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QHW digital weighing scales user’s guide

 

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SECTION 9 PARAMETERS                   

 
The scale has 6 parameters that can be set by the user.    These allow the user to set 
the scale to: 

• 

Display the weight in other increments of weight to minimize the affects of 

vibration, wind or other environmental conditions. 

• 

Control the back light on the display.    It may be necessary to turn the backlight 

off to maximize battery life. 

• 

Set the Accumulation to Automatic, manual or set the RS-232 interface to 

continuously print the weight. 

• 

Set whether accumulation when print 

• 

Set auto zero range 

• 

Select another weighing unit than the standard. 

 
To set parameters press the 

FUNC

 and 

PRINT

 keys at the same time.     

 
The display will show "Inc    xx"    The first value shown is the default scale increment 
value.    To select a different increment value press the 

TARE

/

Ï

 key to change the 

value then press the 

ZERO/ENTER

 key. 

For example on a 15kg scale the standard increment is 0.5g, the value can be 
changed to 1.0g or 2.0g. 

 
The next parameter is control of the backlight.    The standard is to have the backlight 
operate automatically, turning 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

/

Ï

 key to change the value then press the 

ZERO/ENTER

 key. 

 
Automatic accumulation is next.  With "Au On" the memory will accumulate the 
weight automatically,  "Au  Off"   will enable the manual accumulation and with "P 
Cont" set  the RS-232 interface will send the weight continuously and the 
accumulation function is disabled. 
Press the 

TARE

/

Ï

 key to change the value then press the 

ZERO/ENTER

 key. 

 
Whether accumulation when print is next, With “ACC ON” when you print it will 
accumulation, “ACC OF” will only print without accumulation. 
Press the 

TARE

/

Ï

 key to change the setting then press the 

ZERO/ENTER

 key. 

 
Auto zero range is next, you can select 0.5d, 1d, 2d and 4d. 
Press the 

TARE

/

Ï

 key to change the setting then press the 

ZERO/ENTER

 key. 

 
The displayed unit of weight is set next.  The scales are normally calibrated and 
display in kilograms, however they will show the weight in grams, ounces or pounds 
and selected by this function.     
Press the 

TARE

/

Ï

 key to change the value then press the 

ZERO/ENTER

 key. 

 

When the scales are set to display in other units of weight the accumulation function 
is still keeping the weight in kilograms. 
 

 

Summary of Contents for QHW 15

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

Page 2: ......

Page 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...

Page 4: ......

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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