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M503 Series Wheelchair Scales Technical Manual

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10.5.3 PCB Input Voltage

Check the PCB input power connecter voltage



Voltage must be minimum 9VDC in to the pin AD+

10.5.4 Check Battery Voltage and Charging Voltage

1. Check the Battery Voltage,



Voltage must be minimum 6VDC. If below the 6VDC connect the adaptor

for charging



The battery voltage below the 5.5VDC, replace the battery and install new

6V/3.4Ah battery.

2. Check the Battery Charging Voltage;



Remove the battery connection terminals (Red and Black) from the battery.



Connect the power and turn on the scale



Voltage into the terminal minimum 6.5VDC

10.6 Trouble Shooting

Problems

Possible cause

Common Solutions

Display is blank.
No self test

Mains power is turned
off. Power supply faulty
or not plugged. Internal
battery is not charged.
On/Off switch problem

Check power is getting inside the
scale and on/off switch is working.
Verify the voltages, which is on the
power labels.

Blank display
after self test

Pan not installed.
Unstable weight, load
cell damaged

Check the pans are installed
correctly. Try to turning on again.

OL or -------

Maximum capacity
exceeded. Load cell or
mechanics damaged.
Power supply faulty

Check the platform is installed
correctly. Try to turn on the scale
again. Do the calibration again

------- or NULL
displayed

Weight is on the
platform is below
permissible limit. Pan
not installed correctly.
Power supply faulty.
Load cell or
mechanism faulty

Check the platform is installed
correctly. Try to turn on the scale
again.
Do the calibration again

Содержание M503 Series

Страница 1: ...I Weighing Indicator M503 Wheelchair Scale ...

Страница 2: ...TALLATION 6 5 DESCRIPTION 8 6 OPERATION 10 1 Power ON OFF 10 2 Zero 10 3 Tare 10 4 Hold function 10 5 BMI function 11 7 PARAMETER 12 8 CALIBRATION 14 9 BATTERY OPERATION 15 10 MAINTENANCE 16 10 1 General 16 10 2 Error codes 17 10 3 Determine the Problem 17 10 4 Check the Load Cell 17 10 5 Check PCB Voltages 18 10 6 Trouble Shooting 19 11 DISPOSAL 20 12 WARRANTY 21 ...

Страница 3: ...uction of the equipment Follow the instructions in the instructions for use Keep the operating instructions and the declaration of conformity in a safe place Never leave the old man seat on the scale unsupervised Ensure that the scale is standing firmly on a smooth level surface Do not drop the scale or subject it to violent shocks When using the scale with a mains unit ensure that the supply cabl...

Страница 4: ...nd versatile series of general purpose balances with weighing functions and accumulation All models with ECTAC Class III and conform 93 42 EC directive Materials used according to REACH directive Safe and comfortable wheelchair weighing scales Users can choose to put the meter location by themselves Ramp foldable when folded out with low distance to the floor Optional RS 232 interface can connect ...

Страница 5: ...put Optional Stabilisation Time 2 Seconds typical Operating Temperature 0 C 40 C 32 F 104 F Power supply external 12V 500mA AC power adapter or 2000mAh Ni MH batteries optional size AA Calibration Automatic External Calibration as per Directive 90 384 EEC Class III medical approval Medical product as per Directive 93 42 EEC Class I ADC Σ Δ Display 25 mm high 6 digits LCD with auto backlight and lo...

Страница 6: ...0 35 40 50 Sensitivity 2 0 0 2 mv v Excitation Voltage 5 12V Material Aluminum Cable 0 3 3m Φ 4mm Input Resistance 409Ω 6Ω 1065Ω 15Ω Out put Resistance 350Ω 3Ω 1000Ω 10Ω Temperature Range 35 C 65 C Safe overload 150 F S Ultimate overload 300 F S Error 0 0233 F S Creep 20min 0 020 F S Zero Balance 0 5 mV V Max Platform Size 250x350mm ...

Страница 7: ...he level when you change the location Charging Battery To charge the battery insert the adaptor pin to jack jack is locating rear side of the scale Adaptor simply plug into the mains power The scale no needs to be turned on The battery should be charged for 12 hours for full capacity In the display there is an indicator show the status of battery charging When the scale is plugged into the mains p...

Страница 8: ...uipment must be installed near an easily accessible socket outlet with a protective ground earth contact Display will be show the version number and will be starting self checking After self checking display will be come to normal weighing mode Warm up time of 15 minutes stabilizes the measured values after switching on Calibrate with exact calibration weights minimum 1 3 of the scale capacity wan...

Страница 9: ... Wheelchair Scales Technical Manual 8 5 DESCRIPTION Key Board Turns the scale power On Off Set to hold mode Set to BMI mode Enter into the menu Sets display to Zero Subtracts weight of container Change unit kg lb ...

Страница 10: ...splay stability ZERO Indicator for Zero display TARE Indicator for Tare display NET Indicator for Net weight GROSS Indicator for Gross weight Cm inch Indicator for measuring units Lb kg Indicator for weight units Indicator for Charging status of battery Voltage has dropped Low Voltage Fully Charged ...

Страница 11: ... to zero any time by pressing key and therefore ensure that the weighing starts at zero 6 3 Tare The weight of any container can be tared by pressing key so that with subsequent weighing the net weight of the object being weighed is always displayed Load weight on the pan Press key Zero is displayed and tare is subtracted Remove weight from the platform Tared weight is displayed It can set only on...

Страница 12: ...d on the platform display will show the BMI graphics bar and BMI value Press key it will turn back to weighing mode 6 6 Hold function Press before load at the pan so HOLD is active now Hold and appeared at the display After put load at the pan no indication until a stable non zero weights is detected During this period is indicated no indication of unstable value You will hear an acoustic beep whe...

Страница 13: ...ibration switch which is locating below the scale When display showed Pi n press and keys to enter the function Escape from the Menu Press key it can escape from the menu to weighing mode Parameter Block Menu Sub Menu Description F1 off Off 0 3 5 15 30 To set the auto close the scale time F2 com Select first RS 232 or USB P prt By pressing Print key weighing value will be added to the memory and p...

Страница 14: ... the backlight always on Bl off Set the backlight always off Bl au Set the backlight automatic on F4 str Str on Multi tare operation turn on Str off Multi tare operation turn off tch pin Enter the password P 1 spd Set the display speed 7 5 15 30 60 P 2 Cal Normal Calibration P 3 pro tri To modify the calibration count To show the scale internal count reset Reset the scale setgra Set the gravity va...

Страница 15: ...lay show cal press key into calibration display will show UNLOAD When scale get stable Press key display will show the calibration value you can change the value by pressing and key then press key to comfirm display will show load Place the calibration weight on the platform press key after stable display will show pass Calibration will be finished scale will start self test After three times scal...

Страница 16: ...simply plug into the mains power The scale does not need to be turned on The battery should be charged for 12 hours for full capacity Just under the quantity display is an LED to indicate the status of battery charging When the scale is plugged into the mains power the internal battery will be charged If the LED is green the battery has a full charge If it is Red the battery is nearly discharged a...

Страница 17: ...he power Failure to observe these precautions bodily harm or damage to or destruction of the equipment 10 1 General If the scale does not operate properly find out the problem as possible Determine whether the problem is constant or alternate Be aware that problems can be caused by mechanical or electrical influences Check the following Water Corrosive materials Vibrations or temperature or wind P...

Страница 18: ...atform not installed Load cell problem PCB problem Err 19 Exceed Auto Zero range When switch on the scale Goods on the platform Improper calibration Load cell problem PCB problem 10 3 Determine the Problem Determine whether the problem is in the PCB or the Load Cell Remove power from the system and disconnect the load cell connection from the PCB Connect the PCB to a load cell simulator Reapply po...

Страница 19: ...Load Cell Connections Signal Green Supply Red Signal Black Supply White Shield Measuring Points Resistance Red Exc to White Exc 420 20Ω Green Sig to Black Sig 350Ω 5Ω 10 5 Check PCB Voltages If the problem is in the PCB use a multimeter to check the following voltages 10 5 1 AC Power Check the AC power socket out put voltage Voltage must be a 20 and 10 of the normal AC voltage 10 5 2 Adaptor Volta...

Страница 20: ...ommon Solutions Display is blank No self test Mains power is turned off Power supply faulty or not plugged Internal battery is not charged On Off switch problem Check power is getting inside the scale and on off switch is working Verify the voltages which is on the power labels Blank display after self test Pan not installed Unstable weight load cell damaged Check the pans are installed correctly ...

Страница 21: ...parameter settings Check the load cell and connecters Can not use full capacity Over load protection stoppers or transport locks are not removed Parameters are set incorrectly AD problem Load cell or mechanism damaged Check the stoppers and locks under the platform Check the weighing unit and parameter settings Check the load cell Platform Corner Weight different Over load protection stoppers or t...

Страница 22: ...onic waste Follow the national regulations which apply in your case For further information contact our service department at service taiwanscale com Batteries Do not throw used batteries away in domestic waste Dispose of batteries at collection points in the vicinity When buying new batteries select those low in harmful substances and containing no mercury Hg cadmium Cd or lead Pb ...

Страница 23: ...in both directions will be borne by the customer should the equipment be located anywhere other than the customer s premises In the event of transport damage claims under warranty can be honoured only if the complete original packaging was used for any transport and the scale secured and attached in that packaging just as it was when originally packed All the packaging should therefore be retained...

Страница 24: ...instruments The TSCALE products Medical Scale Counting Scale Tabletop Scale Retail Scale Precision Scale Platform Scale Weighing Indicator Crane Scale Floor and Pallet Scale Accessory Software TSCALE has its manufacturing unit in Kunshan China ISO 9001 certified company ODM partner more than 20 products have OIML certifications from Holland s NMI and Denmark s Delta TScale Electronics Mfg Kunshan ...

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