HHDR type micro-differential pressure transmitter is a new-pattern transmitter produced by our company through bringing in foreign advanced technology and equipment. The key raw materials, components and parts are all imported. The whole machine is strictly assembled and tested. The design principle of our product is advanced; the types are multiple; and the installation and use are simple and convenient. Because the appearance completely blends the structure merits of currently the most popular and widely used two types of transmitters ( Rosemount3051 and YOKOGAWA EJA)at home, it gives the users a completely new feeling. Meanwhile in terms of the installation it can be replaced with traditional 1151,CECC, etc. series of products, and has strong versatility and capability of replacement. In order to adapt the increasing improvement and development of domestic automation standard the series of products have exquisite design; furthermore they have the intelligentized function of HART site mainline protocol.

Features of Analogue Type

● High accuracy
● Span and zero point : outside continous and regulatable
● Good stability
● Positive drift can amount to 500%、negative drift can amount to 600%
● Two-wire system
● Damping regulatable, overpressure resistant
● Design of solid sensor
● No mechanical and movable parts, little repair work
● Slight weight（2.4kg）
● All series have unified structure strong interchangeability of parts
● Miniaturization（total height 166mm)
● Membrane materials of contacting mediums optional
● Strong resist one-side overpressure
● Low pressure casting Al alloy shell body

Features of Smart type

● Super measuring performance，apply to measurement of hi-pressure, differential pressure, leveland flow rate
● Digital accuracy：+（-）0.05%
● Analogue accuracy：+（-）0.075% +（-）0.1%F.S
● Overall performance：+（-）0.25F.S
● Stability：0.25% 60 months
● Ratio of spans：100：1
● Measuring speed：0.2S
●Miniaturization（2.4kg）all stainless steel flanged, easy for installation
●Process connect compatible with other products to realise best measurement
●The only sensor in the world that exploits H alloy protective covering（patent technology, realises good cool and hot stability
●Employ smart transmitters with 16-bit computer
●Standard 4-20mA，with digital signals based on HART protocol, remote operation
●Support the upgrade of on-the-spot main line and technology based on on-the-spot control.