Special AC Current, part of the hobut range of transducers

Special AC Current

M100-AX1	1ph. aux. powered ave. sensing RMS calibrated
M100-AX3	3ph. aux powered ave. sensing RMS calibrated
M100-AAS	3ph. summation self powered.
M100-ALS	3ph. summation auxiliary powered

Typical Applications

The M100-AX1 and AX3 are essentially the same as the M100-AA1 and AA3, but they have auxiliaries which allows the working range to be between 0-125% rather than 10-125%. Used where the average sensing of current is required from 0-125% of the nominal current. The M100-AAS and M100-ALS are A.C current summation transducers. Both can have up to 3 inputs of either 1,5 or 10 amp. These inputs are summed by the transducer and one D.C. output is provided, which is proportional to the sum of the inputs. The M100-AAS is self powered with a range of 10-125%, the M100-ALS is auxiliary powered and provides a 4-20mA output with a working range of 0-125%. Typical application is to measure the total current in a 3 phase system and display it via one meter. For example, if a 3 phase system has 3 current transformers 2500/5 then a moving coil meter could be connected to a M100-AAS scaled 0-7500. Note the C.T's must all have the same ratio or the output from the transducer will not be the sum of the total current in the system.

Technical Specification

INPUT
Rated Value In:	1 or 5 Amp C.T. connected 0.5-10 Amp direct
	connected
Power Consumption:	< 0.2VA (AX1, AX3, ALS) < 1VA (AAS)
Working Range:	0-125% In (AX1, AX3, ALS) 10-125% In (AAS)
Rated Frequency:	50 / 60 / 400Hz
Frequency influence:	0.005% / Hz
Overload continuous:	4 x In
Overload for 1 sec.	50 x In
OUTPUT
Rated value mA:	0-1 / 5 / 10 / 29mA (AX1, AX3, AAS)
Rated value mA:	4-20mA (ALS)
Rated value volts:	Not available on (AAS)
Rated value volts:	1-5V (ALS)
Rated value volts:	0-5 / 10V (AX1, AX3)
ADJUSTMENT
Zero:	No adjustment
Zero:	± 2% (ALS)
Span	± 10% (AX1, AX3, ALS)
AUXILIARY
A.C. Voltage	115 / 230 / 440V (± 25% / 45-65Hz / 2VA)
D.C. Voltage	24/48/110V (± 20% galvanically isolated /<3W).
	Note: M100-AAS is self powered.
WEIGHT& CASE SIZE
M100-AX1	Approx 0.4 kg. 55mm case
M100-AAS	Approx 0.6 kg. 100mm case
M100-ALS, AX3	Approx 0.7 kg. 100mm case

Ordering Information

Product Code	Input In	Output	Aux	Freq	Options
M100-ALS	3 x 5A	0-20mA	115V	50Hz	Cal 40ºC

1.	Non standard inputs / outputs as far as technically viable
2.	A.C. Auxiliary in range 57.7 to 450 volts
3.	Calibration at nominal Hz 35...450Hz
4.	Calibration at temperature other than 23ºC