Tunix TT-07SP User manual

Instrument
Manual
TT-07SP
Handheld High-Precision
Digital Thermometer

TABLE OF CONTENTS
Overview........................................................................................... 03
Specifications.....................................................................................05
Input Wiring and Notes......................................................................09
Display Screen.................................................................................. 11
Keypad Operation............................................................................ 12
Menu Settings.................................................................................. .16
Description of Menu Parameters...................................................... 18
Calibration........................................................................................ 20
Description of Prompt Information.................................................. 23
Accessories...................................................................................... 25
Optional Accessories....................................................................... 25

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.
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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.
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SPECIFICATION
MEASUREMENT RANGE AND ACCURACY
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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.
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(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
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(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
(8) Dimensions and Weight: 155 X 70 X 30 mm, about 0.25kg (batteries included).
(7) Environment conditions to ensure accuracy:
Ambient temperature : (23 ± 5)℃,
Ambient humidity : 30 85%RH,
and there is no obvious electromagnetic interference.
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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
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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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