ATP Electronics ET-931 Manuale utente

User's Manual

Professional Humidity & Temperature Meter

Please read this user's manual thoroughly before using this

unit and keep it properly for your future

Contents

1. Safety ......................................................................1

2.Introduction..............................................................2

3.Features....................................................................2

4.Specifications ...........................................................3

5.Meter Description.....................................................4

6.LCD Display Description .........................................5

7.Operation Instruction................................................6

8.Notes ........................................................................8

9.Accessories...............................................................9

1. Safety

Read the following safety information carefully before

attempting to operate or service the meter.

Use the meter only as specified in this manual; otherwise, the

protection provided by the meter may be impaired.

◆Environment conditions:

RH≤90％（Non-Condensation）

Operating Temperature: -20℃~70℃

Storage Temperature: -30℃~70℃

◆Maintenance

Repairs or servicing not covered in this

manual should only be performed by qualified personnel.

Wipe the unit with a dry soft cloth. Do not use abrasives or

solvents on this instrument.

◆Safety Symbol

Comply with EMC

2. Introduction

The Humidity & Temperature Meter is designed with a high

accuracy temperature & humidity sensor, providing high

accuracy, fast response and stable readings. It is widely used for

monitoring and collecting data of environment temperature and

humidity.

This meter is widely used for measurement of temperature and

humidity of room, metro, library, commercial center,

communication center room, etc.

3. Features

◆Temperature units: ℃/℉

◆MAX record

◆MIN record

◆Data hold

◆Dew Point Temperature measurement

◆Backlight display

◆Resolution: 0.1%RH, 0.1℃

◆Low battery indication

4. Specifications

Humidity range

0~100%RH

Humidity accuracy

0~20%RH，80%~100%RH

±4.0%

20% ~40%RH，60% ~ 80%RH

±3.0%

40% ~ 60%RH

±2.5%

Temp. range

-20℃~70℃(-4℉~158℉)

Temp. accuracy

-20℃~70℃(-4℉~158℉)

±1.0℃/±1.8℉

Dew Point temp. range

-20℃~70℃(-4℉~158℉)

Dew Point temp. accuracy

25℃;40%~100%RH

±1.0℃/±1.8℉

Display

3 1/2 digits

Data update

1 times/sec

Auto power off

Meter automatically shuts down after

approx. 15 minutes inactivity.

Power supply

One 9V battery, 006P or IEC 6F22 or

NEDA 1604.

Battery life

at least 30 hours

Operating conditions

-20℃~70℃，10％RH~90％RH

Storage conditions

-20℃~70℃，10％RH~75％RH

Dimension(L*W*H)

151g

Weight:

158*62*32mm

5. Meter Description

①Temp.& Humidity sensor ②LCD display

③℃/℉selection key ④MAX/MIN selection key

⑤SET key ⑥Backlight ON/OFF key

⑦Power ON/OFF key ⑧Battery compartment

6. LCD Display Description

①Battery icon

②Data hold icon

③MAX icon

④MIN icon

⑤Humidity unit icon

⑥Humidity record

⑦Temperature units icon

⑧Temperature record

⑨Timing power off icon

⑩Dew point temperature icon

7. Operation Instruction

(1) Open battery cover and install a 9-volt battery in the battery

compartment.

(2) Power ON: Turn the meter on by pressing " " button for

1 second until the LCD is lighted, then loose the button.

(3) Power OFF: Turn the meter off by pressing and holding

" " button for approx. 3 seconds until the LCD is switched

off, then loose the button.

(4) When the low battery icon " " appears, replace the

meter's battery.

(5) ℃/℉Selection

In the measuring mode, press " " button to convert the

temperature units ℃or ℉.

(6) “ ” button function

1) Hold: press " " button once, "HOLD" icon will appear

on the LCD, which indicates the data is freezed. To release the

held reading, press the button again.

2) MAX/MIN record

Press and hold " " button for three seconds, MAX icon

will appear on the LCD, which indicates the current maximum

reading, press this button again to enter into MIN mode. Then

keep pressing " " for three seconds to exit MAX/MIN

mode.

(7) “ ” button function

①Auto power off

Press " " button once to power on or off the meter.

When” ” icon displayed on the screen, it indicates that the

meter will automatically turn off after approx. 15 minutes of

inactivity.

If there is no “ ” icon displayed on the screen, it indicates the

power off function is disabled.

②Dew Point Temperature

Press and keep the " " button for three seconds until

“DEW” icon appears on the LCD, which indicates the dew point

temperature measurement is conducting. Then keep pressing this

button for three seconds to exit it.

(8) “ ” button function

After power on the meter, press " " button once, the

backlight will be on, press this button again to turn off it. The

backlight will be automatically powered off in 30 seconds after

turning on the backlight.

8. Notes

(1) This meter has already been calibrated before delivery. Do

not revise the calibration parameters without professional

personnel and device. The recommended calibration period is

one year.

(2) Repairs or servicing not covered in this manual should only

be performed by qualified personnel.

(3) Wipe the unit with a dry soft cloth. Do not use abrasives or

solvents on this instrument.

(4) Remove the battery when the meter is to be stored for long

periods of time to avoid battery leakage.

(5) Replace new batteries when the low battery icon " "

appears.

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