TENMARS TM-311N Single K Type Thermometer User Guide

: June 13, 2024
: TENMARS

Table of Contents

TENMARS TM-311N Single K Type Thermometer
Product Information
Product Usage Instructions
Operation
Introduction
Specification
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

TENMARS TM-311N Single K Type Thermometer

Product Information

The TM-311N Single K Type Thermometer and TM-321N Dual K Type Thermometer are portable microcontroller-designed thermometers with high measurement accuracy and stability. They are lightweight and easy to operate with one hand. The thermometers have a 4-digit LCD display with a maximum display of 9999. They come with a polarity indicator and a low power indicator. The thermometers are powered by a 9V battery (NEAD1604, IEC6F22, JIS006P) and have a battery life of approximately 100 hours with alkaline batteries. The weight of the thermometers, including batteries, is approximately 180g.

Product Usage Instructions

Power On/Off: Press the Power key to turn on or off the thermometer.
Temperature Unit Selection: Press the Temperature Unit Selection key to switch between temperature units.
Memory and Inquiry Function: Press the Memory and Inquiry function key to access the MAX/MIN/AVG values. Press and hold for 2 seconds to exit the function.
Relative Value Function (Only for TM-311N): Press the Relative value function key to access the relative value function.
T1, T2 Input Channel Switching (Only for TM-321N): Press the T1, T2 Input channel switching key to switch between input channels.
Hold Display Function: Press the Hold display function key to freeze the LCD display.

Please note that the thermometers have a reading update rate of 1 time/sec and are accurate for ambient temperatures between 18~28°C (64~82°F). The specifications mentioned above do not include the error of the thermocouple.

Operation

: Power key.
: Temperature unit selection key.
: Memory and inquiry (MAX/MIN/AVG) value of the function key, every press inquiry (MAX/MIN/AVG), press and hold 2 seconds leave function.
: Relative value function key. (Only for TM-311N)
: T1, T2 Input channel switching. (only for TM-321N)
: Hold the LCD display function key.
Disable APO: Press and hold ( ) key for 2 seconds , disable or enable Auto Power Off function.
0℃Adj: Press the ( )key and ( ) key to enter the digital 0℃adjust settings, Press ( ) key or Press( ) key the bottom window plus or minus 0.1, press( ) key to complete the 0℃adjust.

Introduction

This product is a portable microcontroller design, high measurement accuracy and high stability. Rugged easy one-hand operation, digital 0℃ adjustment, reading and (maximum/minimum/average) value can be displayed simultaneously.

Accessories:

9V NEAD1604, IEC6F22, JIS006P x1 pc
TP-01 K-type thermocouple x1 pc
User’s manual x 1 pc

Specification

General specification

LCD display digits| 4 digit LCD display, the largest display 9999.
---|---
Polarity indicator| No indicator in positive, negative indicator ” – “
Overload indicator| Positive overload show “ OL “ , negative overload show “ -OL “
Low power indicator| Whe display indicator the battery power is low.
Power| 9V NEAD1604, IEC6F22, JIS006P x1pc
Battery life| Approximately 100 hours / alkaline battery
Operating temperature| 0 ℃ ~ 50 ℃ (32°F ~ 122°F), < 80 ﹪ RH
Storage temperature| -10 ℃ ~ 60 ℃ (-4°F ~ 140°F), < 70 ﹪ RH
Weight| Approximately 180g (include batteries)

Electrical specification

Measurement range| -200 ℃ to +1372 ℃ (-328°F to +2501°F)
---|---
Resolution| 0.1| ≦ 999.9
1| ≧ 1000
Reading update| 1 times/sec
Accuracy (23 ℃ ±5 ℃ )

(73.4 ℉ ±9 ℉ )

| ± 0.1% reading + 0.5 ℃ (1°F)

Below -100 ℃ (-148°F): ±(0.2% rdg+ 1 ℃ (2 ℉ ))

Temperature coefficient| -100 ℃ ~+1372 ℃ (-148°F to +2501°F): 0.01% reading +0.05 ℃ / ℃ (0.1°F /°F) outside the specified +18°C to 28 ℃ (+64°F to +82°F)

Below -100 ℃ (-148°F): 0.02 ﹪ rdg+0.1 ℃ / ℃ (0.2 ℉ / ℉ )

Temperature Scale| ITS- 90
Accuracy is specified for ambient temperatures between 18~28 ℃ (64~82 ℉ ). The above specifications do not include error of thermocouple.