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Pag. 9
1. Introduction
1.1 Description
The calibration keypad STG can be used for all the gas detectors of Sensitron s.r.l.
The calibration keypad is supplied with an adapter for connection to SMART P detectors.
The calibration keypad enables the following*:
³
Zero calibration;
³
Span calibration;
³
4-20 ma output calibration;
³
To change the alarm thresholds and its hysteresis;
³
To reset the device;
³
To couple detector with the sensor head “Head pairing”;
³
To change or visualize only the Baud Rate;
³
To set the address of the RS485 bus;
³
To show the firmware version of the detector;
* The mentioned operations are function of the gas detector in use, see Table 3 for further
clarifications.
The keypad can be connected both when the detector is powered on and operating and
when the detector is off. Before opening the detector enclosure, be sure that all safety pre-
cautions have been considered.
To connect the keypad, refer to the following chapter.
