INSTRUCTION MANUAL EP-KB Series PRECISION INDUSTRIAL BALANCES M0DEIS:WXB n3-20KB EP-40KB EP-blKB EP-60KB A&D MERCURY PTY. LTD. 32 Dew St, Thebarton, S.A.
Introduction ........................................................................................... .. Speclf~cations....................................................................................... Installation .............................................................................................. Page 3 Page 4 Page 5 Power Requirements ....................................................................... Page 6 Changing the Fuse ........................................................
Warranty rights vary from country to -try but it is the general intention of A&D Co., Ltd., to offer customers a one year warranty on this product from the day it is purchased. In some countries consumer protection legislation states that your dealer is responsible for offering a warranty and under these circumstances please refer to your local dealer. In the U.S.A. the product (if defective) should be returned, freight prepaid by the customer, to A&D Engineering Inc.
Please read this manual carefully before you use your new balance! Thank you for your A&D balance purchase! The EP series of high precision industrial balances a r e the e n d p r o d u c t of years of research, design, development a n d in-field testing. Every component has been carefully chosen to p e r m i t o p t i m u m performance from the entire u n i t a n d e a c h balance undergoes several levels of quality control before leaving the factory.
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Please see the BEST C O N D I T I O N S FOR W E I G H I N G section before selecting the installation site for the Balance. Please unpack the balance carefully making sure that no parts are mislaid during the process, including this manual! LED on means power connected PARTS LIST: 1. Balance 2. Weighing Pan & Pan Support 3. Power Cable 4. 0.3A or 0.2A Fuse (Anti-Surge) 5. Unit Stickers "PC","%","lb","oz"."oztw 0 Place the Weighing Pan, with the Pan Support, gently onto the balance.
This balance will accept AC input voltages of; 100; 115,220 or 240V AC. 0 . The AC power requirements of your balance are unchangeable, depend upon the original shipping destination of the balance and are clearly marked on the case. 0 Power frequency can be either 50 or 60Hz. 0.3A Fuse=100/115V & 0.2A=220/240V. o Please note that the balance ONJOFF key-switch only switches the display on and off, not the power supply for the balance (note that the power LED stays on).
Calibration of the balance is required when it is initially installed, when changing the installation site, and additionally every 90 days or so. It is necessary because the weight of a mass in one location is not necessarily the same in another location. Also, with time and use, mechanical deviations can occur. "Weight" = Mass x Acceleration due to the field of gravity of the Earth. The internationally adopted value for gravitational acceleration is 9.80665m/s2 (32.
Step 1. With a stable display reading and nothing on the weighing pan, remove the plastic calibration plug on the right side of the display pod. Slide the calibration switch ON (downwards). Do not switch on the calibration switch when the display is off, or "Err C (for Error in Calibration method) will bc! displayed. DISPLAY The display will show "CAL 0". Step 2. Press the TARE key, the display will blank for a few seconds.
When the balance is shipped all the parameter settings are set to status 0 for groups "A"and "b" (see table below) and they may not need to be changed. Group "A" settings cover the motion detection band width, The display update rate, the integration time and running the display segments continuously for even illumination. Group "b" settings cover the printing mode, data output baud rate, parity setting and data format concerning the built-in RS-232C interface.
. Motion Band Width: In a perfect world an o b j j t resting on a weighing pan would be completely immobile. Regrettably this is not a perfect world so we must tell the balance how much motion should nevertheless be tonsidered as numotion. Tltis setting is the Motion Band Width and if the movement of the object on the weighing pan is small enough to be inside this band then the balance will regard the motion as no-motion and switch on the "STABLE* Symbol.
0 After setting the parameters of group " A and "b" (if they need to be changed) you should proceed to set the status of the two extra weighing modes in addition to the basic gram weighig mode. 0 At any one time the balance MODE key can be used to switch the display from weighing in grams to two of the following six.extra weighing modes: 0 ."PC.
DISPLAYThe display will show "--" with the top LED lit. This means that you may now define the weighing unit or function for the top LED. Step 5. Repeat Steps 3 & 4, this time for the top LED. Step 6 . Choose the mode you wish to have at the top LED position and press the SAMPLE % key to register your choice in the memory of the balance. Stick the correct unit sticker next to the top LED. Step 7. Next press the TARE key and all the display segments will switch on for a short period of time.
PC OR COUNTING. The counting weighing mode permits you to use the industrial balance as a sophisticated pieadparts counter in stock control departments. The balance can be used to count leaflets, and electronic or mechanical components. The balance does this is by dividing a sample of 10 pieces by 10 to arrive at the average unit weight of each piece.
I FUNmION: KEY: 0 PRINT I I This key turns the balance display ON and OFF. The LED annunaator in the upper right corner indicates the balance is plugged in. Can be used to transmit data from the balance through the standard RS-232C and Current Loop interface. The numerical keys can be used to enter a keyboard tare, to enter the gram weight of a 100% sample, to enter an average unit weight in counting mode and to enter the exact weight value of a calibration mass greater than 5,000 grams.
weight in that segment After ACAI counting UNIT WEIGHT will display the average unit weight of pieces in the sample which can then be placed in memory by opening a memory location (MI to M5) and then pressing SAMPLE/%. The UNIT WEIGHT key will also allow you to input a unit weight value through the numerical keys manually. 1 Clear key for data entry via the keyboard.
These industrial balances me precision insfruntents and like all predshn instrumenfs, should be treated with a rensonable mnount of care. Please take the fime to fully read all of the releuant sections before operating your bafance. a) Press the ONfOFF key to switch on the display. b) Weigh in grams or select another weight mode (if available) via the MODE key. C) Zero the display via the ZERO key and , the center of zero LED will switch on.
a) Press the MODE key to select the "%" percentage function. b) Press the SAMPLE % key. C) "100 0" should be displayed but if "100 -" is displayed press ZERO. d) Place the 100% sample on the weighing pan. e) The display will show "100 -". Press the SAMPLE % key. fl The display will blank and then show "100.00", you can remove the sample. g) The display will zero and subsequent weights will show a percentage deviation from the weight of the initial 100.00% sample.
To set a unit weight into memory, you must start with a unit weight displayed by either the ACAI procedure above, or by keying in the nominal unit weighf value via the keyboard. I f you have nof done the ACAl procedure above, please enter in a nominal unit weight via the keyboard at this time. Step 1. Press the desired memory key number (M1+M5) that you wish to store the unit weight into. DISPLAY The display will flash, showing the old unit weight previously stored in memory.
Connect the optional compact printer AD-8117 to the balance via the printer's interface cable. Read the following table in conjunction with the Parameter Setting information on pages 9 and 10. AD-8117 Print Method MODE Key Description Balance Print Key I o -nnnnn The printer will only print after the data has become stable. Balance Print Key 0 I - n I nnn The prinier will only print when the data is stable. I Auto-Print (1 per event) o -.
The buiIt-in interface is a serial RS-232C 1/0 (+CL) card for connecting EP balances to an AD-8117 Compact Printer or to an external device such as a computer. EIA-RS-232C .
(Parameter Setting location b - OXCOO) Two transmission modes are available for computers, one from both RS-232C and Current Loop, "Stream" Mode, and one, "Command " Mode, is only available from RS-232C. In Stream Mode data will be transmitted continuously and in Command Mode data will only be sent when a "READ command is received from an external device. The other three transmission modes are primarily designed for sending data to the AD-8117 compact printer.
Header Weght Data Unit Terminator Input Forrrrat @I01 t t Header .
An RS-232C connector is not provided with the balance because the Compact Printer AD-8117 is provided with a cable and connector. A 7 pin DIN Current Loop connector is provided so that you'may connect a computer. Please note that this is a passive current loop which requires an external 20mA power source. If you use AD-8117 (RS-232C) and a computer (CL) together then place the balance in stream mode and the printer in Mode 2; the balance PRINT key will not work so use the printer key.
If you connect a computer to the balance via the RS-232~interface rather than the Current Loop, then the computer can control data output when the balance is in Command Mode. The programs below are written in Miaosoft BASIC for the NEC PC-9801, the Epson HC-20, and the IBM PC-XT. They show how to send a READ command to the balance but please note that your computer may have a different BASIC dialect. The baud rate should be set to 2400 in Command Mode (b - 03000).
PROGRAMMING THE BALANCE WITH THE WEIGHT VALUE OF YOUR MASS It is important to understand that an electronic balance is only as accurate as the accuracy of the mass used to calibrate it. The EP Industrial Balances are exceptionally accurate instruments but this means that they should receive extremely accurate calibration. Ideally calibration should be carried out at close to maximum capacity because if it is not, span errors can appear.
Step I. With a stable display reading and nothing on the weighing pan, remove the plastic calibration plug on the right side of the display pod. Slide the calibration switch ON (downwards). Do not switch on the calibration switch when the display is off, or "Err C" (for Error in Calibration method) will be displayed. DISPLAYThe display will show "CAL 0". Step 2. Press the PRINT key. The display will show the ideal weight of the calibration mass which you should use.
