Lutron Electronics MHT-381SD Manual de usuario

SD card real time datalogger

HUMIDITY/TEMP. MONITOR

Model : MHT-381SD

Your purchase of this

HUMIDITY/TEMP.

MONITOR with SD CARD

DATALOGGER marks a

step forward for you

into the field of

precision measurement.

Although this

DATALOGGER is a

complex and delicate

instrument, its durable

structure will allow

many years of use if

proper operating

techniques are

developed. Please read

the following

instructions carefully

and always keep this

manual within easy

reach.

OPERATION MANUAL

TABLE OF CONTENTS

1. FEATURES..................................................................1

2. SPECIFICATIONS........................................................

3. FRONT PANEL DESCRIPTION.......................................4

3-1 Display..................................................................4

3-2 Logger button, Enter button...................................4

3-3 button, Time button..........................................

▲4

3-4 button..............................................................

▼4

3-5 SET button............................................................4

3-6 Humidity/Temp. sensor..........................................4

3-7 Hanging holes.......................................................

3-8 Stand....................................................................4

3-9 Battery cover/Battery compartment........................

3-10 Screw of the battery cover...................................

3-11 Reset button.......................................................

3-12 RS-232 output terminal........................................ 4

3-13 SD card socket....................................................

3-14 DC 9V power adapter input socket........................4

3-15 Hanging unit ( with sticker )................................. 4

4. MEASURING PROCEDURE............................................5

5. DATALOGGER.............................................................5

5-1 Preparation before execute datalogger function.......5

5-2 Datalogger........................................................... 7

5-3 Check time information.......................................... 7

5-4 SD Card Data structure.......................................... 8

6. Saving data from the SD card to the computer..............9

7. ADVANCED SETTING...................................................10

7-1 SD memory card Format........................................

7-2 Set clock time ( Year/Month/Date, Hour/Minute/

Second ).............................................................. 11

7-3 Set sampling time..................................................12

7-4 Set beeper sound ON/OFF......................................12

7-5 Set SD card Decimal character................................13

7-6 Select the Temp. unit to or ............................℃℉ 14

7-7 Set RS232 data output ON/OFF..............................

8. POWER SUPPLY from DC ADAPTER..............................15

9. BATTERY REPLACEMENT.............................................15

10. SYSTEM RESET.........................................................15

11. RS232 PC serial interface...........................................16

12. PATENT....................................................................17

1. FEATURES

* Monitor with real time data logger, save the measuring

data along the time information ( year, month, date,

minute, second ) into the SD memory card and can be

down load to the Excel, extra software is no need.

User can make the further data or graphic analysis by

themselves.

* Show Humidity and Temperature value in the same LCD.

* 0.1 %RH resolution for the humidity reading,

0.1 degree resolution for the Temp. reading.

* Used the precision capacitance type humidity sensor,

professional and high accuracy.

* SD card capacity : 1 GB to 16 GB.

* Sampling adjustment : 5/10/30/60/120/300 seconds

and auto function.

* Large LCD display, easy readout.

* Microcomputer circuit, high reliability.

* Low power consumption and long battery life when

use battery power.

* DC 1.5V ( UM-4, AAA ) battery x 6 PCs or DC 9V

adapter in.

* RS232/USB computer interface available.

*Patented

2. SPECIFICATIONS

2-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.

Display LCD size : 60 mm x 50 mm

Measurement Humidity and Temperature

Memory Card SD memory card, 1 GB to 16 GB.

Datalogger 5/10/30/60/120/300/600 seconds

Sampling Time or Auto.

Default sampling time is 60 seconds.

The " Auto " sampling . means when

the measuring value is changed ( > ±

1 %RH or > ± 1 ) will save the℃

data one time only.

Advanced * SD memory card Format

setting * Set clock time ( Year/Month/Date, Hour/Minute/

Second )

* Set sampling time

* Set beeper sound ON/OFF

* Set SD card Decimal character

* Select the Temp. unit to or℃℉

* Set RS232 data output ON/OFF

Update Time Approx. 1 second if measuring data

of Display is changed.

Data Output RS 232/USB PC computer interface.

* Connect the optional RS232 cable

UPCB-02 will get the RS232 plug.

* Connect the optional USB cable

USB-01 will get the USB plug.

Operating 0 to 50 .℃

Temperature

Operating Less than 85% R.H.

Humidity

Power Supply

Alkaline or heavy duty DC 1.5 V battery

( UM4, AAA ) x 6 PCs, or equivalent.

DC 9V adapter input. ( AC/DC power

adapter is optional ).

Battery life If use the new battery ( alkaline type )

and sampling time set to 60 seconds,

the battery life will be > one month

typically.

Weight 282 g/0.62 LB.

Dimension 132 x 80 x 32 mm

( 5.2 x 3.1 x 1.3 inch )

Accessories Instruction manual...........................1 PC

Included Hanging unit ( with sticker ).............

1 PC

Optional SD Card ( 2 GB ).

Accessories AC to DC 9V adapter.

USB cable, USB-01.

RS232 cable, UPCB-02.

Data Acquisition software, SW-U801-WIN.

2-2 Electrical Specifications (23±5 )℃

Humidity

Range 10 % to 95 % R.H.

Resolution 0.1 % R.H.

Accuracy 70% RH :≧± (3% reading + 1% RH).

< 70% RH :

± 3% RH.

Temperature

Range 0 to 50 ,32 to 122 .℃℃℉ ℉

Resolution 0.1 degree

Accuracy - 0.8 .℃℃

- 1.5 .℉℉

@ Above specification tests under the environment RF Field Strength

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

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Display

3-2 Logger button, Enter button

3-3 button, Time button▲

3-4 button▼

3-5 SET button

3-6 Humidity/Temp. sensor

3-7 Hanging holes

3-8 Stand

3-9 Battery cover/Battery compartment

3-10 Screw of the battery cover

3-11 Reset button

3-12 RS-232 output terminal

3-13 SD card socket

3-14 DC 9V power adapter input socket

3-15 Hanging unit ( with sticker )

4. MEASURING PROCEDURE

1)Install the batteries into the battery compartment :

* Loose the " Screw of the battery cover " ( 3-10, Fig. 1 )

and take away the " Battery Cover " ( 3-9, Fig. 1 ) from

the meter.

* Replace with DC 1.5 V battery ( UM4/AAA, Alkaline/Heavy

duty type ) x 6 PCs, and reinstate the cover.

* Make sure the battery cover is secured after changing

the battery.

2)The " Display " ( 3-1, Fig. 1 ) will show both the

humidity and the temperature value that sensing from

Humidity/Temp. sensor " ( 3-6, Fig. 1 ).

5. DATALOGGER

5-1 Preparation before execute datalogger function

a. Insert the SD card

Prepare a " SD memory card " ( 1 GB to 16 GB, optional ),

insert the SD card into the " SD card socket " ( 3-13, Fig. 1)

with the correct direction exactly.

b. SD card Format

If SD card just the first time use into the meter, it

recommend to make the " SD card Format " at first,

please refer chapter 7-1 ( page 11 ).

c. Time setting

If the meter is used at first time, it should to adjust the

clock time exactly, please refer chapter 7-2 ( page 11 ).

d. Decimal format setting

The numerical data structure of SD card is

default used the " . " as the decimal, for

example "20.6" "1000.53" . But in certain

countries ( Europe ...) is used the " , " as the

decimal point, for example " 20, 6 "

"1000,53". Under such situation, it should

change the Decimal character at first, details

of setting the Decimal point, refer to Chapter

7-5, page 13.

e. 3 Information of LCD display

* If the Display show :

It means that the SD card exist the problem

CH- or the SD card memory is full, it should

CArd change SD memory card.

* If the Display show :

It means that the battery is low voltage.

LobAt Under such condition, the Datalogger

function is disable.

* If the Display show :

It means that the SD card is not plugged

no into the meter.

CArd

5-2 Datalogger

a. Start the datalogger

Press the " Logger button ( 3-2, Fig. 1 ) > 2 seconds

continuously, until the Display show the indicator "

DATALOGGER ", release the " Logger Button " ( 3-2, Fig.

1 ), then the measuring data along the time information

will be saved into the memory circuit.

Remark :

How to set the sampling time, refer to Chapter 7-3,

page 12.

How to set the beeper sound is enable, refer to

Chapter 7-4, page 12.

c.. Finish the Datalogger

During execute the Datalogger function ( Display show the

" Datalogger " indicator ), press the " Logger button " ( 3-2,

Fig. 1 ) > 2 seconds continuously, until the Display

indicator " DATALOGGER " is disappeared, release the

" Logger Button " will finish the Datalogger function.

Before take away the SD card from the

meter, it should execute the

procedures of " Finish the Datalogger ",

otherwise some existing recent save

data may loss.

5-3 Check time information

Press " Time button " ( 3-3, Fig. 1 ) > 2 seconds

continuously, the LCD display will present the time

information of Year/Month/Date, Hour/Minute/Second and

the sampling value.

5-4 SD Card Data structure

1)When the first time, the SD card is used into the meter,

the SD card will generate a folder :

HTC01

2)If the first time to execute the Datalogger, under the

route HTC01\, will generate a new file name

HTC01001.XLS.

After exist the Datalogger, then execute again, the data

will save to the HTC01001.XLS until Data column reach

to 30,000 columns, then will generate a new file, for

example HTC01002.XLS

3)Under the folder HTC01\, if the total files more

than 99 files, will generate anew route, such as

HTC02\ ........

4)The file's route structure :

HTC01\

HTC01001.XLS

HTC01002.XLS

.....................

HTC01099.XLS

HTC02\

HTC02001.XLS

HTC02002.XLS

.....................

HTC02099.XLS

HTCXX\

.....................

Remark :

XX : Max. value is 10.

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