Lutron Electronics PCO-350 Bedienungsanleitung

0 to 1000 PPM, alarm setting, pen type

CO METER

Model : PCO-350

Your purchase of this

CO 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

2-1 General Specifications.......................................... 1

2-2 Electrical Specifications........................................

3.FRONT PANEL DESCRIPTION.....................................

3-1 CO Sensing Head.................................................3

3-2 Power Button......................................................

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

3-4 Alarm Button................................................. 3

3-5 LCD Display.........................................................3

3-6 Battery Compartment/Cover.................................3

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

4-1 CO measurement.................................................4

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

4-3 CO Alarm setting.................................................

4-4 Auto power off....................................................

4-5 Set the Temp. unit ( , ) with default..............℃℉ 5

4-6 Zero adjustment.................................................. 5

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

6. CO value via HEALTH INFORMATION.........................

1. FEATURES

* Two function : CO ( Carbon monoxide ), Temperature.

* CO range : 0 to 1,000 PPM x 1 PPM.

* Temperature. : 0 to 50 , /℃℃℉

* CO measurement with fast response time.

* High repeatability and high accuracy.

* Pen type, easy to carryout and operation.

* CO function with alarm setting.

* Data hold function for freezing the desired value

on display.

* Microprocessor circuit assures maximum possible

accuracy, provides special functions and features.

* Auto shut off function to prolong the battery life.

* Operates from DC 1.5V ( UM4/AAA ) x 4 PCs batteries.

* Durable and compact ABS-plastic housing.

2. SPECIFICATIONS

2-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.

Display LCD size : 28 mm x 19 mm.

Measurement CO( Carbon dioxide ),

Temperature

Unit CO PPM

Temp. ,℃℉

Sensor Type CO Electrochemical

Temperature Thermistor

Temperature Automatic temp. compensation for

Compensation CO measurement.

Alarm Setting For CO measurement only.

Data Hold Freeze the display reading.

Sampling Time Approx. 1 second.

Power off Auto shut off saves battery life.

Zero Build in zero button for offsetting

the zero value

Operating 0 to 50 .℃

Temperature

Operating Less than 80% R.H.

Humidity

Power Supply DC 1.5 V battery ( UM4/AAA ) x 4 PCs.

Power Current Approx. DC 4.0 mA

Weight 194 g/ 0.43 LB.

Dimension 180 x 40 x 40 mm (7.1" x 1.6" x 1.6")

Accessories Instruction manual......................1 PC

Included Soft carrying case ( CA-52A )......

1 PC

2-2 Electrical Specifications (23±5 )℃

CO ( Carbon dioxide )

Range 0 to 1,000 PPM

CO Resolution 1 PPM

Carbon

Accuracy ± ( 5% + 2 PPM )

monoxide

Response < 30 seconds

time *

Repeatability < 2%

Zero drift in < 5 PPM

long term

Sensitivity < 5% per year

drift

The response time value is specified to reach

the 90% reading value.

Temperature

Range 0 to 50 ,32 to 122 .℃℃℉ ℉

emperature Resolution 0.1 degree.

Accuracy ℃± 0.8℃

℉±1.5 .℉

@ Above specification tests under the environment RF Field Strength less than 3

/M & frequency less than 30 MHz only.

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 CO Sensing Head

3-2 Power Button

3-3 Hold Button

3-4 Alarm Button

3-5 LCD Display

3-6 Battery Compartment/Cover

4. MEASURING PROCEDURE

4-1 CO measurement

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

( 3-2, Fig. 1 ) once,

* Press the " Power Button " once again will power

off.

2)Locate the " CO sensing head " ( 3-1, Fig. 1 )

to the position that intend to make the measurement.

The upper Display ( 3-5, Fig. 1) will show the CO

value in the unit of " PPM ". The lower Display ( 3-5,

Fig. 1) will show the Temperature ( Air Temp. ) value

in the unit of " " or " ".℃℉

4-2 Data hold

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

( 3-3, 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 CO Alarm setting

Press the " Alarm Button " ( 3-4, Fig. 1 ) once in sequence

will present the Alarm setting value on the Display. Until

the desired Alarm value show on the Display, release the

" Alarm Button ", wait one second the Display will return to

normal screen. If the measurement CO value > Alarm

setting value, the Beeper will sound continuously.

* The Alarm setting value are :

25 PPM, 50 PPM 100 PPM, 200 PPM, 300 PPM, 400 PPM

500 PPM and OFF.

* If set the Alarm setting value to " OFF ", the Alarm

function will switch to " OFF " ( disable ).

4-4 Auto power off

In order to prolong the battery life, the instrument

has "Auto Power Off " function. The meter will

switch off automatically if no buttons are pressed

for around 10 minutes.

4-5 Set the Temp. unit ( , ) with default℃℉

1)Power OFF the meter.

2)Press the " Hold Button " ( 3-3, Fig. 1 ) continuously,

use another finger power ON the meter ( press the "

Power Button " once ), until the Temp. unit ( or )℃℉

is presented on the Display then release the " Hold

Button ", the Temp. unit will change From to ( or℃℉

to ) with default.℉℃

4-6 Zero adjustment

Put the meter into the clean air environment ( not

contain any CO value ), power on the meter by

pressing the " Power Button " ( 3-2, Fig. 1 ), wait

about 30 seconds to warm up the meter.

If the display not show " Zero " CO value, then pressing

" Alarm Button " ( 3-4, Fig. 1 ) continuously at

least five seconds will offset the display value and

show " 0 PPM ".

* The zero adjustment procedures are effected only

existing Display value is within 10 PPM.

5. BATTERY REPLACEMENT

1)Replace the batteries when the left corner of the LCD

displays the low battery icon " ".

2)Prepare 4 fresh 1.5 V ( UM4, AAA ) batteries.

3)To change the batteries, open ( rotate clockwise direction )

the " Battery Cover " ( 3-6, Fig. 1 ).

4)Make sure the " Battery cover " (3-6, Fig 1) is secured

after changing the batteries.

6. CO VALUE VIA HEALTH

INFORMATION

0 to 1 PPM General environment

9 PPM Max. exposure time : 8 hours

* United States Environmental Protection Agency

35 PPM Max. exposure time : 1 hour

* United States Environmental Protection Agency

50 PPM Max. exposure time : 8 hour

* OSHA

100 PPM Max. exposure : 100 minutes

* Circulation air * UL2034

200 PPM Headache, tired : Two to three hours

Max. exposure : 35 minutes

* UL2034

400 PPM Headache, tired : One to two hours

Harm the life : Three hours

Max. exposure : 15 minutes

* UL2034

800 PPM Headache, tired : 45 minutes

Death : Two to three hours.

1600 PPM Death : One hour.

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61001-PCO350

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