TENMARS TM-311N Single K Type Thermometer User Guide

June 13, 2024
TENMARS

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

  1. Power On/Off: Press the Power key to turn on or off the thermometer.
  2. Temperature Unit Selection: Press the Temperature Unit Selection key to switch between temperature units.
  3. 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.
  4. Relative Value Function (Only for TM-311N): Press the Relative value function key to access the relative value function.
  5. T1, T2 Input Channel Switching (Only for TM-321N): Press the T1, T2 Input channel switching key to switch between input channels.
  6. 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

  1. : Power key.
  2. : Temperature unit selection key.
  3. : Memory and inquiry (MAX/MIN/AVG) value of the function key, every press inquiry (MAX/MIN/AVG), press and hold 2 seconds leave function.
  4. : Relative value function key. (Only for TM-311N)
  5. : T1, T2 Input channel switching. (only for TM-321N)
  6. : Hold the LCD display function key.
  7. Disable APO: Press and hold ( ) key for 2 seconds , disable or enable Auto Power Off function.
  8. 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.

TENMARS ELECTRONICS CO., LTD
6F, 586, RUI GUANG ROAD, NEIHU, TAIPEI 114, TAIWAN.
E-mail: service@tenmars.com
http://www.tenmars.com

References

Read User Manual Online (PDF format)

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