Lutron Electronics FR-5120 Manuel utilisateur

20 Kg x 0.01 Kg ( 10 g )

Precision Fruit Sclerometer

FRUIT HARDNESS TESTER

Model : FR-5120

Your

urchase of this

FRUIT HARDNESS

ESTER marks a step

forward for you into the

field of precision

measurement. Although

this METER is a complex

and delicate instrument,

its durable structure will

allow many years of use

if proper operating

techniques are

developed. Please read

the following

instructions carefully

and always keep this

manual within easy

reach.

OPERATION MANUAL

TABLE OF CONTENTS

1 FEATURES..................................................................

2 SPECIFICATIONS.........................................................2

3 FRONT PANEL DESCRIPTIONS ....................................

3-1 Universal Sensing Head........................................ 4

3-2 LCD Display......................................................... 4

3-3 Fast Indicator...................................................... 4

3-4 FAST/SLOW Button................................................. 4

3-5 LCD Reverse Display Button.................................... 4

3-6 Zero Button............................................................. 4

3-7 Kg/LB/Newton Unit.................................................. 4

3-8 Power Off/On/Peak Hold......................................... 4

3-9 Mounting Holes/fixing Screws................................ 4

3-10 Battery Cover/Compartment.................................. 4

3-11 11 mm Penetrometer Tip, FRTP-11.........................

3-12 8 mm Penetrometer Tip, FRTP-8............................. 4

3-13 5 mm Penetrometer Tip, FRTP-5.............................. 4

3-14 3 mm Penetrometer Tip, FRTP-3.............................. 4

3-15 LCD Back Light Button.............................................4

3-16 DC 9V Power Adapter Input Socket..........................

3-17 RS-232 output terminal......................................... 4

4 MEASURING PROCEDURE ...........................................

4-1 Pay attentions for the measurement......................

4-2 Normal Measurement ...........................................6

4-3 Peak Hold Measurement ......................................

4-4 LCD Back light On/Off............................................7

5 BATTERY REPLACEMENT ............................................

6 RS232 PC SERIAL INTERFACE......................................8

7 MOUNTING HOLES & OPTIONAL TEST STAND..............

1. FEATURES

* The tester is used to measure the hardness of most kind

fruits such as apple, pear, strawberry, grape, large/hard

fruits, small/soft fruits. It is suitable for the fruit

scientific research department, fruit company, fruit farm,

agriculture colleges and universities to improve the fruit

quality, the harvest storage, the product transportation...

by the fruits' hardness. The useful tester to judge fruit's

mature degree.

* Max. capacity : 20 Kgf x 0.01 Kgf ( 10 gf ).

*Unit:Kg/LB/Newton.

* Use load cell sensor, high precision.

* Digital display with Peak hold function, easy

measurement.

* Tension or Compression, Zero.

* Positive/ Reverse display.

* Large LCD display with back light.

* Tip size : 3 mm, 5 mm, 8 mm, 11 mm.

* RS-232/USB computer interface.

* Complete set with hard carrying case and 4 kind tips

( 3 mm, 5 mm, 8 mm, 11 mm ).

* Test stand, FS-1001, optional.

* USB cable ( USB-01) and the data acquisition are optional.

* Peak hold ( Max. load ) can be held in display during

make the measurement.

* Zero button can operate both for normal measuring

& the " peak hold " operation.

* Full capacity zero (tare) control capability.

* Fast/Slow response time push button.

* Hand held & stand mounted gauges are available.

* Low power consumption gives long battery life.

* Microprocessor circuit & exclusive load cell transducer.

* Over load protection.

* Built-in DC 9V power adapter input socket.

2. SPECIFICATIONS

Principal The hardness of Fruit can express by the

unit area ( S ) could undertake the

pressure of dynamometer ( N) , their

specific value is just as the hardness ( P ).

P = N / S

P = Hardness value of fruit ( Kg/cm^2 )

N = Pressure of dynamometer ( N, Kg, LB )

S = Area of pressure ( m^2, cm^2 )

Display LCD ( Liquid crystal display ).

5 digits, 16 mm ( 0.63" ) digit size.

Back light.

Display Positive or Reverse direction, select by

Direction the push button on the front panel.

Function Tension & Compression (Push & Pull).

Normal force, Peak hold ( Max. load ).

Peak hold Will freeze the display value of the

Peak load ( Max. load ).

Zero Zero button can be operated both for

"normal force" or "peak hold" operation

Unit select Kg/Newton/LB.

Measure 20.00 Kg/44.10 LB/196.10 Newton.

Capacity

Resolution 0.01 Kg/0.01 LB/0.05Newton.

Min. Display 0.02 Kg/0.07 LB/0.3 Newton,

Accuracy ± (0.5 % + 2 digits), within 23± 5 .℃

* Under the test weight on 10 Kg & 20 Kg.

Update time Fast Approx. 0.2 second.

Slow Approx. 0.6 second.

Over range Display show " - - - - " when in over

Indicator range status.

Data output RS-232 serial computer interface.

Overload Max. 30 kg.

Capacity

Full Scale Approx. 0.4 mm max.

Deflection

Zero/tare Max. full capacity.

Control

Circuit Exclusive microprocessor LSI-circuit.

Power Supply 6 x 1.5 V AA (UM-3) size battery

or DC 9V adapter (not included).

Power Approx. DC 28 mA

Consumption

Transducer Exclusive load cell.

Operating 0 to 50 ( 32 to 122 ).℃℃℉ ℉

Temperature

Operating Less than 80% RH.

Humidity

Dimension 215 x 90 x 45 mm ( 8.5 x 3.5 x 1.8 inch ).

Weight 650 g ( 1.43 LB )/with batteries.

Data output RS-232 serial computer interface

Mounting Main instrument with mounting holes are

Holes provided on the back case, easy stand

mounting.

Accessories Operatin

manual ...............................

1 PC.

Included 11 mm Penetrometer Tip, FRTP-11......

1 PC.

8 mm Penetrometer Tip, FRTP-8..........1 PC.

5 mm Penetrometer Tip, FRTP-5...........1 PC.

3 mm Penetrometer Tip, FRTP-3...........1 PC.

Carryin

case ......................................1 PC.

Optional * Test stand, Model : FS-1001

Accessories * RS232 cable, Model : UPCB-01.

* USB cable, Model : USB-01.

* SD card data recorder, DL-9602SD.

* Software for data logging & data

recorder, Model : SW-U801-WIN.

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Universal Sensing 3-10 Battery Cover/

Head Compartment

3-2 LCD Display 3-11 11 mm Penetrometer Tip

3-3 Fast Indicator ( FRTP-11 )

3-4 FAST/SLOW Button 3-12 8 mm Penetrometer Tip

3-5 LCD Reverse Display ( FRTP-8 )

Button 3-13 5 mm Penetrometer Tip

3-6 Zero Button ( FRTP-5 )

3-7 Kg/Newton/LB Unit 3-14 3 mm Penetrometer Tip

Switch ( FRTP-3 )

3-8 Power Off/On/Peak Hold 3-15 LCD Back Light Button

0 = Off, 1 = On 3-16 DC 9V Power Adapter

3-9 Mounting Holes/fixing Input Socket

Screws 3-17 RS-232 output terminal

4. MEASURING PROCEDURE

4-1 Pay attentions for the measurement

1)When make the fruit hardness testing, it always use

compression function, the display will show the '" - "

mark automatically.

Remark :

The meter can use the " Tension " measurement,

however for the fruit hardness measurement is not

use this function typically.

2)Pressure head and fruits should be vertical surface.

When make the measurement, the Sensing Head

along the tip should be on a line with measuring fruits

( ref. Fig. 2 )

Fig. 2

3)Rotate the Sensing Head is prohibited. Some certain

angles between Sensing Head & measuring object

are not allowed ( ref. Fig. 3 ).

Fig. 3

4-2 Normal Measurement

1)Slide the " Power Off/On/Peak Hold Switch " ( 3-8, Fig. 1 )

to the " On " position.

0 = Off, 1 = On

2)Determine display unit of g, oz or Newton by selecting

" Kg/Newton/LB Unit Switch " ( 3-7, Fig. 1 ).

3)Connect " Sensing Head " ( 3-1, Fig. 1 ) with proper "

Adapter " ( 3-11 to 3-14, Fig. 1 ) and the " Measuring

Object " should be in straight line. Don't give any force in

standby mode..

4)" Zero Adjust " by pushing " Zero Button "

( 3-6, Fig. 1 ) before every measurement.

5)Start measurement by giving force (push or pull), then the

LCD will display the Average reading value.

During the measurement, if intend to change

the display direction, just push the " Reverse

Button " ( 3-5, Fig. 1 ) once.

*There are two kind sampling time of display, FAST

and SLOW. Push the " FAST/SLOW Button " once

( 3-4, Fig. 1 ), if the upper left corner of LCD show

" FAST " ( Fast Indicator, 3-3, Fig. 1 ), then the

display reading is under the operation of fast

sampling time.

*If the upper left corner of LCD not show the

" Fast Indicator " ( 3-3, Fig. 1 ), the display

reading is under the slow sampling time.

*Over range display of tension function, LCD

will show " "

*Over range display of compression function, LCD

will show " "

4-3 Peak Hold Measurement

The meter can measure the peak value of force both of

tension & compression operation. The operation

procedures of Peak Hold Measurement are same as above "

4-2 Normal Measurement " but should slide the " Power

Off/On/Peak Hold Switch " ( 3-8, Fig. 1 ) to the " PEAK H. "

position.

Slide the " Power Off/On/Peak Hold Switch " ( 3-8, Fig. 1 )

to the " On " position will cancel the peak hold function.

4-4 LCD Back Light On/Off

During the measurement, press and hold ( > 2 seconds )

the " Button " ( 3-15, Fig. 1 ) until LCD Back Light

is ON, then it will be off after a period time.

several seconds then off automatically

5. BATTERY REPLACEMENT

1)When the LCD shows " Lo ", it is necessary to replace

the batteries. However, in-spec. measurement may

still be made for several hours after low battery

indicator appears before the instrument become

inaccurate.

2)Take out the battery cover ( 3-10, Fig. 1 ) away from the

instrument and remove the batteries.

3)Install the batteries ( 6 x 1.5 V AA, UM-3 ) correctly

into the battery case.

6. RS232 PC SERIAL INTERFACE

The instrument features an RS232 output via 3.5 mm

Terminal ( 3-17, Fig. 1 ).

The connector output is a 16 digit data stream which can

be utilized to the user's specific application.

An RS232 lead with the following connection will be

required to link the instrument with the PC serial input.

Meter PC

(3.5 mm jack plug) (9W 'D" Connector)

Center Pin................................

Pin 2

Ground/shield.............................

Pin 5

Table des matières

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