×
Did you know that Comet exists in a US version as well?

This website is using cookie files for provision of services, personalization of advertising and for analysing of visit rate.
By using this site you agree to our use of cookies. More information

manufacturer of measuring instruments
English Česky USA Polski Sweden Africa Magyar Español China Français

Data logger for 3 current inputs 0-20mA and 1 two-state input

Datalogger is designed to record 3 current inputs and 1 binary input.

The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via USB-C.

In case of exceeded set limits alarms are indicated by LED, LCD and acoustically by built-in beeper.

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

Included in delivery:

  • code
    U6841
  • Warranty
    3 years

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

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 adjustable from 1 s to 24 h
Display and alarm refresh 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 Lithium battery 3.6V, size AA
Protection class IP20
Dimensions 61 x 93 x 32 mm
Weight (including batteries) approx. 120 g
Warranty 3 years

Optional accessories

Other accessories

USB-C 3.1 cable, 1 meter

USB-C 3.1 cable, 1 meter

code MP053
Self Adhesive Dual Lock

Self Adhesive Dual Lock

code MD036
Holder for mounting the Datalogger "U" on magnetic surfaces

Holder for mounting the Datalogger "U" on magnetic surfaces

code LP102
Wall holder for datalogger

Wall holder for datalogger

code LP100
Lithium battery 3,6V/AA

Lithium battery 3,6V/AA

code A4203
SILEX - USB Device server for communication with COMET dataloggers via Ethernet or Wi-Fi

SILEX - USB Device server for communication with COMET dataloggers via Ethernet or Wi-Fi

code Silex

Monitoring software

COMET VISION 2.0  - Analytical Software for Dataloggers and Multiloggers

COMET VISION 2.0 - Analytical Software for Dataloggers and Multiloggers

code CV
Comet Database

Comet Database

code CDB

Temperature Probes

Surface temperature probe, 200-80/E

Surface temperature probe, 200-80/E

Temperature range: -30 to 80°C
code SN171
Temperature probe Pt1000TG8/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TG8/E, ELKA connector, cable 1 meter

Temperature range: -80 to 200°C
code SN104E
Temperature probe Pt1000TR050S/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TR050S/E, ELKA connector, cable 1 meter

Temperature range: to °C
code SN247E
Temperature probe Pt1000TG7/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TG7/E, ELKA connector, cable 1 meter

Temperature range: -50 to 200°C
code SN164E
Temperature probe Pt1000TG68/E, ELKA connector, cable 2 meters

Temperature probe Pt1000TG68/E, ELKA connector, cable 2 meters

Temperature range: -50 to 200°C
code SN232E
Temperature probe Pt1000TR125/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TR125/E, ELKA connector, cable 1 meter

Temperature range: -190 to 150°C
code SN239E
Temperature probe 2304-220/E, ELKA connector, cable 1 meter

Temperature probe 2304-220/E, ELKA connector, cable 1 meter

Temperature range: -30 to 220°C
code SN168E
Temperature probe 2021-150/E, ELKA connector, cable 1 meter

Temperature probe 2021-150/E, ELKA connector, cable 1 meter

Temperature range: -30 to 150°C
code SN169E
Temperature probe PTS350A-2/E, ELKA connector, cable 2 meters

Temperature probe PTS350A-2/E, ELKA connector, cable 2 meters

Temperature range: -30 to 130°C
code SN170E
Temperature probe 2034-220/E, ELKA connector, cable 1 meter

Temperature probe 2034-220/E, ELKA connector, cable 1 meter

Temperature range: -30 to 150°C
code SN175E
Temperature probe 2061-200/E, ELKA connector, cable 1 meter

Temperature probe 2061-200/E, ELKA connector, cable 1 meter

Temperature range: -30 to 200°C
code SN178E
Temperature probe Pt1000TGL40/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TGL40/E, ELKA connector, cable 1 meter

Temperature range: -30 to 80°C
code SN185E
Temperature probe Pt1000TR160/E, ELKA connector, cable 1 meter

Temperature probe Pt1000TR160/E, ELKA connector, cable 1 meter

Temperature range: -30 to 80°C
code SN199E
Stick-in probe 2091-250/E, ELKA connector, cable 1 meter

Stick-in probe 2091-250/E, ELKA connector, cable 1 meter

Temperature range: -50 to 250°C
code SN210E