Lutron Electronics HT-3015 User manual

Temp., Dew point, RS232
HUMIDITY METER
Model : HT-3015
Your purchase of this HUMIDITY METER marks a step forward
for you into the field of precision measurement. Although this
METER is a complex and delicate instrument, its durable structure
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..................................
.
5
3-1 Display...........................................................................5
3-2 Power Button.................................................................
.
5
3-3 Hold Button ( Esc Button )..............................................
.
5
3-4 REC Button ( Enter Button )............................................
.
5
3-5 Function Button ( Send Button )......................................
.
5
3-6 Set Button ( Logger Button )...........................................
.
5
3-7 Battery Compartment/Cover............................................5
3-8 RS-232 Output Terminal..................................................5
3-9 Probe Input Socket ........................................................5
3-10 Probe Plug .....................................................................5
3-11 Probe handle..................................................................
.
5
3-12 Probe head ( Humidity & Temperature )...........................5
4. GENERAL MEASURING PROCEDURE...........................6
4-1 Humidity and Temperature measurement...........................6
4-2 Dew point measurement...................................................
.
6
4-3 Data Hold.........................................................................7
4-4 Data Record (Max, Min reading)........................................
.
7
4-5 Data Logger.....................................................................
.
8
5. ADVANCED MEASURING PROCEDURE........................9
5-1 Change the Temp , unit.............................................℃℉ 11
5-2 Change the data logger sampling time...............................
.
11
5-3 To show the balance data numbers in the memory.............
.
12
5-4 Clear the existing saving data from the memory..................13
5-5 Auto power ON/OFF..........................................................13
6. HOW TO SEND THE DATA OUT FROM THE METER.....
.
14
7. RS232 PC SERIAL INTERFACE...................................
.
15
8. BATTERY REPLACEMENT..........................................
.
17

1. FEATURES
*Humidity + Temperature + Dew point are combined
into one meter, intelligent and professional.
*0.01 %RH resolution for the humidity reading,
0.01 degree resolution for the Temp. reading.
*Fast humidity measuring response time.
*High accuracy and high precision.
*Dew point measurement.
*Manual and auto manual data logger.
*Data logger function with flexible sampling time
selection, can save max. 1000 reading data with
recall.
*Just few panel buttons, easy operation.
*Microprocessor circuit assures maximum possible
accuracy, provides special functions and features.
*Large LCD with two display, easy readout.
*Heavy duty & compact housing case, designed
for easy carry out & operation.
*Records Maximum and Minimum readings with Recall.
*Auto shut off saves battery life.
*Data hold function for freezing the desired value
on display.
*RS 232 PC serial interface.
*Show the humidity & temperature values on the
LCD display at same time.
*Built-in low battery indicator.
Wide humidity & temp. measuring range.
*Separate humidity & temp. probe, easy operation. &
remote measurement.
1

2. SPECIFICATIONS
2-1 General Specifications
Circuit Custom one-chip of microprocessor LSI
circuit.
Display LCD size : 61 mm x 35 mm
dual function LCD display.
Measurement Humidity : %RH ( Relative Humidity )
Unit Temperature : or .℃℉
Dew point : or .℃℉
Response Time 5 to 30 seconds typically.
@ Reach the 85% reading value
Temperature Automatic temp. compensation for the
Compensation humidity function.
Sampling Time Manual Push the data logger button
of Data Logger once will save data one time.
Auto 1, 2, 10, 30, 60, 600, 1800,
3600 seconds.
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 0.8 second.
Power off Auto shut off saves battery life or manual
off by push button.
Data Output RS 232 PC serial interface.
Operating 0 to 50 .℃
Temperature
Operating Main instrument : Less than 85% R.H.
Humidity Probe : 0 to 95 %RH.
Power Supply 006P DC 9V battery
( Alkaline or Heavy duty type ).
2

Power Current Approx. DC 8 mA.
Weight 306 g/0.67 LB.
@ Battery is included.
Dimension Main instrument :
180 x 72 x 32 mm
(7.1 x 2.8 x1.3 inch)
Humidity Sensor Probe :
197 mm ( 7.8 inch ) in length.
Accessories Instruction manual.....................
.
1 PC
Included Humidity probe..........................
.
1 PC
Carrying case.............................1 PC
Optional RS232 cable, UPCB-01
Accessories Data Acquisition software, SW-U801-WIN
Data Logger software, SW-DL2005
3

2-2 Electrical Specifications (23±5 )℃
Humidity/ Temperature
Range 10 % to 95 % R.H.
Humidity Resolution 0.01 % R.H.
Accuracy 70% RH :≧± (3% reading + 1% RH).
< 70% RH :
±3%RH.
Range 0 to 50 ,32 to 122 .℃℃℉ ℉
Temperature Resolution 0.01 degree
Accuracy - ± 0.8 .℃℃
- ± 1.5 .℉℉
Dew Point
℃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..
@
Above specification tests under the environment RF
Field Strength less than 3 V/M & frequency less than
30 MHz only.
4

3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display
3-2 Power Button
3-3 Hold Button ( Esc Button )
3-4 REC Button ( Enter Button )
3-5 Function Button ( Send Button )
3-6 Set Button ( Logger Button )
3-7 Battery Compartment/Cover
3-8 RS-232 Output Terminal
3-9 Probe Input Socket
3-10 Probe Plug
3-11 Probe handle
3-12 Probe head ( Humidity & Temperature )
5

4. GENERAL MEASURING
PROCEDURE
The meter default value are :
*The temperature reading unit is .℃
*The sampling time of data logger function is
2 seconds.
4-1 Humidity and Temperature measurement
1)Plug the " Probe Plug " ( 3-10, Fig. 1 ) into the " Probe
Input Socket " ( 3-9, Fig. 1 ).
2)Power on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ), the LCD shows the unit " %RH " & " "℃
at the same time and measured value will show on
the display ( upper display is Humidity value, the
lower display is the temperature value ) .
3)The meter Temp. display unit is defaulted to " ". If℃
intend to let the meter's temperature unit default to " "℉
, then please refer section 5-1 ( page 11 ).
4-2 Dew point measurement
The procedures of " Dew point measurement " are same
as the above " 4-1 Humidity and Temperature
measurement " except select the " Dew point " function
by pressing the " Function Button " ( 3-5, Fig. 1 ) once,
the LCD will show the unit " DEW " & " ( or ).℃℉
The upper display show the Dew point value, the lower
display show the temperature value.
6

4-3 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.
4-4 Data Record ( Max., Min. reading )
* 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.
* 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.
If intend to delete the maximum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then the
display will show the " REC. " symbol only & execute
the memory function continuously.
b)Press the " REC Button " ( 3-4, Fig. 1 ) again, the
" REC. MIN. " symbol along with the minimum value
will appear on the display.
If intend to delete the minimum value, just press
the " Hold Button " ( 3-3, Fig. 1 ) once, then
the display will show the " REC. " symbol only &
execute the memory function continuously.
c)To exit the memory record function, just press the
" REC " button for 2 seconds at least. The display will
revert to the current reading.
7

4-5 Data Logger
The data logger function can save 1000
measuring data ( Humidity/Temp. value or
Dew point/Temp. value )
The data logger procedures are as following :
a)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.
b)Auto Data Logger ( Sampling time can select to
1, 2, 10, 30, 60, 600, 1800, 3600 seconds )
Press the " Logger Button " ( 3-6, Fig. 1 ) once to
start the Data Logger function. The upper display
will show the sampling time in seconds ( For
example, 1, 2, 10, 30, 60, 600, 1800, 3600 ) once a
while then revert to the normal display screen. In
the same the top display will show the marker " A ",
the marker " A " will be flashed per sampling time.
Now the Date Logger function is executed.
Manual Data Logger ( Sampling time set to 0
second )
Press the " Logger Button " ( 3-6, Fig. 1 ) once will
save the data one time into the memory, at the
same time the marker " A " will be flashed once
a while.
8