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Shenzhen Yuanjian Sensing Technology Co., Ltd

E-mail
319059197@qq.com
Phone
15013668479
Address
East 3rd Floor, Building 15, Majialong Industrial Zone, Nantou Street, Nanshan District, Shenzhen

Micro differential pressure transmitter BPS-12A

NegotiableUpdate on 06/24

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Product Manual Product Specification 1. Product Introduction The working principle of a micro differential pressure transmitter is that the pressure of the medium directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro displacement proportional to the pressure of the medium, which changes the resistance of the sensor. The electronic circuit is used to detect this change and convert it into a standard signal corresponding to this pressure

Product Details

Product manual

product specification

Brief introduction

The working principle of a micro differential pressure transmitter is that the pressure of the medium directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro displacement proportional to the pressure of the medium, resulting in a change in the resistance of the sensor. The electronic circuit is used to detect this change and convert it into a standard signal corresponding to this pressure.

This product uses imported integrated chips, wide voltage power supply, strong anti-interference ability, reverse connection protection, high accuracy, good stability, and can artificially correct zero points.

Micro differential pressure transmitter obtains the pressure difference between air and non corrosive gases, and is suitable for various industrial automation environments such as HVAC, dust-free clean rooms, pipeline air supply, boiler negative pressure, oven pressurization, ventilation equipment, fan control, variable air volume systems, etc.

2、 Product Device Introduction

3、 Model and Description

4、 Wiring method

5、 Product Features

1. Linear pressure characteristics and selectable pressure measurement range

2. Working voltage: 16-30VDC

3. Signal output: 4-20mA/0-5V/0-10V/RS485 type

4. Zero point adjustment

5. Simple and fast installation brought by the integrated bracket inside the shell

6. Calibration and temperature compensation measurement signals

6、 Application areas:

1. Measure subtle pressure differences in ventilation equipment and air conditioning ducts

2. Check the air flow rate

3. Monitor filters and control fans

7、 Model Summary

Unit: Pa

Product series	product name	Pressure range measurement
Product series	product name	Measurement Range 1	Measurement range 2	Measurement range 3	Measurement range 4	Overload pressure	Impact Pressure
BPS-01	100Pa micro differential pressure transmitter	±50Pa	-	±65Pa	±100Pa	±10Kpa	±20Kpa
BPS-02	1KPa micro differential pressure transmitter	±250Pa	-	±500Pa	±1Kpa	±10Kpa	±20Kpa
BPS-03	10KPa micro differential pressure transmitter	±2KPa	±3KPa	±5KPa	±10KPa	±85Kpa	±110Kpa
BPS-04	35Kpa micro differential pressure transmitter	±30KPa	±35KPa	-	-	±175Kpa	±280Kpa

8、 Operation mode

The sensor obtains the pressure difference value through silicon piezoresistive elements, and the sensor forms a linear 4-20mA/0-5V/0-10V/RS485 temperature compensation output signal based on the sensed deviation value.

9、 Mechanical Design

The micro differential pressure transmitter consists of the following components:

1. Sensor housing fixed bracket, cable entry, movable buckle cover with safety screws

2. Force measurement uses silicon piezoresistive elements

3. Printed circuit board with wiring terminals and DIP switches for selecting measurement range ("see debugging precautions")

4. Zero point adjustment button ("see debugging precautions")

10、 Debugging precautions

Adjustable measurement range: pressure range and direction, adjusted by dip switch

Zero point adjustment: reset and calibration

Short press the zero adjustment button (within 1 second) to reset the panel.

(Please manually reset it while keeping it parallel to the installation method; please manually reset it while the positive and negative air intakes are connected.)

Operation steps

state

result

key

1. Power on PCB

2. Keep the positive and negative pressure inlet pressure difference at zero

3. Click the 0-point button

Red light on

0-point calibration

11、 Technical parameters

Product Data:

measuring range	Refer to "Model Summary"
Sensing element	Silicon piezoresistive element
Room temperature	Measurement during correct installation at 20-25 ℃ (FS=full range measurement)
Accuracy: Total error Temperature offset	± 1 % /± 0.5 % / ±0.2% FS <±0.1% FS /°C
medium	Air and non corrosive gases
Allowable temperature range of the medium	-20-85℃
maintenance	long term stability

Electrical characteristics:

All output types	power supply	safety extra low voltage
All output types	voltage power consumption	DC16-30V <1.5 VA
4-20mA output type	output current	4-20 mA
	load	≤250 Ω
	output	Non electric separation, non-polar two-wire connection, rectifier bridge anti reverse connection

Link:

Electrical connection
screw terminal	Maximum 1.5mm ² cable
cable	Cable sealing gland mouth (without anti cable deformation)
Pressure connection	Pressure nozzle, 6.21 mm diameter

Environmental conditions:

Allowable ambient temperature
run	-20-85℃
Transportation/Storage	-40-125 ℃
Allowable environmental humidity	<90% RH (non condensing)

12、 Appearance dimensions (length * width * height: 99.0 * 101.5 * 39.9mm, tolerance: ± 1mm)

13、 Installation method

First, use the back ruler to mark the installation hole position on the wall, drill a 30mm Ø 6mm wall hole to place the expansion tube, then open the buckle of the micro differential pressure transmitter and flip over the cover

Cover, fix the self tapping screw (ST3.5 × 25) in the designated position on the wall through the fixing hole of the micro differential pressure transmitter, connect the incoming and outgoing wires through the waterproof joint, and finally cover with the cover.

be careful:

No air duct connection device is provided during supply;

Please read the instruction manual carefully and follow the wiring diagram for operation. If the product is damaged due to wiring reasons, it cannot be covered by warranty.