Yokogawa RotaMASS 3-Series - Manual (Page 171)

7. pArAMETEr dESCrIpTION
7-99 IM 01R04B04-00E-E 8th edition March 01, 2011 -00 All Rights Reserved. Copyright © 2003, Rota Yokogawa
7.19 Net flow (detailed Setup)
Net flow To set the functions of net flow measurement.
Net flow is only available if concentration measurement is activated
(option /Cxx).
Net flow select
(only available for option /CST) Select: Mass, volume
Net flow unit When Net flow select is set to Mass:
g/s, g/min, g/h, kg/s, kg/min, kg/h, kg/d, t/min, t/h, t/d, lb/s, lb/min,
lb/h, lb/d can be selected
When Net flow select is set to volume:
cm³/s, cm³/min, cm³/h, l/s, l/min, l/h, l/d, m³/s, m³/min, m³/h, m³/d,
gal/s, gal/min, gal/h, gal/d, Cuft/s, Cuft/min, Cuft/h, Cuft/d, bbl/s,
bbl/min, bbl/h, bbl/d, Impgal/s, Impgal/min, Impgal/h, Impgal/d
can be selected
Net flow format Select: xxxxxxx, xxxxx.X, xxxx.XX, xxx.XXX, xx.XXXX, x.XXXXX
Net flow lrv
(low range value) Set a net flow value to the 4 mA or 0 Hz.
Net flow Urv
(upper range value) Set a net flow value to the 20 mA or xxxxx = Hz.
Abs(URV-LRV) ≥ 5% of Qnom.
Net flow damping Set the damping time in s. Damping time effects outputs and display.
After 5 times damping time the given value is displayed (t=63%).
Net flow lowcut Set the low cut effects output and display. A hysteresis of 0.05% of
Qnom is given by the system.
Net flow alm 1 sel Select: No function, More than, less than
Net flow alm 1 crit Select a net flow alarm level. What happens in case of an alarm has
to be defined in Status out (7.12, 7.13)
Net flow alm 2 sel Select: No function, More than, less than
Net flow alm 2 crit
Restrictions:
All alarms have to be in 0-110% of
URV-LRV
Alarm criteria 2 must always be
larger than alarm criteria 1.
Select a net flow alarm level. What happens in case of an alarm has
to be defined in Status out (7.12, 7.13)