Battery powered pressure sensor

Battery powered pressure sensor

1、 Overview

Digital pressure gauge is full electronic structure, battery powered, easy to install on site. The front-end uses high-precision piezoresistive pressure sensor. The output signal is amplified and processed by high-precision, low-temperature drift amplifier, sent to high-precision A / D converter, converted into digital signal that can be processed by microprocessor. After operation and processing, the actual pressure value is displayed by LCD display.

The intelligent digital pressure gauge is flexible to use, simple to operate, easy to debug, safe and reliable. Widely used in water and electricity, tap water, petroleum, chemical, machinery, hydraulic and other industries, to measure and display the pressure of fluid medium.

2、 Characteristics

Large screen LCD display, high resolution, ignoring value error

The peak holding function can record the maximum pressure value in the measurement process

Dynamic display of pressure percentage (progress bar display)

Five engineering units: psi, bar, kPa, kg / C ㎡ MPa

Choose 1 ~ 15min automatic shutdown function.

Micro power consumption, working in power saving mode for more than 2 years, continuous working for 2000 hours.

Parameter correction function, field can correct the zero point and error value of the instrument

Upper and lower limits of measuring range

Sampling rate: 4 times / S

Suitable for pressure measurement of various gases and liquids compatible with stainless steel

3、 Technical parameters

Range - 0.1 ~ 0 ~ 100MPa accuracy class - 0.5%

Overload capacity ﹥ 200% pressure type ﹥ gauge pressure

Stability ≤ 0.1% / year battery voltage ≤ 9VDC

Display mode LCD display range - 1999 ~ 9999

Ambient temperature - 20 ℃ ~ 70 ℃, relative humidity ≤ 80%

Installation thread: M20 * 1.5; interface material: M20 * stainless steel

4、 Dimensions

5、 Installation

It can be directly installed on the hydraulic pipeline through the pressure pipe joint (M20 * 1.5) (other size joints can be specified when ordering). In critical applications (such as severe vibration or impact), the pressure pipe joint can be mechanically decoupled by micro hose. ﹣ note: when the measuring range is less than 100KPA, it must be installed vertically.

6、 Operating instructions:

1. Measurement status:

On / off: short press the "on / off" key to switch units: long press the "on / off" key to switch units

Clear peak value: press the "zero" key for a short time. Clear display: press the "zero" key for a long time

(Note: this function can only be used without pressure)

2. Setting status:

"Zero" key: short press to modify the current flicker value or flip down the menu, long press to move the flicker position "on / off" key: short press to allow to modify the current parameter value (the highest value flickers) or confirm the current modified parameter value (the value stops flickering), long press is invalid

3. Parameter setting:

"Locd": password input menu, input password "1000"

"Off T": automatic shutdown time menu, setting range "00 ~ 15" minutes, "00" for continuous operation

"Bclt": backlight on time menu, setting range "00 ~ 15" minutes, "00" is to turn off backlight

"End -": exit the menu, setting values "0 ~ 1", "0" to exit without saving setting parameters, "1" to exit with saving setting parameters

4. Setting method:

1. Press "zero" and "on / off" at the same time. When "lock" is displayed on the sub screen, input "1000", press "on / off" to confirm and enter the parameter setting state

2. Short press "zero" to select the menu to modify

3. Press the "on / off" key to modify the parameters

4. Press the "on / off" key to confirm the modification

5. Short press "zero" to select "end -" menu,

7、 Instructions for use:

1. The instrument should be stored and used in the environment of - 20 ℃ ~ 70 ℃, and the humidity is less than 80%

2. The instrument connector should be concentric and flat when connecting the pipeline

3. Please use 9V alkaline battery (6LR61) when replacing the battery.

8、 Ordering instructions:

The measuring range, accuracy grade and interface size should be indicated when ordering.

9、 Warranty

Under the condition that the user abides by the rules of use and protection, the instrument is guaranteed for one year from the date of delivery. The maintenance after one year is carried out in our company.