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SECTION 1 INTRODUCTION                  

 
The QHW series of scales provides an accurate, fast and versatile series of general 
purpose weighing scales with counting, % weighing and check-weighing functions.   
 
There are 4 models in each series, with capacities up to 30 kg.   
 
They all have stainless steel weighing platforms on an ABS base assembly. 
 
All the keypads are sealed, color coded membrane switches and the displays are 
large easy to read liquid crystal type displays (LCD). The LCD’s are supplied with a 
backlight. 
   
All units include automatic zero tracking, audible alarm for pre-set weights, automatic 
tare, pre-set tare and an accumulation facility that allows the count to be stored and 
recalled as an accumulated total. 
 

 

 

 
 
 
 
 
 
 
 
 

Содержание QHW 15

Страница 1: ...UGQHW E0204 QHW series Digital Weighing Scales User s guide...

Страница 2: ......

Страница 3: ...5 DISPLAYS 5 SECTION 6 OPERATION 6 6 1 Zeroing the display 6 6 2 Taring 6 6 3 Weighing a sample 6 6 4 Percent weighing 6 6 5 Parts counting 7 6 6 Check weighing 7 6 7 Accumulated total 8 6 8 Manual a...

Страница 4: ......

Страница 5: ...They all have stainless steel weighing platforms on an ABS base assembly All the keypads are sealed color coded membrane switches and the displays are large easy to read liquid crystal type displays L...

Страница 6: ...ns Interface RS 232 Output Optional Stabilisation Time 2 Seconds typical Operating Temperature 0 C 40 C 32 F 104 F Power supply external 115 230 Vac 50 60Hz 10 watts Calibration Automatic External Dis...

Страница 7: ...ater Avoid air movement such as from fans or opening doors Do not place near open windows Keep the scales clean Do not stack material on the scales when they are not in use 3 2 INSTALLATION of QHW SER...

Страница 8: ...the right when setting values for parameters or other functions Enters the percent weighing function Allows the weight unit weight and count to be seen when parts counting Secondary function is to mo...

Страница 9: ...and a unit to the right of the digits In addition there are labels for TARE GROSS weight ZERO and for Low battery 888888 OK HI LO GROSS TARE ZERO g pcs oz tkglb Checkweighing Symbols Stability Symbol...

Страница 10: ...time if another type of product was to be added to the first one Again only the weight that is added after taring will be displayed When the container is removed a negative value will be shown If the...

Страница 11: ...to display unit weight g pcs Total weight kg or the count pcs Press the FUNC key to return to normal weighing 6 6 CHECK WEIGHING Check weighing is a procedure to cause an alarm to sound when the weigh...

Страница 12: ...he zero values 6 7 ACCUMULATED TOTAL The scale can be set to accumulate automatically when a weight is added to he scale or manually by pressing the PRINT key See the PARAMETERS Section for details of...

Страница 13: ...s to zero Adding a second weight will repeat the process While the weight is on the scale it is permissible to press the PRINT key to store the value immediately In this case the scale will not store...

Страница 14: ...y switch off to protect the battery To charge the battery 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 und...

Страница 15: ...ormal weighing operations parts counting or recalling of totals from memory will all be different Examples follow Normal Output When percent weighing the output is the weight shown in percent only GS...

Страница 16: ...g off when the scale is not used The backlight can be set to be EL On EL Au Automatic or EL Off The maximum battery life is achieved with the backlight turned off Press the TARE key to change the valu...

Страница 17: ...l calibrate weight completed press ZERO ENTER to complete the calibration The scale will begin counting back to zero after the last weight has been selected Calibration weights QHW SERIES Model QHW 3...

Страница 18: ...ON POSSIBLE CAUSES Err 4 Initial Zero is greater than allowed 4 of maximum capacity when power is turned on or when the ZERO ENTER key is pressed Weight on the pan when turning the scale on Excessive...

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