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威卡0.4KPA差压开关DW03UN
- 品牌：
- 型号：
- 产地：
- 分类：WIKA差压开关
- 业务电话： 029-89390083 86696828
德国wika差压控制器 DW03UN差压开关 适用于低量程范围的差压开关
可选择的设定范围：0.3-2.5mbar 0.4-4mbar 0.4-6mbar 0.4-10mbar 0.7-16mbar
主要参数
Standard version
Measuring system
Single diaphragm
For clean gas or non-condensing vapour only
Switch enclosure
Stainless steel 316L, tamper-proof. Laser-engraved product
label from stainless steel.
Ingress protection
IP66 per EN/lEC 60529, NEMA 4X
Permissible temperature
Ambient Tamb: -10 ... +60 °C
Medium TM: -10 ... +60 °C
Switch contact
Micro switches with fixed dead band
1 x SPDT (single pole double throw)
Set point adjustment
The set point can be specified by the customer or factory-set
within the setting range. Subsequent adjustment of the set
point on site is made using the adjustment screw, which is
fastened to the switch and thus secured against loss.
Repeatability of the set point
≤ 1 % of span
Please specify:
Set point, switching direction for the contact, e.g.:
Set point: 5 mbar, falling
For optimal performance we suggest to adjust the set point
between 25 ... 75 % of the span.
Example
Setting range: 0.4 ... 10 mbar with one switch contact
Repeatability: 1 % of 9.6 mbar = 0.096 mbar
Dead band: (see table setting ranges)
2 x repeatability + dead band = 2 x 0.096 mbar + 0.3 mbar
= 0.492 mbar.
Rising pressure: Adjust set point between 0.892 ... 10 mbar.
Falling pressure: Adjust set point between 0.4 ... 9.508 mbar.
Process connection
Lower mount (LM)
■ ¼ NPT female (standard)
■ ½ NPT, G ½ A, G ¼ A male via adapter
■ ½ NPT, G ¼ female via adapter
■ M20 x 1.5 male via adapter
Wetted parts
Diaphragm: Glass-fibre reinforced NBR
Process connection: Aluminium casting alloy,
Anticorodal® UNI 3571
Other parts: Stainless steel, epoxy resin coated
Electrical connection
■ ½ NPT female (standard)
■ ¾ NPT, M20 x 1.5, G ½, G ¾ female
■ Cable gland non-armoured, nickel-plated brass
■ Cable gland non-armoured, stainless steel (AISI 304)
■ Cable gland armoured, nickel-plated brass
■ Cable gland armoured, stainless steel (AISI 304)
■ MIL connector, 7-pin, DTL 5015
For cable connections to the internal terminal block use wire
cross-sections between 0.5 ... 2.5 mm2.
For the grounding cable connection to the protective
conductor use max. 4 mm² for the internal and external
screw.
Dielectric strength
Safety class I (IEC 61298-2: 2008)
Mounting
■ Mounting fixture from stainless steel (AISI 304)
■ Option: Mounting bracket for 2" pipe mounting (AISI 304)
Weight
■ approx. 2.2 kg
DW03UN威卡差压开关的应用
差压监控和过程控制
对过程仪表有高安全要求应用的行业，如空调暖通及电厂（含核电厂）
气体或干燥介质
DW03UN威卡差压开关的功能特性
电气负载开关无需电源
坚固的316L不锈钢外壳，IP66防护等级，符合NEMA 4X标准
量程范围：0.03 ... 0.25 kPa 至 0.07 ... 1.6 kPa，高达30 kPa的工作压力（静压）
可选本安型Ex ia
1个压力设定点，单刀双掷，开关负载额定值高达AC 250 V/10
DW03UN威卡差压开关的描述
该款高质量差压开关专为有高安全要求的应用而研发，不仅品质***且符合*** ***产品制造标准，
可实现可靠监控。在生产中，开关在每个步骤都经由质量管理软件跟踪记录，而且在成品后经过了***的测试。
为了保证操作尽可能地灵活，该差压开关配备了微动开关，可以直接开关高达10A / AC 220V 的电气负载。
DW03UN型差压开关采用隔膜测量系统，极为坚固耐用，实现了***运行特性和***高测量性能（重复精度＜1%量程）。
底部过程连接中心距为54mm， 便于安装标准阀组。
可选择的设定范围：0.3-2.5mbar 0.4-4mbar 0.4-6mbar 0.4-10mbar 0.7-16mbar
主要参数
Standard version
Measuring system
Single diaphragm
For clean gas or non-condensing vapour only
Switch enclosure
Stainless steel 316L, tamper-proof. Laser-engraved product
label from stainless steel.
Ingress protection
IP66 per EN/lEC 60529, NEMA 4X
Permissible temperature
Ambient Tamb: -10 ... +60 °C
Medium TM: -10 ... +60 °C
Switch contact
Micro switches with fixed dead band
1 x SPDT (single pole double throw)
Set point adjustment
The set point can be specified by the customer or factory-set
within the setting range. Subsequent adjustment of the set
point on site is made using the adjustment screw, which is
fastened to the switch and thus secured against loss.
Repeatability of the set point
≤ 1 % of span
Please specify:
Set point, switching direction for the contact, e.g.:
Set point: 5 mbar, falling
For optimal performance we suggest to adjust the set point
between 25 ... 75 % of the span.
Example
Setting range: 0.4 ... 10 mbar with one switch contact
Repeatability: 1 % of 9.6 mbar = 0.096 mbar
Dead band: (see table setting ranges)
2 x repeatability + dead band = 2 x 0.096 mbar + 0.3 mbar
= 0.492 mbar.
Rising pressure: Adjust set point between 0.892 ... 10 mbar.
Falling pressure: Adjust set point between 0.4 ... 9.508 mbar.
Process connection
Lower mount (LM)
■ ¼ NPT female (standard)
■ ½ NPT, G ½ A, G ¼ A male via adapter
■ ½ NPT, G ¼ female via adapter
■ M20 x 1.5 male via adapter
Wetted parts
Diaphragm: Glass-fibre reinforced NBR
Process connection: Aluminium casting alloy,
Anticorodal® UNI 3571
Other parts: Stainless steel, epoxy resin coated
Electrical connection
■ ½ NPT female (standard)
■ ¾ NPT, M20 x 1.5, G ½, G ¾ female
■ Cable gland non-armoured, nickel-plated brass
■ Cable gland non-armoured, stainless steel (AISI 304)
■ Cable gland armoured, nickel-plated brass
■ Cable gland armoured, stainless steel (AISI 304)
■ MIL connector, 7-pin, DTL 5015
For cable connections to the internal terminal block use wire
cross-sections between 0.5 ... 2.5 mm2.
For the grounding cable connection to the protective
conductor use max. 4 mm² for the internal and external
screw.
Dielectric strength
Safety class I (IEC 61298-2: 2008)
Mounting
■ Mounting fixture from stainless steel (AISI 304)
■ Option: Mounting bracket for 2" pipe mounting (AISI 304)
Weight
■ approx. 2.2 kg
DW03UN威卡差压开关的应用
差压监控和过程控制
对过程仪表有高安全要求应用的行业，如空调暖通及电厂（含核电厂）
气体或干燥介质
DW03UN威卡差压开关的功能特性
电气负载开关无需电源
坚固的316L不锈钢外壳，IP66防护等级，符合NEMA 4X标准
量程范围：0.03 ... 0.25 kPa 至 0.07 ... 1.6 kPa，高达30 kPa的工作压力（静压）
可选本安型Ex ia
1个压力设定点，单刀双掷，开关负载额定值高达AC 250 V/10
DW03UN威卡差压开关的描述
该款高质量差压开关专为有高安全要求的应用而研发，不仅品质***且符合*** ***产品制造标准，
可实现可靠监控。在生产中，开关在每个步骤都经由质量管理软件跟踪记录，而且在成品后经过了***的测试。
为了保证操作尽可能地灵活，该差压开关配备了微动开关，可以直接开关高达10A / AC 220V 的电气负载。
DW03UN型差压开关采用隔膜测量系统，极为坚固耐用，实现了***运行特性和***高测量性能（重复精度＜1%量程）。
底部过程连接中心距为54mm， 便于安装标准阀组。