KROHNE UFM 600 T ALTOSONIC, Installation And Operating Instructions Manual

Page: 45 / 93

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