SD 11x sensors – intelligent temperature sensors for outdoors

The sensors of the serie SD 11x are intelligent microprocessor-controlled temperature sensors that are a result of cooperation with the company MIKROKLIMA s.r.o. They consist of a sensing element encased in a stainless steel (class EN X5CrNi18-10, DIN 1.4301) stem and of printed circuit boards encased in a plastic connection head provided with a cable outlet ending. The sensors meet the IP65 ingress protection requirements according to the EN 60 529 standard. The measured temperature range is -30 to +70°C. They are available in three basic variants:

1. SD 110 - with a simple AscII communication protocol corresponds with ADAM 4000 modules by ADVANTECH company. Thus, standard drivers for ADAM modules can be used in various control programmes. For easier operation, the green LED indicates if power supply is on and the red LED indicates that the module is communicating. The SD 1x0 module is provided by the INIT shorting jumper on its printed circuit board. If it is shorted when power is switched on, the module communicates on 00 address with 9600 Bd transfer speed without checksum.

2. SD 111 - the command structure corresponds with the ARION communication protocol, which is used among control systems by Amit company.

3. SD 112 - the command structure corresponds with the ModBus communication protocol.

SD 11x outdoor sensors are intended for temperature measurement in industrial areas or outdoors. A metal holder for sensor installation onto vertical surfaces is among available accessories. The sensors communicate by means of RS 485 bus and only the bus can control the sensors.

Communication inputs are protected to overvoltage. In case the module is placed as terminal on the line, a terminating resistor can be attached to the wiring by shorting the contacts (the switch SW placed next to terminals for communication lines connection).

All settings are stored in EEPROM memory. The electronic module is equipped with the WATCHDOG circuit, which safeguards proper program functioning in the microprocessor.

SD 11x sensors – intelligent temperature sensors for outdoors - prospectus