Triplett EM300 User manual

User Manual

EM300

10-in-1 Environmental Meter w/Airflow

Introduction

Thank you for selecting the Triplett EM300 Environmental Meter. This

instrument measures Air Velocity with Air temperature, Air Flow (volume),

Light, Relative Humidity % with Air temperature, Dew Point temperature,

Web bulb temperature, Type K temperature (external probe), Heat Index

temperature, and Wind Chill temperature. The backlit LCD includes

primary and secondary displays plus a variety of intuitive status indicators

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Features

•Professional environmental meter with programming menu for user-

customization

•Selectable units of measure

•Air velocity with air temperature readings

•Air Flow (Volume) measurements in CFM (ft³) and CMM (m³) units

•Light measurements in Foot candle and LUX units

•Environmental measurements: Relative humidity % with air

temperature, Dew point temperature, Wet bulb temperature, Wind

chill temperature, Heat Index temperature, and Type K temperature

(with external probe connected)

•Low-friction ball bearing mounted vane wheel for high

accuracy low air velocity measurements

•Built-in barometric sensor for precise atmosphere and altitude

monitoring

•MAX-MIN Recording

•Display Hold freezes displayed reading for convenience

•Compact, light-weight, easy-to-use, ergonomic design with lanyard

•Backlit LCD automatically reverses orientation to match selected sensor

mode

Description

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METER DESCRIPTION

1. Air Velocity Vane

2. Type K Thermocouple Input

3. LCD Display

4. Display Hold / Mode Button

5. Light Sensor

6. Humidity/Temperature sensors

7. Power/Backlight button

8. MAX-MIN Record/Enter Button

LCD Description

1. MAX/MIN Record icon

2. MAX Display

3. MIN Display

4. Display Hold

5. Primary Display

6. Units of Measure

7. Temperature Display

8. Reverse Orientation Display

9. Units of Measure (for reverse display)

Operation

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Meter Power

1. Three (3) 1.5V ‘AAA’ batteries power the meter. The battery

compartment is located on the rear of the meter secured by one

flat head screw.

2. Short press the power button to switch the meter ON. The

meter will begin displaying readings for the mode selected.

3. Long press the power button to power OFF the meter.

Auto Power OFF (APO)

In order to conserve battery life, the meter will automatically switch

off after approximately 10 minutes of inactivity. Note that APO does

not function while the meter is in the MAX -MIN Recording mode

(short press the Rbutton to access the MAX-MIN Recording mode).

Selecting the Operating Mode

Long press the M(Mode) button to scroll through the list of functions.

When the desired mode is displayed, release the button. See display

icons with brief descriptions below:

•AnAnemometer (Air Velocity plus Air temperature)

•AirFLAir flow (Volume) in CFM and CMM units

•CHiLLWind chill temperature

•rHRelative Humidity in % and Air temperature

•dPDew point temperature

•_EtWet bulb temperature

•HEAtHeat index temperature

•LigHtLight intensity measurements

•tYPEType K thermocouple temperature (must attach thermocouple

to meter)

Changing the Units of Measure

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Press and hold the R button until the word ‘Unit’ appears.

Now short press the power button to change the units for the

selected measurement mode.

Short press to save the selection and move to the

secondary function, if applicable (temperature, for example).

Short press the power button to change the secondary function

units, if applicable, and then short press to save.

See units list below:

oAir Velocity units M/S, km/h, mph, knot, FPM

oAir Flow units CFM (ft3) and CMM (m3)

oTemperature units °C and °F (for air, wind chill, dew

point, wet bulb, heat index, and Type K)

oLight units Foot-candles (Ft-cd), LUX

Reversible Backlight LCD

The LCD display automatically reverses its presentation

orientation depending on measurement mode. This is to match the

display orientation with the selected sensor mode (light, air

velocity, or environmental measurements such as Wet bulb

temperature).

The LCD is equipped with backlighting for easier viewing,

especially in dimly lit areas. With the meter powered ON, short

press the power button to turn ON the backlight. The backlight will

power OFF after several seconds.

Display Hold

Short press the H (Hold) button to freeze and unfreeze the displayed

reading. The Display Hold mode is not operational when using the MAX-

MIN Recording mode.

MAX-MIN Record Mode

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In this mode, the meter records the maximum and minimum readings

over time.

Short press the R (Record) button to start recording MAX/MIN

readings.

Now use short presses of the R button to toggle MAX and MIN reading

displays.

Short press the H button to reset MAX and MIN memories.

Press and hold the R button to exit the Recording mode.

Measurement Modes

Air Velocity with Air temperature

With the meter ON, press and hold the M (Mode) button until ‘An’ is

displayed; then release the button.

Hold the measurement vane in the air stream (in either direction).

View the air velocity and air temperature readings on the LCD.

Light Measurements

Press and hold the M button until ‘LigHt’ is displayed; then release.

Hold the meter so that the source of light fully encompasses the light

sensor dome.

View the light reading on the LCD (light readings are displayed in

reverse orientation).

Type K/Wind chill/Relative Humidity/Dew

point/Wet bulb/Heat index Measurements

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Press and hold the M button until the desired function is displayed:

CHiLL Wind chill; rH Relative Humidity (with air temperature); dP Dew

point; _Et Wet bulb; HEAt Heat index; tYPE Type K thermocouple

temperature (attach thermocouple to meter)

Place the meter or type K probe in the measurement area and view the

readings on the LCD.

Air Flow (CFM, CMM) Volume Measurements

•Press and hold the M button until ‘AirFl’ appears.

•Enter the duct area (in square feet or meters) by short pressing M

and long pressing R until ‘m-2’ (m2) or ‘f-2’ (ft2) appears. Short

press the power button to increase or H to decrease the area; Long

press the power or H button to scroll quickly. See area equations

below.

•Short press to save.

•Remember to convert inches, centimeters, or other unit to square

feet or square meters before entering the area; otherwise, the air

flow readings will not be correct.

•Place the vane in the air duct and read the air flow reading in CFM (ft³)

or CMM (m³) units on the LCD.

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Area equation for rectangular or square ducts

Height (H)

Area (A) = Width (W) x Height

(H)

Width (W)

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Maintenance

Battery Replacement

When the low battery icon appears on the display please replace

the batteries as described below.

1. Remove power from the meter.

2. Remove the flat head screw that secures the battery

compartment at the back of the meter.

3. Open the battery compartment and replace the three (3) 1.5V

‘AAA’ batteries observing correct polarity. Re-assemble the

meter before use.

Safety: Please dispose of batteries responsibly; never dispose of batteries

in a fire, batteries may explode or leak. If the meter is not to be used for

60 days or more, remove the batteries and store separately.

Never dispose of used batteries or rechargeable batteries in

household waste.

As consumers, users are legally required to take used

batteries to appropriate

collection sites, the retail store where the batteries were

purchased, or wherever batteries are sold.

Disposal: Do not dispose of this instrument in household

waste. The user is obligated to take end-of-life devices to a

designated collection point for the disposal of electrical and

electronic equipment.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild

detergent; do not use abrasives or solvents. Do not allow

moisture to come in contact with any of the sensors.

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Specifications

General

Display

Backlit LCD 3.0 x 3.5 cm (1.18 x 1.38”)

Air Velocity

Sensor

Low friction ball bearing

vane

Light sensor

Cosine/color-corrected photo-diode

Air Temperature

sensor

PT1K ohm RTD (internal

sensor)

Relative Humidity

sensor

Capacitance sensor

Measurements

Air Velocity with Air Temperature, Relative Humidity

with Air

Temperature, Light, Air Flow, Dew Point, Wet Bulb,

Wind Chill, Heat

Index, and Type K Temperature (requires external

thermocouple)

Tripod mount

On rear of meter

Operating

Humidity

80% RH Max

Operating

Temperature

0 to 50°C (32 to 122°F)

Over Limit

Display

“----“

Power Supply

3 x 1.5V AAA batteries

Power

Consumption

Approximately 5mA DC

Weight

145g (5.1oz)

Dimensions (HxWxD)

153x 58x 25mm (6.0 x 2.3 x 1.0 inch)

Air Velocity plus Air Temperature

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