Lutron Electronics TM-946 Manuale utente

T1, T2, T3, T4, T1-T2, Type J/K, Pt 100 ohm

4 CHANNELS

THERMOMETE

Model : TM-946

TABLE OF CONTENTS

1. FEATURES.................................................................

2. SPECIFICATIONS........................................................1

3. FRONT PANEL DESCRIPTION......................................

4. GENERAL MEASURING PROCEDURE............................

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.....................................

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.

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.

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.

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.

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

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.

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 "

2)Insert the Pt 100 ohm probe to

PT1 input socket ( 3-10, Fig. 1 )

PT2 input socket ( 3-11, Fig. 1 )

* 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.

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