关于SWAIN METER电流环及电流表常见问题及应用

Swain Meter常见问题

Swain Meter FAQ

什么是Swain Meter？

Swain Meter是精密制造和校准的便携式仪表，配有夹钳和夹环，用于测量大气、地下或水下导体上的电流大小和方向。它们适用于交流或直流。适用于可能存在腐蚀问题的管道、管道、电缆、支架、钢筋和其他结构。

What are Swain Meters?

Swain Meters are precision built and calibrated portable meters, coupled with clips or clamps, used to measure current magnitude and direction on conductors in the atmosphere, underground, or under water. They as suitable for AC or DC. They are ideal for pipe, pipelines, cables, supports, rebar and other structures where corrosion may be a problem.

Swain Meters与其他钳形仪表有何不同？

所有Swain Meters均采用磁误差减少 (MER) 技术。这大大降低了地球磁场的影响，这会在所有其他钳形仪表的测量中引入误差。

What sets Swain Meters apart from other clamp-type meters?

All Swain Meters utilize Magnetic Error Reduction (MER) technology. This greatly reduces the effect of the Earth’s magnetic field, which introduces errors into the measurements of all other clamp-type meters.

夹钳和夹环有什么区别？

夹钳是单件式弹簧加载传感器，可以通过压缩手柄进行安装和拆卸。夹钳的尺寸范围从 3/4”到 6”直径。夹环是较大的传感器。它们被制造成匹配的半圆，并用螺栓固定在导体周围以进行测量。夹环的尺寸范围从 6”到 60”直径。 可按需生产定制尺寸。

What is the differences between clips and clamps?

Clips are single-piece, spring loaded sensors, which can be installed and removed by compressing a handle. Clips range in size from 3/4” to 6” diameter. Clamps are larger sensors. They are manufactured as matching half-circles, which are  and bolted together around the conductor to perform  measurements. Clamps range in size from 6” to 60” diameter. Custom sizes can be produced on demand.

MER和MER2传感器有什么区别？

MER代表Magnetic Error Reduction，它可以最大限度地减少磁干扰问题。MER是较旧且较便宜的传感器（夹钳和夹环）技术。MER2是一种更新的传感器技术，与MER相比，它可将磁干扰减少2或3倍，并将零误差减少一半。

What is the difference between MER and MER2 sensors?

MER stands for Magnetic Error Reduction, which minimizes magnetic interference problems. MER is the older and less expensive sensor (clip and clamp) technology. MER2 is a newer, patented sensor technology, which reduces magnetic interference by a factor of 2 or 3 and cuts zero errors in half compared to MER.

Swain Meters可以达到什么精度？

Swain Meters在3/4”到13”夹钳和夹环上的分辨率为1毫安 (mA)，在14”到24”夹环上的分辨率为1到10 mA，在15” 到60”的夹环上分辨率为1到100 mA。

What precision can a Swain Meter achieve?

Swain Meters are capable of a 1 milliampere (mA) resolution on 3/4” to 13” clips and clamps, 1 to 10 mA on 14” to 24” clamps, and 1 to 100 mA resolution on 15” to 60” clamps.

Swain Meters是用于防腐蚀、故障定位和质量保证的现场便携式非接触式电流表。它们在正常的现场条件下准确、方便且无故障，即使对于水下测量也是如此。

Swain Meters are field-portable, non-contact ammeters for corrosion protection, fault location, and quality assurance. They are accurate, convenient, and trouble-free under normal field conditions, even for underwater measurements.

确定电流大小和方向。

定位短路和干扰。

非常适合阳极、天然气和石油管道、混凝土和钢柱的电流测量。

Determine current magnitude & direction.

Locate shorts & interference.

Ideal for current measurement for anodes, gas & oil pipelines, concrete & steel columns.

Swain Meter应用

Swain Meter Applications

能源传输——石油、天然气、电力

杂散电流识别

法兰泄漏

感应交流测量

直埋以进行长期监测

Energy transmission – oil, natural gas, electricity 

Stray current identification

Flange leakage

Induced AC measurement

Direct burial for long-term monitoring

腐蚀控制

结构识别

外部接触位置

CP 系统电路诊断

Corrosion control 

Structure identification

Foreign contact location

CP system circuit diagnostics

发电

电池浮充和负载电流

塔柱干扰

盖线电流消耗

接地系统电流消耗

Power generation 

Battery float charge and load current

Tower leg interference

Guy wire current drain

Grounding system current drain

海洋

码头/平台阳极电流

螺旋桨漏电流

海底至 700 英尺深处

Marine

Dock/platform anode current

Current leakage from propeller

Undersea to depths of 700 ft

汽车

电气系统中的电流泄漏

交流发电机和电池诊断

Automotive

Current leakage in electrical system

Alternator and battery diagnostics

乳制品

制奶过程中的交流识别

Dairy

AC identification in milking process

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