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Altosonic – KROHNE UFM 600T EN User Manual

Page 45

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C.6

Direct Output Ports (Analog (mA) output and frequency /

pulse output)

C.6.1

General

The options available for these direct output ports are descri-
bed further in section D.4 main menu: 3.0.0 INSTALLATION.

Refer to the technical specifications if any equipment is to be
connected to the current and/or frequency output. (see
C.6.3, C.6.4 and chapter F)

C.6.2

Output hold

It is advisable to activate the output hold function (3.5.2)
when the flowmeter is being used as part of a control loop.

NOTE:

This hold function also affects the outputs in case of mal-
function (signal lost).

C.6.3

Current output

Specification:
Range

:

0 to 20 mA, or 4 to 20 mA or I
0% to...;I 100% programmable

Load

:

14 [V]

R L[kohms] < I 100% [mA]

(e.g. 0.7 kohms at 20 mA,

2.8 kohms at 5 mA).

C.6.4

Frequency output

Specification:
Pulse rate for Q=100%:

10 to 36 000 000 pulses per hour
0.167 to 600 000 pulses per
minute
0.0028 to 10 000 pulses per
second (=Hz)
optionally in pulses per liter, m3 or
US gallons

44

ALTOSONIC

Operation

UFM 600 T