Rice Lake TC-220, TC-420, TC-620, TC-1200, TC-2200 Operation Manual
...
IMPORTANT
To ensure safe and proper use of the balance, please read
107243
Rice Lake TC
Tuning Fork Compact Electronic Balance
Operation Manual
•
this manual carefully.
• After reading this manual, store it in a safe place near the
balance, so you can review it as needed.
(3) Pan base
(4) AC adapter
Round pan
RL-TC -220～620:
Square pan
PREFACE
Thank you for purchasing an RL-TC Series electronic balan ce. This is a precisio n instrument equipped with
exacting mechanisms in a compact body. The RL-TC series provides enhanced functions, including a counting
mode for stock control o f p art s, a pe rc ent ag e mode for comparative measurem en ts 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
(2) Measurement pan
(one round or square pan)
(one small for the round-pan
balance; one large for the
square-pan balance)
for Round pan
for Square pan
・
φ
・RL-TC -1200:170mm×
140mm
・RL-TC -2200～12K:180mm
×160mm
© 2011 Rice Lake Weighing Systems. All rights reserved.
CONTENTS
PREFACE ................................................. i
CONTENTS .............................................. i
1. Precautions on the Use ....................... 1
2. Names of Component Parts ................ 4
2.1 Main Unit........................................ 4
2.2 LCD Indicators and Operating Keys 5
2.2.1 Symbols Displayed ................................... 5
2.2.2 Names and Functions of Operating Keys .. 6
3. Basic Operations ................................ 7
3.1 Installation ...................................... 7
3.2 Operation Check ........................... 8
3.3 Operation for Tare Subtraction ....... 9
4. Functions .......................................... 11
4.1 Setup and Checking of Functions 11
4.2 Description of Functions............... 12
4.3 Interface Section .......................... 13
10. Operating the Balance with the Battery
....................................................... 29
10.1 Specifications .............................. 29
10.2 Charging Method ........................ 29
10.3 User Precautions ......................... 29
11. Troubleshooting .............................. 30
12. Specifications ................................. 31
12.1 Basic Specifications ................... 31
12.2 Common Specifications ............. 31
12.3 Minimum Display by Unit of Measurement
................................................... 32
13. Conversion Table of Units................ 34
TC Series Limited Warranty .................... 35
5. Switching Function for Units of Measurement
....................................................... 14
5.1 Switching Units of Measurement .. 14
5.2 Setup of Units of Measurement .... 14
6. Counting Pieces ................................ 16
6.1 Sampling ...................................... 16
6.2 Increasing the Counting Accuracy (Memory
Update Method) .......................... 18
7. Measuring Percentage ...................... 20
8. Limit Function ................................... 22
8.1 Limit Function Setup .................... 22
8.2 Setup of Limit Values by Actual Quantity Loads
................................................... 24
8.3 Setting up Limit Values by Inputting Values
................................................... 25
9. Calibrating the Balance ..................... 27
RL-TC Series Operation Manual i
Printed in the United States of America.
Specifications subject to change without notice.
July 2011
ii RL-TC Series Operation Manual
This symbol indicates a risk of injury or property damage if the balance is used
i
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 ba l ance.
Meanings of Symbols Each symbol is accompanied by an instruction.
Indicates a “mandatory” action that should be
Indicates a "prohibited" action that must not be executed.
Do not disassemble or modify the unit.
Only AC power (rated value) should be used.
Do not move the balance when a sample is
1. Precautions on the Use
• This Section "Precautions Relating to Use" sets forth precautiona ry notes that the user shou ld observ e in ord er
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 ind ica ted u nder the two categ or ies of " Cauti on" and
"Recommended," and explained using symbols.
mproperly. Be sure to observe these notes to ensure safe use o–f the balance as
executed without fail.
• Could cause malfunction or heat generation
• Contact our Marketing Division or Technical
Service Division.
Only use the dedicated AC adapter.
• Use of other types of power or adapters may
result in heat generation or malfunction of the
balance.
loaded.
• The loaded sample may fall off the
measurement pan and cause an injury.
RL-TC Series Operation Manual 1
Do not place the balance on an unstable base
impossible.
Do not lay the AC adapter cable in the path of
balance to fall off, thereby causing injury and/or
Do not touch the AC adapter or balance with
Do not use the balance in a location were it
Do not use the balance with its adjusters (feet)
Do not use the balance in a location where it
RECOMMENDED
Calibrate
Balance
Calibrate the balance after installation or
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
traffic.
• Somebody may trip on the cable, causing the
damage to the balance.
wet hands.
• Danger of electric shock
may be subjected to excess moisture.
• Electric shock or short-circuiting could occur.
• The balance may be corroded, with resultant
malfunction.
lifted.
• The balance will become unstable,
preventing accurate measurement.
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.
relocation.
• Measurement values may contain errors,
preventing accurate measurement from being
conducted.
2 RL-TC Series Operation Manual
Avoid applying excess force or impact to the
Do not use the balance in a location were it
and less
than 80% relative humidity.
Do not use the balance in a location where it is
measurement.
Unplug
Adapter
If the balance is to be unused for an extended
neutral detergent.
Do not use the balance in a location where it
Do not use the balance on a soft floor.
Check Level
Do not use the balance when it is out of level.
An inclined balance is likely to produce errors,
ce the balance on a level
surface.
balance.
• Place the sample to be measured on the
balance carefully to prevent breakage or
malfunction.
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,
Do not use the balance when [o - Err]
(Overloaded) is displayed.
• Take down the loaded sample immediately to
prevent breakage or malfunction.
subject to direct sunlight.
• The indications would be illegible.
• An internal temperature increase in the
balance may lead to inaccurate
period of time, unplug the adapter.
• This conserves power and prevents
deterioration.
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
RL-TC Series Operation Manual 3
may be subject to air from an air-conditioning
unit.
• Extreme changes in the ambient temperature
may result in inaccurate measurements.
• When loaded with a sample, the balance may
tip or move, preventing accurate
measurements from being conducted.
preventing accurate measurements from
being conducted. Pla
Measurement pan
Level for checking the
Operation keys (see page 7)
Adjusters
Measurement
Liquid crystal
RS-232C connector
AC adapter connector
Front View (round-pan t ype )
Square-pan type
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)
level of the balance.
Turn the adjusters until
the bubble rests in the
center of the red circle.
pan
display (LCD)
See page 6.
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
4 RL-TC Series Operation Manual
(option)
・TC-1200:170mm×140mm
・TC-2200～TC-12K:180mm×160mm
Display
Description
○
[ ] (ct) carat
[ ] (oz) ounce
[ ] (lb) pound
[ ] (ozt) troy ounce
[ ] (dwt) penny weight
[ (Upper right) ] grain
[ Upper right ] (tl Upper right) tael (Singapore,Malaysia)
[ Lower right ] (tl Lower right) tael (Taiwan)
[ ] (to) tola
.
Operating the Balance on the Battery” on page 29.)
0
F
0
0 F
Pcs
#
g
％
ＨＩ
ＯＫ
ＬＯ
2.2 LCD Indicators and Operating Key s
2.2.1 Symbols Displayed
g
→0←
→T←
＊
Pcs
%
mom
M
CAL
Bar graph
Grams
Zero point
Tare being subtracted
Indication of stable balance (If the light is off, the balance is unst able.)
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.
Momme
Display of set values from memory (If a value is flashing, it is being saved.)
Stays on and flashes while span adjustment is in progress.
[ ]（tl）tael (Hong Kong)
Lights up when the balance is battery-operated. The indication changes to
[ ] when the battery capacity decreases and charging is required. (See “10
RL-TC Series Operation Manual 5
Operating Key
Function
saves the settings of the number of pieces or
using the limit function.
[Brief press] starts setting the number of pieces or
limit function.
[Brief press] toggle-switches the units to be displayed in
[Longer continuous press] invokes s pan adjustment.
[Brief press] resets the indication to zero when using
balance in the function mode.
2.2.2 Names and Function s of Op erating Keys
On/off key
Memory key
Target key
Function key
Zero/Tare key
Key to turn on/off the unit power
[Brief press] initiates print or output.
[Brief press]
percentages (%), or the limit value when
percentages (%).
[Continuous press] starts setting the limit value when using the
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.
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
6 RL-TC Series Operation Manual
Be sure to mount the pan base in the
, as illustrated below.
2 Securing the exact level of the balance
Turn the adjusters (feet) until the
prevent them from lifting up.
3 Connecting the AC adapter
Connect the AC adapter to the
3. Basic Operations
3.1 Installation
1 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.
correct direction
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
RL-TC Series Operation Manual 7
balance, as illustrated at left.
1 Turning on the power
When the balance has the AC
The display section lights up, and the
3 Switching the measurement mode
[%]
4 Verifying changes in the read-out indicator
Press the measurement pan lightly
0
0 F
Pcs
#
g
％
ＨＩ
ＯＫ
ＬＯ
3.2 Operation Check
adapter connected, it displays [＊].
Pressing the On/Off key
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.
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] → · · ·
8 RL-TC Series Operation Manual
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.
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