HI 504901: GSM Supervisor

• Interface between meters and cell phone or computer
• Current status notification in real time
• Self diagnostic capabilities

HI 504901 is an intelligent interface between HANNA instruments® meters with RS232 or RS485 port, and a GSM cellular phone or a local or remote computer with HI 92500 HANNA instruments® software. HI 504901 can acquire information about active alarms, errors, current status and real time values through two RS232 serial ports with the HI 8000 series, or through the RS485 port with the HI 504, HI 23, HI 24, HI 700 and HI 710 series, and with the HI 504910 transmitter. HI 504901 is also provided with one digital input (typically an alarm relay) from "non-intelligent" instruments, with only an alarm relay contact or another digital output signal. Moreover, the interface features one digital output and an input for enabling/ disabling the SMS sending function. LED indicators advise the user for error conditions, active alarms, signal coverage for the cellular module, digital output and cellular module status. HI 504901 can be completely configured through the HI 504901SW software provided with the instrument. Other important characteristics of the interface are the real time clock, self-diagnostic capabilities and internal backup battery which provides power supply and cause an alarm SMS sending in case of power failure.

HI 504901-1 (900/1900 MHz GSM supervisor) is supplied complete with 115 VAC/12 VDC power adapter, HI 504901SW configuration software and instructions. HI 504901-2 (900/1800 MHz GSM supervisor) is supplied complete with 230 Vac/12 VDC power adapter, HI 504901SW configuration software and instructions.