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