Amprobe TMD90A Manuale utente

TMD90A

Dual Input Digital

Thermometer

User Manual

• Mode d’emploi

• Bedienungshandbuch

• Manuale d’Uso

• Manual de uso

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TMD90A

Dual Input Digital Thermometer

User Manual

•Mode d’emploi

•Bedienungshandbuch

•Manuale d’Uso

•Manuel de uso

PN 2099366

March 2007

TMD90A_all.pdf 1 3/23/2007 3:22:47 PM

TMD90A_all.pdf 2 3/23/2007 3:22:49 PM

TMD90A

Dual Input Digital Thermometer

User Manual

English

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TMD90A_all.pdf 4 3/23/2007 3:22:49 PM

TMD90A Dual Input Thermometer

Contents

Safety Information 2

Symbols Used in this Manual 2

Introduction 3

Display and Controls 4

Functions 5

Auto Power Off (Sleep Mode) 5

Change Thermocouple Type 5

Using the Pushbuttons 6

RS-232 Output 7

Troubleshooting 8

Replacing the Battery 9

9 V ac Adapter 9

Repair 10

Limited Warranty and Limitation of Liability 11

Thermocouple Definitions 11

Specifications 12

Additional Specifications 12

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Safety Information

•Place ONLY thermocouples in the thermocouple input.

•Make sure your meter is configured for the thermocouple type to

be used.

•Be sure the thermocouple you use can withstand the temperature

extreme it will be exposed to.

•Properly maintain the meter and calibrate it regularly

•Use the thermometer only as specified in this manual, or the

protection provided by the thermometer might be impaired.

•Replace the battery as soon as BAT appears to avoid false readings

that can lead to electric shock and injury.

XWWarning

Supplied thermocouple is not intended for contact

with liquids or live electrical circuits.

Symbols Used in this Manual

X Dangerous Voltage WRefer to the manual

TDouble insulated JEarth Ground

P Complies with EU

directives

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Introduction

The Model TMD90A dual input thermometer accepts Type K, J, T, R, S,

and E thermocouples. With a triple display screen to view measurement

results and relative time clock. Optional RS-232 software and cable

allows collection of real time data to a PC for further analysis or

reports.

TMD90A displays all LCD (liquid crystal display) segments for

approximately 3 seconds when it is first turned on and then provides

information on any connected thermocouples. Numerous viewing

combinations are available. The LCD is divided into three distinct

sections; one large (Primary) top screen and two smaller bottom

screens (Secondary and Relative Clock).

The three display areas are continually updated with the temperature

measurements and relative time information. There are several options

regarding how and what information is presented on the LCD.

•Temperature readings are easily toggled between Fahrenheit and

Celsius.

•A backlight illuminates the LCD for viewing in low light areas.

•The Abutton will freeze the upper display data while allowing

the lower displays to continue updating Information.

•A low battery indicator is also displayed as appropriate.

•The meter defaults to the last mode selected when turned off.

Note: If no thermocouples are connected, four dashes(----) appear in

the temperature display.

Box Contents

TMD90A Thermometer 1

Type K thermocouple probe 2

Users Manual 1

Hard plastic carry case 1

9 V battery 1

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Display and Controls

10 (T2)

10 (T1)

A REC Relative clock is active for recording min and max

temperature occurences or for time stamp purposes.

B MAX/MIN Maximum or minimum temperature

measurements are being monitored.

C HOLD/REL Freezes primary display or establishes a relative

zero for the primary display information.

D BAT Low battery indicator.

E °C °F Displays temperature in either degrees Celsius or

degrees Fahrenheit.

F T1-T2 Toggles screen information from T1 (Primary)/ T 2

(Secondary) to T2 (Primary) / T1 (Secondary) ,then to T 1-T 2

(Differential) on Primary and alternating T1/T2 temperatures

on Secondary display.

G Primary data display. Displays T1, T2, or T1-T2( temperature

differential -TD ) or a relative zero of T1, T2, or TD.

H KJTRSE Selects proper input reference for thermocouple in

use. T1 and T2 must be the same thermocouple type.

I Secondary data display. Displays T2,T1 or T1 and T2

temperatures.

J Thermocouple input. Positive and negative polarized plugs for

the thermocouple probes used ( Blade type ); T1 on the

left,T2 on the right.

K Relative clock display. Displays time in hours, minutes, and

seconds (HHMMSS) when REC is pressed and the relative

time that MIN or MAX data was recorded.

L RS-232 output port. Optional software and cable – PN

TM-SWA.

M AC to DC converter input.

TMD90A_all.pdf 8 3/23/2007 3:22:49 PM

WCaution

Read all Safety Information before using this

thermometer.

Functions

Auto Power Off (Sleep Mode)

The TMD90A shuts off automatically approximately 20 minutes after

being turned on. For recording or operating over longer periods of time

you can disable the sleep mode by pressing Dand A

simultaneously while powering on. When "n" then appears in the center

of the screen you can release the On button. Auto power off is disabled

when you turn off the meter.

Change Thermocouple Type

Press Eand Dsimultaneously for 2 or more seconds until K

appears. Press the Cbutton the type of probe cycles through K

(the default), J, T, R, S, and E types. The current mode is displayed on

the left side of the LCD. press E, an "S" will appear in the center of

the screen.

TMD90A_all.pdf 9 3/23/2007 3:22:49 PM

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