Rice Lake CS 750 User Manual
CS750 Crane Scale
Users Manual
Intercomp Co.
3839 County Road 116
Medina, MN 55340
(763)-476-2531
1-800-328-3336
Fax: 763-476-2613
www.intercompcompany.com
Manual#: 700002-R
Page 1 of 27
Table of Contents
CS750, Users
Rev R, May 2009
INTRODUCTION ....................................................................................................................................................... 3
S
PECIFICATIONS
Controls................................................................................................................................................................3
Electrical.............................................................................................................................................................. 3
Performance.........................................................................................................................................................3
Environmental ...................................................................................................................................................... 3
Physical................................................................................................................................................................ 3
W
EIGHTS AND MEASURES
O
PTIONAL EQUIPMENT
OPERATIONS............................................................................................................................................................. 5
O
PERATING PRACTICES
D
ISPLAY
C
ONTROLS
ON........................................................................................................................................................................ 7
OFF...................................................................................................................................................................... 7
ZERO....................................................................................................................................................................7
BACK LIGHT....................................................................................................................................................... 7
Hidden key ........................................................................................................................................................... 7
R
EMOTE CONTROL
O
PERATION
Use .......................................................................................................................................................................9
Periodic Maintenance .......................................................................................................................................... 9
P
OWER/BATTERIES
Replacement .........................................................................................................................................................9
Rechargeable (Ni-cad) ......................................................................................................................................... 9
.........................................................................................................................................................3
......................................................................................................................................... 4
............................................................................................................................................... 4
.............................................................................................................................................. 5
.................................................................................................................................................................... 6
................................................................................................................................................................. 6
....................................................................................................................................................8
................................................................................................................................................................ 9
....................................................................................................................................................9
MAINTENANCE....................................................................................................................................................... 10
P
ERIODIC INSPECTION
Service Categories ............................................................................................................................................. 10
Inspection Requirements ....................................................................................................................................10
Removal from Service Criteria...........................................................................................................................11
C
ALIBRATION
How to test the calibration .................................................................................................................................12
Calibration switch..............................................................................................................................................13
Enabling the Calibration switch ........................................................................................................................13
How to calibrate the scale..................................................................................................................................13
Weight calibration.............................................................................................................................................. 18
L
EGAL-FOR-TRADE SEALING
TROUBLESHOOTING ............................................................................................................................................19
ERROR MESSAGES ................................................................................................................................................ 21
PARTS AND ACCESSORIES.................................................................................................................................. 22
P
ARTS LIST
SERIAL OUTPUT (OPTIONAL) ............................................................................................................................24
HOW TO REACH INTERCOMP SERVICE.........................................................................................................27
...........................................................................................................................................................12
.............................................................................................................................................................. 23
.............................................................................................................................................. 10
...................................................................................................................................18
Page 2 of 27
CS750, Users
Rev R, May 2009
Introduction
This manual contains specifications, operation instructions, and calibration instructions
for Intercomp's model CS750 crane scale.
Specifications
Controls
General: Zero, On, Off, Backlight
Display: 5 digit LCD.
Indicators: lb, kg.
Electrical
Batteries: 6 X D-size disposable alkaline dry cells or rechargeable Nickel-
Cadmium cells.
Battery life: Up to 250 hours with alkaline batteries. Approximately 80 hours
on a set of fully charged Ni-Cad cells.
Resolution: 20 bit A/D delivers over 1,000,000 internal counts.
Filtering: 6 Pole, 10 Hertz low pass.
Auto off: Low battery, or after adjustable time without use or motion.
Sleep
mode:
Auto-Zero: Satisfies all HB-44 requirements; selectable 0.6, 1, or 3
Display sleep mode after adjustable time without use or motion.
graduations.
Performance
Accuracy: ±0.1% of applied load or ± display graduation, whichever is greater.
Environmental
Humidity: 10 to 95% Non-Condensing
Temperature: Storage: -40 C to +75 C. / -40 F to +170 F.
Operating -10 C to +50 C. / +14 F to +122 F.
Physical
Dimensions:
Control Box: 4.25" x 5" x 8.5". / 10.8 cm X
12.7 cm x 21.6 cm.
Lifting eye to hook (Standard): 12" / 30.5 cm.
Weight: 7.5 lb. / 3.4 kg.
Page 3 of 27
CS750, Users
Rev R, May 2009
Weights and Measures
The CS750 meets or exceeds class III standards for 3000
division accuracy from 300 lb to 1000 lb. The certification was
completed by the National Type Evaluation Program (NTEP)s in
accordance with the National Institute of Standards and Technology
(NIST) Handbook 44. A NTEP Certificate of Conformance Number
96-135 was issued under the National Conference of Weights and
Measures.
Optional Equipment
RS232 Serial data output (100721)
This option adds an RS232 connection so the unit may transmit a continuous output to
communicate with a computer or remote display.
LED Display (100725)
Optional LED (light emitting diode) display instead of the standard LCD (liquid crystal
display) display. An LED is fully readable in pitch-dark lighting situations.
Battery pack and 120V external charger (100730)
Rechargeable Ni-Cad battery pack (6 D-cells) with 120V external charger. Standard
power uses 6 disposable alkaline dry cells.
Battery pack and 220V external charger (100731)
Rechargeable Ni-Cad battery pack (6 D-cells) with 220V external charger. Standard
power uses 6 disposable alkaline dry cells.
Direct Power on crane unit, 120V (100723)
This option allows the CS750 to use 120V power instead of batteries.
Direct Power on crane unit, 220V (100727)
This option allows the CS750 to use 220V power instead of batteries.
Set Points, dual channel, (100792)
This option allows for 2 external set points. When the specified weight (set point) is
reached, a logic level high will be on the set point connection. Set points are used with
some other device (e.g. alarm, relay) in conjunction to the CS750.
Page 4 of 27
CS750, Users
Rev R, May 2009
Operations
Operating Practices
Warning: The crane scale will be operated by qualified designated persons, trainees
under the direct supervision of designated persons, maintenance and test personnel
when in performance of their assigned duties, or lifting device inspectors.
Warning: Do not exceed the rated load limit of the crane scale.
Warning: The crane scale shall be applied to the load in accordance with the
instruction manual.
Warning: Prior to lifting the operator shall make sure that all ropes or chains are not
kinked and if multiple lines are used they are not twisted around each other.
Warning: Ensure that the load is correctly distributed for crane scale use.
Warning: Ensure the temperature of the load does not exceed the maximum
temperature limits of the crane scale.
Warning: Ensure that swinging of the crane scale is minimized when positioning it over
the load.
Warning: Avoid any sudden acceleration of deceleration when moving the load.
Warning: Do not allow the crane scale or the lifter to come into contact with any
obstruction when moving the load.
Warning: Do not operate the crane scale if it has damaged, malfunctioning or missing
parts.
Warning: Do not lift people with the crane scale.
Warning: Do not lift suspended loads over people.
Warning: Do not use the crane scale to pull side loads or to slide loads unless
specifically authorized by a qualified person.
Warning: Do not leave suspended loads unattended.
Warning: Do not remove or obscure warning labels.
Warning: Do not operate the crane scale without having read and understood the
operating manual.
Page 5 of 27
CS750, Users
Rev R, May 2009
Warning: Stay clear of suspended loads.
Warning: Do not lift loads higher than necessary.
Warning: Do not make alterations or modifications to the crane scale.
Warning: Ensure all portions of the human body are kept clear of all device involved
with the rigging during the lift.
Display
Controls
Hidden key
Page 6 of 27
CS750, Users
Rev R, May 2009
ON
Press this button to turn the scale on. The scale tests itself; when these tests
have completed successfully, the system begins weighing.
Note: If you used the remote control to turn off the scale (the last time), you must
first press the OFF key, then press the ON key.
OFF
Press this button to turn the scale off.
ZERO
Tells the scale to display a zero weight. This button is used any time the scale
shows a non-zero value with no weight on the hook. If you press ZERO with
weight on the hook, that weight becomes the zero condition for the scale. This
can be useful to cancel the weight of any weighing fixtures, such as containers,
chains or cables. When this weight is removed, a negative weight shows until
the system is zeroed again. NOTE: The “zero” command will be delayed any
time a change in weight is detected. If there is continuous motion for more than
20 or 30 seconds, the zero command will be rejected and the scale will return to
normal weighing.
NOTE: The scale contains a feature called Auto Zero Tracking (AZT), which
corrects for slight zero changes during normal operation. If small weights are
added slowly, the scale could zero them off.
BACK LIGHT
Turns the back light on or off for the LED display.
Hidden key
The switch referred to as the hidden key is unlabeled and located directly to the
left of the ZERO key. This switch has no function except during calibration.
Page 7 of 27
Remote Control
The circled keys on the diagram below are active for the CS750 crane scale.
Notes: Need to
press twice to turn
on.
The ON key on
the scale must be
pressed to initially
turn on the
CS750.
Numeric keypad:
Used when entering
a number
CS750, Users
Rev R, May 2009
Used when
entering a number
Calibrate: Press to
advance through
calibration menu
Used when
entering a number
Remote Control Keypad Layout
Page 8 of 27
Operation
Use
Periodic Maintenance
CS750, Users
Rev R, May 2009
Power/Batteries
Replacement
On the right side panel, remove the two screws that hold the back plate secure.
Slide this plate out to access the batteries inside. Change the cells, being
careful to note battery orientation.
You may use 6 rechargeable Nickel-Cadmium “D” cells or 6 standard “D” cells in
the CS750.
Warning: Do not plug the charger in while there are standard “D”
cells inside. This could result in damage to the batteries and your
scale.
Rechargeable (Ni-cad)
The typical recharge time for Ni-Cad cells is 16 hours. The rechargeable
batteries have a life span up to 1000 cycles.
Page 9 of 27
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