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

Memory full
If Press the " Logger Button " ( 3-6, Fig. 1 ) once,
both the mark " A ", upper display and lower display
are flashed, it indicate the memory data already over
1000 no. and the memory is full.
c)During the Data Logger function is executed, press the "
Logger Button " ( 3-6, Fig. 1 ) once will stop to execute
the data logger function, the mark " A " will disappeared.
If press the " Logger Button " ( 3-6, Fig. 1 ) once again
will continuous the Data Logger function.
Remark :
1
)
If intend to change the data logger sampling time,
please refer section 5-2, page 11.
2
)
If intend to know the space of balance data numbers
into the memory IC, please refer section 5-3, page 12.
3
)
If intend to clear the saving data from the memory
please refer section 5-4, page 13.
5. ADVANCED MEASURING
PROCEDURE
When execute the following Advanced
Measuring Procedure should cancel the " Hold
function " and the " Record function " first. The
display will not show the " HOLD " and the " REC "
marker.
9

a.Hold the " Set Button " ( 3-6, Fig. 1 ) at least two
seconds until the lower display show " COde ", then
release the " Set Button ", the upper display will show
" 1000 ".
*1000 is the password code that allow to execute the
Advanced Measuring Procedure following.
After display show " COde 1000 ", push the " Enter
Button " ( 3-4, Fig. 1 ) once will go to the following b.
procedures.
*If push the " ESC Button " ( 3-3, Fig. 1 ) will escape
the selecting function and return to the normal
measuring display.
b.One by one to press the " Enter Button " ( 3-4, Fig. 1 )
once a while to select the five main function that show
on the lower display as :
.......℉Change the Temp , unit℃℉
SEC...... Change the data logger sampling time
Cnt.......
.
To show the balance data numbers in the memory
CLr.......
.
Clear the existing saving data from the memory
OFF......
.
Auto power ON/OFF management
10

5-1 Change the Temp , unit℃℉
Use the " Set Button " to select the main function to " ",℉
then one by one to press the " Function Button " ( 3-5,
Fig. 1 ) a while will determine the default Temp. unit to
or℃℉
@Press the " Function Button ", if the upper display value
show " 0 ", the default Temp. unit is ℃
@Press the " Function Button ", if the upper display value
show " 1 ", the default Temp. unit is .℉
After the function is determined, press the " Enter Button "
( 3-4, Fig. 1 ) to confirm and save the selection data into
memory IC permanently. Press the " Esc Button " ( 3-3.
Fig. 1 ) will revert to normal display screen.
5-2 Change the data logger sampling time
Use the " Set Button " to select the main function to "
SEC ", ( SECOND ) then one by one to press the "
Function Button " ( 3-5, Fig. 1 ) a while will determine
the default Data Logger sampling time value ( seconds ).
@Press the " Function Button ", if the upper display value
show " 0 ", the Data Logger function is manual operation.
@Press the " Function Button ", if the upper display value
show " 1 ", the default Data Logger sampling time is
1 second.
@Press the " Function Button ", if the upper display value
show " 2 ", the default Data Logger sampling time is
2 seconds.
11

@Press the " Function Button ", if the upper display value
show " 10 ", the default Data Logger sampling time is
10 seconds.
@Press the " Function Button ", if the upper display value
show " 30 ", the default Data Logger sampling time is
30 seconds.
@Press the " Function Button ", if the upper display value
show " 60 ", the default Data Logger sampling time is
60 seconds.
@Press the " Function Button ", if the upper display value
show " 600 ", the default Data Logger sampling time is
600 seconds ( 10 minutes ).
@Press the " Function Button ", if the upper display value
show " 1800 ", the default Data Logger sampling time is
1800 seconds ( 30 minutes ).
@Press the " Function Button ", if the upper display value
show " 3600 ", the default Data Logger sampling time is
3600 seconds ( 1 hour ).
After the function is determined, press the " Enter Button "
( 3-4, Fig. 1 ) to confirm save the selection data into
memory IC permanently. Press the " Esc Button " ( 3-3.
Fig. 1 ) will revert to normal display screen.
5-3 To show the balance data numbers in the
memory
Use the " Set Button " to select the main function to
" Cnt " ( count ), then the upper display will show the
balance data numbers that exist into the memory ( allow
memorize data no. ). Press the " Esc Button " ( 3-3. Fig.
1 ) will revert to normal display screen.
12

5-4 Clear the existing saving data from the memory
1)Use the " Set Button " to select the main function to
" CLr " ( CLEAR ), at the same time the upper display
will show the Data Logger counts no. that already
save into the memory.
2)Press the " Function Button " ( 3-5, Fig. 1 ) once, the
upper display will show " 0 ", if intend to clear the
existing saving data from the memory, just press the "
Enter Button " ( 3-4, Fig. 1 ) to confirm, then the
existing data will clear from the memory IC.
Remark :
Before Press the " Function Button " ( 3-5, Fig. 1 )
to confirm, it can press the " Esc Button " ( 3-3, Fig.
1 ) to exist the clear function and the data will be
not cleared.
5-5 Auto power ON/OFF
Use the " Set Button " to select the main function to
" OFF ", then one by one to press the " Function Button "
( 3-5, Fig. 1 ) a while will determine the default the
power management system is Auto Power Off enable or
disable.
@Press the " Function Button " once, if the upper display
value show " 0 ", it is not Auto Power Off management
( disable ).
@Press the " Function Button " once, if the upper display
value show " 1 ", it is the Auto Power Off management
( enable ).
13

After the function is determined, press the " Enter Button
" ( 3-4, Fig. 1 ) to save the selection function into
memory IC permanently. Press the " Esc Button " ( 3-3.
Fig. 1 ) will revert to normal display screen.
6. HOW TO SEND THE DATA OUT
FROM THE METER
1)If intend to send the data out from the meter, it
should cancel the " Hold function " and the " Record
function " first. The display will not show the " HOLD "
and the " REC " marker.
2)Press the " Send Button " ( 3-5, Fig. 1 ) at least 2
seconds until the lower display show " 232 ", then
release the button.
3)Push the " Send Button " ( 3-5, Fig. 1 ) once, then
both the upper and the lower display will flash slowly,
at the same the storage data logger data will be send
out the meter from the " RS-232 Output Terminal " (
3-8, Fig. 1 ).
4)If intend up load the data to the computer, then
should connect the RS232 cable ( optional, model :
UPCB-01) and apply the Data Logger software (
optional, Model : SW-DL2005 ).
14

7. RS232 PC SERIAL INTERFACE
The instrument has RS232 PC serial interface via a 3.5
mm terminal ( 3-8, Fig. 1 ).
The data output is a 16 digit stream which can be
utilized for user's specific application.
A RS232 lead with the following connection will be
required to link the instrument with the PC serial port.
Meter PC
(9W 'D" Connector)
Center Pin.............................. Pin 2
(3.5 mm jack plug)
Ground/shield...........................
.
Pin 5
The 16 digits data stream will be displayed in the
following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
15

Each digit indicates the following status :
D0 End Word
D1 & D8 Display reading, D1 = LSD, D8 = MSD
For example :
If the display reading is 1234, then D8 to
D1 is : 00001234
D9 Decimal Point(DP), position from right to the
left
0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D10 Polarity
0 = Positive 1 = Negative
D11 & D12 Annunciator for Display
= 01℃= 02℉% RH = 04
D13 When send the upper display data = 1
When send the lower display data = 2
D14 4
D15 Start Word
RS232 FORMAT : 9600, N, 8, 1
16

8. BATTERY REPLACEMENT
1)When the left corner of LCD display show " ", it
is necessary to replace the battery. However, in-spec.
measurement may still be made for several hours after
low battery indicator appears before the instrument
become inaccurate.
2)Slide the " Battery Cover " ( 3-7, Fig. 1 ) away from the
instrument and remove the battery.
3)Replace with 9V battery ( Alkaline or Heavy duty type )
and reinstate the cover.
4)Make sure the battery cover is secured after changing
the battery.
17
0412-HT3015