MRC HT-3027SD User manual

SD card real time data recorder
%RH, Welt bulb, Dew point, Type K/J Temp.
PRECISION HYGROMETER
Model : HT-3027SD
Your purchase of this
PRECISION
HYGROMETER marks a
step forward for you
into the field of
precision measurement.
Although this Meter 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.......................................................................
.................................
2
3. FRONT PANEL DESCRIPTION..................................................................
.........................................
6
4. MEASURING PROCEDURE....................................................................
....................................
7
4-1 Function selection ....................................................................
............................................
7
4-2 Data Hold........................................................................................
.............................................
9
4-3 Data Record ( Max./ Min. reading )....................................................................
10
4-4 LCD Backlight ON/OFF....................................................................
........................................
10
5. DATALOGGER................................................................................
..............................................
11
5-1 Preparation before execute datalogger function...............................................................................
11
5-2 Auto Datalogger ( Set sampling time ≧1 second ).......................
...........................................
11
5-3 Manual Datalogger ( Set sampling time = 0 second ).....................
...........................................
12
5-4 Check time and sampling time information...................................................................................................................
13
5-5 SD Card Data structure.......................................................................................
13
6. Saving data from the SD card to the computer........................
.......................................
15
7. ADVANCED SETTING...............................................................................
..........................................
17
7-1 Set clock time ( Year/Month/Date, Hour/Minute/ Second )..........
......................
17
7-2 Set sampling time....................................................................................................
18
7-3 Auto power OFF management ..........................................................
....................................
18
7-4 Set beeper Sound ON/OFF.....................................................................................................
19
7-5 Decimal point of SD card setting.....................................................................................
19
7-6 SD memory card format...............................................................
...................................
20
7-7 Select the temperature unit to ℃or ℉
...........................................................
20
7-8 Select the thermometer type to Type K or Type J....................................................................................................
20
8. POWER SUPPLY from DC ADAPTER.....................................................
........................
21
9. BATTERY REPLACEMENT.............................................................
...........................
21
10. SYSTEM RESET................................................................................
...........................
22
11. RS232 PC serial interface.................................................................................
..................
22
12. Optional Type K Temp. probe.................................................................................
24
13. PATENT.........................................................................................................................
24

1. FEATURES
* Humidity/Temp., Dew point ( Humidity ), Wet bulb (
Humidity ), Type K/J thermometer, 4 kinds
measurement are combined into one meter, intelligent
and professional.
* Type K, Type J thermocouple thermometer.
* Fast humidity measuring response time.
* Real time SD memory card Datalogger, it Built-in Clock
and Calendar, real time data recorder , sampling time set
from 1 second to 3600 seconds.
* Manual datalogger is available ( set the sampling
time to 0 ), during execute the manual datalogger
function, it can set the different position ( location ) No.
( position 1 to position 99 ).
* Innovation and easy operation, computer is not
need to setup extra software, after execute
datalogger, just take away the SD card from the
meter and plug in the SD card into the computer,
it can down load the all the measured value with
the time information ( year/month/date/
hour/minute/second ) to the Excel directly, then
user can make the further data or graphic
analysis by themselves.
* SD card capacity : 1 GB to 16 GB.
* LCD with green light backlight, easy reading.
* Can default auto power off or manual power off.
* Data hold, record max. and min. reading.
* Microcomputer circuit, high accuracy.
* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.
* RS232/USB PC COMPUTER interface.
* Separate probe, easy for operation of different
measurement environment.
1

2. SPECIFICATIONS
2-1 General Specifications
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 52 mm x 38 mm
LCD with green backlight ( ON/OFF ).
Measurement Humidity/Temp. : %RH/℃or ℉.
Unit Dew point ( Humidity ) : ℃or ℉.
Wet bulb ( Humidity ) : ℃or ℉.
Type K/J thermometer : ℃or ℉.
Datalogger Auto 1 second to 3600 seconds
Sampling Time @ Sampling time can set to 1 second,
Setting range but memory data may loss.
Manual Push the data logger button
once will save data one time.
@ Set the sampling time to
0 second.
@ Manual mode, can also select the
1 to 99 position ( Location ) no.
Memory Card SD memory card. 1 G to 16 G.
Advanced * Set clock time ( Year/Month/Date,
setting Hour/Minute/ Second )
* Set sampling time
* Auto power OFF management
* Set beep Sound ON/OFF
* Decimal point of SD card setting
* SD memory card Format
*Set temperature unit to ℃or ℉
* Set thermometer type to Type K or Type J
Temperature Automatic temp. compensation for the
Compensation humidity function and the type K/J
thermometer.
2

Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
of Display
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
( UM3, AA ) x 6 PCs, or equivalent.
*DC 9V adapter input. ( AC/DC power
adapter is optional ).
Power Current Normal operation ( w/o SD card save
data and LCD Backlight is OFF) :
Approx. DC 3.5 mA.
When SD card save the data but and
LCD Backlight is OFF) :
Approx. DC 28 mA.
* If LCD backlight on, the power
consumption will increase approx.
12 mA.
Weight 489 g/1.08 LB.
Dimension 177 x 68 x 45 mm
(7.0 x 2.7x 1.9 inch)
Standard *
Instruction manual..........................................
1 PC
Accessories *
Humidity/Temp. probe............................................
1 PC
Included *
Soft carrying case ( CA-05A )..................................
1 PC
3

Optional SD Card ( 4 GB )
Accessories Type K thermocouple probe.
AC to DC 9V adapter.
USB cable, USB-01.
RS232 cable, UPCB-02.
Data Acquisition software,SW-U801-WIN.
Hard carrying case, CA-06
2-2 Electrical Specifications (23±5 ℃
℃
℃
℃)
Humidity/ Temperature
Range 5 % to 95 % R.H.
Humidity Resolution 0.01 % R.H.
Accuracy ±2% RH
±2% RH ±2% RH
±2% RH
@ 20 %RH to 80 % RH.
@ 10 ℃to 40 ℃.
Range 0 ℃to 50 ℃,32 ℉to 122 ℉.
Temperature Resolution 0.01 degree
Accuracy ℃±0.5 ℃.
@ 5 ℃to 35 ℃℉±1.0 ℉.
Dew Point ( Humidity )
℃Range -25.3 ℃to 48.9 ℃
Resolution 0.01 ℃
℉Range -13.5 ℉to 120.1 ℉.
Resolution 0.01 ℉.
Remark :
* Dew Point display value is calculated from the
Humidity/Temp. measurement automatically.
* The Dew Point accuracy is sum accuracy value of
Humidity & Temperature measurement..
4

Wet bulb ( Humidity )
℃Range -21.6 ℃to 50.0 ℃
Resolution 0.01 ℃
℉Range -6.9 ℉to 122.0 ℉.
Resolution 0.01 ℉.
Remark :
* Wet bulb display value is calculated from the
Humidity/Temp. measurement automatically.
* The Welt bulb accuracy is sum accuracy value of
Humidity & Temperature measurement..
Type K/J thermometer
Sensor Resolution Range Accuracy
Type
Type K 0.1 ℃-50.0 to 1300.0 ℃± ( 0.4 % + 0.5 ℃)
-50.1 to -100.0 ℃± ( 0.4 % + 1 ℃)
0.1 ℉-58.0 to 2372.0 ℉± ( 0.4 % + 1 ℉)
-58.1 to -148.0 ℉± ( 0.4 % + 1.8 ℉)
Type J 0.1 ℃-50.0 to 1200.0 ℃± ( 0.4 % + 0.5 ℃)
-50.1 to -100.0 ℃± ( 0.4 % + 1 ℃)
0.1 ℉-58.0 to 2192.0 ℉± ( 0.4 % + 1 ℉)
-58.1 to -148.0 ℉± ( 0.4 % + 1.8 ℉)
@ Above specification tests under the environment RF Field Strength
less than 3 V/M & frequency less than 30 MHz only.
5

3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display 3-11 Reset Button
3-2 Power Button ( Backlight Button ) 3-12 DC 9V Power Adapter Input Socket
3-3 Hold Button 3-13 Battery Compartment/Cover
3-4 REC Button 3-14 Battery Cover Screws
3-5 ▲Button 3-15 Stand
3-6 ▼Button ( FUNCTION Button) 3-16 Tripod Fix Nut
3-7 TIME Button (SET Button ) 3-17 Probe Plug ( Humidity/Temp. )
3-8 Enter Button (Logger Button) 3-18 Probe Handle ( Humidity/Temp. )
3-9 SD card socket 3-19 Probe head ( Humidity & Temp. )
3-10 RS-232 Output Terminal 3-20 Type K/J thermometer socket
3-21 Probe ( Humidity/Temp. ) input socket
6

4. MEASURING PROCEDURE
4-1 Function selection
1) Turn on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ) > 1.5 seconds continuously.
*
Pressing the " Power Button " ( 3-2, Fig. 1 )
continuously and > 1.5 seconds again will turn off the
meter.
2) The meter can select 6 kind function as :
a. Humidity/Temp, Dew , Wet
b. Type K/J Thermometer,Humidity/Temp.
c. Type K/J Thermometer
d. Humidity/Temp.
e. Dew point ( Humidity )
f. Wet bulb ( Humidity )
Pressing the " Function Button " ( 3-3, Fig. 1 )
continuously ( not release the button ), the Display
will show the following text in sequence :
Until the Display show the desired mode ( Function ),
just release the " Function Button " ( 3-3, Fig. 1 ), the
meter will execute this function with default.
7

3) Humidity / Temperature and Dew point and Wet bilb measurement
a. Plug the " Probe Plug " ( 3-17, Fig. 1 ) into the " Probe
Input Socket " ( 3-21, Fig. 1 ).
b. Power on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ).
c. Function select to " Humidity/Temp,Dew,Wet " measurement. ,
the LCD shows the unit " %RH " and " Temp." Dew " Wet "
℃or ℉" the at same time and measured value will show on the
display ( upper display is Humidity and Dew value, the lower
display is the temperature and Wet value ) .
Remark :
The meter Temp. display unit is defaulted to " ℃".
If intend to let the meter's temperature unit default
to " ℉" , then please refer chapter 7-7 ( page 20 ).
4) Type K/J thermometer and Humidity / Temperature measurement
a. Function select to " Type K/J thermometer "and" Humidity / Temp.
b. install the Humidity " Probe Plug " ( 3-17),into the " Probe
Input Socket " ( 3-21, Fig. 1 ).
c. Plug the Thermocouple Temp. Probe ( Type K Temp.
probe or Type J Temp. probe, optional ) into " Type
K/J Probe Input Socket " ( 3-20, Fig. 1 )
The Display will show the Type K orJ thermometer and
Humidity / Temperature measuring value .
d. If the Display show the indicator " K ", it is ready
for Type K thermometer.
If the Display show the indicator " J ", it is ready
for Type J thermometer.
Remark :
The meter is defaulted to " Type K thermometer ".
If intend to select the " Type J thermometer with
default , please refer chapter 7-8 ( page 20 ).
8

5) Humidity and Temperature measurement
a. Plug the " Probe Plug " ( 3-17, Fig. 1 ) into the " Probe
Input Socket " ( 3-20, Fig. 1 ).
b. Power on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ).
c. Function select to " Humidity/Temp. " measurement. ,
the LCD shows the unit " %RH " and " Temp. " ℃or ℉" at
the same time and measured value will show on the
display ( upper display is Humidity value, the lower
display is the temperature value ) .
Remark :
The meter Temp. display unit is defaulted to " ℃".
If intend to let the meter's temperature unit default
to " ℉" , then please refer chapter 7-7 ( page 20 ).
6) Dew point ( Humidity ) measurement
a. Function select to " Dew point ( Humidity ) "
measurement.
b..
Other procedures same as the " Humidity/Temp. "
measurement.
c. The LCD will shows the Dew point value and the
display will show small text "Dew point "and " ℃or ℉" .
7) Wet bulb ( Humidity ) measurement
a. Function select to " Wet bulb ( Humidity ) "
measurement.
b..
Other procedures same as the " Humidity/Temp. "
measurement.
c. The LCD will shows the Wet bulb value and the
display will show samll text " Wet bulb " and " ℃or ℉".
4-2 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
display a " HOLD " symbol.
Press the " Hold Button " once again will release the data
hold function.
9

4-3 Data Record ( Max., Min. reading )
1) The data record function records the maximum and
minimum readings. Press the " REC Button " ( 3-4, Fig.
1 ) once to start the Data Record function and there
will be a " REC. " symbol on the display.
2) With the " REC. " symbol on the display :
a) Press the " REC Button " ( 3-4, Fig. 1 ) once, the "
REC. MAX. " symbol along with the maximum value
will appear on the display.
b) Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC. MIN. " symbol along with the minimum value
will appear on the display.
c) To exit the memory record function, just press the
" REC " button for 1.5 seconds at least. The display will
revert to the current reading.
4-4 LCD Backlight ON/OFF
After power ON, the " LCD Backlight " will light
automatically. During the measurement, press the "
Backlight Button " ( 3-2, Fig. 1 ) once will turn OFF the
" LCD Backlight ".
Press the " Backlight Button " once again will turn ON the
" LCD Backlight " again.
10

5. DATALOGGER
5-1 Preparation before execute datalogger function
a. Insert the SD card
Prepare a " SD memory card " ( 1 G to 16 G, optional ),
insert the SD card into the " SD card socket " ( 3-9, Fig. 1).
The front panel of the SD card should face against the
the down case.
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 7-6 ( page 20 ).
c. Time setting
If the meter is used at first time, it should to adjust the
clock time exactly, please refer chapter 7-1 ( page 17 ).
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 19.
5-2 Auto Datalogger ( Set sampling time ≧
≧
≧
≧1 second )
a. Start the datalogger
Press the " LOGGER Button ( 3-8, Fig. 1 ) >1.5 seconds , the LCD
will show the text " LOGGER ", the " LOGGER " will flashing at the
same time the measuring data along the time information will be
saved into the memory circuit.
11

Remark :
*
How to set the sampling time, refer to Chapter 7-2,
page 18 .
*
How to set the beeper sound is enable, refer to
Chapter 7-4, page 19.
b. Pause the datalogger
During execute the Datalogger function , if press the
" Logger Button " ( 3-8, Fig. 1 ) once will pause the
Datalogger function ( stop to save the measuring data
into the memory circuit temporally ). In the same time
the text of " LOGGER " will stop flashing.
Remark :
If press the " Logger Button " ( 3-8, Fig. 1 ) once again
will execute the Datalogger again, the text of " LOGGER " will
flashing .
c.. Finish the Datalogger
During pause the Datalogger, press the " Logger Button "
( 3-8, Fig. 1 ) continuously at least 1.5 seconds, the " LOGGER "
indication will be disappeared and finish the Datalogger.
5-3 Manual Datalogger ( Set sampling time = 0
second )
a. Set sampling time is to 0 second
Press the " Logger Button " ( 3-8, Fig. 1 ) >1.5 seconds , the LCD
will show the text " LOGGER ", then press the " Logger Button " (
3-8, Fig. 1 ) once, the " LOGGER " will flashing once and Beeper
will sound once, at the same time the measuring data
along the time information will be saved into the
memory circuit. The lower Display will show the
Position ( Location ) no. and saved into the SD card too.
12

Remark :
During execute the Manual Datalogger, It can use the
" ▲Button " ( 3- 5 , Fig. 1) or " ▼Button " ( 3-6, Fig. 1 ) to
set the measuring position (1 to 99, for example room 1 to room 99 )
to identify the measurement location , the Top Display
will show P x ( x = 1 to 99 ).
b. Finish the Datalogger
Press the " Logger Button " ( 3-8, Fig. 1 ) continuously at
least two seconds, the " LOGGER " indication will be
disappeared and finish the Datalogger.
5-4 Check time and sampling time information
During the normal measurement ( not execute the
Datalogger ), If press " Time Button " ( 3-7, Fig. 1
) once , the LCD display will present the time and sampling time
information of Year, Month/Date, Hour/Minute and second,
and show "sampling time:____s"
5-5 SD Card Data structure
1) When the SD card is used into the meter, the SD card
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\ ........
13

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.
14

6. Saving data from the SD card
to the computer ( EXCEL software )
1) After execute the Data Logger function, take away the
SD card out from the " SD card socket " ( 3-9, Fig. 1 ).
2) Plug in the SD card into the Computer's SD card slot
( if your computer build in this installation ) or
insert the SD card into the " SD card adapter ". then
connect the " SD card adapter " into the computer.
3) Power ON the computer and run the " EXCEL software ".
Down load the saving data file ( for example the file
name : HTC01001.XLS, HTC01002.XLS ) from the SD
card to the computer. The saving data will present into
the EXCEL software screen ( for example as following
EXCEL data screens ) , then user can use those EXCEL
data to make the further Data or Graphic analysis
usefully.
EXCEL data screen (for example )
15

EXCEL graphic screen (for example )
16

7. ADVANCED SETTING
Under do not execute the Datalogger function,
press the " SET Button " ( 3-7, Fig. 1 ) continuously at
least two seconds will enter the " Advanced Setting " mode.
then press the " SET Button " ( 3-7, Fig. 1 ) once a while
display will show :
DATE...... Set clock time ( Year/Month/Date, Hour/Minute/
Second )
SP-T....... Set sampling time ( Hour/Minute/Second )
POFF....... Auto power OFF management
BEEP........
Set beeper sound ON/OFF
DEC........ Set SD card Decimal character
SD- F..... SD memory card Format
T-CF....... Select the Temp. unit to ℃or ℉
TYPE...... Select the Thermometer to Type K or Type J
Remark :
During execute the " Advanced Setting " function,
if press " Power Button " ( 3-2, Fig. 1 ) once will exit
the " Advanced Setting " function, the LCD will
return to normal screen.
7-1 Set clock time ( Year/Month/Date,
Hour/Minute/ Second )
When the lower display show " DATE "
1) Press the " Enter Button " ( 3-8, Fig. 1 ) once,
Use the " ▲Button " ( 3-5, Fig. 1 ) or " ▼Button "
(3-6, Fig. 1 ) to adjust the value ( Setting start from
Year value ). After the desired value is set, press the
" Enter Button " ( 3-8, Fig. 1 ) once will going to
next value adjustment ( for example, first setting
value is Year then next to adjust Month, Date, Hour,
Minute, Second value ).
17

2) After set all the time value ( Year, Month, Date, Hour,
Minute, Second ), the screen will
jump to " SD card Decimal character " setting screen (
Chapter 7-5 ).
Remark :
After the time value is setting, the internal clock will
run precisely even Power off if the battery is under
normal condition ( No low battery power ).
7-2 Set sampling time ( Seconds )
When the lower display show " SP-T "
1) Use the " ▲Button " ( 3-5, Fig. 1 ) or " ▼Button " (
3-6, Fig. 1 ) to adjust the value ( 1 to 3600 seconds ).
Remark :
Can use press "Hold Buttom (3-3 Fig. 1) once,to selsct Top lcd "
" or " " , if choice " " press "▲Button "or"▼Button"
to adjust the value a digits increase or decrease, if choice" "
press "▲Button "or"▼Button " to adjust the value ten digits
increase or decrease .
2) After the Sampling value is selected, press the "
Enter Button " ( 3-8, Fig. 1 ) will save the setting
function with default.
7-3 Auto power OFF management
When the lower display show " POFF "
1) Use the " ▲Button " ( 3-5, Fig. 1 ) or " ▼Button "
(3-6, Fig. 1 ) to select the upper value to " YES " or
" NO ".
YES - Auto Power Off management will enable.
NO - Auto Power Off management will disable.
2) After select the upper text to " YES " or " NO ", press the
" Enter Button " ( 3-8, Fig. 1 ) will save the setting
function with default.
18