IoT Wireless Datalogger for 3 current inputs 0-20mA and 1 two-state input, with built-in 2G modem

GSM datalogger is designed to record 3 current inputs and 1 binary input. In case of exceeded set limits, SMS and JSON messages can be sent via GPRS data connection. Measured values can be sent to the internet storage COMET Cloud, which is a complete monitoring, alarm and analysis system.

It is also possible to set the regular sending of JSON messages to COMET Database, the sending interval is adjustable. Alarms are also indicated locally by LED, LCD and acoustically by built-in beeper.
The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via included USB-C cable.

GSM recorder includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

code

U6841M
Warranty

3 years

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Product variants

Technical data

Measured value

Current

Two-state signal

CURRENT INPUT

Measuring range 0 to 20 mA DC

Resolution better than 1 µA

Accuracy ±20 µA

Input resistance approx. 100 Ω

Minimum current 0 mA (open circuit)

Maximum current limited to approx. 40 mA

BINARY INPUT

Parameters of the voltage contact „L“ level input voltage:< 0,8 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:> 2 MOhm;
Contact voltage in the „switched-off“ state:ca 3 V;
Minimum state duration necessary for latching the state:1s

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 3x current input, 1x binary input

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

Reference

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