Acculab SV-30, SV-50, SV-100 - Bench Scale Manual

PLEASE READ COMPLETE INSTRUCTIONS BEFORE USE

OVERVIEW

BEFORE YOU BEGIN

• Avoid lengthy exposure to extreme heat or cold. Your balance works best when operated within the temperature limits listed in the specifications. Always allow the unit to acclimate to a stable temperature before calibration.
• Allow at least 30 minutes of warm up time before starting calibration to give internal components sufficient time to stabilize.
• Keep your operating environment as clean as possible.
  Electrostatic fields, gravitational fields, dust, dirt, moisture, vibration, air currents, and proximity to other electronic equipment can all have an adverse effect on the reliability and accuracy of your unit.
• Handle with care. Carefully set weighing pan onto top of unit until level. Gently apply all items to be weighed onto the center of the weighing pan. Although designed to be quite durable, avoid rough treatment as this may permanently damage the internal sensor.

OPERATION

AC Adapter Operation

1. The unit will operate on 115V/AC or 230V/AC, depending on the type of AC Adapter provided.
   
   Use only a 12V Adapter with a negative tip, as provided, to supply AC power. Use of another type of adapter may permanently damage the unit and will void the warranty.
2. Insert the female plug into the receptacle at the rear of the unit, and then into the desired electrical outlet. Check your use of any extension cord which may affect power output. Unplug AC adapter when not in use for extended periods.

Battery Operation

1. One nine (9) Volt ALKALINE or 9V NICAD RECHARGEABLE BATTERY is required. Your balance contains a 9V recharging circuit, which will continuously charge an approved 9V rechargeable battery whenever the AC adapter is used.
2. To install battery, open battery cover on bottom of balance and connect battery to snap. Place battery into its compartment and replace the cover. Always handle battery lead wires with care. DO NOT USE EXCESSIVE FORCE!
3. Remove battery when balance is not used for extended periods.

CALIBRATION

**PLEASE NOTE: Calibration weights are NOT supplied with Models SV-30, SV-50, or SV-100. Calibration weights may be purchased separately from your ACCULAB dealer.

All Scales are factory tested and calibrated prior to shipping. However, an external calibration is recommended upon the initial scale setup, after the scale has been moved, or after the scale has been subjected to an extreme change in temperature. Perform the described calibration procedure AFTER the scale has been allowed to warm up, approximately 30 min. In addition to the initial setup calibration, the factory recommends to recalibrate the scale periodically for optimum performance. Use Class F weights or other equivalent class weights.

Calibration Procedure:

1. Turn balance on and allow unit to warm up and stabilize for thirty minutes. Unit will default to kilogram (kg) mode and calibration will be performed in metric mode.
2. Press and hold the "CAL" key until calibration weight value appears and flashes on the display.
3. With the calibration weight value still flashing, press the "OFF"key, and the display will read "CAL 0". After pausing for at least two seconds, place the correct calibration weight gently on the center of the weighing pan.
4. The display will momentarily show "CAL F" and then return to active weighing. The calibration is complete when the display correctly shows the calibration weight, and the display has stabilized
5. Remove calibration weight and press the tare key to reset the zero point.

NOTE: If "CAL E" appears instead of "CAL F", this indicates a calibration error has occurred and the calibration process should be repeated. "CAL E" can occur if the calibration steps are not followed in the correct order or if an incorrect calibration weight was applied.

FEATURES

• Power Up Segment Test: When first turning on the unit, all segments of the LCD display will appear as shown below.
  
  This display will remain for approximately three seconds and then reset to zero.
• Stable Reading Indication: A right-facing arrow appears on the right side of the display indicating the weighing mode in which the unit is operating. This arrow will disappear during weighing while the unit stabilizes, and then reappear when a stable value is reached.
• Key Tone: Pressing any of the four keypads on the front panel will emit a tone indicating registry of the function.
• Overload: When an applied load exceeds the unit's capacity, "E" will appear on the display accompanied by intermittent beeps. Remove excessive load immediately. The unit should return to normal operation.
• Negative Value: Any tared value or a value left in memory will be displayed as a negative number once all weight is removed from the unit. Press tare to return to normal operation.
• Tare: The tare feature is designed to allow the user to reset the balance to zero at any time. Tare can also be used to eliminate the value of a pan liner, scoop, beaker, etc. from a sample or procedure, when the weighed material needs to be held in a container and only the net weight of the material is desired. Place the container only (without material) on the weighing pan, wait for a stable reading and then press tare. The unit returns to zero and the weight value of the container is permanently removed from the remainder of the procedure.
  NOTE: When all weight is removed from the weighing pan, the tared value of the container will be displayed as a negative number. Press the tare key again to return the balance to zero.
• Memory: The memory function is designed to allow the user to store values and to then progressively add these values into a sample or procedure. Unlike the tare feature, the unit returns to zero and a memory indication appears at the upper left of the display. After a subsequent weight is added, press memory again. The original value is added to the current value giving the total gross weight of the current sample. The memory feature is useful when multiple weighing of different samples is needed and a total gross weight of all samples is required.
• Auto Off: An auto shut off feature is provided which is operational only while the unit is operating under battery power. The unit will automatically turn off after approximately four minutes if no active weighing takes place. Auto shut off will not occur during operation with AC Adapter.

KEYPAD FUNCTIONS

• ON/MEMORY: Press to turn on balance. Once the unit is on, the same key operates the additive memory feature. The following steps outline the procedure for cumulative weighing of samples.
  1. If needed, place container on weighing pan, wait for stable reading, then press "tare" to return balance to zero and permanently remove container weight from the additive procedure.
  2. Add first sample until desired weight is achieved.
  3. Press "memory" to reset unit to zero. The memory symbol (up arrow) appears in the upper left corner, indicating the previous weight value has been stored.
  4. Add second sample until desired weight is achieved.
  5. Press "memory" again. The (up arrow) symbol will disappear and the display will show the combined weight of the first and second samples. Press "memory"and repeat steps 4&5 for additional items.
     NOTE: When the entire load is removed from the balance, the display will show a negative value equal to the tared value of the container if used. To reset the balance to zero, press the tare key.
• OFF: Press to turn off balance. The off key is also used to perform the calibration procedure as outlined under CALIBRATION.
• CAL/MODE: Press and hold this key to begin calibration procedure as outlined under the CALIBRATION section. After unit is on or calibrated, briefly pressing the same key will change the weighing mode. When balance is turned on the unit initially defaults to the kilogram (kg) mode. The following mode may also be selected: pounds (lbs).
• TARE: Press tare to reset the balance to zero. Tare can be used to eliminate the weight value of a container from a sample or procedure. The container weight is permanently removed from the remainder of the procedure.
  NOTE: When all weight is removed from the weighing pan, the tared value of a container will be displayed as a negative number. Press tare again to return the balance to zero.

HOW TO USE THE PARTS COUNTING FEATURE

1. To set your balance to parts counting mode, scroll through the weighing modes by pressing the CAL/MODE keypad until a down facing arrow appears in the lower left corner on the display. The minimum parts quantity number (5) will also be displayed as a flashing number.
2. Continue to press the CAL/MODE keypad to select the desired parts counting unit: 5, 10, 25, 50 pieces. After "50" is displayed, the indicator will scroll back to the gram weighing mode.
3. With the selected parts counting unit still flashing, place the desired sample on the weighing pan. Allow the sample to stabilize for 3-5 seconds then press OFF. The parts counting function is now set for the selected 5, 10, 25, 50 piece quantity.

Minimum individual (1 piece) part weight must be greater than or equal to 5X "D" ("D" is the division or graduation of the balance). If the sample unit weight for one piece is less than 5X "D" the display will read "Er 1", indicating that the individual (1 piece) part weight is too low and must be increased. To reset, press CAL/MODE and scroll through the weighing modes again to the desired parts counting value. Refer to the following chart for minimum unit part weight (1 piece) for your particular balance.

SUPPLIED ACCESSORIES

• AC Adapter
  #AC-1 -For use in USA/Canada (AC 120V 60Hz)
  #AC-2 -For use in Europe (AC 230V 50Hz)
  #AC-3 -For use in U.K. (AC 240V 50Hz)
  #AC-4 -For use in Japan (AC 100V 50/60Hz)
  #AC-5 -For use in AUS/NZ (AC 240V 50Hz)

MINIMUM WEIGHING LIMITATION

Because the SV-Series is designed to be a heavy capacity balance, minimal initial loads may not produce a response from the balance. The minimum initial increment applied to each model should be 50 grams or more. Initial weighing loads may not produce the minimum excitation voltage to produce weight readings.

Specifications