BSC-50E is an ultra low power, wireless RTU with data logging and alarming capabilities. The battery powered RTU incorporates a quad band GSM/GPRS modem, four digital inputs, two analog inputs, one pulse counter input and multiple excitation options for powering measuring transducers. A Lithium Thionyl battery provides autonomous operation for over 10 years.

The Infinite advantage

BSC-50E utilizes a dual processor architecture in order to combine extreme low power consumption with advanced processing and communication capabilities. A system controller (ultra low power MCU) performs measurement, data logging and alarm condition detection in continuous operation. A powerful communication processor, switched on and off by the system controller, performs data processing and controls communications through the internal wireless MODEM. The result is up to 50% power saving comparatively to respective units of the competition, while performing the same tasks.

Modes of operation

Modes of operation include autonomous battery operation and 9 to 24V external power supply operation with uninterruptible transition to battery operation during power outage.

Measurements & Data Logging

The digital inputs are scanned in closed loop by the system controller for detecting an alarm condition. Analog input scaling and alarm limits are user definable. The analog inputs are sampled according to the user defined sampling rate. Sampling rate and sampling duration affect the battery life according to the transducer power supply requirements. Firmware V:7.0 introduces a dual set of sampling, logging and data transmission rates. The basic set can be superseded by an alternate set on event. Digital input states, analog input and counter values can be used as trigger sources for rate changes. Ultra low power stand by mode followed by frequent data recording and transmission can be selected to fit the application needs, while maximizing the battery life.

Transducer excitation

The unit provides multiple excitation options for measuring transducers.

Alerting & messaging

SMS announcements include alert messages and periodical status messages for verifying unit availability. The unit supports discrete alerting for several users. Message texts are user definable.

Setup and Remote Configuration

The unit can be programmed locally through the serial port or remotely via SMS by using simple ASCII configuration commands. The command set features commands for configuring input alarm parameters, scaling parameters and alarm limits, timing parameters and defining user groups. BSC-50E can be remotely reconfigured by sending configuration commands via SMS to the unit during the periodical status message processing.

Ordering Codes

Code Description
BSC-50 E Autonomous RTU/Datalogger


Power supply
Supply voltage Internal: 3.6V, 13Ah Lithium Thionyl battery (Saft LSH-20 recommended)
External: 9..24 VDC, 26VDC max
Supply current Continuous operation: 40μA, Messaging: average 30mA, 2A peak
Processing units
System controller Ultra low power MCU
Communication processor ARM 9 processor
Data memory Ferroelectric RAM
Digital inputs 4, dry contact, 0-30VDC
Pulse counters 1, 40Hz, common with DI 4
Sensor excitation 7V/140mA or 12VDC/80mA, 5VDC/100mA, 3.3V/200mA
Analog inputs 2, Range: 0-1V/0-1.75V/0-2.5V, AI2: 0-20/4-20mA option, 10 bit resolution
Wireless modem Quad Band GSM/GPRS (850/900/1800/1900MHz)
RF connector SMA Jack
Serial interface RS232C, up to 115 kBit/s
Temperature -40°...65°C, operating
Indications 2 LED, GSM network status, operation status
Dimensions 130 x 130 x 75 mm
Protection IP66
Weight 0.5 kg (without battery)
Product Brochures
Document File
BSC-50E Autonomous RTU/Data Logger Brochure V:3.0 BSC50E English v4.5.pdf
BSC-50E, Autonomer RTU/Datenlogger, Broschüre V:3.0 BSC50E German v4.5.pdf
WAT, Cloud Server Brochure V:1.1 WaT Datasheet.pdf
Technical Documents
Document File
LSH-20, D-size, Lithium-thionyl battery LSH20.pdf
BSC-50 battery lifetime calculator BatteryLife
WA Manager User Guide V:6.0 WA Manager V6.0.pdf
Application Documents
Document File
Earth Ground Fault Monitoring in urban MV Stations Earth Ground MV substations.pdf
Sewer water monitoring Sewer water monitoring.pdf
M2M Reservoir Level Control M2M Reservoir Level Control.pdf
Autonomous Intrusion Alarming via SMS Autonomous Intrusion Alarming.pdf
Document File
Autonomous RTUs presentation BSC50v4.pps