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

4 CHANNELS

THERMOMETER

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 J : -199.9 to 1210 .

℃

* / , 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.

℃ ℉

* 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

Channels

Sensor type

0.1 /1 , 0.1 /1

℉

T1, T2, T3, T4, T1-T2.

.

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

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

Accessories

Included

Optional

Accessories

174 x 68 x 42 mm ( 6.9 x 2.7 x 1.7 inch ).

Instruction manual....................1 PC

* Type K thermocouple probe.

TP-01, TP-02A. TP-03, TP-04

* Pt 100 ohm probe, TP-101.

* AC to DC 9V adapter.

* RS232 cable, UPCB-02.

* USB cable, USB-01

* Data Acquisition software, SW-U801

* Data Logger software, SW-DL2005.

* Soft carrying case, CA-05A.

* Hard carrying case, CA-06.

3

Type K, Type J thermocouple

*

*

Sensor Reso- Range

Type lution

Type K 1 ℃

1000 to 1370 ℃

0.1 ℃

-199.9 to 999.9 ℃

1 ℉

1000 to 2498 ℉

0.1 ℉

-199.9 to 999.9 ℉

Type J 1 ℃

1000 to 1210 ℃

0.1 ℃

-199.9 to 999.9 ℃

1 ℉

1000 to 2210 ℉

Accuracy

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 ℃

1 ℉

0.1 ℉

-199.9 to 850.0 ℃

1000 to 1562 ℉

-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

3-1 Display

3-2 Power button

3-3 Hold/ESC button

3-4 REC/Enter button

℃ ℉

▲

3-6 / button ( Send, CLR button )

3-7 T1-T2 button ( button, R button )

▼

3-8 Logger 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

Fig. 1

`

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.

℃ ℉

* 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

T2

T1 ℃

26.2

T2 ℃

26.6

℃

1-2

℃

-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

* When 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, 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 over seconds at least. The display will revert to the current reading.

4-7 Data Logger

* The data logger function can save 16,000 measuring data.

* The default sampling time is 2 seconds.

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.

9

b)Auto Data Logger ( Sampling time should select

to 1 second to 59 minutes and 59 seconds )

Press the " Logger button " ( 3-8, Fig. 1 ) once to start the Data Logger function. The REC symbol will flash per

2 second and the beeper will sound when save the data into the memory. Now the Date Logger function is executed.

Manual Data Logger ( Sampling time should set to 0 second )

Press the " Logger Button " ( 3-8, Fig. 1 ) once will save the data one time into the memory, at the same time the symbol " REC " will flash once and the beeper will sound.

Memory full

When execute the data logger function, if the upper left display show " FULL ", it indicate the memory data already over 16,000 no. and the memory is full.

c) During the Data Logger function is executed, press the

" Logger Button " ( 3-8, Fig. 1 ) once will stop the data logger function, the " REC " symbol will stop to flash.

If press the " Logger Button " ( 3-8, Fig. 1 ) once again will continuous the Data Logger function.

10

Note :

1) If intend to change the data logger sampling time, please refer section 5-1, page 11.

2) If intend to know the space of balance data numbers into the memory IC, please refer section 6, page 14.

3) If intend to clear the saving data from the memory please refer section 5-2, page 13.

5. ADVANCED SETTING

PROCEDURE

Before executing advanced adjustment procedures, exit the " Hold function " and the

Record " function.

5-1 Change the data logger sampling time

1)Pressing " Sample time button " ( 3-8, Fig. 1 ) continuously at least two seconds then release, the display will show : oFS SP-t

11

1)Pressing " R button " ( 3-7, Fig. 1 ) once, the display will show as example :

00

SP-t

02 minutes seconds adjustment adjustment ( flash )

* The " seconds digits " will be flashed, use the " ▲

▼ adjust the desiring seconds value ( 0 to 59 ).

* Pressing " Sampling time button " ( 3-8, Fig. 1 ) once again, the " minutes digits " will be flashed, use the "

▲ ▼ to adjust the desiring minutes value.

* Pressing " Enter button " ( 3-4, Fig. 1 ) once, both the

" seconds digits " and " minutes digits " will flashing

4 times then return to normal measuring screen,

the sampling time will save into the memory.

During the display flashing, if pressing the " ESC button " ( 3-3, Fig. 1 ) will exit the sampling time setting function, the setting value will not be saved into the memory.

12

5-2 Clear the existing saving data from the memory

1)Pressing " CLR button " ( 3-6, Fig. 1 ) continuously at least two seconds then release, the display will show :

SEnd CLr

2)Pressing " R button " ( 3-7, Fig. 1 ) once, the display will show as example :

CLr

508

n ( y ) the data no. already save into the memory

Fig. 1 ) to change the right bottom text from " n " to

" y ".

* Pressing " Enter button " ( 3-4, Fig. 1 ) once, the data no. will show zero value and flashing 4 times then return to normal measuring screen, the data no.

will be erased from the memory.

During the display flashing, if pressing the " ESC button " ( 3-3, Fig. 1 ) will exit the memory clear function.

13

6. SEND THE DATA OUT

1)To send the data out from the meter, should exit the

" Hold function " and the " Record function " at first.

2)Pressing " Send button " ( 3-6, Fig. 1 ) continuously at least two seconds then release, the display will show :

SEnd CLr

3)Pressing " L button " ( 3-5, Fig. 1 ) once, the display will show as example :

272

The data no. that are saved into the memory.

15728 Balance of empty data no.

4)Pressing " Send button " ( 3-6, Fig. 1 ) once, the display will show as following screen and send the data out.

14

XX

SEnd

Then LCD will change to the following screen.

Value will increase up from zero until reach to the existing save data no.

272

15728

The data no. that are saved into the memory.

Balance of empty data no.

* During send the data out, if pressing the " Send button "

( 3-6, Fig. 1 ) once will stop the data send out temporally.

* Pressing " Send button " ( 3-6, Fig. 1 ) once again will send the data continuously.

* After data send out, pressing the " ESC button " ( 3-3,

Fig. 1 ) will return to normal screen.

5)If intend up load the data to the computer, then

should connect the optional RS232 cable/UPCB-02 or USB cable/USB-01 and cooperate the Data Logger software ( optional,

Model : SW-DL2005 ).

15

7. OFFSET ADJUSTMENT

7-1 Type K, Type J offset adjustment

1)Set the function to Type K ( Type J ).

2)Insert the probe to the T1 input socket.

3)Pressing " Offset button " ( 3-8, Fig. 1 ) continuously at least two seconds then release, the display will show : oFS SP-t

4)Pressing " L button " ( 3-5, Fig. 1 ) once, the display will show as example

23.7

oFS

23.7

measuring adjust value value

If not insert probe to T1 input socket it will show " Err "

▲

Fig. 1 ) to adjust the desiring value on right bottom display.

* Pressing " Enter button " ( 3-4, Fig. 1 ) once, both bottom display will flashing 4 times then return to normal measuring screen and finish the offset adjustment procedures.

* The above offset adjustment for Type K ( Type J ) is valid for T1, T2, T3, T4 at the same time.

16

7-2 Pt 100 ohm offset adjustment

1)Set the function to Pt 100 ohm.

2)Insert the Pt 100 ohm probe to the PT1 ( PT2 ) input socket.

3)Pressing " Offset button " ( 3-8, Fig. 1 ) continuously at least two seconds then release, the display will show : oFS SP-t

4)Pressing " L button " ( 3-5, Fig. 1 ) once, the display will show :

Pt 1 oFS

Pt 2

5)If intend to make the offset adjustment for Pt 1, it should insert the probe to PT1 input socket. Pressing " L button "

( 3-5, Fig. 1 ) once, the display will show example as following.

6)If intend to make the offset adjustment for Pt 2, it should insert the probe to PT2 input socket. Pressing " R button "

( 3-7, Fig. 1 ) once, the display will show example as following.

23.7

oFS

23.7

measuring adjust value value

17

If not insert probe to PT1, PT2 input socket, it will show

" Err "

Fig. 1 ) to adjust the desiring value on right bottom display.

* Pressing " Enter button " ( 3-4, Fig. 1 ) once, both bottom display will flashing 4 times then return to normal measuring screen and finish the offset adjustment procedure.

* The above offset adjustment for Pt 100 ohm is valid for PT1, PT2 individually.

8. AUTO POWER OFF DISABLE

The meter is built the " Auto power shut off " to saves battery life. If any buttons not be pushed within 10 minutes, then the power will be off automatically.

If the user is not intend to execute the " Auto Power off " function, it should take the following procedures :

During the measurement, push the " Record

Button" ( 3-4, Fig. 1 ) to execute the memory record function, the auto power function will disable.

18

9. RS232 PC SERIAL INTERFACE

The instrument has RS232 PC serial interface via

" RS 232 out terminal " 3.5 mm terminal ( 3-12, 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

(3.5 mm jack plug)

PC

(9W 'D" Connector)

Center Pin................................ Pin 4

Ground/shield..........................Pin 2

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

19

Each digit indicates the following status :

D15

D14

D13

Start Word = 02

4

Function : T1, T2, T3, T4

When send the T1 value, D13 = 1

When send the T2 value, D13 = 2

When send the T3 value, D13 = 3

When send the T4 value, D13 = 4

Function : T1, T2, T1-T2

When send the T1 value, D13 = 1

When send the T2 value, D13 = 2

When send the T1-T2 value, D13 = 3

D12 & D11 Annunciator for Display

D10

℃

= 01

Polarity

℉

= 02

D9

0 = Positive 1 = Negative

Decimal Point(DP), position from right to the left

0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP

D8 to D1 Display reading, D8 = MSD, D1 = LSD.

For example :

D0

If the display reading is 1234, then D8 to

D1 is : 00001234

End Word = 0D

RS232 setting

Baud rate

Parity

Data bit no.

Stop bit

9600

No parity

8 Data bits

1 Stop bit

20

10. 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)Open the " Battery Cover " ( 3-16, Fig. 1 ) away from the instrument by loosing the " Battery

Cover Screws " ( 3-15, Fig. 1 ) and remove the batteries.

3)Replace the batteries ( DC 1.5V, UM4/AAA type, 6 PCs ) and reinstate the cover.

* Please make attention the polarity of the battery.

4)Make sure the battery cover is secured after changing the batteries.

9. OPTIONAL ACCESSORIES

RS232 cable

UPCB-02

USB cable

USB-01

Data Logger software

SW-DL2005

Carrying case

CA-06

Carrying case

CA-05A

* Isolated RS232 cable.

* Used to connect the meter to

the computer ( COM port ).

* USB Computer interface cable.

* Used to connect the meter to

the computer ( USB port ).

* Software the used to download

the data logger ( data recorder )

from the meter to computer.

* Hard carrying case.

* 280 x 195 x 65 mm.

* Soft carrying case with saah.

* 260 x 110 x 55 mm.

21

Data Acquisition * The SW-U801-WIN is a multi software

SW-U801-WIN displays ( 1/2/4/6/8 displays ) powerful application software, provides the functions of data logging system, text display, angular display, chart display, data recorder high/low limit, data query, text report, chart report..

.xxx.mdb data file can be retrieved for EXCEL, ACESS.., wide intelligent applications.

(Type K) TP-01 * Max. short-tern operating

℃ ℉

* It is an ultra fast response

naked-bead thermocouple

suitable for many general purpose

Thermocouple

application.

℃ ℃

Probe

℉

(Type K), TP-02A * Dimension:10cm tube, 3.2mm Dia.

Thermocouple

Probe

℉

(Type K), TP-03 * Dimension: 10cm tube, 8mm Dia.

Surface Probe

(Type K), TP-04

* Size :

Temp. sensing head - 15 mm Dia.

Probe length - 120 mm.

Pt 100 ohm probe * -50 C to 400 C., Class A.

TP-101 * Cooperate with an 0.00385 alpha.

22

0604-TM946