Rice Lake TC-220 Manual de usuario

Rice Lake TC

Tuning Fork Compact Electronic Balance

Operation Manual

Function Zero/Tare

Memory

On/Off Tar g et

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

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.

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.

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

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.

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 Tar ge t

Function Zero/Tare

Memory

On/Off Tar ge t

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

2.2 LCD Indicators and Operating Keys

2.2.1 Symbols Displayed

Pc s

％

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

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.

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