BECKHOFF KL3681 - Manual (Page 8)

Product overview
2.2 Technical data
Technical data KL3681 KS3681
Number of inputs 1, voltage or current (1 A / 10 A)
Technology digital multimeter with automatic range selection
Measured values current, voltage (AC/DC)
Measuring voltage 300 mV, 3 V, 30 V, 300 V
Measuring current 100 mA, 1 A and 10 A via high­current path
Resolution 18 bit + sign in each measurement range
Internal resistance Measuring range DC 300 mV to
300 V
12,5 MΩ
Measuring range DC 100 mA to
1 A 0,2 Ω
Measuring range DC 10 A 3 mΩ
Measuring range AC 300 mV to
300 V 1 MΩ, ca. 33 pF
Measuring range AC 100 mA to
1 A 0,2 Ω
Measuring range AC 10 A 3 mΩ
Measuring error 0.01 % DC voltage measurement at 25°C
Measuring procedure DC with arithmetic averaging,
AC with true RMS value calculation TrueRMS,
0...1 kHz input signal, Crest factor < 3 allowed
Update time 0.5 s, 1 s for measuring range selection
Electrical isolation 1500 V (terminal / E­bus)
Supply voltage for internal circuit via K­Bus
Current consumption from via E­bus typically 100 mA
Configuration via KS2000 Configuration Software
Pluggable wiring no yes
Weight approx. 70 g
Permissible ambient temperature temperature for
operation 0°C ... + 55°C
Permissible ambient temperature temperature for
storage ­25°C ... + 85°C
Permissible Relative humidity 95 %, no condensation
Dimensions approx. 15 mm x 100 mm x 70 mm (width aligned:
12 mm)
Mounting [ } 14] on 35 mm mounting rail conforms to EN 60715
Vibration / shock resistance conforms to EN 60068­2­6 / EN 60068­2­27
EMC resistance burst / ESD conforms to EN 61000­6­2 / EN 61000­6­4
Protection class IP20
Installation pos. variable
Approval CE
2.3 Basic function principles
Features
The functionality of the KL3681 is similar to that of a commercial digital multimeter. The terminal offers the
following features:
• Single­channel measurement
KL3681, KS3681 8 Version 2.0.0