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QHW digital weighing scales user’s guide

 

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SECTION 2 SPECIFICATIONS                 

 

QHW SERIES 

Model # 

QHW 3 

QHW 6 

QHW 15 

QHW 30 

Maximum Capacity 

3kg 

6kg 

15kg 

30kg 

Readability 0.1g 

0.2 

0.5 

1g 

Resolution 

1:30000 1:30000 1:30000 1:30000 

Tare Range 

-3kg 

-6kg 

-10kg 

-30kg 

Minimum Capacity 

2g 

4g 

10g 

20g 

Repeatability (Std Dev) 

0.1 

0.2 

0.5g 

1g 

Linearity ± 

0.2g 

0.4 

1g 

2g 

Units of Measure 

kg, g, Lb., oz. 

 
Common Specifications 

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 

Display 

6 digits LCD digital display 

Draft shield 

N/A 

Balance Housing 

ABS Plastic, Stainless Steel platform 

Pan Size 

225 x 300mm / 8.9 x 11.8” 

Overall Dimensions (wxdxh) 

320 x 340 x 125mm / 12.6 x 13.4 x 4.9” 

Gross Weight 

3.8kg/8.4lb 

Applications 

General Purpose Scale 

Functions 

Weighing, parts counting, % weight, Check weighing, 

Other Features and Specs 

Internal rechargeable battery (~70 hours operation) 

 
 

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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