HENGKO HT R71, Руководство пользователя

Страница: 47 / 78

- 47 -
①
flow model:
different flowmeter can choose a different calculation
model, the instrument temporarily provides four kinds of calculation model,
differential pressure model for differential pressure flowmeter such as
standard orifice plate, standard nozzle, etc., frequency type vortex model
for pulse frequency flowmeter such as vortex, turbine flowmeter, etc.,
linear model for current output type vortex flowmeter, electromagnetic
flowmeter, etc., single cumulative model for pure cumulative channel The
mass flow rate formula, see Appendix II for details.
②
open type: differential pressure model optional: native open square or
differential open square.
③
Input mode: optional for frequency type model: counting frequency
value or counting pulse number.
④
Flow rate unit:
m³/h, m³/min, m³/s, L/h, L/min, L/s, t/h, t/min, t/s, kg/h,
kg/min, kg/s, k m³/h, N m³/h, kN m³/h, unit involved in calculation.
⑤
Instrument coefficient: Instrument coefficient K is obtained according
to a set of signals output from the transmitter and the corresponding flow