U6841 Data logger for 3 current inputs 0-20mA and 1 two-state input

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