NAGANO KEIKI压力开关CQ21系列CQ21-141介绍及选型
日本NAGANO KEIKI长野计器成立于1896年，是一家专门做压力测量技术行业的公司，崇尚“以科技为本”的理念 ，是压力计和压力传感器的领导者之一。近年来公司产品阵容也从压力测量发展为相对全面德测量控制技术。
NAGANO KEIKI长野计器主营产品有压力变送器，压力开关，压力传感器，数字压力表等等。
NAGANO KEIKI压力开关CQ21系列技术参数
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ltem
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Description
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Model
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CQ21: Water -proof construction
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Fluid
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Gas or Liquid (No freezing)
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Operating environment
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CQ21: Places where there are no inflammable liquids or gases
which may cause ignition or explosion under normal conditions.
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Mounting
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Panel mounting
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Connection
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G3/8B, G1/2B, R3/8, R1/2, 3/8NPT, 1/2NPT
Please contact us about connection without the description.
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Wetted parts material
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Bourdon tube: SUS316
Socket: CQ21; CAC203 or SCS14
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Pressure range
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0to0.1→0 to 70 MPa
-0.1 to0→-0.1 to 2 MPa
* 20~100 kPa (receiver) also available. Contact NKS for details.
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Proofpressure
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1. .5 times the pressure range
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Operating temperature
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CQ21: -20 to 60 °C
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Accuracy
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土1 %max.P. (Compound:土1 %F.S.)
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Setting accuracy
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土3%max.P. (Compound:土3%F.S.)
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Temperature coefficient
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0.05%max.P./°C (Compound: 0.05%F.S./fC)
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Dead band
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Specification 2 references.
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Switch
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Micro switch
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Quantity of switch
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1 Contact
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Setting system
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Internal adjustment type, with setting scale and setting lock
(The set adjustment axis is locked at the set value specification.)
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Outlet for electric wire
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CQ21: Conduit type: G3/4 female (Standard), Others
Gland: JIS 20b (Standard), Others
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Case material, finishing
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CQ21: ADC12, gray crystal painting
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Case structure
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CQ21: Water- proof type (IP66)
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Weight
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CQ21: Approx. 1.5 kg
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NAGANO KEIKI压力开关CQ21系列介绍及选型
这是一种结构简单的压力开关，其中波登管应用于压力传感元件，其移动直接作用于微动开关。这些压力开关有很多是为过程工业的报警和控制而制造的，其中很多开关在发电厂和化工厂有应用效果。
根据波登管移动直接作用于微动开关的结构，构成部件的数量少并且表现出优异的耐用性。
压力范围从低压扩展到高压：0.1 MPa 到 70 MPa，符合广泛的范围。
该压力开关主要针对火力发电厂开发，接线空间大，维护方便。
This is a pressure switch with simple construction in which a Bourdon tube is applied to the pressure sensing element and its move directly functions the microswitch. A lot of these pressure switches have been manufactured for the warning and control of process industry, and a lot of these switches have application results in power and chemical plants.
According to the construction by which a Bourdon tube move directly functions the microswitch, the number of constituent parts is small and excellent durability is demonstrated.
The pressure range extends extensively from low pressure to high pressure:0.1 MPa to 70 MPa, complying with extensive ranges.
This pressure switch has been developed mainly for thermal power stations, equipped with a large wiring space, assuring easy maintenance work.
NAGANO KEIKI压力开关CQ21系列其他常用型号：
NAGANO KEIKI CQ21-133
NAGANO KEIKI CQ21-141
NAGANO KEIKI CQ21-143