Extech Instruments VIR50-NISTL Manuale utente

User’s Manual

Dual Laser Video IR Video Thermometer

MODEL VIR50

VIR50-EU-EN v2.3 5/14

Introduction

Congratulations on your purchase of the Video IR Thermometer. This meter is capable of making

non-contact (infrared) and contact (thermocouple) temperature measurements. The built-in camera

offers still image and video capturing functionality for documenting measurement locations. The

meter includes a micro SD card slot for offloading still images and video.

The built-in laser pointer increases target accuracy while the backlit LCD and handy push-buttons

combine for convenient, ergonomic operation. This meter is shipped fully tested and calibrated and,

with proper use, will provide years of reliable service.

Features

2.2” TFT LCD display

640 x 480 pixels Digital Camera

Micro SD memory card

Image (JPEG) and video (3gp)

Humidity and Air Temperature Measurements

Dual laser targeting

Type-K thermocouple probe for contact measurements

Adjustable emissivity

High accuracy

Fast response time

Dew-point temperature and Wet bulb temperature functions

Safety

Use extreme caution when the laser pointer beam is on

Do not point the beam toward anyone's eye or allow the beam to

strike the eye from a reflective surface

Do not use the laser near explosive gases or in other potentially

explosive areas

VIR50-EU-EN v2.3 5/14

Meter Description

1. LCD Display

2. Push-buttons (UP/Picture, ESC, and DOWN/VIDEO)

3. Measurement Trigger

4. Retractable Lens Cover

5. Camera, Lasers, and IR sensor

6. Compartment for Type-K jack, USB jack, Reset button

7. Handle Grip and cover for Micro SD memory card slot and

Rechargeable Battery

Rear Panel

1 Display

2 ▲and Camera button

3 Power and ESC button

4 ENTER button

5 ▼and Video button

Front View

1 Camera lens

2 IR thermometer lens

3 Measurement trigger

4 Battery

5 Battery cover

6 Laser pointers

7 Micro SD card port

Note: A tripod mount is located on the bottom of the handle

VIR50-EU-EN v2.3 5/14

Operation

Power ON and OFF

1. The instrument is powered by one (1) rechargeable battery (3.7V). The battery is housed in the

compartment in the meter’s handle.

2. The supplied battery charger connects to the USB port on the instrument (in the compartment

above the measurement trigger).

3. Once the battery is charged, Press and Hold the button for 5 seconds to switch the

instrument ON.

4. Press and Hold the button to switch the unit OFF.

5. In the event that the instrument freezes operation (no reaction when pressing any button), insert

a paper clip into the Reset opening to trigger the RESET function.

6. For accurate readings, wait 30 seconds after powering on to allow the meter to stabilize.

Measurement Modes

The meter has four (4) measurement modes: Video + Infrared, Infrared-only, Dew Point, and

Datalogging mode. When the meter is switched ON, the first screen that appears is the mode

selection screen. Use the ▲/▼buttons to highlight the desired mode and then press the ENTER

button to access the mode.

Video + Infrared mode: the meter functions as an IR meter with the

camera capabilities;

Infrared-only mode: the meter functions as an IR meter only;

Dew Point mode: the meter shows the Dew Point temperature value;

Datalogging mode: the meter functions as a measurement

storage/retrieval device.

Display Symbols

Symbol Description Symbol Description

Video + IR mode High alarm

IR-only mode High alarm triggering

Dew Point mode Low alarm

Laser Low alarm triggering

Scan Hold

VIR50-EU-EN v2.3 5/14

Video + IR mode

In the Video + IR Mode the meter can measure IR temperature, air temperature, humidity, dew-point

temperature, and wet bulb temperature, along with full use of the video camera capabilities. The IR

Maximum (MAX) Temperature, IR Minimum (MIN) Temperature, IR Differential (DIF) Temperature,

and the IR Average (AVG) Temperature can also be displayed. Press and hold trigger to measure

the temperature.

Capturing Still Images (Photographs)

In the Video + IR mode, press the button to take a photograph. Press the button again to

save the photo (the SAVE soft-key will appear above the up arrow button after the photograph is

taken). Press the ▼button to cancel the photo

Capturing Video

In the Video + IR mode, press the button to enter the video capture mode and then press the

button again to begin recording video. Press the ESC button to exit. Use the ▼button to stop

the video.

VIR50-EU-EN v2.3 5/14

IR-only mode

In the IR-only Mode the meter can measure IR temperature, air temperature, air humidity, dew-point

temperature, and wet bulb temperature but without the video camera capabilities. The IR Maximum

(MAX) Temperature, IR Minimum (MIN) Temperature, IR Differential (DIF) Temperature, and the IR

Average (AVG) Temperature can also be displayed. Press and hold trigger to measure the

temperature.

Dew Point Temperature Mode

In the Dew Point mode the meter displays the Dew Point temperature measurement along with the

IR temperature value. Press and hold the measurement trigger to take a measurement.

In the Dew Point mode the percentage bargraph

indicates how close the IR temperature is to the Dew

Point temperature. At 100%, the two values are identical.

VIR50-EU-EN v2.3 5/14

Datalogging Mode

The datalogger automatically records readings to memory at a programmed interval. In the

Datalogging mode, the high/low alarm values, low alarm value, datalogging interval sampling rate

(time), can be configured.

Once configured, press the trigger to start logging. The unit will automatically record data at the

specified sampling time. Press the ESC buttom to exit the DATALOG mode, the meter will

automatically save the data to a file.

Set the high and low alarm values for the datalogger

From the Datalogger screen (shown above) use the arrow keys to select the HIGH or the LOW

alarm value parameter and then press the ENTER button. Use the ▲and ▼buttons to adjust the

alarm value, then press the ENTER button to confirm.

Set interval time for the datalogger

From the Datalogger screen use the arrow keys to select the interval TIME parameter and then

press the ENTER button. Use the ▲and ▼buttons to adjust the time value (logger sampling rate)

in seconds and then press the ENTER button to confirm.

Select the line color for the datalogger

From the Datalogger screen use the arrow keys to select the COLOR parameter and then press the

ENTER button. Use the ▲and ▼buttons to select a line color and then press the ENTER button to

confirm.

VIR50-EU-EN v2.3 5/14

System Tools Settings

From the Video + IR, IR-only, or Dew Point modes, press the ENTER button to access the soft-key

screen. The System Tools is the icon on the left. Use the arrow buttons to scroll over to the System

Tools icon if it is not already highlighted.

Press the ENTER button again when the System Tools icon is highlighted to access the System

Tools settings mode. From the datalogger mode scroll down to the Measure Set parameter and press

ENTER to access to the System Tools setting menu.

Use the ▲and ▼buttons to select an item and then press the ENTER button to access it.

Item Description

Languages Set the language

Date/Format Set the date and format of the date

Time/Format Set the time and format of the time

Units Select the temperature unit of measure

Memory Display the memory and SD card capacity

Buzzer Set the buzzer on or off

Auto screen-off Select the time before the screen automatically turns

off

Auto power-off Select the time before the VIR50 automatically

powers off.

System Default Setting Restores the VIR50 to its default settings

System Upgrade Upgrades the system via the SD card

VIR50-EU-EN v2.3 5/14

Setting the Language

Use the ▲and ▼buttons to select the desired language, and

press the ENTER button to confirm.

Setting the Date

Use the ▲and ▼buttons to select the desired format for the

date, and press the ENTER button to confirm. Once the format

has been chosen, use the ▲and ▼buttons to select the day,

month, and year.

Setting the Time

Use the ▲and ▼buttons to select the desired format for the

time, and press the ENTER button to confirm. Once the format

has been chosen, use the ▲and ▼buttons to select the

minute, hour, and AM/PM (where applicable).

VIR50-EU-EN v2.3 5/14

Setting the temperature units (C/F)

Use the ▲and ▼buttons to select the desired unit of measure, press the ESC button to exit and

save.

Memory

Use the ▲and ▼buttons to select either FLASH or SD CARD, and press the ENTER button to

confirm. Then select either WORKING SPACE or FORMAT, and press the ENTER button to confirm.

If FORMAT was pressed, click YES or NO to confirm.

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