Lutron Electronics TM-946 Manuel utilisateur
T1, T2, T3, T4, T1-T2, Type J/K, Pt 100 ohm
4 CHANNELS
THERMOMETE
R
Model : TM-946
TABLE OF CONTENTS
1. FEATURES.................................................................
.
1
2. SPECIFICATIONS........................................................1
3. FRONT PANEL DESCRIPTION......................................
.
5
4. GENERAL MEASURING PROCEDURE............................
.
6
4-1 Type K measurement.......................................... 6
4-2 Type J measurement.............................................7
4-3 Pt 100 ohm measurement.................................... 7
4-4 T1-T2 measurement..............................................8
4-5 Data Hold.............................................................8
4-6 Data Record (Max, Min reading).............................8
4-7 Data Logger..........................................................9
5. ADVANCED MEASURING PROCEDURE..........................11
5-1 Change the data logger sampling time....................11
5-2 Clear the existing saving data from the memory......13
6. SEND THE DATA OUT FROM THE METER.....................14
7. OFFSET ADJUSTMENT................................................ 16
7-1 Type K, Type J offset adjustment...........................16
7-2 Pt 100 ohm offset adjustment................................17
8. AUTO POWER OFF DISABLE........................................18
9. RS232 PC SERIAL INTERFACE.....................................
.
19
10. BATTERY REPLACEMENT...........................................21
11. OPTIONAL ACCESSORIES..........................................21
1. FEATURES
* Type K/J, Pt 100 ohm, measurement with 4 display.
* Show 4 channels display on the LCD at the same time.
* Type K : -199.9 to 1370 .℃
* Type J : -199.9 to 1210 .℃
* Pt 100 ohm : -199.9 to 850.0 .℃
* / , 0.1 degree/1 degree.℃℉
* 4 channels ( T1, T2, T3, T4 ), T1-T2.
* Microcomputer circuit provides intelligent function
and high accuracy.
* Manual and auto data logger, with flexible sampling
time selection, can save max. 16,000 reading data.
* Records Maximum and Minimum readings with recall.
* Data hold function for freezing the desired value.
* Offset adjustment for the Type K and Type J measurement.
* Offset adjustment for the Pt 100 measurement.
* Measuring unit can select to or .℃℉
* DC 1.5V ( UM-4, AAA ) battery x 6 PCs.
* Build in the input socket for DC 9V power adapter.
* RS232 PC serial interface.
* Few panel buttons, easy operation.
* Built-in low battery indicator.
* Heavy duty & compact housing case.
2. SPECIFICATIONS
2-1 General Specifications
Circuit Custom one-chip of microprocessor LSI
circuit.
1
Display LCD size : 52 mm x 38 mm
*
Show 4 channels display on the
display at the same time.
Display Unit , .℃℉
Resolution 0.1/1,0.1/1 .℃℃ ℉ ℉
Channels T1, T2, T3, T4, T1-T2.
Sensor type Type K thermocouple probe.
Type J thermocouple probe.
PT 100 ohm probe
*
Cooperate with an 0.00385 alpha
coefficient, meet DIN IEC 751.
Sampling Time Manual Push the data logger button
of Data Logger once will save data one time.
* Set the sampling to 0 second.
Auto 1 second to 59 minutes and
59 seconds.
Data Logger Max. 16,000-point Data logger
number Type K, Type J, 4 channels ( T1, T2, T3, T4 )
* Memory occupy 4 data point space.
Pt 100 ohm, 2 channels ( T1,T2 )
* Memory occupy 2 data point space.
Temperature Automatic temp. compensation for the
Compensation cold junction both type K/J thermometer
Linear Linear Compensation for the full range.
Compensation
Offset, Span Available for advanced calibration
Adjustment procedure.
Probe Input Type K, Type J :
Socket 2 pin thermocouple socket.
Pt 100 ohm : Ear phone socket.
2
Over Indication
Show " ".
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time Approx. 1 second.
of display
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 Less than 80% R.H.
Humidity
Power Supply DC 1.5 V battery ( UM4, AAA ) x 6 PCs,
or equivalent.
DC 9V adapter input.
* AC/DC power adapter is optional.
Power Current Approx. DC 9 mA.
Weight 310 g/0.68 lb.
Dimension 174 x 68 x 42 mm ( 6.9 x 2.7 x 1.7 inch ).
Accessories Instruction manual....................1 PC
Included
Optional * Type K thermocouple probe.
Accessories TP-01, TP-02A. TP-03, TP-04
* Pt 100 ohm probe, TP-101.
* AC to DC 9V adapter.
* RS232 cable, UPCB-02.
*USBcable,USB-01
* Data Acquisition software, SW-U801
* Data Logger software, SW-DL2005.
* Soft carrying case, CA-05A.
* Hard carrying case, CA-06.
3
2-2 Electrical Specifications (23±5 )℃
Type K, Type J thermocouple
Sensor Reso- Range Accuracy
Type lution
Type K 1 ℃1000 to 1370 ℃± ( 0.5 % + 1 )℃
0.1 ℃-199.9 to 999.9 ℃
1 ℉1000 to 2498 ℉± ( 0.5 % + 1.8 )℉
0.1 ℉-199.9 to 999.9 ℉
Type J 1 ℃1000 to 1210 ℃± ( 0.5 % + 1 )℃
0.1 ℃-199.9 to 999.9 ℃
1 ℉1000 to 2210 ℉± ( 0.5 % + 1.8 )℉
0.1 ℉-199.9 to 999.9 ℉
*
Accuracy value is specified for the meter only.
*
Type K probe TP-01 TP-02A, TP-03. TP-04 are the
optional accessories.
PT 100 ohm
Resolution Range Accuracy
0.1 ℃-199.9 to 850.0 ℃± ( 0.4 % + 1 )℃
1 ℉1000 to 1562 ℉± ( 0.4 % + 1.8 )℉
0.1 ℉-199.9 to 999.9 ℉
1 ℉-200 to -327 ℉
*
Pt 100 ohm probe TP-101 is the optional accessory.
*
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/ESC button
3-4 REC/Enter button
3-5 Function button ( button, L button )▲
3-6 / button ( Send, CLR button )℃℉
3-7 T1-T2 button ( button, R button )▼
3-8 Lo
gg
er button ( Sample time, Offset button )
3-9 T1,T2,T3,T4 input socket ( Type K, Type J )
3-10 PT1 input socket ( Pt 100 ohm )
3-11 PT2 input socket ( Pt 100 ohm )
3-12 RS-232 output terminal
3-13 DC 9V adapter socket
3-14 Tripod Fix Nut
3-15 Battery Cover Screws
3-16 Battery compartment/Cover
3-17 Stand 5
`
4. GENERAL MEASURING
PROCEDURE
4-1 Type K measurement
1)Power on the meter by pressing the " Power button "
( 3-2, Fig. 1 ) once ( > 1 sec ).
* After already power on the meter, pressing the
" Power button " once ( > 1 sec ) will turn off
the meter.
2)Meter default measurement function is Type K, the
display will not show any indicator.
*
For the Type J measurement, the LCD will show
" J " indicator.
*
For the Pt 100 ohm measurement, the LCD will show
" Pt " indicator.
3)Select the temperature unit to , by pressing the℃℉
" / button " ( 3-6, Fig. 1 )℃℉
* The LCD will show " " ( ) unit.℃℉
* The selecting unit will be saved into the memory
permanently. If meter power off and on again,
the original selecting unit will present automatically.
6
4)Insert the Type K probes into the " T1, T2, T3, T4 input
socket " ( 3-9, Fig. 1 ).
The LCD will show the 4 channels ( T1, T2, T3, T4 )
temperature value at the same time.
* If the certain channels do not insert the temperature
probes, the relative channel display will show over
range " - - - - - ".
4-2 Type J measurement
All the measuring procedures are same as the Type K
( section 4-1 ) except to select the function to " Type J "
by pressing the " Function button " ( 3-5, Fig. 1 ) once
until the up LCD display show " J " indicator.
4-3 Pt 100 ohm measurement
All the measuring procedures are same as the Type K
( section 4-1 ) except :
1)Pressing the " Function button " ( 3-5, Fig. 1 )
until the right down LCD display show " Pt "
Pt
2)Insert the Pt 100 ohm probe to
PT1 input socket ( 3-10, Fig. 1 )
PT2 input socket ( 3-11, Fig. 1 )
7
* The Pt 100 ohm measurement only allow
max. two channels ( two probes ) input.
4-4 T1-T2 measurement
If the meter already insert two probes :
Type K, Type J : T1, T2 input socket
Pt 100 ohm : PT1, PT2 input socket
Pressing the " T1-T2 button " ( 3-7, Fig. 1 ), display will
show the difference temperature value between T1, T2
( PT1, PT2 ) as :
T1 ℃℃
T1 26.2 1-2
T2 ℃℃
T2 26.6 -0.4 T1-T2 value
4-5 Data Hold
During the measurement, press the " Hold Button " ( 3-3,
Fig. 1 ) once will hold the measured value & the LCD will
show " D.H. " symbol.
Press the " Hold Button " once again will release the data
hold function.
4-6 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.
8
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