U7844M IoT Wireless Four channel Datalogger with pulse and two-state inputs, with built-in 2G modem

Technical data

Measured value

Two-state signal

Pulses


BINARY INPUT

Parameters of the voltage contact „L“ level input voltage:< 0,4 V(*);
„H“ level input voltage:> 2 V;
Minimum voltage applicable:0 V;
Maximum voltage applicable:+30 V DC
Parameters of the voltage-free contact Contact resistance in „switched-on“ state:< 10 kOhm;
Contact resistance in the „switched-off“ state:> 300 kOhm;
Contact voltage in the „switched-off“ state:ca 3 V;
Minimum state duration necessary for latching the state:1s


COUNTER INPUT

Counter parameters Range 24 bits (16 777 215), possibility of letting the counter overflow
Maximum pulse frequency configured for voltage input - max. 5kHz
configured for a voltage-free or open-collector transistor - max. 200Hz


GSM MODEM PARAMETERS

Quad-band 850/900/1800/1900MHz
Compliant to GSM Phase2/2+
GPRS GPRS mobile station class B
Class 4 2W @ 850/900MHz
Class 1 1W @ 1800/1900MHz

GENERAL TECHNICAL DATA

• Operating temperature: -20 to +60 °C
• Channels: 4x binary input nebo 2x binary input a 2x counter
• Memory: 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode
• Recording interval to the internal memory adjustable from: 1 second to 24 hours
• Recording interval to the COMET Cloud: from 5 minutes
• Interval for measuring and evaluating alarms: adjustable 1 s, 10 s, 1 min
• Recording mode noncyclic: - data logging stops after filling the memory cyclic - after filling memory oldest data is overwritten by new
• Real time clock: year, leap year, month, day, hour, minute, second
• Power rechargeable:Li-Ion battery A8200, 3.6V/5200mAh
• Protection class: IP20
• Dimensions: 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm
• Weight (including batteries): approx. 270 g
• Warranty: 3 years.