Comet U7844M IoT Wireless Four channel Datalogger with pulse and two-state inputs, with built-in 2G modem (Rechargeable Li-Ion battery A8200, 3.6V/5200mAh)

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

Datasheet

Manual