Rice Lake TC-220, TC-420, TC-1200, TC-2200, TC-4200 Operation Manual
...
Rice Lake TC
Tuning Fork Compact Electronic Balance
Operation Manual
Function Zero/Tare
Memory
On/Off
Targe t
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.
107243
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.
Despite its many functions, the balance is easy to operate and features user-friendly keys. Furthermore,
the large liquid-crystal display provides excellent visibility, and the instrument’s high speed and
stability−intrinsic to a tuning fork design
−help boost operational efficiency.
Before using the balance, please check that the following items have been included in the
package.
Should you find any missing parts, please contact your local dealer or our marketing division at once.
(1) Main unit of balance
Function Zero/Tare
Memory
On/Off
Target
(2) Measurement pan
(one round or square pan)
(3) Pan base
(one small for the round-pan
balance; one large for the
square-pan balance)
for Round pan
for Square pan
(4) AC adapter
Round pan
・RL-TC -220～620:φ140mm
Square pan
・RL-TC -1200:170mm×140mm
・RL-TC -2200～12K:180mm×160mm
1
CONTENTS
1. Precautions on the Use ........................... 2
2. Names of Component Parts .................... 5
2.1 Main Unit ........................................... 5
2.2 LCD Indicators and Operating Keys ...
........................................................ 6
3. Basic Operations ...................................... 8
3.1 Installation ......................................... 8
3.2 Operation Check ............................... 9
3.3 Operation for Tare Subtraction ....... 10
4. Functions ................................................ 12
4.1 Setup and Checking of Functions ... 12
4.2 Description of Functions ................. 13
4.3 Interface Section ............................. 14
5. Switching Function for Units of
Measurement ........................................ 15
5.1 Switching Units of Measurement .... 15
5.2 Setup of Units of Measurement ...... 15
6. Counting Pieces ..................................... 17
6.1 Sampling ......................................... 17
6.2 Increasing the Counting Accuracy
(Memory Update Method) ............. 19
7. Measuring Percentage ........................... 21
8. Limit Function ......................................... 23
8.1 Limit Function Setup ....................... 23
8.2 Setup of Limit Values by Actual
Quantity Loads .............................. 25
8.3 Setting up Limit Values by Inputting
Values ........................................... 26
9. Calibrating the Balance ......................... 28
10. Operating the Balance with the Battery
............................................................... 30
11. Troubleshooting ................................... 31
12. Specifications ....................................... 32
12.1 Basic Specifications ...................... 32
12.2 Common Specifications ................ 32
12.3 Minimum Display by Unit of
Measurement ................................ 33
13. Conversion Table of Units ................... 35
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"
and "Recommended," and explained using symbols.
This symbol indicates a risk of injury or property damage if the
balance is used improperly. Be sure to observe these notes to
ensure safe use o–f the balance as the improper use may cause
serious results.
RECOMMENDED
This term indicates steps that the user should take to ensure the
quality and reliability of the balance.
Meanings of Symbols Each symbol is accompanied by an instruction.
強制記号
Mandatory
Symbol:
Indicates a “mandatory” action that should be executed
without fail.
水平確認
Check Level
禁止記号
Prohibitive
Symbol:
Indicates a "prohibited" action that must not be executed.
使用禁止
Do not Use
注 意
！
CAUTION
分解禁止
Do Not
Disassemble
Do not disassemble or modify the unit.
• Could cause malfunction or heat generation
• Contact our Marketing Division or Technical
Service Division.
定格外禁止
Do Not
Deviate from
Ratings
Only AC power (rated value) should be used.
Only use the dedicated AC adapter.
• Use of other types of power or adapters may
result in heat generation or malfunction of the
balance.
移動禁止
Do Not Move
Do not move the balance when a sample is
loaded.
• The loaded sample may fall off the
measurement pan and cause an injury.
2
定格外禁止
Do Not Use
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.
• Accurate measurement may be rendered
impossible.
定格外禁止
Do Not Drop
Do not lay the AC adapter cable in the path of
traffic.
• Somebody may trip on the cable, causing the
balance to fall off, thereby causing injury and/or
damage to the balance.
定格外禁止
Do not Handle
with Wet Hands
Do not touch the AC adapter or balance with
wet hands.
• Danger of electric shock
定格外禁止
Keep Dry
Do not use the balance in a location were it
may be subjected to excess moisture.
• Electric shock or short-circuiting could occur.
• The balance may be corroded, with resultant
malfunction.
定格外禁止
Do Not Leave
Afloat
Do not use the balance with its adjusters (feet)
lifted.
•
The balance will become unstable,
preventing accurate measurement.
定格外禁止
Avoid Dust
Do not use the balance in a location where it
may be subjected to excess dust.
• Risk of explosion or fire
• Short-circuit or lack of continuity may occur,
leading to a malfunction of the balance.
RECOMMENDED
Calibrate
Balance
Calibrate the balance after installation or
relocation.
• Measurement values may contain errors,
preventing accurate measurement from being
conducted.
3
定格外禁止
Do Not Apply
Force
Avoid applying excess force or impact to the
balance.
• Place the sample to be measured on the
balance carefully to prevent breakage or
malfunction.
定格外禁止
Do Not Use
Do not use the balance in a location were it
may be subjected to abrupt changes in
ambient temperature or humidity.
• Accurate measurement may not be obtained.
• Optimum operations occur when ambient
temperatures range from 5°C to 35°C, and less
than 80% relative humidity.
定格外禁止
Do Not
Overload
Do not use the balance when [
o - Err]
(Overloaded) is displayed.
• Take down the loaded sample immediately to
prevent breakage or malfunction.
定格外禁止
Do Not Use
Do not use the balance in a location where it is
subject to direct sunlight.
• The indications would be illegible.
• An internal temperature increase in the
balance may lead to inaccurate
measurement.
Unplug
Ada
pter
If the balance is to be unused for an extended
period of time, unplug the adapter.
•
This conserves power and prevents
deterioration.
定格外禁止
Do Not Use
Do not use volatile solvents for cleaning.
• The body may be distorted.
• To clean the unit of stains, use a piece of dry
cloth or cloth soaked in a small quantity of
neutral detergent.
定格外禁止
Do Not Use
Do not use the balance in a location where it
may be subject to air from an air-conditioning
unit.
• Extreme changes in the ambient temperature
may result in inaccurate measurements.
定格外禁止
Do Not Use
Do not use the balance on a soft floor.
• When loaded with a sample, the balance may
tip or move, preventing accurate
measurements from being conducted.
Check Level
Do not use the balance when it is out of level.
An inclined balance is likely to produce errors,
preventing accurate measurements from
being conducted. Place the balance on a level
surface.
4
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)
Function Zero/Tare
Memory
On/Off
Targ et
Function Zero/Tare
Memory
On/Off
Target
Measurement pan
Liquid crystal
display (LCD)
See page 6.
Level for checking the level
of the balance.
Turn the adjusters until
The bubble rests in the
center of the red circle.
Operation keys (see page 7)
Adjusters
Round-pan type: Total of two, one on either
side of the unit’s front
Square-pan type: Total of four, one on either
side at front and rear
RS-232C connector
(option)
AC adapter connector
Front View (round-pan type)
Sqare-pan type
Measurment pan
・TC-1200:170mm×140mm
・TC-2200～TC-12K:180mm×160mm
5
2.2 LCD Indicators and Operating Keys
2.2.1 Symbols Displayed
0
0F
Pc s
#
g
％
ＨＩ
ＯＫ
ＬＯ
Display Description
g
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
Pcs
Counting mode
%
Percentage mode
Indication of judgement result (HI/OK/LO) when the limit function is active.
mom
Momme
M
Display of set values from memory (If a value is flashing, it is being saved.)
CAL
Stays on and flashes while span adjustment is in progress.
Bar graph
[ ] (ct) carat
[ ] (oz) ounce
[ ] (lb) pound
[ ] (ozt) troy ounce
[ ] (dwt) penny weight
[ (Upper right) ] grain
[ ]（tl）tael (Hong Kong)
[ Upper right ] (tl Upper right) tael (Singapore,Malaysia)
[ Lower right ] (tl Lower right) tael (Taiwan)
[ ] (to) tola
Lights up when the balance is battery-operated. The indication changes to
[ ] when the battery capacity decreases and charging is required. (See “10.
Operating the Balance on the Battery” on page 29.)
0
F
6
2.2.2 Names and Functions of Operating Keys
Operating Key Function
On/Off
On/off key Key to turn on/off the unit power
Memory
Memory key
[Brief press] initiates print or output.
[Brief press] saves the settings of the number of pieces or
percentages (%), or the limit value when
using the limit function.
Target
Target key
[Brief press] starts setting the number of pieces or
percentages (%).
[Continuous press] starts setting the limit value when using the
limit function.
Function
Function key
[Brief press] toggle-switches the units to be displayed in
succession (g, Pcs, %, etc.).
[Brief press] moves the flashing digit in the setup of a limit
value when using the value input method.
[Brief press] selects an item when setting the function.
[Continuous press] invokes various functions.
[Longer continuous press] invokes span adjustment.
Zero/Tare
Zero/Tare key
[Brief press] resets the indication to zero when using
zero-point setup or tare subtraction.
[Brief press] selects a value with the value input method
when using the limit function.
[Brief press] selects a function when operating the
balance in the function mode.
7
3. Basic Operations
3.1 Installation
1 Positioning the measurement pan
Function Zero/Tare
Memory
On/Off
Target
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.
2 Securing the exact level of the balance
Function Zero/Tare
Memory
On/Off
Targe t
Turn the adjusters (feet) until the
bubble rests in the center of the red
circle on the level.
Round-pan type: total of two
adjusters, one on
either side at front
Square-pan type: total of four
adjusters, one on
either side at front
and rear
<Caution>
Use caution when operating the
adjusters on the square-pan type to
prevent them from lifting up.
3 Connecting the AC adapter Connect the AC adapter to the
balance, as illustrated at left.
8
3.2 Operation Check
1 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.
2 Checking the display
Check to see if the display has any
missing indications or unlit parts.
A few seconds after startup, the
indication is reset to zero.
3 Switching the measurement mode
0.00
0.00
0.00
0
Function Zero/Tare
Memory
On/Off
Target
Function Zero/Tare
Memory
On/Off
Target
Function Zero/Tare
Memory
On/Off
Target
Function Zero/Tare
Memory
On/Off
Target
Press the Function key.
Each time the key is pressed, the unit
of measurement changes, as
indicated.
※The balance is shipped from the
factory with the following switching
sequence: [g] → [ct] → [Pcs] → [%]
→ [g] → · · ·
4 Verifying changes in the read-out indicator Press the measurement pan lightly
and make sure that the read-out
indicator changes.
Also, ensure that the read-out
indicator is reset to zero when you
release your hand.
0
0F
Pc s
#
g
％
ＨＩ
ＯＫ
ＬＯ
9
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