Description

SPT type current transformer using inductive transmitter principle, isolation sampling, according to the size of the current through the output DC voltage proportional to the current form of the corresponding information or 4--20mA.

SPT type is divided into the output DC voltage signal and 4--20mA two series, the corresponding model number, if the first use, it is recommended to browse the following information to avoid wrong type selection, bring inconvenience.

First, selection guide:

1, SPT no matter what type, straight through current must be AC. If you want to detect DC, can choose SPZ series.

2, the output DC voltage signals have two selectable 0--5VDC or 0--10VDC, the transmitter output voltage signal without external power supply, DC voltage signal corresponding relationship between the terminal and the size of the current through the direct output. For example, SPT010-RD-200, when the maximum current reaches the selected range through the corresponding output voltage 10VDC.

3, the output 4--20mA corresponds to the series, the transmitter uses two wire system, the external must provide 12--24VDC can work.

Two, model name Description

Take SPT010-RD-200, SPT420-CP-050 as an example to illustrate

SPT010, SPT005 or SPT420 is the three series of SPT, respectively, the output DC voltage 0--10V, 0--5V and output 4--20mA.

RD--- represents a circular fixed port, that is, the line must pass through the hole.

CP--- on behalf of the clamp port, the induction switch can be opened.

200--- represents straight through current 200A, third gear 0--100A/0--150A/0--200A

050--- represents straight through current 50A, third gear 0--10A/0--20A/0--50A

The specific type and size, the size of the center hole, there is a detailed introduction of sixth parts in the specification.

Reminder: because the clamp port buckling surface for metal contact exists, after long time working, bad contact or contact corrosion possibility, so the reliability of the clamp port than the fixed circular mouth is low, and the clamp port with more complex manufacturing process, high cost. Suggested that the user can use the circular fixed mouth, as far as possible to choose a round mouth.

Three, security matters and support

1, SPT series induction switch isolation sampling, the device itself does not have the harm, but in the installation, debugging of the device, please recommend strictly according to the electrician operation standard.

2, the design circuit of the device, please pay attention to the actual operation of devices that need to meet through current, positive and negative polarity etc., improper use may cause direct damage and even shorten the lifetime of the devices.