25% of
capacity; Register
99,999 or register 2 exceeds 1000, display reads "LCnt" for load cell counter; Test function
shows the two readings in order
Connectors: Connections are made with PCB mounted terminal strips allowing easy upgrading. Cables
are brought out through water tight fi ttings
Optional Remote Controller: Option includes On/Off, Zero, Tare, Net/Gross, Total, View Sum, and programmable func-
tion keys
All of these features are housed in a single, low-profi le, cast aluminum housing consisting of
three sections:
1) The front of the scale houses the display, controls and all necessary electronics.
2) The center section contains the load cell, lifting eye and hook.
3) The rear of the scale features a quick access battery compartment.
WARNING: The scale has a safe mechanical overload of 200%, and an ultimate overload
WARNING
of 500%. Overloads greater than 500% may result in structural failure and dropped loads.
Dropped loads may cause serious personal injury or death.
2 updated each time weight exceeds overload; when register 1 exceeds
FEATURES
• Designed to meet or exceed US and International Standards
• Over 100 hours of weighing time utilizing Automatic Sleep Mode
• Automatic Power Off conserves battery life by sensing no activity after 12 minutes or one
hour, determined by operator, and turns Power off
• Automatic Sleep Mode preserves battery life by dimming the LED display after one minute
of no activity
• Rugged construction throughout. Buttons are sealed and rated for over 1 million operations
• Precise high resolution (2500 - 5000 division standard and up to 10,000 possible) 20 bit A/D
conversion coupled with advanced 16 bit micro controller provides world class features and
accuracy
• Five large, 1.2 inch LED digits for clear weight readings from a distance
• Easy to maintain: Full digital calibration assures reliable, repeatable measurements
• Selectable for kgs/lbs; unless prohibited by regulations
• Automatic or manual weight totalization for loading operations
• Easily customized for special applications
• PEAK Mode for stress analysis
• Two Set Points can be set for any in-range weight for operator alearts or process control
MSI-4260 Port-A-Weigh • User Guide Page 5
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The LED display
provides excellent
readability from
full sunlight to
total darkness.
OPTIONS
In the event of an
overload condition,
the display will
fl ash a warning to
the operator.
Options which you may have ordered with your Port-A-Weigh may include the following:
• NTEP approval for use in commercial trade
• Substitute shackle for bottom swivel hook
• Oversized top lifting eye or shackle
• Universal direct power supply: 85-265 VAC, 47-440 Hz / 100-300 VDC
• Heat shield for high temperature applications
• Factory Mutual approved (intrinsically safe for use in hazardous environments)
• RF Remote Controller
UNPACKING
When unpacking the scale from the shipping container, ensure that all assembly parts are
accounted for. Check the scale for any visible damage and immediately report any damage to
your shipper. It is advisable to use the original shipping container when shipping or transporting the Port-A-Weigh.
Page 6 MSI-4260 Port-A-Weigh • User Guide
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BATTERY PACK
The Port-A-Weigh is powered by a 12 volt rechargeable battery. The battery is located in the
rear compartment of the scale. Two stainless steel fasteners secure the battery access door. To
remove the battery for charging; unlatch the fasteners and pull the battery straight out. The
battery will automatically disengage from its connectors and may be plugged into the battery
charger for recharging.
BATTERY OPERATION
BATTERY LIFE
The battery will operate continuously for 100 hours with the LED display before requiring
recharging. The Port-A-Weigh will alert you when the battery is within 2 hours of requiring
recharging by illuminating the “BT” (Low Battery) annunciator.
When the battery requires recharging, the weight reading on the display will be replaced by
“LO”, after which the scale will shut itself off to prevent battery damage. If the On button is
depressed at this point, “LO” will reappear and then the scale will again deactivate automatically.
Instructions for charging are located on the battery charger. Charging time for a completely
discharged battery is approximately 16 hours. A spare battery pack is recommended to keep
the Port-A-Weigh continuously operational.
Note: More frequent charging of the battery prolongs its life.
The MSI-4260 battery life depends on a number of factors: Brightness of the LED display,
the number of segments lit, and the age and condition of the SLA (sealed lead acid) battery.
The MSI-4260 will automatically turn the scale off when the SLA battery drops to approximately 10.5V. You must recharge the battery when this happens. Leaving a discharged
battery in the scale, which has a maintenance battery drain, can result in a deep discharge
battery which will shorten its service life.
SLA batteries do not suffer from memory effects and actually benefi t from frequent recharg-
ings. Recharge the battery whenever it is convinent even when it still has available life. Due
MSI-4260 Port-A-Weigh • User Guide Page 7
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to the maintenance discharge imposed on the battery by the MSI-4260 electronics, do not
store the MSI-4260 away with the battery inside. Remove the battery if the MSI-4260 will
not be used for more than 2 weeks.
Battery Use Guidelines
1) Recharge whenever convenient. Do not wait for the scale to shut itself off if your work
situation permits.
2) If you need the scale continuously, keep a fully charged spare battery at hand. Replace the
drained battery as close as possible to the low battery warning or earlier.
3) SLA batteries that have not been deep discharged should withstand 500 to 1500 charging
cycles.
4) The low battery warning will indicate about 2-4 hours of additional use before the MSI4260 turns itself off.
5) If the MSI-4260 is not going to be used again soon, remove the SLA battery to prevent
deep discharge while the unit is in storage.
6) Recycle the battery to an authorized recycling center when average life drops to 20 hours
or less.
BATTERY CHARGER
Each Port-A-Weigh is shipped with a battery charger designed to charge and maintain the
battery. Exact charging time will depend on the degree of discharge of the battery. A battery removed when the low battery warning fi rst appears should take about 4 hours to fully
charge.
When the battery is new, it may take signifi cantly longer for the initial charge. MSI recom-
mends charging a new battery for 24 hours. It might take several charge/discharge cycles
before full capacity is reached. Deep discharge batteries will also take signifi cantly longer to
charge.
Using the Charger
1) Remove the battery from the MSI-4260. See previous page for removal instructions.
2) Connect the charger assembly to the AC supply (86-260VAC). The Power Status light
should be green. If the Power Status light fails to illuminate, check your AC power connection and make sure the Vin jack is fully seated. AC power cords suitable for any world
location are available from MSI.
3) Plug in the polarized connector to the jacks on the battery.
4) The Charge Status light should turn orange, indicating fast charge.
If the status light remains green when the battery is fi rst plugged in, the battery may be
defective.
5) Charge until the status light turns green.
When the charge cycle is complete, you can (and should) leave the battery on the charger
until it is needed. The charger keeps a maintenance fl oat charge on the battery to ensure the
best possible operation times. For scales that are in high usage, MSI recommends obtaining a
spare battery so one can always be on the charger.
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The charger is a universal input type and is rated for 100-240VAC, 50-60Hz. AC power
cords suitible for any world location are available from MSI.
BATTERY REMOVAL AND REPLACEMENT
1) Turn the MSI-4260 off.
2) With one hand, hold the battery access cover.
3) Release the two latches holding the access cover.
4) Carefully lower the cover and when possible, hold the battery in place. The battery might
be loose and subject to falling.
5) Remove the battery by pulling straight back.
6) Install a fully charged battery by plugging it in to the exposed battery jacks. The MSI4260 may or may not turn on once the new battery is installed.
7) Reseat the access panel.
8) Reset the latches. Insure the latches are completely latched and the plate is fi rmly in
place.
OPERATION GUIDE
POWER
Port-A-Weigh operation is controlled by four push buttons located below the display window.
The four pushbutton functions are as follows:
Function
Turns the scale on/off (toggle action).
MSI-4260 Port-A-Weigh • User Guide Page 9
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Use
1) The battery pack must have enough charge to ensure accurate operation (>10.5V).
2) Ambient temperature must be greater than -10°C and less than 60°C (14°F to 140°F).
Action
1) Press [POWER] and hold for one second.
2) Display check: All segment and indicator LED’s are illuminated for one second.
3) Numerics display the software version number for one second.
4) Any weight on the scale up to 5% of capacity will be automatically zeroed.
5) During display test, all internal operations are checked and any non-conformance causes
an Error message display.
Final
Scale reads the current weight in the last set Mode (NET, GROSS, PEAK NET, PEAK
GROSS).
ZERO
Function
Sets scale to ZERO.
TARE
Use
1) The scale must be stable. The scale will not ZERO if the motion detect indicator is on.
2) The scale must be in the GROSS Mode. The scale will not ZERO in NET Mode.
3) The scale will accept a ZERO setting over the full range of the scale (Legal For Trade
models might have a limited ZERO range). ZERO settings greater than 5% of capacity
will subtract from the overall capacity of the scale.
Action
1) Press [ZERO]. The weight reading must be stable within ±1 division. If this condition is
met, the digits display "0" (or "0.0" or "0.00", depending on resolution).
2) The ZERO setting is stored in backup memory, and the setting will be restored the next
time the scale is turned on.
Final
Digits display "0" (or "0.0" or "0.00", depending on resolution).
Function
TARE IN - Stores a TARE weight when in GROSS Mode and displays all subsequent
readings in NET Mode; or, TARE OUT - Clears the TARE weight when in NET Mode and
returns the scale to GROSS Mode.
Action
TARE IN
1) Press [TARE].
2) The scale must be in GROSS Mode: The entire range of the scale can be tared.
3) The Motion indicator must be off and the weight reading must be stable. (The weight
reading must be stable within ± 1 division).
4) If the Motion condition is met, the NET indicator lights and the weight registers "0". All
subsequent readings are deviations from the set TARE value.
Page 10 MSI-4260 Port-A-Weigh • User Guide
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5) Only positive weight readings can be tared.
6) Setting or changing TARE has no effect on the ZERO setting.
7) Tareing will reduce the apparent overrange of the scale. For example, if a 1000 lb container is tared and the scale capacity is 5000 lb, the scale will overload at a new weight of
4000 lb (5000 - 1000) plus any additional allowed overload (usually 9 divisions).
8) TARE value is stored in backup memory, and the value will be restored the next time the
scale is turned on.
TARE OUT
1) The scale must be in NET Mode.
2) Press [TARE] to clear the value.
3) Returns to GROSS Mode.
Final
TARE IN
TARE is set, displaying NET weight.
TARE OUT
TARE weight will be cleared and the scale will revert to GROSS Mode.
F1
TEST (tESt)
Function
F1 can be programmed to any of fi ve func-
tions:
TEST (tESt), NET/GROSS (nEtGr),
TOTAL(totAL), UNIT(kg/lb) and
PEAK(Phold). See Scale Setup for instructions on programming the F1 function
button.
Action
Press [F1] to initiate the preprogrammed
function.
Function
Provides a functional system test, and an
on-demand display check without disturbing the current weighment. Also provides
calibration verifi cation in the form of a load
cell CAL number.
Action
1) Press [F1] (Function button must be
programmed as Test (see Scale Setup)).
2) Battery condition is displayed in Percent
of battery life remaining with b = xxx
fi gure from 0 to 100 on the digits (in 5%
increments).
3) All segments and indicators are dis-
MSI-4260 Port-A-Weigh • User Guide Page 11
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