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trafag压力变送器 点击此处进入产品详细说明
　　
瑞士trafag为欧洲久负盛名的压力传感器厂商。其产品广泛应用于空压、液压、水处理、空调制冷、工程机械等。
基于溅射薄膜原理的压力传感器具有高精度及高稳定性。基于陶瓷厚膜原理的传感器价格合理，耐腐蚀性好。trafag信心之选


瑞士TRAFAG、TRAFAG压力开关，TRAFAG压力变送器、TRAFAG压力传感器、TRAFAG恒温器
瑞士TRAFAG公司为欧洲久负盛名的压力传感器、控制产品生产厂商。其产品广泛应用于各工业领域。特别适用于要求使用精度高，环境苛刻的场所。TRAFAG公司研制和生产工业压力设备：如传感器专为测量和监测气体的压力/温度/密度。TRAFAG产品广泛应用在：船舶大厦、引擎管理、机械工业、工艺技术、高压危险地区、供暖、通风及空调、汽车等行业等。
TRAFAGTRAFAG传感器、TRAFAG压力传感器代表型号：
8891.80.3317.0100001934　8891.85.3315.0100001934
8891.77.3317.0100001934　873100663HT41205072
873100173HT41205072　8891.74.3315.01.0000.19.34
　

　 产品名称： trafag 8498压力变送器
　 产品特性： trafag 8498压力变送器
　 产品规格： trafag 8498压力变送器


　
产品介绍：
8498系列经济型压力变送器。其产品广泛应用于空压、液压、水处理、空调制冷、工程机械等。基于厚膜陶瓷原理的传感器具有经济性，耐腐蚀性好。Trafag瑞士精工品质。 Trafag 8498系列 经济型压力变送器

品描述
8498系列经济型压力变送器。其产品广泛应用于空压、液压、水处理、空调制冷、工程机械等。基于厚膜陶瓷原理的传感器具有经济性，耐腐蚀性好。Trafag瑞士精工品质。

典型应用
机械工具
液压机械
CHVAC
制冷行业
过程控制
水处理
制气行业
工控行业

性能指标
　

传感元件
厚膜陶瓷

测量范围
0…1至0…250bar

测量精度
±0.5% FS

压力类型
相对压力或者绝对压力

过程连接
G1/4"外螺纹或G1/4"内螺纹或NPT1/4"外螺纹

电气连接
DIN43650A

输出信号
4...20mA 或 0...10VDC

电气连接
DIN43650A

介质温度
-25…+85℃(≤ 60 bar)
-10…+85℃(≥ 60 bar)

操作环境
-25…+85℃ / 0…95%RH

供电电源
24VDC(15…30VDC)

外壳材料
不锈钢1.4435 (AISI316L)

EMC保护
EN/IEC61000

防护等级
IP 65

订货代码
8498.××.××××.××.××.××

　


PRESSURE MEASUREMENT EQUIPMENT
The Trafag product portfolio includes pressure switches, sometimes referred to as pressostats, as well as pressure transmitters.

Pressure switches
Trafag pressure switches are used when pressure has to be controlled or monitored via an electric on/off switching signal. These switches are available in various designs in respect of indication, switching capacity and approvals (CE, Ex, Shipbuilding, Railways) as well as the sensor system involved. In mechanical pressure switches, a pressure sensor actuates an electric micro switch. In electronic pressure switches, a pressure sensor signal controls relays or transistor outputs.

Pressure transmitters
Trafag pressure transmitters are used for the electronic measurement and evaluation of pressure values. They are available in many different versions with regard to pressure and electrical connections, measurement procedures, electric output signals, and approvals (CE, Ex, Shipbuilding, Railways). Two different sensor technologies are available, namely thin-film-on-steel (weld-sealed design without O-rings) and thick-film-on-ceramic. Trafag also develops and manufactures products specifically to customer requirements. Please contact us for further details.

Advanced technology and precision manufacture guarantee faultless operation especially in applications where equipment features such as shock-resistance, vibration stability, electromagnetic compatibility, long-term stability or temperature insensibility are essential.

MECHANICAL PRESSURE SWITCHES (PRESSOSTATS)
The mechanical pressure switches from Trafag are outstanding for their compact design and high-precision micro-mechanics specially developed and manufactured by Trafag itself. These switches can be installed in any position and need no electric power, making them particularly versatile in application and fully site-independent.

Product programe
The following information provides an initial programme overview. The individual product features are not freely combinable with one another. Further information can be obtained by consulting Trafag product catalogues and data sheets.

Pressure measurement sensors



Piston
For hydraulic applications with frequent switching and abrupt pressure changes.

Metal bellows
For fine control of pressure in liquid, vapor, and gaseous media.
Membrane
For the measurement of liquid, vapor, and gaseous media in applications with high switching frequency, abrupt pressure changes and where a high level of overpressure safety is required.
Housings
Aluminum housings, some epoxy coated, seawater resistant. With or without vision panel for switchpoint indicator.

Methods of pressure measurement
Gauge pressure measurement (also in vacuum)
Single-point or differential pressure measurement
Pressure ranges (values given in bar)Differential pressure measurements
-1...6
-1...8
-1...12
-1...18
Gauge pressure measurements
0.02-0.25
0.03-0.4
0.03-0.06
0.05-1
0.6...3.4
0.9...1.5
0.2...1.6
0.2...2.5
0...4
0...6
1...10
1...16
2...25
4...40
6...60
10...100
16...160
25...250
40...400
60...600
Pressure connection
Pressure connection in brass, stainless steel or aluminum with. for instance, the following female threads:
　

G1/8"
G1/4"
M10x1
M12x1.5
Micro-switch models


　
Various switching capacities

Verschiedene Schaltdifferenzen Various differential gaps (fixed value or adjustable)
Gold-plated switching contacts
Versions for enhanced vibration stability
Switchpoint settings
For standard products, the switchpoint is set by the user. On request, Trafag carries out setting of the switchpoint in line with the specifications of the customer. In such a case, the devices can be supplied complete with calibration certificate upon request.
Electrical connections
All pressure switches are equipped with a clamp or plug-in connection.
Temperature ranges (°C)
Operating temperatures: 0...80/-30...65/-20...70/-25....85/ -40....125
Media temperatures: 0...80/-40...85/-30...100/-25...120/ -15...150/-40...150 　
IP protection rating
IP65
Special approvals
Various certifications such as Ex, Shipbuilding, Railways
Accessories
There is a large choice of accessories such as pressure connector adaptors, pressure peak pulsation dampers, snubbers, etc.
　




» Download data sheet Diagnostic Valve Block H72242
» Download data sheet Accessories H72258
Customized products
Trafag also specially develops and manufactures pressure switches to customer specification.
PRESSURE TRANSMITTERS
At the very heart of Trafag pressure transmitters are pressure sensors based on either thin-film-on-steel or thick-film-on-ceramic technology derived from own in-house development and production. This ensures that the pressure sensors and associated electronics are perfectly attuned to one another, a feature subsequently successfully confirmed through reliable function and long serviceable life.

Trafag is a technology pioneer in the miniaturization of rugged pressure transmitters.

Product programme
The following information provides an initial programme overview. The individual product features are not freely combinable with one another. Further information can be obtained by consulting Trafag`s product catalogs and data sheets.

Sensor technologies



Thin-film-on-steel technology:




Measurement is effected according to the strain gauge principle. Through the force effect of the sample medium, the strain gauge bridge is deformed, changing its electrical characteristics.


Features:
Very good long-term stability
Ability to endure elevated medium temperatures
Completely weld-sealed sensor system made of stainless steel without O-rings
Very high resistance to overpressure; ideal for rated values up to 2000 bar
Thick-film-on-ceramic technology:



　
Measurement is effected according to the strain gauge principle. Through the force effect of the sample medium, the strain gauge bridge is deformed, changing its electrical characteristics.

Features:

Resistant to aggressive media
Ideal for low-pressure ranges
Sealed with an O-ring
Piezo-resistive systems:



If a force is applied to a silicone crystal, this will change its specific electrical resistivity. In the piezo-resistive process, pressure is indirectly transferred to the silicone crystal via a diaphragm backfilled with silicone oil.
Features:

Ideal for very low pressure ranges
Large degree of freedom in arrangement of pressure connections (e.g. front-flush diaphragms)
Housings
The housings of Trafag pressure transmitters are all made of highly resistant stainless steel material.


Pressure measurement methods
Absolute and gauge
Single or differential pressure measurement
Pressure ranges (values given in bar)
Differential pressure measurements
-1...1.5
-1...5
0...1
0...2.5
0...6
0...10
0...16
Gauge pressure measurements
-1...9
-1...16
0...0.1
0...0.16
0...0.2
0...0.4
0...0.6
0...1
0...1.6
0...2.5
0...4
0...6
0...10
0...16
0...25
0...40
0...60
0...100
0...250
0...400
0...600
0...1000
0...1600
0...2000
Pressure connections
The connections are made of materials such as stainless steel or brass.

Examples of threaded connections:

Male threads:
G1/4"
G1/2"
M10x1
M14x1.5
M18x1.5
7/16"-20UNF
NPT 1/4
Female threads:
NPT 1/4
G1/8"
G1/4"
M10x1
M12x1.5
Diaphragm versions:
Internal
Frontal
Front-flush
Signal outputs
4...20mA
0...10VDC
0...5VDC
1...6VDC
0.5...4.5VDC ratiometric
RS485
CANopen
Relay
Transistors
Switchpoint settings
For standard products, the switchpoint is set by the user. On request, Trafag carries out setting of the switchpoint in line with the specifications of the customer. In such a case, the devices can be supplied complete with calibration certificate upon request.

Electrical connections
DIN43650A
DIN43650C
DIN72585
M12
Cable
Alternative types of connection can also be manufactured.
Temperature ranges (°C):
Operating temperatures: -25....85/-25...125/-40....125
Media temperatures: -25...125/-40...125/-50...135/-25...200

IP protection ratings
IP65
IP67
IP68
Special approvals
Various certifications such as Ex, Shipbuilding, Railways

Pressure peak pulsation dampers
All pressure connections with G1/4" outer thread are prepared for incorporation of a pressure peak pulsation damper.

Accessories
» Download data sheet Diagnostik Valve Block H72242
» Download data sheet Accessories H72258
Customized products
Trafag also specially develops and manufactures pressure switches to customer specification.

THERMOSTATS
Trafag thermostats are available for the following tasks:

monitoring of room temperature in many different areas of application
monitoring of room temperature in many different areas of application
The temperature sensors can by choice be supplied fitted directly on the housing or apart.

Product programme
The following information provides a preliminary programme overview. The individual product features are not freely combinable with one another. Further details of profile of each product type can be obtained by consulting our product catalogues and data sheets.

Temperature measurement principle
Single, double, or differential measurement

Temperature ranges (°C)
-45...15
-30...40
-30...30
-20...40
-10...80
-10...35
-10...25
0...30
0...35
0...45
0...60
5...15 (Frosti)
5...35
5...95
10...40
10...45
10...55
10...70
10...80
15...30
20...85
20...110
20...115
20...150
20...230
40...300
70...350
Operating temperature (°C):
Ambient temperature at which the device may be operated:

-30...50/-30...70 /-30...85 /-15...70

Sensor types



The capillary tube sensors differ in method of connection:
Sensor fixed directly at the housing
Sensor remote from the device (e.g. at very high measurement temperatures, or for remote positioning of sensor and device due to separate disposition of measurement signal loop and measuring point)
» Download data sheet Sensors and Protection Tubes H72114
» Download data sheet Sensors and Protection Tubes H72163
Protection against breakage of capillary tube (option)
Protection against breakage of a capillary tube is an element of safety. Should the capillary tube break or leak, the micro switch switches to off as if the set limit temperature had been reached.

Types of housing
Polymer: For protected indoor use
Metal: For industrial in- or outdoor use under harsh conditions
Micro-switch versions



　
Different switching capacities
Varied differential gaps (fixed value or adjustable)
Gold-plated switching contacts for Ex applications
Versions for added stability against vibrations
Types with 1 or 2 micro switches (partly with adjustable intervals)
Micro switch reset (option)

The thermostats can be supplied optionally with a reset button. After switching of the micro switch, the switch maintains this condition until it is manually reset. This can be important in the case of safety-relevant applications (e.g. overheating protection). Depending upon device model, the reset button is situated as follows:

inside the device (housing must first be removed to gain access to the button)
outside the device (direct access to the button from outside the device)
IP protection ratings
IP54
IP65
Switchpoint settings
To set the switchpoint, there are two possibilities:

via adjusting screw (adjustment by screwdriver)
via adjusting knob (adjustment by hand)
The switchpoint is adjusted according to a scale. Depending on device model, the adjustment knob is situated as follows:

inside the device (housing must first be removed to gain access to the knob)
outside the device (direct access to the knob from outside the device)
For standard products, the switchpoint is set by the user. On request, Trafag carries out setting of the switchpoint in line with the specifications of the customer. In a such case, the devices can be supplied complete with calibration certificate upon request.

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