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Table of Contents
Related Manuals for Rice Lake TC-220
Summary of Contents for Rice Lake TC-220
- Page 1 Rice Lake TC Tuning Fork Compact Electronic Balance Operation Manual IMPORTANT • To ensure safe and proper use of the balance, please read this manual carefully. • After reading this manual, store it in a safe place near the balance, so you can review it as needed.
- Page 3 PREFACE Thank you for purchasing an RL-TC Series electronic balance. This is a precision instrument equipped with exacting mechanisms in a compact body. The RL-TC series provides enhanced functions, including a counting mode for stock control of parts, a percentage mode for comparative measurements given in percentages, and a limit function for measuring constant quantities by consecutive weighings.
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Page 4: Table Of Contents
CONTENTS 1. Precautions on the Use ......2 7. Measuring Percentage ......21 2. Names of Component Parts ....5 8. Limit Function ......... 23 2.1 Main Unit ........... 5 8.1 Limit Function Setup ....... 23 2.2 LCD Indicators and Operating Keys ... 8.2 Setup of Limit Values by Actual Quantity Loads ...... -
Page 5: Precautions On The Use
1. Precautions on the Use • This Section "Precautions Relating to Use" sets forth precautionary notes that the user should observe in order to prevent physical injury to the user and/or damage to property. • The nature of problems that may result in the event of improper operation, and consequential effects on the quality and performance of the balance, are indicated under the two categories of "Caution"... - Page 6 Do not place the balance on an unstable base or use the balance in a location where it may be subjected to shock. • The loaded sample may fall off the measurement pan. 定 格 外 禁 止 Do Not Use •...
- Page 7 Avoid applying excess force or impact to the balance. • Place the sample to be measured on the balance carefully to prevent breakage or 定 格 外 禁 止 Do Not Apply malfunction. Force Do not use the balance in a location were it may be subjected to abrupt changes in ambient temperature or humidity.
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Page 8: Names Of Component Parts
2. Names of Component Parts 2.1 Main Unit Round-pan types (TC-220, TC-420, TC-620) Square-pan types (TC-1200, TC-2200, TC-4200, TC-6200, TC-12K) Measurement pan Front View (round-pan type) Liquid crystal display (LCD) See page 6. Level for checking the level of the balance. -
Page 9: Lcd Indicators And Operating Keys
2.2 LCD Indicators and Operating Keys 2.2.1 Symbols Displayed ＨＩ ＯＫ ＬＯ ％ Display Description Grams →0← Zero point →T← Tare being subtracted ○ Indication of stable balance (If the light is off, the balance is unstable.) ＊ Balance powered up (Lights up when the power is turned off) or data transmitted Counting mode Percentage mode Indication of judgement result (HI/OK/LO) when the limit function is active. - Page 10 2.2.2 Names and Functions of Operating Keys Operating Key Function On/off key Key to turn on/off the unit power On/Off [Brief press] initiates print or output. [Brief press] saves the settings of the number of pieces or Memory key percentages (%), or the limit value when Memory using the limit function.
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Page 11: Basic Operations
3. Basic Operations 3.1 Installation Positioning the measurement pan First, mount the pan base on the main unit of the balance and place the measurement pan on top of it. Be sure to mount the pan base in the correct direction, as illustrated below. Securing the exact level of the balance Turn the adjusters (feet) until the bubble rests in the center of the red... -
Page 12: Operation Check
Operation Check Turning on the power When the balance has the AC adapter connected, it displays [＊]. Pressing the On/Off key The display section lights up, and the balance is ready for operation. Checking the display Check to see if the display has any missing indications or unlit parts. -
Page 13: Operation For Tare Subtraction
3.3 Operation for Tare Subtraction Place the tare (container) on the balance. As you place the tare, the balance indicates its weight. Reset read-out indication to zero. Press the Zero/Tare key. The tare is subtracted and the balance indicates zero. 0.00 On/Off Memory... - Page 14 ☆ Key Points of the Procedure ☆ The following applies equally to all the measurement modes for weight measurement, counting, and percentages. After the balance is switched off, there is still enough current to display [＊]. This indicates that the AC adapter is connected to an electrical outlet, but that the balance is turned off.
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Page 15: Functions
4. Functions 4.1 Setup and Checking of Functions Invoking the function Press and hold down the Function key until the indicator Func changes to “ ,” then release Func 0.00 the key. The function setup mode is activated, On/Off Memory Target Function Zero/Tare... -
Page 16: Description Of Functions
4.2 Description of Functions Item Set Value Description Disable 1..b.G.. Bar graph display Enable ☆1 Disable ☆0 2.SEL Limit function Enable ☆1 Always judge (judges even when the balance is unstable) Judgement 21.Co. Judge only when the balance is stable (does not judge condition if the balance is unstable) Ranges beyond +5 graduation is judged (ranges +5... -
Page 17: Interface Section
4.2 Description of Functions (cont.) 4.3 Interface Section ☆ denotes a factory-setting ※ The data interval in continuous output mode is 0.1 to 1 second. (The interval varies depending on weighting conditions and other factors.) -
Page 18: Switching Function For Units Of Measurement
5. Switching Function for Units of Measurement Pressing the Function key allows the user to switch the unit of measurement to [g], [ct], [%], and so on. During setup, a maximum of five different units can be registered for use in function setup mode. 5.1 Switching Units of Measurement Switching the units of measurement to be displayed Press the Function key. - Page 19 4 Pressing the [Function] key to change the units of Press the Function key. measurement Each press advances through the units of measurement to be displayed. ※The balance is shipped from the On/Off Memory Function Zero/Tare factory with the following default setup: Target [g] →...
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Page 20: Counting Pieces
6. Counting Pieces To implement piece-counting, the specified samples are loaded on the balance, and their average unit weight (hereinafter, simply the “unit weight”) is entered and saved. The procedure for saving unit weights is called sampling. The counting procedure consists of loading articles that have already been sampled on to the balance. The number of pieces is then calculated by dividing the total weight of the loaded articles by the unit weight saved in memory. - Page 21 Changing the sampling number, if necessary. If samples to be counted widely deviate in weight, or a higher measure of How to change the value accuracy is desired, it is recommended that users change the sampling number to a larger value. Press the Zero/Tare key.
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Page 22: Increasing The Counting Accuracy (Memory Update Method)
☆ Key Points of the Procedure ☆ 6.2 Increasing the Counting Accuracy (Memory Update Method) ※This procedure is the same as the sampling procedure described on the previous page up, to the point at which the sampling number is changed. Loading samples Load the number of samples displayed. - Page 23 Adding samples Add approximately an equal number of samples as the number currently displayed. Add them gradually, in groups of approximately the same number, until the number of samples is approximately double. The additional samples need not be counted. Saving the samples Press the Target key.
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Page 24: Measuring Percentage
7. Measuring Percentage The percentage measurement function operates by weighing an actual sample, selected as the reference, and saving its weight as the reference value and indexing it as 100%. When a measurement sample loaded on the balance is lighter or heavier than the reference, its weight is indicated as a percentage (%) value relative to the reference weight. - Page 25 ☆ Key Points of the Procedure ☆...
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Page 26: Limit Function
8. Limit Function The limit function judges measurements according to a limit value saved in the balance. ◄ The function shows the judgement result by displaying the [ ] mark as either HI (excessive), OK (appropriate), or LO (insufficient). This function is very useful when discriminating between conforming and nonconforming articles. - Page 27 8.1 Limit Function Setup (cont.) Selecting a function item Press the Function key. The display changes to the next item [Limit Function]. 2.SEL On/Off Memory Target Function Zero/Tare Setting the limit function Press the Zero/Tare key to set the value on the rightmost side to [1]. 2.SEL On/Off Memory...
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Page 28: Setup Of Limit Values By Actual Quantity Loads
8.2 Setup of Limit Values by Actual Quantity Loads Starting the limit function Press and hold down the Target key. Release the key when [ ] is On/Off Memory Function Zero/Tare Target displayed. L. SET The currently set lower-limit value flashes. -
Page 29: Setting Up Limit Values By Inputting Values
8.3 Setting up Limit Values by Inputting Values Starting the limit function Press and hold down the Target key. Release the key when [ ] is displayed. On/Off Memory Target Function Zero/Tare L. SET The currently set lower-limit value flashes. On/Off Memory Function... - Page 30 8.3 Setting up Limit Values by Inputting Values (cont.) Opening the value input screen Press the Zero/Tare key. Follow the same procedure as in “Step ◄ 2.” 000.00 On/Off Memory Function Zero/Tare Target Setting the upper-limit value Follow the same procedure as described for the lower-limit value and enter the ◄...
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Page 31: Calibrating The Balance
9. Calibrating the Balance Since electronic balances are affected by gravity gravitational acceleration, they produce different values in various locations. Therefore, before use, balances must be calibrated at the location where they are installed. Calibration is also required after long periods without use, or if a balance begins to produce inaccurate values. - Page 32 Calibrating the Balance (cont.) Calibrating the capacity point Load the calibration weight in the center of the balance. The display flashes, indicating that capacity point calibration is in progress. Terminating the span adjustment When the calibration of the capacity point is finished, the original measurement mode is restored.
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Page 33: Operating The Balance With The Battery
10. Operating the Balance with the Battery This function can be used only when the balance is battery-operated. 10.1 Specifications • Built-in nickel-cadmium battery • Charging time: Approximately 12 hours • Drive time: Approximately 32 continuous hours • Number of charge/discharge cycles: 300 or more 10.2 Charging Method ※While the balance is battery-operated, [... -
Page 34: Troubleshooting
11. Troubleshooting ※ The numbers in ( ) indicate reference pages Symptom Cause Possible remediation → • The AC adapter is not connected. There is no indication on Check that the AC the display. adapter is connected (8). • The balance is subject to air currents or →... -
Page 35: Specifications
12. Specifications 12.1 Basic Specifications Model TC-220 TC-420 TC-620 TC-1200 Capacity [g] 1200 Readability [g] 0.01 0.01 0.01 Measurable unit weight in 0.01 0.01 0.01 counting mode [g] Minimum weight in percentage mode [g] Weight measuring Tuning fork vibration method... -
Page 36: Minimum Display By Unit Of Measurement
12.3 Minimum Display by Unit of Measurement Model TC-220 TC-420 TC-620 TC-1200 Unit_of measurement 1200 0.01 0.01 0.01 1100 2100 3100 6000 (ct) 0.05 0.05 0.05 (oz) 0.0005 0.0005 0.0005 0.005 0.48 0.92 (lb) 0.00005 0.00005 0.00005 0.0005 (ozt) 0.0005 0.0005... - Page 37 Minimum Display by Unit of Measurement (continued) Model RL-TC- RL-TC- RL-TC- RL-TC- Unit of 2200 4200 6200 measurement 2200 4200 6200 12000 11000 21000 31000 60000 (ct) (oz) 0.005 0.005 0.005 0.05 (lb) 0.0005 0.0005 0.0005 0.005 (ozt) 0.005 0.005 0.005 0.05 1400...
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Page 38: Conversion Table Of Units
13. Conversion Table of Units Unit Gram carat Ounce Pound troy ounce Penny Weight 0.03527 0.00220 0.03215 0.64301 0.00705 0.00044 0.00643 0.12860 28.34952 141.74762 0.06250 0.91146 18.22917 453.59237 2267.96185 14.58333 291.66667 1ozt 31.10348 155.51738 1.09714 0.06857 1dwt 1.55517 7.77587 0.05486 0.00343 0.05 0.06480...