![YOKOGAWA ROTAMASS Total Insight Скачать руководство пользователя страница 68](http://html.mh-extra.com/html/yokogawa/rotamass-total-insight/rotamass-total-insight_user-manual_911337068.webp)
Quick Reference Instruction Manual for Spare
Transmitter replacement
Wiring
68 / 76
IM01U10A01-00EN-R, 1
st
edition, 2019-12-09
ROTAMASS
Pulse+
Pulse-
3
2
1
Fig. 50:
Passive pulse output connection with electromechanical counter
①
Passive pulse
②
Protective diode
③
Electromechanical counter
PROFIBUS PA communication
PROFIBUS PA
interface
PROFIBUS PA interface of Rotamass Total Insight is based on PROFIBUS PA protocol
(Profile Revision R3.02 Compliant) and standard IEC61158, for details of instrumentation
see website of the PROFIBUS/PROFINET organization (
7.4.4.8 Power supply
Power
supply
Alternating-current voltage (rms):
▪ Power supply
1)
: 24 V
AC
+20 % -15 % or 100 – 240 V
AC
+10 % -20 %
▪ Power frequency: 47 – 63 Hz
Direct-current voltage:
▪ Power supply
1)
: 24 V
DC
+20 % -15 % or 100 – 120 V
DC
+8,3 % -10 %
1)
for option MC
␣
(DNV GL approval) supply voltage is limited to 24 V; in addition NE21
testing indicates a tolerable area of 24 V
DC
±20 % under NE21 test conditions.
Power
consumption
P ≤ 10 W (including sensor)
Power
supply failure
In the event of a power failure, the flow meter data are backed up on a non-volatile inter-
nal memory. In case of devices with display, the characteristic sensor values, such as no-
minal diameter, serial number, calibration constants, zero point, etc. and the error history
are also stored on a microSD card.