Micro pressure difference switch technical characteristics meet the control of smoke control system damper

The mechanical micro-differential pressure switch is a gas measuring medium, and the gas flow is controlled by the micro-pressure change micro-switching action of the gas, because the overall action structure is based on the mechanical structure as the main transmission method, which is called mechanical micro-pressure. Differential switch.

According to the operating mode can be divided into: not adjustable and adjustable. Non-adjustable refers to the product that is manufactured according to the required action pressure value setting, the action pressure value is fixed, and the adjustable pressure difference switch is a micro pressure difference switch that can independently adjust the setting within a certain pressure range, or gradually replace The scope of application of the former.

The adjustable air pressure difference switch's internal diaphragm design senses pressure changes to detect small pressure changes. Switch settings or switching points can be adjusted on-site by simply using the adjustment knob and the built-in calibration visual scale. This switch is equipped with a clear cover, not only to protect the adjustment knob scale changes, but also provides IP54 protection, widely used in the ventilation and ventilation system filter protection monitoring equipment and anti-exhaust system pressure flow control.

working principle

The core technology of the micro-differential pressure switch is the sensitivity of the diaphragm to the change of gas pressure in the cavity. The switch is divided into a cavity (sensing part) and a micro switch (electrical part). The cavity diaphragm measures the pressure of the gas by The change takes place when the micro-switch of the displacement drive is opened and closed, alarm or gas flow control is implemented, and appearance technology, mechanical structure, and accurate measurement are used to evaluate the performance characteristics of the product.

Installation method

It is directly installed on the wall or cabinet body, and the monitoring environment gas is collected through the hose connection and is electrically connected with ordinary cable contacts.

Parameter performance

interface

Outer diameter 6.0mm straight pipe

medium

Empty, non-flammable or hazardous gas

Maximum working pressure

10 kPa

Installation position

Diaphragm anywhere in the vertical

Protection level

IP54 (with cover)

Operating temperature

-40° C to 85° C

Contact method

Single Pole SPST) or Single Pole Double Throw (SPDT)

Electrical indicators

Initial resistance: <400 milliohm; 1.5A (0.4A), 250Vac

Terminals

6.4 mmx 0.8 Straight Plug Terminals

Optional

Sound and light alarm function

IEEE 1394-Firewire Connector

IEEE 1394/Firewire Connector Overview
The IEEE 1394 connector series is capable of accommodating data rates up to 400 megabytes per second for serial transmission-consists of six-position connectors (for connections of computers to peripherals), and four-position connectors (for connections of digital AV equipment. We offer a screw thread size of M1.6 and two types of headers: dual inline package (DIP) and surface-mount technology (SMT). These four-position connectors help us manage a wide range of device designs and are suitable for DVD, set-top box, etc. The cable assemblies are also available with four-position to four-position type, for connection of AV equipment; four-positions to six-positions of transition type, for connections of PC and AV equipment; and six-position to six-position type for connections of PC and peripherals.

IEEE 1394 Connectors Product Features
Conforms to IEEE 1394 standard
Easy connections for plug and play devices
Available for wide range of connectors
DIP and SMT types available for PCB side
For 0.8mm and 1.6mm PC boards, M1.6 and M2.1 (4-position) panel mounting screw thread sizes
Use for automatic mounting machines with embossed tapes (4-position)


Fire Wire (IEEE 1394) Connector Wire to Borad Connectors
No of Contacts 4, 6, 9
Type
4pin IEEE 1394 Connector Female PCB Mounting Straight
4pin IEEE 1394 Connector Female PCB Mounting Right Angle
6pin IEEE 1394 Connector Female PCB Mounting Straight
6pin IEEE 1394 Connector Female PCB Mounting Right Angle
4pin IEEE 1394 Connector Male Wire Moulding type
6pin IEEE 1394 Connector Male Wire Moulding type
9pin IEEE 1394 Connector Male Wire Moulding type
9pin IEEE 1394 Connector Female PCB Mounting Right Angle
IEEE 1394 Connector With Female SMT 04P
IEEE 1394 Connector With Female SMT 09P

Firewire (IEEE 1394)


IEEE 1394 Connector Application:
IEEE1394 (Firewire) interface, IEEE1394 is a serial standard. .Like USB, IEEE1394 also support hotplug peripherals and can provide power for peripherals,
eliminating the need for built-in power supply. IEEE1394 supports multiple devices as well as synchronous data transmission.

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Audio Video Receivers
Hard Drives
Audio Recording Devices

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