Triplett EM400 Manuale utente

User Manual

EM400

7-in-1 Environmental Meter w/Sound

Introduction

Thank you for selecting the Triplett EM400 Environmental Meter. This

instrument measures Sound Level (dBA) Light, Relative Humidity % with

Air temperature, Dew Point temperature, Web bulb temperature, Type K

temperature (external probe), and Heat Index temperature,. The backlit

LCD includes primary and secondary displays plus a variety of intuitive

status indicators

Features

•Professional environmental meter with programming menu for user-

customization

•Selectable units of measure

•Sound Level readings

•Light measurements in Foot candle and LUX units

•Environmental measurements: Relative humidity % with air

temperature, Dew point temperature, Wet bulb temperature, Heat

Index temperature, and Type K temperature (with external probe

connected)

•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

METER DESCRIPTION

1. Sound Level Microphone

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

Operation

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:

•dbSound Level(dBA)

•rHRelative Humidity in % and Air temperature

•dPDew point temperature

•_EtWet bulb temperature

•HEATtHeat index temperature

•LigHtLight intensity measurements

•tYPEType K thermocouple temperature (must attach thermocouple

to meter)

•

Changing the Units of Measure

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:

oSound dB

oTemperature units oC, oF (for air, dew point, wet bulb,

heat index, and Type K)

oLight units Foot-candles, 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 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

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

Sound Level Measurement

1. With the meter ON, press and hold the M(Mode) button until ‘db’

is displayed; then release the button.

2. The meter will stard measuring the sound in dB.

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 /Relative Humidity/Dew point/Wet

bulb/Heat index Measurements

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

; 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.

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.

Specifications

General

Display

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

Sound Level

Electric condenser microphone.

Light sensor

Cosine/color-corrected photo-diode

Air Temperature

sensor

PT1K ohm RTD

(internal sensor)

Relative Humidity

sensor

Capacitance

sensor

Measurements

Sound Level, Relative Humidity with Air

Temperature, Light, Dew Point, Wet Bulb,

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

18mA DC

Weight

160g (5.6oz)

Dimensions

(HxWxD)

179x 58x 25mm (7.0 x 2.3 x 1.0 inch)

Sound Level (dBA) Meter

Measurement 35 - 130 dB.

Range

Resolution 0.1 dB.

Function Data hold

Record ( Max., Min. ).

Accuracy Characteristics of "A" frequency weighting network

(23 ±5 ℃) meet IEC 61672-2013 class 2 Under 94 dB input

signal, the accuracy is :

The above spec. are tested under the

Environment RF Field Strength <

than 3 V/M & frequency less than 30 MHz only.

Frequency 31.5 to 8,000 Hz.

Microphone type Electric condenser microphone.

Microphone size Out size, 12.7 mm DIA. ( 1/2 inch).

Relative Humidity plus Air Temperature

%RH

10 to 95

0.1

±(4%RH) @ < 70%RH

±(4%rdg +1.2%RH) @ >

70%RH

°C

0 to 50

0.1

±1.2°C

°F

32 to 122

0.1

±2.5°F

Light (automatic ranging)

Lux

0 to 2,200

1,800 to 20,000

±(5%rdg + 8dgts)

Ft-cd

0 to 204.0

0.1

170 to 1,860

Dew Point Temperature

Unit

Range

Resolution

Accuracy

°C

-25.3 to 49.0

0.1

Calculated from

temperature and

°F

-13.5 to 120.0

0.1

humidity readings

Wet Bulb Temperature

°C

-5.4 to 49.0

0.1

Calculated from

temperature and

°F

22.2 to 120

0.1

humidity readings

Heat Index

°C

0 to 100.0

0.1

±2.0°C

°F

32 to 212

0.1

±3.6°F

Exposure to direct sunlight can increase heat index readings by 8oC (14oF)

Type K Thermometer

°C

-50.0 to 1300.0

0.1

±(0.4% + 0.5°C)

-50.1 to -100.0

±(0.4% + 1°C)

°F

-58.0 to 2372.0

0.1

±(0.4% + 1°F)

-58.1 to -148.0

±(0.4% + 1.8°F)

Accuracy is stated for meter only. Additional error is introduced by the external

Triplett / Jewell Instruments extends the following warranty to the original purchaser of

these goods for use. Triplett warrants to the original purchaser for use that the products

sold by it will be free from defects in workmanship and material for a period of (1) one

year from the date of purchase. This warranty does not apply to any of our products

which have been repaired or altered by unauthorized persons in any way or purchased

from unauthorized distributors so as, in our sole judgment, to injure their stability or

reliability, or which have been subject to misuse, abuse, misapplication, negligence,

accident or which have had the serial numbers altered, defaced, or removed.

Accessories, including batteries are not covered by this warranty

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