IVDT SkidWeigh Classic SC5 Series Use and care manual

Installation & Calibration Manual
Electric Pallet Truck Check Weighing Systems
SkidWeigh Classic SC5 and SC5-OEM Series
SC5EP
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

General Installation Guide
This SkidWeigh Classic SC5 / SC5-OEM systems installation & calibration guide describes how to install, calibrate,
test and use your electric pallet truck on-board weighing system. Following the instructions in this guide will enable
you to get your system setup and operating quickly. In the event that you require additional assistance, please
contact customer support via e-mail at [email protected], visit www.skidweigh.com or contact us at the
address and or contact number below:
Integrated Visual Data Technology Inc.
3439 Whilabout Terrace, Oakville, ON, Canada, L6L 0A7
Phone: [phone]
Safety
Always disconnect the vehicle battery while installing SkidWeigh systems or any other electronic product.
Make sure that unit, pressure transducer and any other associated cables are securely mounted and do not impede any
of the vehicle’s controls. Use care when routing the component cables. Route the cables where they will be protected.
Use commonly accepted install practices for after market industrial vehicle electronic devices.
The installation of the SkidWeigh systems should only be performed by a lift truck dealer technician or end user with
electro and hydraulic experience.
Here are two acceptable methods of making a wire connections:
* Soldering your connections (recommended)
* Crimp connectors (with the use of the proper crimping tool)
Regardless of the method you choose, ensure that the connection is mechanically sound and properly insulated. Use
high quality electrical tape and shrink tubing where necessary. This product is connected directly to the vehicle’s ignition
switch, operating voltage from 12 to 55 VDC.
Electro-Magnetic Compatibility
CE conformity to EC directive 89/336 (EMC) by application of harmonized standards: Interference stability EN 61000-6-2
and EN 61326-1 interference emit EN 61000-6-3, EN 61326-1 for the pressure transducer.
SkidWeigh Classic SC5 Series
Our policy is one of continuous improvement and the information in this document is subject to change without notice.
Check that software version displayed on LED is the one applicable for your application.
Overview of Components
The standard SkidWeigh Classic SC5 Series check weighing system consist of the following components:
* Digital indicator with wiring harness, mounting bracket and anti-vibration mount
* Hydraulic pressure transducer with 3 wires cable
* Installation & Calibration manual and operator usage instruction
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Operational Principal
The SkidWeigh Classic systems operation principal is based on the hydraulic pressure transducer mounted in the
vehicle lifting hydraulic circuit. The increase in the hydraulic pressure will activate the specific “weighing cycle” algorithm
and initiate automatic motion control of the hydraulic lift motor. The microprocessor will take a readout of the
predetermined valid pressure transducer input at a sample rate of 16000 readings per measurement session and will
convert it to the load weight that will be shown on LED display.
Pressure Transducer Installation
The pressure transducer must be installed in the lifting hydraulic line
between the lift control valve and lift cylinder. Mount a T-piece in
hydraulic line for the installation of the pressure transducer.
Pressure Transducer Installation Precautions
Before installation of the pressure transducer the hydraulic lift
circuit must be pressure free.
Make sure that the installed pressure transducer will not
touch any moving parts or vehicle assembly once installed
while in normal operation.
The pressure transducer has a 1/4”-18 NPT male thread.
Use thread seal to ensure tight fit.
Mounting Location for Digital Indicator
Use the mounting bracket with the anti vibration
mounts and fasten the digital indicator to the
vehicle dashboard, or any other convenient place
on the electric pallet truck body There are many
examples of mounting locations that will depend
on the vehicle model. However, additional
mounting items such as a flat brackets may be
needed to help secure the unit.
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Electrical Connections!
All SkidWeigh systems operate from 12 to 55 VDC.
Orange Wire (+) Key switch On position
Brown Wire (-) Battery negative
Red Wire, connect to RED wire of the pressure transducer cable
Black Wire, connect to BLACK wire of the pressure transducer cable
White Wire, connect to WHITE wire of the pressure transducer cable
Two Black Wires (two separate wires) are used for lift motor pump solenoid interface (SC5 system)
Electric Pallet Truck Lift Motor Pump Solenoid Interface
Disconnect one wire from solenoid coil terminals, positive or negative side.
Splice two wires from the indicator in series with disconnected wire and coil terminal.
The SC5-OEM electric pallet truck weighing systems are the OEM’s version. Two wires from
main wiring harness (Yellow and Green wires)are used for lift pump motor solenoid interface.
(System is supplied with two extension wires, Yellow and Green)
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7
Orange Wire (+) Key switch On position
Brown Wire (-) Battery negative
Red Wire to pressure transducer cable
Black Wire to pressure transducer cable
White Wire to pressure transducer cable
Disconnect one wire from solenoid coil terminals, positive or negative side. Splice two wires from
the indicator in series with disconnected wire and coil terminal.
SC5-OEM wiring harness
Green Wire Yellow Wire

Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Note:
Standard SC5 Series electric pallet truck weighing systems have indicators supplied with two
separate black wires for the lift pump motor solenoid interface control.
Lift Accurate Technology
Two black wires or (Green and Yellow) from main harness are connected internally to dry
contact relay, normally closed contact.
The SC5 series indicator with power switch in OFF position allows vehicle to operates normally
with no interruption to the lift motor control.
To operate onboard check weighing scale the indicator power switch must be turned to ON
position.With forks on the ground (no hydraulic pressure in lift hydraulic circuit) the LED Display
will show Mode 8 digit.
When operator lift control valve is activated and hold the lifted load will stop automatically at
height controlled by the software resulting in:
*Pump motor will stop (lifted forks will stop at predetermined forks height for 3-4 seconds)) !
*Load weight will be calculated and shown on LED indicator display !
*Once the load weight is shown on LED Display the lift pump motor solenoid circuit will be in normal
operational mode. !
Electrical Power Short Circuit Protection
All SkidWeigh systems are internally short circuit protected with a resettable fuse. There is no need to install external
inline fuse in the orange wire connected to the ignition switch.
Weighing Function Calibration Procedure
The SkidWeigh SC5 / SC5-OEM load weight calibration is automatic and is done by lifting empty and loaded forks
with known load weight to initiate and program the automatic weighing cycle. MAKE SURE THAT YOU HAVE A
KNOWN LOAD WEIGHT AND KEEP IT NEARBY TO COMPLETE THE SYSTEMS CALIBRATION PROCESS.
For the best results use at least minimum calibration load test weight of 30% to 60% of maximum lifting capacity of
the electric pallet truck. Use floor scale or find a known load weight with a confirmed and trusted weight.
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Important:
If you want the system to show load weight in pounds, use the known load calibration weight in
pounds and enter that value accordingly. The same would apply if you want the system to show
load weight in kilograms. Use the known load weight in kilograms and enter that value into the
system accordingly.
Weighing Function Calibration Procedure
Lower the Empty Forks To The Ground
* There should be no hydraulic pressure in lift circuit
* Turn indicator power switch to On position
* The LED Display will show software version for the moment and in Mode 8 will be shown.
* System weighing function is ready to be calibrated
Empty Forks Calibration
* With lowered empty forks on the ground the Mode 8 will shown.
* Use paper clip and press and hold “M” button for approx. 5 seconds. Mode 8 will change to Mode 0.
*Activate and hold lift control switch until lift pump motor
stops automatically. The LED Display will go blank and within
few seconds will show “0” digit in furthest right digit display
*The algorithm software controls lifted forks travel, will calculate
and store the value of empty forks being lifted.
Automatic zero load weight function is done
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Calibration of Loaded Forks
* Have known calibration load weight near by (Kg or pounds depending on your needs)
* Position the forks into the skid with your known load weight.
* In our example the known load weight is 4000.
* Start entering into the system known load weight (Use paper clip). Start entering with first least
significant digit of your known load weight.
- Use “M” button to shift from right to left beginning with Mode 1 digit to Mode 6 digit.
- Use “Arrow Up” button to input known weight (increments from 0 to 9 with wrap around)
Note: In our example we have value of 4000 (four digits only). Make sure that 5th digit is “0” value.
*Next step is to press ”M” button to advance to Mode 6.
*With loaded forks on the ground and LED Display showing Mode 6,
activate and hold lift control switch until loaded forks are
automatically stopped at pre determined forks height.
*During the measurement cycle LED Display will go blank for moment
* System is calculating the load weight value
* The LED Display will show calculated calibrated weight.
* The calibrated value will be stored in the system.
Automatic load weight calibration function is done
Lower the loaded forks to ground
Mode 8 digit will be shown on LED Display
System is ready to be used
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7

Operator Usage Guide
The starting point to initiate a load weighing procedure are
* Indicator power switch must be turned ON.
* Loaded forks must be lowered to ground.
* LED display must show Mode 8 digit
System ready to be used
*With loaded forks on the ground and LED
Display will show Mode 8.
* Activate and hold lift control switch until
loaded forks are automatically stopped at
pre determined forks height.
*During the measurement cycle LED Display will
go blank for moment
* System is calculating the load weight value
* Within few seconds LED Display will show the
load weight (Our example 583)
* Depending on system set up / application the
value could be in pounds or kg.
Integrated Visual Data Technology Inc. 3439 Whilabout Terrace, Oakville, Ontario, Canada L6L 0A7
System Power Switch
Note 1. When weighing function is not used turn Power Switch OFF.
Note 2: Short power interruption to lift solenoid during measurement can be seen on some controllers as a “fault”.