Triplett AM320 Bedienungsanleitung

User Manual

AM320

CFM/CMM Thermo- Anemometer +

InfraRed Thermometer

Introduction

Congratulations on your purchase of the Triplett AM320 CFM/CMM

Thermo Anemometer with InfraRed Thermometer. This instrument

measures Air Velocity, Air Flow (volume), Air Temperature (with probe)

and Surface Temperature (with the InfraRed function). The large, easy-

to-read backlit LCD includes primary and secondary displays plus

numerous status indicators. The InfraRed feature includes a laser

pointer for convenient targeting. In addition, the meter can store 16

area setting dimension for easy recall. This meter is shipped fully tested

and calibrated and with proper use will provide years of reliable service.

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

CAUTIONS

Improper use of this meter can cause damage, shock, injury or

death. Read and understand this user manual before operating

the meter.

Inspect the condition of the probe and the meter itself for any

damage before operating the meter. Repair or replace any

damage before use.

If the equipment is used in a manner not specified by the

manufacturer, the protection provided by the equipment may be

impaired.

This device is not a toy and must not reach children’s hands. It

contains hazardous objects as well as small parts that the children

could swallow. In case a child swallows any of them, please contact

a physician immediately

Do not leave batteries and packing material lying around

unattended; they can be dangerous for children if they use them

as toys

In case the device is going to be unused for an extended period of

time, remove the batteries to prevent them from draining

Expired or damaged batteries can cause cauterization on

contact with the skin. Always, therefore, use suitable hand

gloves in such cases

See that the batteries are not short-circuited. Do not throw batteries into

the fire.

Do not directly view or direct the laser pointer at an eye. Low

power visible lasers do not normally present a hazard, but may

present some potential for hazard if viewed directly for extended

periods of time

Meter Description

1. Power ON/OFF button

2. Probe input jack

3. Laser pointer

4. IR Sensor

5. Rubber holster

6. LCD Display

7. IR thermometer

measurement button

8. Airflow buttons (4)

9. Air Temperature

function buttons (2)

10. Vane

11. Airflow Average

button

12. Backlight button

13. MAX‐MIN button for TEMPERATURE mode

14. HOLD for TEMPERTAURE functions

15. MAX‐MIN button for AIR VELOCITY/AIR FLOW (also used as left arrow

button)

16. UNITS for AIR VELOCITY/AIR FLOW mode (also used as up arrow button)

17. HOLD for AIR VELOCITY/AIR FLOW mode (also used as right arrow button)

18. AREA button for AIR FLOW (Volume) mode

See next section for additional keypad description information.

Battery compartment is located on rear of instrument, rubber meter

jacket must be removed to access battery compartment

Keypad

Press to turn the meter ON or OFF

IR + Laser Pointer Press and hold to measure.

MAX/MIN (Airflow) Record and store the highest and

lowest airflow or velocity readings. ◄ (LEFT) also serves as

change decimal point button in AREA mode

UNITS Press to select the mode of operation. In FLOW mode,

the meter displays air volume. In VELOCITY mode, the meter

displays air speed. ▲ (UP) also serves as increase number

button in AREA mode.

HOLD Press to freeze the displayed reading. Press again to

unlock display. ►(RIGHT) also serves as change digit button in

AREA mode.

AREA Press and hold to manually enter the area of a duct in CFM

or CMM mode.

oPress and hold to scroll thru memory locations.

oThis button also clears memory in the Averaging mode.

Press to turn the backlight on/off. Hold to disable Auto Power

Off.

MAX/MIN (Temperature) Press to record and store

the highest, lowest readings for air temperature.

HOLD (Temperature) Press to freeze the displayed temperature

reading. Press again to unlock the display.

AVG Press and hold to enter averaging mode. Averages up to 20

readings.

Display Layout

MAX (top of LCD): Max Hold function engaged for the Air Temperature

function

HOLD (top of LCD): Data Hold function engaged for the Air Temperature

function

PROBE TEMP: Reminder that the

top LCD digits represent Air (Vane)

Temperature

: Indicates that the laser

pointer is on.

IR TEMP: Indicates that the larger

LCD digits represent IR

temperature measurement

VEL: indicates that meter is in air

velocity mode

FLOW: indicates that meter is in air flow mode

MAX (bottom of LCD): Max Hold for the IR Temperature and RH function

HOLD (bottom of LCD): Data Hold for the IR Temperature function and

RH function

oC / oF: Temperature units of measure

CFM/CMM: airflow units of measure

Ft2, m2: units for area dimensions

m/s, ft/min, km/h, MPH, knots: air velocity units of measure

X10, X100: multipliers for air flow readings

AVG: air averaging mode

RECORD: indicates that min/max function is running

(top for temp, bottom for air) Large LCD digits at center

of display for Relative Humidity and IR Temperature

Smaller LCD digits at top, right of display for Probe

Temperature

: Low battery indicator

Operation

Connecting the Vane

1. The vane plug is inserted in the meter’s sensor jack at the top of

the meter. The plug and jack are keyed so that the plug can only fit

in the jack one way.

2. Turn the plug carefully until it lines up with the jack and then firmly

push the plug in place. Do not apply undue force or try to twist the plug

side-to-side.

3. If the vane is not connected to the meter or if the sensor is

defective, the LCD display will indicate dashed lines in place of

an air velocity reading.

Air Velocity Measurements

1. Turn on the meter using the ON/OFF

button.

2. Press UNITS button to select the desired unit

of measure. NOTE: At power up the meter will

display the last unit of measure previously

entered.

3. Place the sensor in the air stream. Ensure that

the air enters the vane as indicated by the

arrow sticker placed inside the vane. Refer to

the diagram.

4. View the air velocity and temperature readings

on the LCD Display. The large main LCD

display shows the Air Velocity reading. The upper right LCD sub-

display shows the temperature reading.

Air Velocity Measurements (Up to 20 Point averaging)

1. To enter 20 Point Averaging Mode, press and hold the AVG button

until it beeps twice. The AVG icon will be displayed.

2. Take a measurement and press the AVG button. A single beep will

sound and the HOLD icon will appear in the display.

3. The average reading will be displayed and number of readings

measured will appear in the upper right hand corner of the display.

After 5 seconds, the display will return to the current reading.

4. Repeat steps 2 - 3 until all desired points have been measured.

5. To return to standard velocity measuring mode press and hold

AVG button until meter beeps twice.

Note: In the standard velocity measuring mode, press the AVG button

once to recall the previous average. The average will be cleared

when you enter the Averaging Mode again.

Air Flow Measurements (CMM / CFM)

1. Turn on the meter using the ON/OFF button

2. Press the UNITS button to select the desired air

flow units: CMM (cubic meters per minute) or

CFM (cubic feet per minute). NOTE: At power up

the meter will display the last unit of measure

previously entered.

3. To begin entering the area in m2or ft2, press and

hold the AREA button until it beeps twice. The

leftmost digit of the bottom display will begin to

flash.

4. Use the ▲ (UP) button to change the flashing digit

Use the ◄ (LEFT) button to move the decimal Use ►

(RIGHT) button to select the other digits.

After all of the digits are entered, press and hold the AREA button

(until meter beeps twice) to save the area into memory and return

to CFM or CMM measuring mode.

5. Place the sensor in the air stream. Ensure that the air enters the

vane as indicated by the arrow sticker placed inside the vane. Refer

to the diagram. The large main LCD display shows the Air Velocity

reading. The upper right LCD sub-display shows the temperature

reading.

The meter has 16 memory locations (8 for CFM and 8 for CMM) that can

be used to store commonly used area sizes that you can recall at anytime.

1. Press the AREA button until meter beeps twice. A memory location

number will appear in the top right of the display indicating the

memory location.

2. Push the AREA button to scroll thru and select the desired

location. Once you have selected the desired memory location

enter your dimension

Use the ▲ (UP) button to

change the flashing digit

Use the ◄ (LEFT) button

to move the decimal

Use ► (RIGHT) button to select the other digits. After all of the digits

are entered, press and hold the AREA button (until it beeps twice) to

save the area into memory and return to CFM or CMM measuring

mode.

To select and use a previously stored dimension, press and hold the AREA

button until it beeps twice.

Press AREA to scroll thru the 8 memory locations. Press and hold the

AREA button until it beeps twice to return to the CFM or CMM

measuring mode.

Air Flow Measurements (Up to 20 Point averaging)

1. To enter 20 Point Averaging Mode, press and hold the AVG

button until it beeps twice. The AVG icon will be displayed.

2. Take a measurement and press the AVG button. A single beep will

sound and the HOLD icon will appear in the display.

3. The average reading will be displayed and number of readings

measured will appear in the upper right hand corner of the display.

After 5 seconds, the display will return to the current reading.

(IMPORTANT: Please note that the average readings are only held

for 5 seconds and cannot be recalled.)

4. Repeat steps 2 - 3 until all desired points have been measured.

5. Press the AREA button to clear the multipoint averaging memory.

6. To return to standard airflow measuring mode press and hold

AVG button until meter beeps twice.

Data Hold (Air Velocity/Air Flow)

1. While taking measurements, press the HOLD button to freeze the air

velocity/air flow reading for later viewing.

2. The HOLD indicator will appear in the bottom of the LCD display.

3. Press HOLD again to return to normal operation.

MAX/MIN/AVG Record (Air Velocity/Air Flow)

This allows the user to record and view the highest (MAX), lowest

(MIN) and average (AVG) readings.

* Press the Airflow MAX/MIN button. The AVG indicator and

RECORD indicator along with the average reading will appear on the

LCD display and the meter will begin keeping track of the MAX, MIN

and Average values.

* Press the MAX/MIN button again. The MAX indicator will appear on

the display and display the Max reading.

* Press the MAX/MIN button again to view the minimum reading. The

MIN indicator along with the minimum reading will appear on the LCD

display and display the Min reading.

* Press the MAX/MIN button again to display current readings.

NOTE: the meter will keep recording MAX/MIN/AVG readings.

* To clear and stop MAX/MIN/AVG recording and return to normal

operation, press the AREA button once when displaying the

current reading.

Temperature Units

1. Remove the meter’s rubber protective jacket and select the desired

temperature units using the °F/°C slide switch located in the battery

compartment.

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