Table of Contents
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Operating Instruction
Version 1.1
09/2019
EN
Laboratory / Analytical balances JJ-BC
To ensure the correct application of the scales of this series,
please read these instructions carefully and properly
preserved for future reference.
N o v e s i a s t r . 3 1
4 1 5 6 4 K a a r s t
G e r m a n y
T e l . : + 4 9 / ( 0 ) 2 1 3 1 / 1 3 3 5 6 0 5
F a x . : + 4 9 / ( 0 ) 2 1 3 1 / 1 3 3 5 6 0 7
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Table of Contents
Related Manuals for G&G JJ-BC Series
Summary of Contents for G&G JJ-BC Series
- Page 1 Operating Instruction Version 1.1 09/2019 Laboratory / Analytical balances JJ-BC To ensure the correct application of the scales of this series, please read these instructions carefully and properly preserved for future reference. N o v e s i a s t r . 3 1 4 1 5 6 4 K a a r s t G e r m a n y T e l .
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Page 2: Table Of Contents
Manual Version 1.1 09/2019 Contents Technical data ..................Fehler! Textmarke nicht definiert. JJ223BF-JJ1523BF (3 Digits) ............Fehler! Textmarke nicht definiert. JJ124BF-JJ324BF (4 Digits) ............. Fehler! Textmarke nicht definiert. Overview ..............................4 Proper Use ............................6 Improper Use............................6 Control of inspection, measuring and test equipment ............... 7 Warranty .............................. - Page 3 10.1 Density determination of solids ......................13 10.2 Determining density of liquids ......................13 10.3 Influencing magnitudes and error sources ..................13 Displayinformation / Error messages ....................14 Interface RS 232C ..........................14 12.1 Technical Data ........................... 14 12.2 Description of the data transfer ......................14 12.3 Remote control instructions ......................
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Page 4: Technical Data
1 Technical data 1.1 JJ223BF-JJ1523BF (3 Digits) Modell JJ223BC JJ323BC JJ523BC JJ623BC JJ1023BC JJ1523BC Weighing range (max) 220g 320g 520g 620g 1020g 1520g Readability ( =d) Tare range 0-220g 0-320g 0-520g 0-620g 0-1020g 0-1520g Linearity ± 3mg ± 3mg ± 3mg ±... - Page 5 1.2 JJ124BC-JJ324BC (4 Digits) + JJ2202BC-JJ3202BC (2 Digits) Modell JJ124BC JJ224BC JJ323BC JJ2202BC JJ3202BC Weighing range (max) 120g 220g 320g 2200g 3200g 0,1mg 10mg Readability Minimum weight ** 2 mg 200 mg 200 mg Tare range 0-120g 0-220g 0-320g 0-2200g 0-3200g Linearity ±...
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Page 6: Overview
2 Overview The laboratory analytical balance JJ-BC is designed to meet the needs of laboratories, industry and commercial users and it offers very wide range of functions: weighing, parts counting or density determination. It is equipped with a very precise sensor, using the electromagnetic force compensation sensor. This measurement technology is much more precise than the classic stain gauge load cell. -
Page 7: Control Of Inspection, Measuring And Test Equipment
2.3 Control of inspection, measuring and test equipment As part of quality assurance the measuring-related properties of the balance and the available adjusting weight must be checked regularly. The responsible user must define a suitable interval as well as the nature and scope of this test. -
Page 8: Transportation And Storage
By maintenance please notice the information in Chapter “Maintenance and Servicing”. If the balance seems not to operate properly, unplug it from the mains and do not use until checked by authorized service. All repairs and necessary regulations can be made by authorized personnel only. ... -
Page 9: Unpacking / Installation
6.2 Unpacking / Installation Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation. 1. Take the balance and supplied accessories (a feeder, pan elements) out of the box. 2. Place the balance on a stable ground not affected by mechanical vibrations and airflows. 3. -
Page 10: Calibration
For an external calibration, you need a reference weight that has a smaller tolerance than the scales readout. During the calibration the scale will “learn” how “heavy” a specific weight is at the local environment conditions and adjust according to this. Due to this, it is important that the reference weight has a smaller tolerance than the scale can determine the weight. -
Page 11: Basic Operation
9 Basic Operation After new purchase of the balance or after a long storage, you have to calibrate the balance before the first commissioning. Level the balance with the adjustable feet horizontal until the air bubble in the level is in the center of the Level Indicator. -
Page 12: Pieces Counting Function [Counting Mode]
9.6 Pieces counting function [counting mode] Before the balance can count parts, it must know the average part weight (i.e. reference). Proceed by putting on a certain number of the parts to be counted. The balance determines the total weight and divides it by the number of parts, the so-called reference quantity (1, 10, 20, 50, or 100). -
Page 13: Density Determination Of Solids
Example: A piece of metal in the air weight 100 g and weighs 80 g in water. Therefore, the object has 20 g (= 20 cm³) water displaced. Its volume is therefore 20 cm³. Now it is easy to determine the density of the metal piece. 10.1 Density determination of solids For the density determination of solid material, the solid is weighed first in air [ A ] and then in the measuring liquid [ B ]. -
Page 14: Displayinformation / Error Messages
11 Displayinformation / Error messages Date over display scope F----1 A/D-switch disorder F----2 Function key disorder F----3 Sensor signal disorder / Load Cell defect F----5 Lower zero position of sensor signal F----L Weighing capacity is exceeded F----H Calibration error, instability or not at zero point during calibrating C----F Calibration error, items on the pan or at higher zero point during calibrating C----H... -
Page 15: Remote Control Instructions
12.3 Remote control instructions Via the RS232 data interface, the computer can control the balance with subsequent commands. If the transmit / device setting is 27 (27=1B , default setting), the remote control commands are sent to the balance by ASCII code: 1BH+70H (ACSII Code p): sending data (Print) 1BH+71H (ACSII Code q): calibration function is active... -
Page 16: Configuration & Explain Of The Function Setting
13 Configuration & Explain of the function setting The settings of the balance can be changed in the setting menu. This way, the balance can be adjusted to individual weighing requirements. By the factory the user menu has been set in a way that normally no more changes must be made, only at special conditions of use. -
Page 17: Maintenance And Servicing
g) Save settings After all points have been configured, press [CAL] button returns the balance automatically into weighing mode. h) Restore the factory settings In the off state press the [TARE] button and press the [ ] button turn on the balance, keep the [TARE] button pressed until the balance returns automatically into weighing mode. -
Page 18: Instant Help
15 Instant help Failure Possible Cause The balance is not switched on. The mains supply connection has been interrupted (mains cable not plugged in/faulty). The display does not light up. Power supply is interrupted. (Rechargeable) batteries are inserted incorrectly or empty. No (rechargeable) batteries are inserted.