P/N:110401110446X
UT366A Digital Manometer
UserManual 

Introduction

UT366A is an instrument for measuring gauge pressure and differential pressure. UT366A can measure P1/P2 pressure independently with LED indication. It can be widely used in industrial manufacturing, HVAC, plumbing and other industries. Combined with an optional pitot tube, UT366A can also measure wind speed.

Accessories

1. Digital manometer………………. 1pcs
2. Hose…………………………………… 1pcs
3. AAA batteries……………………… 3pcs
4. User manual ………………………..1pcs
5. Carrying bag ………………………..1pcs
6. Magnetic hook …………………….1pcs

Specifications

• Units: kPa, mbar, bar, psi, mmHg, inH2O, inHg, Ozin2, kgcm2, ftH2O, mmH2O, hPa, m/s, fpm
• Pitot tube coefficient: 1
• Range:
  

  0.00—±15.00 kPa 0.0—±150.0 mbar 0.000—±0.150 bar 0.000—±2.175 psi 0.0—±112.5 mmHg 0.00—±60.29 inH2O 0.000—±4.429 inHg

  0.00—±34.80 Ozin2 0.000-±0.152 kgcm2 0.000— ± 5.026 ftH2O 0.0—±1531 mmH2O 0.0—±150.0 hPa 0.0-19999.9 m/s 0-199999 fpm

•  Resolution:
  

  0.01 kPa 0.1 mbar 0.001 bar 0.001 psi 0.1 mmHg 0.01 inH20 0.001 inHg

  u.01 Ozin2 0.001 kgcm2 0.001 ftH2O 1mmH20 0.1 hPa 0.1 m/s 1 fpm

• Accuracy: ±0.5% FS@25°C
• Unit memory: When the product is turned on, its pressure unit defaults to the unit when it was turned off last time.
• Auto power off: When the meter enables this function, it will power off automatically if no button press occurs for 5 minutes.
• Low battery indication: When the battery power is less than 3.7V, a low battery indicator will appear.
• Batteries: AAA 1.5V* 3pcs
• Power consumption:
  Power off: < 10uA;
  Power on: < 10mA;
  Power on and backlight on: < 15mA;
  Power on and one indicator light on: < 15mA;
  Power on and two indicator lights on < 20mA; Power on, backlight and one indicator light on:
  < 20mA;
  Power on, backlight and two indicator lights on:
  < 25nnA.
• Battery life:
  Power on: > 50h;
  Power on and backlight on: > 30h;
  Power on and one indicator light on: > 30h;
  Power on and two indicator lights on: > 25h;
  Power on, backlight and one indicator light on> 25h;
  Power on, backlight, and two indicator lights on> 20h.
• Environmental requirements:
  Operating: 0-50°C C85%RH;
  storage: 10-60°C –75(YoRH.

Product Structure

Buttons

1. Function
   

   	Long press	Short press	Short press in the menu
   	Power on/off	Data hold	–
   	Data zero	Unit conversion	+
   	Tum on/off probe indicator lights	P1/P2 selection	Select
   	Turn on/ off the backlight	Max/Min/Avg	Enter

2. Button combination
   

   	Short press: enter/exit the setting menu
   	Short press: view version NO.

Operation

Turn on/off the meter:
Long press
Data hold:
Short press
Unit conversion:
Short press to switch between selectable units: kPa, mbar, bar, psi, mmHg, inH 20, inHg, Ozin2, kgcm2, ftH2 0, mmH2O, hPa, m/s ,fpm.
Among them, m/s and fpm are wind speed units. To switch between these two units, short press and enter the setting menu, the press is to enter the wind speed unit setting mode (as shown in the figure), and then short press to switch between m/s and fpm. Press and again to exit the setting menu. Notes: Wind speed needs to be measured with a pitot tube. Please purchase it separately if necessary.
Data zero:
The meter can start to operate about 5 seconds after being turned on. Before the hose is connected, if the value displayed on the screen is not 0, users need to long presto zero the data. P1 and P2 will be zeroed at the same time.
Switch channel:
The default channel when turning on the meter is P1-P2 (the difference between P1 and P2 channels). Short press to step through P1-P2 > P1-P2/P1 > P1-P2/P2 > P1/P2.
Turn on/off probe indicator lights:
Long press
Max/Min/Avg selection:
Short press
Turn on/off the backlight:
Long press

Turn on/off the auto power-off function:

Short press and to enter the setting menu. Short press IS to tum on/off the APO function. Short press and again to exit the setting menu. If the APO function is turned on, the icon will show on the screen. The meter will power off automatically if no button press occurs for 5 minutes.

Air density setting:
Air density setting is related to the wind speed measurement. In general, the air density is 1.293kg/m3. If users need to measure the flow rate of other gases, they can set the corresponding density. Short press and to enter the setting 11 menu. Press twice to set the air density. Short press or press to select the next digit.
Short press andagain or short press once to exit the setting menu.

Probe Indicator Lights

Note: P1+ means the air pressure value is positive (the indicator light is green). P1- means the air pressure value is negative (the indicator light is red). Long press the “P1/P2” button to turn on/off the indicator lights. In the P1-P2 channel, the indicator lights are off by default, and cannot be turned on.

Maintenance and Repair

• Replace batteries:
  When the icon is displayed on the screen, follow the steps below to replace the batteries.
  1. Remove the battery cover.
  2. Take out the old batteries and put in three new 1.5V AAA batteries. Pay attention to the battery polarity.
  3. Close the battery cover.
• Clean the housing: Clean the housing with a damp cloth. Please do not use corrosive detergents or solutions for cleaning in that they are corrosive to the housing, especially to the LCD.
• Please take out the batteries if the meter is not used for a long time to prevent battery leakage from seriously damaging the meter.
• Do not disassemble this meter or change the internal.

Troubleshooting

• “OL or -OL”: The reading exceeds the measurement range. Please measure within the specified range
• “Lo”: The wind speed reading is too low. Check whether the two ends of the pitot tube are connected reversely.
• “2 flashes when measuring wind speed: The data should be zeroed. Otherwise there will be measurement errors.
• The wind speed unit flashes when pressing the “P1/P2” button: The P1-P2 channel is used for wind speed measurement by default, and cannot be changed.
• “Err:Ambient temperature compensation NTC has errors.
  

UNI-TREND TECHNOLOGY (CHINA) CO., LTD.
No.6, Gong Ye Bei 1st Road,
Songshan Lake National High-Tech Industrial
Development Zone, Dongguan City,
Guangdong Province, China

Documents / Resources

	UNI-T UT366A Digital Manometer [pdf] User Manual UT366A, Digital Manometer, UT366A Digital Manometer
	UNI-T UT366A Digital Manometer [pdf] User Manual UT366A, UT366A Digital Manometer, UT366A Manometer, Digital Manometer, Manometer

References

• User Manual