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
Page 4
MSI-4260
Port-A-Weigh
•
User Guide
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 elec-
tronics 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
with Automatic Sleep Mode and Automatic Power Off
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
un
fi
ltered faster reading of
A/D
