MRC PSA-311 Manual de usuario

Pen type, all in one, IP-67

SALT METER

Model : PSA-311

Your purchase of this SALT

METER 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................................................................1

2. SPECIFICATIONS......................................................1

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

3-1 Battery compartment/Cover................................. 3

3-2 Display...............................................................

3-3 Power Button...................................................... 3

3-4 Hold Button........................................................

3-5 REC Button.........................................................

3-6 Salt Sensing Head.............................................. 3

3-7 Protection Cover for Sensing Head....................... 3

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

4-1 Salt measurement ..............................................

4-2 Data hold............................................................5

4-3 Data record ( Max., Min. reading )........................6

4-4 Auto power off management................................6

5. REPLACEMENT OF BATTERY.................................... 6

6. OPTIONAL ACCESSORIES..........................................7

1. FEATURES

* The pen type, all in one Salt meter provides fast,

accurate readings, with digital readability and easy

operation.

* Measuring range : 0 to 12 % salt ( % weight ).

* Build in temperature sensor, ATC ( auto temperature

compensation ).

* Carbon rod electrode for long life.

* IP67, water proof and protection.

* LCD display, read. to read.

* Data hold function for freezing the desired value.

uto power off to save the battery life.

* Records max. and min. value with recall.

* Microcomputer circuit, intelligent function, high accuracy.

* Compact size, light weight.

* Built-in Low battery indicator.

* Power supply by DC 1.5 V battery ( UM4/AAA ) x 4 PCs.

* Application : Water conditioning. aquarium, food

processing, photography, school, laboratory, industrial

and quality control.

2. SPECIFICATIONS

Display LCD, size : 20 mm x 28 mm.

Measurement 0 to 12 % salt ( % weight ).

Range

Resolution 0.01 % salt.

Accuracy 0.5 % salt value

* F.S. : full scale.

* 23 ± 5℃

Temperature Automatic, 0 to 50 ( 32 to 122 ).℃℉

Compensation

Probe Carbon rod electrode for long life.

Structure

Data Hold Freeze the display reading.

Memory Recall Maximum & Minimum value.

Sampling Approx. 0.8 second.

Time

Circuit Custom one-chip of microprocessor LSI

circuit.

Power off Auto shut off saves battery life or

manual off by push button.

* Power will off automatically after

10 min., if no button be pressed.

Operating 0 to 50 ( 32 to 140 ).℃℉

Temperature

Operating Less than 80% RH.

Humidity

Power Supply DC 1.5V battery ( UM-4/AAA ) x 4 PCs.

Power Approx. 5.7 mA.

Consumption

Dimension 190 x 40 x 40 mm

( 7.5 x 1.6 x 1.6 inch ).

Weight 171 g/0.38 LB.

Standard Instruction Manual......................... 1 PC

Accessories

Optional * Soft carrying case with sash

Accessories ( 210 x 80 x 50 mm ), Model : CA-52A

* Hard carrying case

( 280 x 195 x 65 mm ), Model : CA-06

3. FRONT PANEL DESCRIPTION

3-1 Battery compartment/Cover

3-2 Display

3-3 Power Button

3-4 Hold Button

3-5 REC Button

3-6 Salt Sensing Head

3-7 Protection Cover for Sensing Head

4. MEASURING PROCEDURE

4-1 Salt measurement

1)Turn on the meter by pressing the " Power Button "

( 3-3, Fig. 1 ) momentarily.

* Press the " Power Button " ( 3-3, Fig. 1 )

momentarily again will turn off the meter.

The " Display " ( 3-2, Fig. 1 ) will show the unit as :

0.00

Now the meter is ready for the measurement.

2)Hold the meter by hand and immerse the " Salt Sensing

Head " ( 3-6, Fig. 1 ) immersed wholly into the

measured solution. Shake the " Sensing Head " to

let the electrode's internal air bubble drift out from the

" Sensing Head ".

" Display " ( 3-2, Fig. 1 ) will show the salt value in

and salt ( % weight value ).

Fig. 2

When make the

measurement should

immerse the " Sensing

Head " immersed

wholly into the measured

solution.

3)The " Sensing Head " build in the temperature sensor

for the usage of automatic Temp. compensation. If

the temperature of measured salt solution is changed,

then it should take few minutes to let the display

reading reach the stable value.

4-2 Data Hold

1)During the measurement, press the " Hold Button "

( 3-4, Fig. 1 ) momentarily to hold the measured

value. The LCD will show a " HOLD " symbol.

2)Press the " Hold Button " once again to release the

data hold function.

4-3 Data Record ( Max., Min. reading )

1)The data record function records the maximum and

minimum readings. Press the " REC Button " ( 3-5, Fig. 1 )

momentarily to start the Data Record function,

shows " REC " on the display.

2)With the " REC " symbol on the display.

a)Press the " REC Button " ( 3-5, Fig. 1 ) momentarily,

the " REC MAX " symbol along with the maximum

value will appear on the display.

b)Press the " REC Button " ( 3-5, Fig. 1 ) momentarily

again, the " REC MIN " symbol along with the

minimum value will appear on the display.

* When display shows " REC MAX " or " REC MIN ",

press the " Hold Button " ( 3-4, Fig. 1 )

momentarily will delete the max. ( min. ) value,

the display will show the " REC. " only and

execute the memory function continuously.

c)To exit the memory record function, press the

" REC " button for 2 seconds at least. The display will

revert to the current reading, not show " REC "

indicator.

4-4 Auto power off management

The meter has built-in "Auto Power Shut-off " function in

order to prolong battery life. The meter will switch off

automatically if none of the buttons are pressed within

10 min..

5. REPLACEMENT OF BATTERY

1)When the LCD display show " " ,

it is necessary to replace the battery. However, in-spec

measurement may still be made for several hours after

Low Battery Indicator appears before the instruments

instrument become inaccurate.

2)To replace the battery, rotate and remove the

" Battery Cover " ( 3-1, Fig. 1 ), take out the old

batteries, install new batteries :

DC 1.5V battery ( UM-4/AAA ) x 4 PCs.

)

When install the batteries, should make attention

the battery polarity.

4)After install the batteries, reinstall the battery cover

again. 6

6. OPTIONAL ACCESSORIES

Hard carrying case. Soft carrying case.

Model : CA-06 Model : CA-52A

280 x195 x 65 mm 210 x 80 x 50 mm

3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 [email protected]

MRC.9.16

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