Page 1: Table Of Contents
CONTENTS: Page Overview Specifications Input Wiring and Notes Display Screen Keypad Operation Menu Settings Description of Menu Parameters Calibration Description of Prompt Information Accessories Optional Accessories...
Page 2: Overview
Overview AI-5500 Handheld Economical Digital Thermometer, 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 in production, scientific research and labs.
Page 3 Other: Clear LCD layout, white backlight, Easy keypad operation and smart and exquisite appearance, Upper limit alarm and lower limit alarm can be set, Users calibration is provided, Low power consumption; three AA alkaline batteries, 1,500 hours battery life(typical value, backlight off）. Sensor offset correction, display holding.
Page 4: Specifications
Specifications (1) Measurement Range and Accuracy tyPE Effective Measurement 1-year tolerance Δ Type Range (see the notes) Code ±+0.5℃) Pt100 (-200.000~+850.000)℃ (-200.00~+1372.00)℃ ±1.50℃ ±2.4℃ (0.0~1768.0)℃ (-200.00~+1000.00)℃ ±1.2℃ (-200.00~+400.00)℃ ±1.2℃ (-210.00~+1200.00)℃ ±1.2℃ (0.0~1768.0)℃ ±2.4℃ (300.0~+1820.0)℃ ±2.4℃ (-200.00~+1300.00)℃ ±1.8℃ Notes: Based on ITS-90 （ ITS: The International Temperature Scale ） ; the environmental condition: (23±5)℃, ≤85%RH;...
Page 5 (2) Resolution: The highest resolution: tyPE Celsius Fahrenheit tyPE Kelvin K Code Degree ℃ degree ℉ Pt100 0 / 0.0 0 / 0.0 0 / 0.0 (3) Sampling Rate: Input signals Sampling Rate Thermocouple/ PT100 2.5 times/s (MAN Compensation) Thermocouple 2 times/s (INT/EXT Compensation) (4) Power Supply and Power Consumption:...
Page 6: Input Wiring And Notes
Input Wiring and Notes Thermocouple Thermocouple Thermocouple PTD or Resistor Thermocouple Thermo mocouple wire Wire Constant temperature ture bath Thermocouple Pt100 Constant Temp. Bath Thermocouple Wire Copper Wire ermocouple wire Copper wi Copper wire Copper Wire Copper wire Copper Wire 4-wire connec nector 4- Wire connector...
Page 7 2. Wiring with the interior reference end compensation method (INT) is adopted for thermocouples: The same thermoelectric characteristics should be ensured for connection from the thermocouple measurement end to the plug, that’s to say, the compensation wires and plugs should be used as the same type as the “tyPE”, the extension type is preferable.
Page 8: Display Screen
Display Screen (1) REL/MAX/MIN/AVG/P-P/SN: Mathematic function: Which respectively the relative value, maximum value, minimum value, average value, peak-peak value, standard deviation and sampling number. The standard deviation and sampling number have the same sign “SN”. (2) LOWBAT: This sign is displayed when the battery voltage is low; (3) AUTOOFF: The sign is displayed when the automatic shutdown is set.
Page 9 (8) Pt100 / K / J / T / S / R / E / N / B: Type of RTD and thermocouples. (9) INT/EXT/MAN: Compensation modes for the thermocouple reference ends; (10) LOAL/HIAL: Indicates the lower limit or upper limit alarm.
Page 10: Keypad Operation
Keypad Operation Backlight Power Key Power Light Unit Resolt Hold Math ∧/ ＜ / ∨/ Key 4 Key 1 Key 2 Key 3 Keys are divided into three types including the short keys, long keys and key combinations. Long keys or key combinations (keys should be pressed and hold for 2 seconds) are used to realize the functions of Set, Cancel, RJ or Cal, and short keys are used to realize other functions.
Page 11 Auto.b.L is no less than zero, and buzzer sound is not allowed when Auto.b.L is less than zero. (3) Key 1: in the measuring state, briefly press “Key 1” to switch display unit; press “Key 1” and hold it for 2 seconds to realize the “Set” function and enter menu settings.
Page 12 start-up (or after pressing “Cancel”): ∑ − When the sampling number n exceeds 1 million times, the average value calculation will be suspended and the displayed AVG value remain the same. f) P-P is the peak to peak value during measurement. It is equal to the peak to peak value for the measurement results since start-up (or after pressing “Cancel”), i.e.
Page 13 measurement results up to 1,000,000 times. Notes: When the sampling number exceeds 1 million times, the average value, standard deviation and sampling number will be suspended and remain the same, and the measurement for REL/MAX/MIN/P-P is still progressing and is not subject to the sampling number.
Page 14 (5) Key 3: 1) In the measurement state, press “Key 3” briefly to change the display resolution. 2) In the measurement state, press “Key 3” and hold it for 2 seconds to select the compensation modes for thermocouple reference ends. a) INT is the internal compensation mode: see 3.(2) above for its wiring.
Page 15: Menu Settings
can be used for calibration of compensation errors of the thermocouple interior (INT) reference ends. b) When the menu parameter CAL.Cod is equal to 5500, pressing “Key 4” for long can restore the factory calibration datum and settings. 3) In the menu parameter setting state, “Key 4” is the increase key. Menu Settings Press “Key 1”...
Page 17: Description Of Menu Parameters
Description of Menu Parameters (1) Input Signal Type – tyPE: There are corresponding signs for thermal resistances and thermocouples. (2) Start-up Customization – ConFig: If the current mathematic measurement mode, display unit, resolution and reference end compensation mode are expected to be kept for each start-up in the future, then the menu parameter “ConFig”...
Page 18 (9) The manual setting value for reference end’s temperature - mAn.tmp: Set the menu parameter mAn.tmp to the temperature value of the constant temperature oven in case of adopting the MAN compensation mode. When verify the indicating value errors for the thermocouple of the instrument, sometimes it is inconvenient to use INT compensation mode, and the MAN compensation mode can be used.
Page 19: Calibration
alarm sound will stop automatically after 60 seconds, or can be deactivated by pressing any key. 3) The alarm hysteresis error δ is a fixed value for each tyPE, which cannot be changed by users. Δ≈(0.1~0.6)Δ (electric quantity). The alarm hysteresis error can avoid oscillation alarm near the alarm points.
Page 20 interference factors should be guaranteed, so as to ensure accurate calibration results. (1) Selection of standard device: Four-wire real material object resistance (i.e. ZX74) should be adopted for RTD, and no simulated resistance can be used; the internal resistance of the thermocouples signal source should be less than 100Ω. Constant temperature oven (or ice bath) can be measured by the 2nd standard mercury thermometer.
Page 21 (4) Calibration for Errors of the Interior Reference Ends: Place the instrument in the environment with stable temperature, set the type to the thermocouple with larger thermoelectric potentials (K thermocouple or E thermocouple is favorable and B thermocouple, S thermocouple or R thermocouple is not suitable), set OFF.SEt = 0, CAL.Cod=808, set the compensation mode to the INT interior mode, connect the (class-Ⅰ) thermocouple.
Page 22: Description Of Prompt Information
constant temperature oven according to the indicated units (℃, ℉, K), and press “Key 4” for confirmation at last. When “rEF=?” is shown, you can also press “Key 2” or “Key 3” for long to exit the error calibration for the interior reference ends.
Page 23 standard mV values are respectively equal to 0.000mV, 18.000mV and 58.000mV. (5) CA.FAIL: The calibration has failed. Press “Key 4” briefly to exit. (6) CAL.ok: The calibration is successful and the calibration coefficient is saved. Press “Key 4” briefly to exit. (7):ESC.CAL: Cancel calibration or resumption of factory calibration coefficients and settings, and press “Key 4”...
Page 24: Accessories
(14) In.LoW: The input signals (including signals of the reference ends) are lower than the measurement range. (15) In.HIgh: The input signals (including signals of the reference ends) are higher than the measurement range. (16) In.Err: Abnormal input (open, broken and other situation for sensors). (17) WrI.Err: There are errors for saving parameters, which may results from low battery voltage, so try to resolve this problem by replacing the batteries with new ones.
Page 25 User Records User Records...
Page 26 User Records...