Analogue Signal Control Unit CSA-1

Product Description

Description of product

The main purpose of using the CSA-1 unit is the possibility of connecting sensors with voltage analogue outputs of 0,4 – 2V to the CST system. The unit not only does the measurements and transfers them, but also supplies the connected sensors with power. Application of the control unit highly extends the measurement capability of the CST-40(A) unit and contributes to an increase of its capacity even up to 160 sensors (40 lines x 4 sensors per channel).

To each CST-40 supply-transmission line a single CSA-1 control unit can be connected, to which up to four analogue sensors can be linked. At the CST-40(A) query, CSA-1 unit transfers information on the size of an analogue measurement signal, and on existing damage measurement lines such as a shortcut or an overload of a power supply line. The measurement datas are processed in the CST system.

The CSA-1 control unit does not require an operator’s intervention. All control functions and configuration data are transmitted from the CST-40(A) unit. On connecting the unit to a CST- 40(A) line it starts operating automatically and it awaits the configuration data from the system. The data contain a number of linked sensors (1 to 4), which is equivalent to powering on chosen sensors. While powering on individual sensors the total load power input for the CST-40(A) line is being checked.

An overload or a shortcut detected on a sensor supply line leads to its disconnection. Analogue values are measured and processed by the CPU cyclically. The system takes data from 0V to 2,5V, but valid measurement ranges from 0,4V do 2V. Values below 0,4V and above 2V show excess of the measurement range of a sensor, damage to the sensor line or damage to the sensor itself.
Bits of information on run statuses of individual channels and their metrological values are transferred, displayed and stored in the CST system.

Technical Data

Transmission mode:	digital
Max. length of a supply-transmission line:	8 km
Number of measurement lines:	4
Protection index cover:	IP-65
Explosion-proof mark:	I M1 Ex ia I
Type test certificate:	KDB 05ATEX039X