Analog 1 1 isolation amplifier for standard current signals

Supply buffer amplifier for 3-way separation of 0/4-20 mA signals (output follows input 1:1)
18 mm narrow housing

The separation amplifier AD-TV 22 GL serves the galvanic separation and amplification of DC-current signals (0/4-20 mA). The output signal follows linear the input dimension and is independent of the connected burden up to a limiting value. Input, output and supply voltage are galvanically separate from each other with high insulation. An integral electronic power pack with a high degree of effectiveness prevents strong heating and allows high output loads. A high packing density is achieved in combination with a narrow type of construction.

Application

Burden amplification and galvanic decoupling of active DC-current signals in a cost-effective build-up.

Input current
Measuring range	0 … 20 mA; 4 … 20 mA
Input resistance	50 Ohm
Output current
Output range	0 … 20 mA; 4 … 20 mA
	1:1 to the input signal
Max. burden	400 Ohm
Residual ripple	<25 µAss
Transmission behaviour
Basic accuracy	< 0,2 %
Temperature influence	< 100 ppm/K
Supply
Supply voltage	20 … 253 V DC / 50 … 253 V AC
Nominal voltage	24 V DC / 230 V AC
Power consumption	0,9 W / 2 VA
Housing
Dimensions (WxHxD)	18x81x103mm
Type of protection	IP 20
Connection method	Screw clamp
Terminals, wire cross section	2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals	0,5 Nm
Manner of fastening	DIN rail 35mm (EN 50022)
Weight	Ca. 100 g
Environmental conditions
Ambient temperature	-10 … 50 °C
Storage and transport	-10 … 70 °C (no condensation)
EMC
Product family standard	EN 61326-1¹⁾
Emitted interference	EN 55011, CISPR11 Cl. B, Gr. 1
¹⁾During electromagnetic disturbance minor changes in output signal are possible.
Electrical safety requirements
Product family standard	EN 61010-1
Overvoltage category	II
Pollution degree	2
Functional safety
Safety integrity level	SIL 2 (IEC 61508)
Galvanic isolation, test voltages
Input/output	3,75 kV RMS (1 min.)
Signal/auxiliary voltage	3 kV RMS (1 min.)
Protective systems
Input/output	Electrical surge protection
Power supply	Electrical surge and reverse current protection

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