Table of Contents
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Table of Contents
Related Manuals for T Scale QHW 15
Summary of Contents for T Scale QHW 15
- Page 1 series Digital Weighing Scales User’s guide UGQHW-E0204...
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Page 3: Table Of Contents
Contents SECTION 1 INTRODUCTION………………………………………………………………1 SECTION 2 SPECIFICATIONS……………………………………………………..……2 SECTION 3 INSTALLATION……………………………………………………..……….3 3.1 General Installation……………………………………………………………………3 3.2 Install of QHW series…………………………………………………………..………3 SECTION 4 KEY DESCRIPTIONS………………………………………………………4 SECTION 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... -
Page 5: Section 1 Introduction
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. -
Page 6: Section 2 Specifications
225 x 300mm / 8.9 x 11.8” 320 x 340 x 125mm / 12.6 x 13.4 x 4.9” General Purpose Scale Weighing, parts counting, % weight, Check weighing, Internal rechargeable battery (~70 hours operation) QHW 15 QHW 30 15kg 30kg 1:30000... -
Page 7: Section 3 Installation
Level the scale by adjusting the four feet. The scale should be adjusted such that the bubble in the spirit level is in the centre of the level and the scale is supported by all four feet, If the scale rocks readjust the feet. -
Page 8: Section 4 Key Descriptions
Func or Used to select the function of the scale. If the scale is weighing it will select parts counting. Of it is not in weighing mode it will return the user to weighing. Secondary function ( C ) , is to act as a clear key when setting values for parameters or other functions. -
Page 9: Section 5 Displays
SECTION 5 DISPLAYS The LCD display will show a value and a unit to the right of the digits. In addition there are labels for TARE, GROSS weight, ZERO battery Low Battery Symbol Stability Symbol GROSS 888888 TARE ZERO Checkweighing Symbols and for Low Parts Counting Units Weighing Units... -
Page 10: Section 6 Operation
Place a container on the platform, a value for its weight will be displayed. Press the TARE key to tare the scale. The weight that was displayed is stored as the tare value and that value is subtracted from the display, leaving zero on the display. -
Page 11: Parts Counting
After pressing the ZERO/ENTER key the scale will return to weighing with the Check-weighing function enabled. When a weight is placed on the scale the arrows will show if the weight is above or below the limits and the beeper will sound as described below. -
Page 12: Accumulated Total
Press PRINT, the display will show "ACC Continue until all weights have been added. To view the totals in memory press the PRINT key when the scale is at zero. The display will show the total number of items "ACC xx" and the total weight before returning to zero. -
Page 13: Automatic Accumulation
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 the value when the weight is removed. -
Page 14: Section 7 Battery Operation
The battery should be charged as soon as the arrow above the symbol is on. The scale will still operate for about 10 hours after which it will automatically switch off to protect the battery. -
Page 15: Section 8 Rs-232 Output
SECTION 8 RS-232 OUTPUT The QHW Series of scales can be ordered with an optional RS-232 output. Specifications: RS-232 output of weighing data ASCII code 4800 Baud 8 data bits No Parity Connector: 9 pin d-subminiature socket Pin 2 Output Pin 3 Input, not used at this time Pin 5 Signal Ground Data Format for normal weighing operations, parts counting or recalling of totals from... -
Page 16: Section 9 Parameters
QHW digital weighing scales user’s guide 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. -
Page 17: Section 10 Calibration
SECTION 10 CALIBRATION 10.1 Linear calibrate To start calibration turn the scale off and then turn it back on. Press the limit and % keys together during the initial counting from 9 to 0 on the display. The display will show "unLoAd". Remove all weight from the pan and then press the ZERO/ENTER key to set the initial zero point. -
Page 18: Section 11 Error Codes
QHW digital weighing scales user’s guide SECTION 11 ERROR CODES During the initial power-on testing or during operation it is possible the scale may show an error message. The meaning of the error messages is described below. If an error message is shown repeat the procedure that caused the message, turning the balance on, calibration or other functions.