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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
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
Included in delivery:
U7844M
Instruction Manual
Traceable Calibration Certificate
Rechargeable Battery
Power Supply
USB-C Cable
FREE FULL VERSION Analytical Software COMET Vision
COMET Cloud for 3 Months
SIM CARD IS NOT INCLUDED IN DELIVERY
