SWITCHING AMPLIFIER 521

ELECTRONIC ACCESSORY | DISPLAY AND CONTROL DEVICES

Application

The switching amplifier is preferably used for binary signal transmission of water meters.
The switching amplifier is frequently used as pulse extension relay for fast running processes. It can be used as contact protection relay or non-bounce relay when being triggered by a volt-free contact transmitter (reed switch).
If required, the two binary inputs can be added to one output-channel (via turn switch).

Features

Snap-bar case version
Triggered on choice by contact transmitter, infrared transmitter and two-wire primer (NAMUR)
Each output is a opto-coupler with one no-contact
Two volt-free outputs, solid state relay, no-contact
Galvanically isolated measurement and supply circuits
Adjustable impulse period
3 different pulse length, adjustable via turn switch
Pulse-addition adjustable via turn switch
Power supply 20 ... 250 V AC/DC

SWITCHING AMPLIFIER 521

Technical Data

Supply voltage		Wide range power supply 20 ... 250 V AC/DC, 100 mA ... 20 mA
Display		LED display for output pulses
Storage temperature	°C	-40 ... +70
Operating temperature	°C	0 ... +55
Output - type		Solid stay relay (SSR), output volt-free
Output - load		Max. 230 V / 100 mA ~
Min. input pulse duration		6 ms
Max. input pulse duration		Infinite
Outputs		Can be switched over via turn switch; S₁ = Channel 1, S₂ = Channel 2
Inputs		Initiator 571 / 572; Reed switch 570, IR transmitter 571, PV14
Housing - type		Snap-on housing
Housing - fixing		Mounting rail to EN 50022 (35 x 7.5)
Protection class - housing	IP	20
Protection class - terminal	IP	10
Weight	g	200

Separate working outputs (S_X = Channel 1 or Channel 2)
S_X = 0 | Output_X = Input_X --> direct transmission / permanent contact
S_X = 2 | Output_X = Input_X with 0.1 sec output pulse __|¯|_________
S_X = 3 | Output_X = Input_X with 0.3 sec output pulse __|¯¯¯|_______
S_X = 4 | Output_X = Input_X with 2 sec output pulse __|¯¯¯¯¯¯¯|___

Input-Addition (Channel 1 + 2) --> Output_X (max. up to 100 pulses per channel in memory)
S_X = 9 | Output_X = E1 + E2 with 0.1 sec output pulse __|¯|_________
S_X = A | Output_X = E1 + E2 with 0.3 sec output pulse __|¯¯¯|_______
S_X = B | Output_X = E1 + E2 with 2 sec output pulse __|¯¯¯¯¯¯¯|___

Technical Data Inputs

Initiator 572, 573			8 mA (short-circuit-current), 1.6 mA (switching point)
Reed switch 570			8 mA (short-circuit-current), 1.6 mA (switching point)
IR transmitter 571			5 mA (short-circuit-current), 1.0 mA adjustable by front trimmer (switching point)
PV14			5 mA (short-circuit-current), 1.0 mA (switching point)

Dimensions

Length L mm 72
Width B mm 91
Width B1 mm 65
Width B2 mm 46
Height H mm 62
Height H1 mm 51
Height H2 mm 33
Order References

Remark Switching Amplifier (Snap Bar) (SSR) 20 ... 250 V AC/DC
Article number 521 000 16
Operation turn switch | Connections

Operation turn switch

Connections
Pin Assignment
Connection of sensors

Reflex light barrier (571)

Namur (572, 573)

Open drain (573)

Reflex light barrier PV 14
Connection of sensors / meters

Pulsar

Electronic counter module

RAY

Length	L	mm	72
Width	B	mm	91
Width	B1	mm	65
Width	B2	mm	46
Height	H	mm	62
Height	H1	mm	51
Height	H2	mm	33

Remark			Switching Amplifier (Snap Bar) (SSR) 20 ... 250 V AC/DC
Article number			521 000 16