3-Phase Meter Telstar CT

Functions

• Commissioning with the free smart-me app.

• Inputs for external current transformers from 0.01 to 6A output

• Create bills with the smart-me billing tool.

• Control with if/then actions or event actions

• Visualizations

• Dry contact outputs for control of external devices, one of them with 8A relay

• Floating contact input for tariff signal or digital input

• Interfaces via API, CSV, MSCONS and IS-E

• Encrypted real-time data connection to the smart-me cloud

Technical requirements for the current transformers

A wide variety of current transformers can be used with the Telstar CT. The basic requirements are as follows:

• Current transformer ratio: 1: 1 to 20,000: 1 to 5: 5 to 20,000: 5
  The secondary number may be an integer number between 1 and 5
  The primary number may be an integer number between 1 and 20'000

• Output current: 1A to 5A

• Output power: at least 1VA or higher 

• Type: open or closed

• Accuracy class: 1 or better*

* For billing purposes, calibrated converters are required that must meet at least class 0.5 or better. This is achieved almost exclusively with closed type current transformers.

Suggestionsfor transformers and accessories can be found on the page: Current transformers and accessories

Display

The meter has a rolling display. The items described below are displayed in sequence. fter the last point, the first point is displayed again.

Measurements and Wiring

*.DXF and *.DWG files of the meter, can be found in the ZIP archive under downloads

Dimensions [mm]

Wiring diagram

Key functions

T1 button for installation

When T1 button is pressed for 10 seconds, it creates a local WiFi for installation

T1 + T2 Restart

Press T1 and T2 buttons simultaneously for 10 seconds to force a reboot.

T2 special functions

In short: If T2 is pressed for >2s, the green LED lamp switches (from on to off or from off to on). If this is activated, it shows the connection status

Glowing green: connected to smart-me cloud

Flashing green: connection is currently established, at the moment no connection

Long: If T2 is pressed> 8s, the display of the power is switched between active and reactive power. In addition, the calibration pulse LED alternates between active energy and reactive energy.

Very long: If T2 is pressed> 14s, the S0-0 pulse output is switched between active power and reactive power.

Note: This setting only changes the display, not in the smart-me cloud (app and website). If the reactive energy is to be displayed in the cloud, this must be done in the general settings.

Configuring inputs and outputs

The smart-me meter has two outputs and one input, which can be used as pulse inputs and outputs or as a switchable potential-free contact. Details can be found here. 

Configuring inputs and outputs

The Telstar CT has two digital outputs and one digital input, which can be used as pulse inputs and outputs or as a switchable dry contact. Details can be found on the Inputs and Outputs wiki page. 

The Telstar CT has a relay at one digital output, which can switch up to 8A.

Mesh-Technologie

In the event of very weak or no WiFi reception, the Telstar 80A automatically connects to another neighboring meter within range via the mesh function. This meter then takes over communication with the smart-me cloud. The mesh technology ensures that the meters have a higher availability to the smart-me Cloud. It is not possible to deactivate the mesh function on the meters. Specific restrictions apply when Modbus TCP is enabled.

Current Transducers and Accessories

Suggestionsfor transformers and accessories can be found on the page: Current transformers and accessories

Shipping information

Item number: 212062
Article name: 3-Phasen Energiezähler Telstar CT MID Wifi
Customs tariff number: 9028.3019
Weight with packaging: 315g