D421.50 pages

D421.5

Speed Alarms with optional Analog Output

Series D421.51 / D421.52

BRAUI

24 23 22 21 20 19

PE -TL s

18 17 16 15

OV U3 U2 mV

D| BRAUN GMBH

U% INDUSTRIE-ELEKTRONIK

r

235,64

c o

POWER STARTER SP1

SP2 ANALOG

| „_ | „_ OUTPUT

D421.51 Front View

Fast, precise and safe - from zero motion to highest speed

The BRAUN Speed Alarm Series D421.5 measures the frequency (or any other physica

quantity which can be transmitted as a pulse train) of the input signal and converts it into

two setpoint alarms and, if required, into an 0/4.. .20 mA analog output. Programmable

in conversion characteristics and outputs

KEY FEATURES

■ 2 Speed Alarms as SPDT contacts

■ Setpoints and their response

characteristics individually

programmable over the entire range

from zero to high speed

■ Measuring principle combining

programmable fast response and

averaging within wide limits

■ Frequency range 0 Hz. ..100 kHz

■ Control signal for start-up suppression

■ 1 Analog Output 0/4.. .20 mA (option)

■ 5 digit LCD display (8 mm)

■ Universal Inputs, also for magnet

nductive sensors (MPUs)

■ Square wave pulse output

BENEFITS

■ Fast, precise and safe

■ Maintenance-free during Lifetime,

therefore minimized TCO

■ Precise adjustment to the application

data on site at the unit, by 5 digit

scaling factor

Characteristics features are extremely wide range, fast tracking response by pulse

nterval measurement, free programmable conversion parameters, and electronic

programming by keys, with display assistance

The signal input is designed to accept a wide range of transmitters: contact free speed

sensing probes, incremental encoders, pulse wheel transmitters. Any flowmeter pulse

signal output can be converted into an analog flowrate signal

Display, setpoints and analog output may be assigned to any measured quantity. During

its lifetime cycle the speed alarm is completely maintenance-free.

BRAUN

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