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Telemetry with the GSM network

With wireless technology it is possible to achieve telemetry of distant sensors using the popular GSM network and DPS-Promatic Telecom Control Systems (TCS) boards. Sensors can be 4-20 ma type, 1-5 V type or others on request.

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TCS can read standard 4-20 ma or 1-5 V sensors

With wireless technology it is possible to achieve telemetry of distant sensors using the popular GSM network and DPS-Promatic Telecom Control Systems (TCS) boards. Sensors can be 4-20 ma type, 1-5 V type or others on request.
TCS 3.0 Industrial board can come with a built-in signal conditioner for a 4-20 ma or for a 1-5V sensor.
A menu in the TCS OS lets you set the 2 low and the 2 high thresholds, as follows:

Analog In 4-20mA = 50%
1) Lower Threshold 10%
2) Low Threshold 25%
3) High Threshold 60%
4) Higher Threshold 80%
5) Alarms = Disabled
E) Exit

The value in the first line is what the TCS reads at the moment from the sensor.
The value is expressed in percentage. 0%=4 ma, 100% equals 20 ma.
If no sensor is connected you will get a SENSOR ERROR (if alarms are enabled).
Example: if thresholds are set as above, and value is 50%, no alarm will be sent. If the signal goes to 18% (below 25), an alarm will be sent, if it goes to 7% (below 10) another alarm will be sent. Same will happen if it will goes above 60% or above 80%.

World Logic LTD is the representive for Hong Kong and China
of DPS-Promatic Srl ITALY
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 Last modified:2007/09/11
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