The Model DF-300C Series is a mass flow controller with an integral
indicator that operates on a 24-V power supply, as developed
in response to the requests from users of the DF Series.
It inherits the features of the DF-200C Series with enhanced
convenience, including accuracy of ±1% S.P., response ≤1 sec (in
all ranges), and the multiple-gas, multiple-range versatility, i.e.,
support of seven gases (including reference gas) and the ease of
changing the flow rate range of each gas.