Tunix TT-07SP Manuale utente

unix

Corporation

Instrument

Manual

Handheld High-Precision

Digital Thermometer

TT-07SP

Table of Contents

Overview........................................................................................... .2

Specifications..................................................................................... 4

Input Wiring and Notes.......................................................................8

Display Screen................................................................................. 11

Keypad Operation............................................................................ 13

Menu Settings.................................................................................. 18

Description of Menu Parameters...................................................... 20

Calibration........................................................................................ 23

Description of Prompt Information.................................................... 26

Accessories...................................................................................... 30

Optional Accessories....................................................................... 30

Overview

Handheld High-Precision Digital Thermometer, based on 24-bit A/D

converters and 16-bit MCU, features high precision, high stability, low power

consumption, multiple input types, multiple measurement results, easy operation,

etc.

When suitable sensors are matched, it can be widely used for handheld precise

temperature measurement and Ω/mV/mA precise measurement in production,

scientific research and labs. Its main characteristics are as follows:

Pt100, Pt1000, Cu50, Cu100, K, S, E, T, J, R, B, N, as well as Ω, mV, and mA signals.

There are three compensation modes for thermocouples, including internal

compensation, external compensation and manual(simulated) compensation.

Input types:

In addition to basic measurement values, the relative value, maximum value,minimum

value, average value, peak-peak value, standard deviation and sampling number can

also be measured at the same time.

Mathematical-statistical measurement:

The highest resolution is 0.001℃ (RTD :Resistance Temperature Detector) or 0.01℃

(K/E/J/T/N thermocouple).

6-digital display, resolution can be set:

Switchable among Ω or mV, ℃, ℉ and K.

Four display units for thermal resistances and thermocouples:

Customized start-up display:

Including math modes, resolution, display units and the reference junction

compensation modes.

Miscellaneous:

Clear LCD layout, white backlight,

Easy keypad operation and smart and exquisite appearance,

Upper limit alarm and lower limit alarm can be set, User calibration is provided,

Low power consumption; three AA alkaline batteries, 1,500 hours battery life(typical

value, backlight off

）

Adjustable sampling rate and the filter action.

Sensor offset correction

Display freezing

Automatic backlight shut-off, automatic power shut-off and low battery voltage

detection.

Specification

Measurement Range and Accuracy

Specification

Notes:

1) Based on ITS-90

（

ITS: The International Temperature Scale); the environmental

condition: (23±5)℃, ≤85%RH; it should be put in the stable environmental conditions

for at least one hour, wait 5 minutes after start-up, with the menu parameters of

S_rAtE=1 and FILt=1, exclusive of sensor errors. The tolerance is 1.2Δ in case of

S_rAtE=2.

2) Using the method of “Calibration” in page 12 of this manual, the fixed error

component between sensor and thermometer can be eliminated.

3) The thermal resistance and thermocouple’s measurement range and tolerance

shown in other units (Ω, mV, ℉ and K) are equivalent to the above table.

(2) Resolution: The highest resolution:

(3) Stability of Indicating Values:

It is smaller than Δ/6 in a short period (10 minutes) and smaller than Δ/4 in a long

period (8 hours).

Notes:

1) The stability of indicating values means the fluctuation range of indicating values at a

stable input, and is defined as a half of the value the maximum value minus the

minimum value (i.e. a half of P-P value). The stability of indicating values is associated

with the input signal magnitude, S_rAtE value and FILt value.

2) Measurement condition: the instrument is placed in the environment with

7 stable temperature and humidity for 1 hour, waiting 5 minutes after start-up,

S_rAtE=1, FILt=1, MAN compensation mode adopted for thermocouple, and

80%FS stable signals as input

(4)Sampling Rate: The sampling rate is set by the menu parameter S_rAtE.

(5) Power Supply and Power Consumption: Three 1.5V AA batteries. The

operating current is no more than 1.5mA when the backlight is shut off, and

about 27mA when turned on.

(6) Conditions for Application Environment:

Ambient temperature : (0~50)℃,

Ambient humidity :

≦

85%RH

Dimensions and Weight: 155 X 70 X 30 mm, about 0.25kg (batteries included).

Environment conditions to ensure accuracy:

Ambient temperature : (23±5)℃,

Ambient humidity : 30~85%RH,

and there is no obvious electromagnetic interference.

Input Wiring and Notes

1. Wiring for RTD and Ω type:

The 4-wire connection is adopted, which is shown as F1 in the above drawing.

Two wires on the left side of the plug are connected to one end of the RTD or

resistance, and two wires on the right side of the plug are connected to the other

end of the RTD or resistance.

Special Notes: the 4-wire connection plug cannot be used as USB interface

purpose. It cannot be plugged into any USB sockets of computers or other

devices so as to avoid damage

2. Wiring for DC mV signals:

Pure copper conductor wires, plugs, connection lugs should be used for

connection, which is shown as F2 in the above drawing. In order to minimize the

influence of thermoelectric potentials, the surface feculences should be eliminated timely.

The thermoelectric potentials for some materials and copper are as follows for reference.

With regard to thermocouple or mV signals, wait for at least 5 minutes after

the plug is inserted into the instrument, and start to measure after thermal

balance so as to reduce the impact of thermoelectric potential!

Wiring with the manual reference end compensation mode (MAN) or the external

reference end compensation mode (EXT): Compensation wires are used for connection

from the thermocouple to the constant temperature oven, and pure copper wires and

plugs are used for connection from the constant temperature oven to the instrument. With

regard to the external compensation mode (EXT), a four-wire Pt100 platinum resistance

is required to be inserted into the constant temperature oven, and a

four-wire plug is required to be connected to the RTD socket of the instrument,

which is shown as F4 in the above drawing.

Note 1: Insulation between the external wires of each socket should be ensured, or

the measurement results will be affected.

Note 2: If any signals exceeding 5V or 100mA are input, the instrument will be

damaged.

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