PRODUCT HIGHLIGHTS:   •  LOW POWER MODE OPERATION FOR GAUGERGSM   •  INTRINSIC SAFE BATTERY PACK FOR HAZARDOUS EXPLOSIVE AREAS LOW POWER MODE OPERATION FOR GAUGERGSM: A low power mode can be activated when GaugerGSM is electrically fed by X1PAK and PTS. In this mode of operation, the system follows four steps: PTS keeps GaugerGSM "OFF" for a sleeping time interval. When sleeping interval is over, PTS turns GaugerGSM to "ON". GaugerGSM takes a measurement and transmits the measured data. PTS turns GuagerGSM to "OFF" for another sleeping interval. Two variants to this general scheme are supported: Two different sleeping time intervals are supported plus a continuous ON state. PTS determines which sleeping interval to use depending on the measured level. Typically, a long sleeping interval (e.g. 4 hours) is used at low levels and short interval (e.g. 30 minutes) at mid levels. High measured level can keep GaugerGSM at a continuous "ON" state. GaugerGSM takes a measurement at each ON state and stores the data locally. A transmission of the logged data occurs once per pre-defined wake-up times. Up to 20 measurements may be stored. The main advantage for using low power mode is to extend battery life-time but real time alerts are not supported. The settings of the sleeping time intervals are all defined in the USB command LPST. With a 4-cell X1PAK holding TL-5930 batteries, sleeping time interval of one hour, SMS based operation and good cellular network coverage - 2 years of operation can be expected before battery replacement. INTRINSIC SAFE BATTERY PACK FOR HAZARDOUS EXPLOSIVE AREAS: X1PAK is a battery pack certified for use in hazardous (explosive atmosphere) locations. The pack is designed to power equipment in locations where a remote power supply is not available. Download and carefully read ATEX / IECEx certification for X1PAK. Closely follow the instructions and restrictions. Download:           X1PAK IECEx           X1PAK ATEX The equipment comprises two parts interconnected by a cable: Battery enclosure containing 3 or 4 LiSOCl2 cells in series Protecting circuit device containing current-limiting circuitry (PTS) Electrical and physical features: 3-cell or 4-cell versions with nominal voltage of 10.8V or 14.4V Series resistance of 25 Ohm / 45 Ohm (3 cell / 4 cell) 4-Cell enclosure dimensions: 8(h) x 16 x 14 cm3 Cell specification - see Tadiran cell TL-5930 Enclosure rating of IP67 Capacity of 19AH ATEX and IECEx certifications and restrictions: Ex II 2G, Ex ib IIB T3 (162°C) Gb, Ta=-30°C; to +70°C Allowed for use in ATEX zones 1 or zone 2 (Intrinsic safe) MUST be used with Tadiran cells TL-5930 only (not included) ! Capacitance and inductance of powered equipment are restricted ! Battery enclosure must be connected to powered equipment via PTS !