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Table of Contents
Troubleshooting
Summary of Contents for Gram FR 320
- Page 1 SERIES 320 / 500 / 3200 / 5000 OPERATION MANUAL...
- Page 2 INDEX English Safety information Installation Preparatory before using Storage Unfolding the package Package list Installation of the balance Install the balance with wind shield Install the balance with round weighing pan Install the balance with square weighing pan Connect the Power Adapter Install the External Facilities Warm-up Time Adjust the Level Gauge Purpose...
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Page 3: Table Of Contents
Restoring the factory default setup Backlight setup Limits setup No warning setup Enabling the limit setup Checking the high and low weight limits Additional functions Communication with a computer RS-232 Interface hardware Pin description Routine maintenance and troubleshooting Troubleshooting Clearance Clearing the stainless steel surface Safety check Troubleshooting... - Page 4 ENGLISH SAFETY INFORMATION • To avoid unnecessary demage to the balance, please pay attention to the following tips. • Please do not use this balance in dangerous área. • Only the trained technicians could operate this balance. • Please turn off the power of the balance before connect it or disconnect it with other facilities.
- Page 5 power, put it or them in a safe place and do not use it or them before they are fixed. • This balance could only be connected to our accessories or optional fittings. We are not responsible for any modification the operator makes to our balance, including using the facilities and cable which are not supplied by us.
- Page 6 Package list • The balance • Weighing pan • Pan support • Power adapter • User manual INSTALLATION OF THE BALANCE Put it in a proper place, please avoid the following situations: • Much heat and direct sunlight. • Air currents and vibrations. • Excessive moisture.
- Page 7 Install the balance with round weighing pan • Installation Sequence. • Pan support. • Weighing pan. Install the balance with square weighing pan • Installation Sequence • Pan support • Weighing pan Connect the Power Adapter Only the power adapter offered by us is allowed. • Connect the power adapter to the balance.
- Page 8 Warm-up Time To assure the measure accuracy, the balance must be warmed up for 30 minutes before normal operation. Adjust the Level Gauge Purpose • Adjust the level guage of the balance. The level guage needs to be adjusted once its place is changed.
- Page 9 1. Capacity and readability. 2. Weighing mode signs: Inspect - inspect mode. Count - counting pieces mode. Denst - density mode. Net - Tare weight / Gross weight/ Net weight. 3. Tare weight / Gross weight sign. 4. Weighing units. 5.
- Page 10 KEYS DESCRIPTION Calibration / Adjustment Key Print / Output Key Count / Function confirmation Key Percentage Key Unit conversion key Tare Key Menu Key Power Key CALIBRATION To decide the accuracy of the balance through test the difference between thereading and the actual weight of the object on the weighing pan. Prerequisite of calibration: 1.
- Page 11 3. Press the key, the display will read its full range, such as 3000. 4. Press the key repeatedly, it reads the calibration point within the range (such as 2000, 1000…). 5. Choose one calibration point and place the right weight on the pan. Press key, the display will show CAL---.
- Page 12 Procedure 1. Place the empty container on the weighing pan. 2. Press the key. 3. Choose the amount of the reference samples. Press the key, the balance reads “qTy10”, press the key, choose the number of samples (10, 25, 50, 100). The bigger number, the more accurate for the counting results.The choosed reference number will be saved until a new reference number is set or the power is off.
- Page 13 3. Remove the reference object, the balance reads “0.000” or “0.00”. 4. Place the goal object on the weighing pan. 5. Wait for the OK on the display, read the display, the display indicates percent deviation from the reference. 6. Press the key, the balance returns to normal weighing mode.
- Page 14 Display signs: LOW / HIGH (with warning sound of buzzer or OK). Set up the highest and lowest weight values and start the limits function. Procedure 1. Enter into menu mode pressing the key. key repeatedly until the display reads “INSPCT”. 2.
- Page 15 12. Confirm the accuracy pressing key. 13. Set up the lowest value as follows: (to increase the value). (to decrease the value). value glittering. to confirm. Set up no warning value without loading key repeatedly until to see “NoNres”. 1. Press 2.
- Page 16 3. Press the key. 4. Put the goal object on the weighing pan 5. If the display shows “LOW” it indicates that the goal object weight is lower than the low limit, if it reads “HI” also with buzzer warning sound, it means the the goal object weigh is higher than high limit value, if it´s reads “OK”...
- Page 17 5. Press the key to clear the limits value. USER SETUPS The balance could be set up to meet individual requirement. 1. Press the key to enter setup program. 2. Press the key to choose the parameter to be set up and then press key to confirm.
- Page 19 PRINT SETUPS There are three print types: STABLE Print: print a stable reading when it is attained. INSTANT Print: print immediately after press the key. INTERVAL Print: print at predeterminated time intervals.
- Page 20 Note: The print function is separate from the line feed setup, i.e set the print function first then set the number of line feeds. To set the print type, use the following procedure: key the display will show “PrInt”. 1. Press the key, the display will show “STAbLE”, which indicates 2.
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Page 21: Restoring The Factory Default Setup
“ParITy” and begins parity check. key, the balance reads “nOnE” (no check) for the first. 5. Press the key, it reads the other check types; “Odd” indicates odd 6. Press the check and “EvEn” indicates even check. 7. Choose the proper check type and press the key to confirm, the balance now returns to normal weighing mode. -
Page 22: Backlight Setup
to weighing mode. Factory default setup is finished. BACKLIGHT SETUP key, the display will show “PrInT”. 1. Press the key repeatedly until it reads “bLgHT”, press the 2. Press the to confirm, the display will show “1 nIn” which indicates the backlight will be off in 1 minute. -
Page 23: No Warning Setup
and the key to decrease it. 7. Set the desired value, press the key then the choosed value glitters. To continue the modification, press the key, to confirm the value key, the display will show “SET HI”. press the key, the display reads “SET LO” (to set the low limit 8. -
Page 24: Enabling The Limit Setup
Enabling the limit setup key repeatedly utnil the display reads “EnAbLE”. 1. Press the 2. Press the key to confirm. 3. To disable limit setup, press the key repeatedly until display shows “dISAbL”. 4. Press the key to confirm, the balance returns to weighing mode. Checking the high and low weight limits key, the display reads “PrINT”. -
Page 25: Additional Functions
both return to zero. 3. After any modification of the high and low weight limits, the balance needs to enter limits mode again. 4. The high and low weight limits woulb be saved in the balance. There is no need to set up the limits for the next start-up of the balance. ADDITIONAL FUNCTIONS Bottom hook weighing There is a hole at the bottom of the balance for the optional weighing hook (It... - Page 26 C – : calibration with external standard weight P – : print function : percent function : instant print M – : counting function When a balance is connected to a computer, it is suggested that immediate print # be used. In response to this command the balance will transmit whatever number or message appears on the balance display.
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Page 27: Rs-232 Interface Hardware
RS-232 INTERFACE HARDWARE This balance adopts the transmit and receive lines of standard RS-232. The data format is: 1 start bit. 8 data bits include parity. 1 stop bit. The instruction to connect the balance to external device is as follows: ... -
Page 28: Routine Maintenance And Troubleshooting
ROUTINE MAINTENANCE AND TROUBLESHOOTING Troubleshooting Only the trained professionals are allowed to do repair work. There is a risk for the user if non-professionals do the repair. Clearance • Turn off the balance and unplug the data cables. • Avoid the liquid into the balance. • Any corrosive cleaner (solvent) is forbidden to use. -
Page 29: Safety Check
Note: After remove the weighing pan and the pan support, avoid any liquid or solid pellet into the installation hole. Safety check If the balance could not work normally: • Cut off the power immediatelly, keep and do not use it again. • Keep it in a safe place to make sure it won´t be used for the moment. - Page 30 Refer to calibration section, NOCAL Calibration is unresponsive. check if it is the right calibration weight. Lack of data or wrong data Refer to user manual. UNABLE with which the balance could not perform the function. Unstable the ambient Put the balance in another environment (excessive UNSTABLE place.
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Page 31: Technical Conditions
TECHNICAL CONDITIONS AC power, voltage, AC frequency AC-DC Adapter, input 220V/110V, output 7.5V (+15% to -20%) 48-60Hz Power consumption Maximam = 16W, average = 8W Work temperature range +10ºC to +30ºC (50º F to 86º F) Temperature range allowed +5ºC to +40ºC (41º F to 104º F) The balance could assure the normal +5ºC to +40ºC (41º... -
Page 32: Guarantee
This scale is guaranteed for one year from the delivery date. The guarantee covers any fabrication defect of the material. During this period GRAM PRECISION, SL, covers the manpower and the spare parts necessary for the reparation of the scale. - Page 33 NOTAS...
- Page 34 002/14032017 Gram Precision S.L. Travesía Industrial, 11 · 08907 Hospitalet de Llobregat · Barcelona (Spain) Tel. +34 902 208 000 · +34 93 300 33 32 Fax +34 93 300 66 98 gram.es comercial www.gram-group.com...