Universal-Measuring Transducer/ Isolating Amplifier Type MU100U

Universal Measuring Transducer / Isolating Amplifier

Universal-Measuring Transducer/ Isolating Amplifier Type MU100U

Order-number


Product description

 

The universal measuring transducer MU100U can be connected to any supply voltage AC or DC between 24 and 240 V. Input signals and output signals are electrically isolated from each other. Signals DC 0/4-20 mA or 0-10 V can be connected to the inputs. The input signals are transduced to standard-signal 0-10 V, 0/4-20 mA at the outputs.

The measuring signal applied to one of the inputs is converted into a normalized voltage signal and changed into a frequency. The frequency signal is transferred by means of an optocoupler for electrical isolation. It is then converted again into a voltage and amplified. Signals 0/4-20 mA and 0-10 V are now available at the outputs. The electronics before and after the optocoupler are supplied from the power supply unit with potential separated voltages each.

It is often necessary to separate the potentials of signals by means of isolation amplifiers as otherwise this would lead to adulteration of measuring values because of compensating currents. Furthermore, the low-voltage side is effectively protected against damage caused by malfunctions at the primary side. Because of the variety of the current standard signals (0-20 mA, 4-20 mA, 0-10 V), it often happens that the output of a measuring transducer is not compatible with the input of the evaluation unit. MU 100 U eliminates these problems. Stockkeeping is largely facilitated by the universal supply voltage and different input and output signals in one device. These measuring transducers almost always fit.

  • Input signals DC 0 - 20 mA, 0 - 10 V
  • Output signals DC 0 - 20 mA, 0 - 10 V
  • Offset with signals 4 - 20 mA can be compensated by the user
  • Universal supply voltage AC/DC 24 - 240 V
  • electrical isolation between inputs and outputs
  • supply voltage for external measuring transducers -5/+18 V/ max. 30 mA
  • Isolation voltage 2.5 kV

Technical Data

Power Supply

Rated supply voltage Us

.......

AC/DC 24V - 240V

 

adm. tolerance DCV

.......

DC 20 - 297 V

 

adm. tolerance ACV

.......

AC 19 - 264 V, Frequenz 20 - 120 Hz

 

Power consumption

.......

< 3 W

 

recommended fuse

.......

2 A slow (gL)

 

Inputs

Input voltage

.......

DC 0 - 10 V

 

DC 0 - 10 V

.......

> 500 kΩ

 

Input current

.......

DC 0/ 4 - 20 mA

 

max. current

.......

DC 50 mA

 

Nominal input resistance

.......

50 Ω

 

Voltage supply for ext. Measuring Transducer

voltage

.......

DC -5 V/ ground GND1 -16 - 20 V

 

current

.......

max. 30 mA

 

Outputs (2 outputs with common ground)

Output voltage

.......

DC 0 - 10 V

 

max. no load voltage

.......

DC 12 V

 

max. current

.......

DC 20 mA

 

Output current

.......

DC 0/4 - 20 mA

 

max. short-circuit current

.......

DC 30 mA (short-circuit-proof)

 

max. load

.......

500 Ω

 

Accuracy

.......

class 0,2 at Tu = 23°C

 

Temperature effect

.......

0,025%*K-1

 

Nominal rise time T0,9

.......

50 ms

 

Operation Conditions

rated ambient temperature range

.......

0…50°C

 

ambient storage temperature

.......

-20…+70°C

 

Test Conditions

Isolation

.......

Input/Output/Supply voltage 2500 VAC

 

EMV

.......

EN 61000-6-4 / EN 61000-6-2

 

Operating time

.......

100%

 

Housing

Dimensions H x B x T

.......

Design K: 75 x 22,5 x 110 [mm]

 

Line connection one-wire

.......

1 x 0,5 - 2,5 mm2​

 

fine-wire with multicore cable ends

.......

1 x 0,14 - 1,5 mm2

 

Fitting position

.......

any

 

Fastening

.......

Snap mounting on 35 mm standard rail conforms to DIN EN 60 715 or M4 screws

 

Protection housing / terminals

.......

IP 40 / IP 20

 

Burning behaviour

.......

UL 94 V-2

 

Stripping length

.......

8 mm

 

Connection torque of screw

.......

max. 0,5 Nm

 

Weight

.......

ca. 200 g