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Compact Readout Unit MODEL CR-400

The CR-400 readout unit, when connected to your mass flow control-ler or meter with a cable, provides the key mass flow functions, such as flow measurement and control as well as cumulative flow calcula-tions and flow event outputs. This readout unit offers RS-485 commu-nications capability, so multiple readout units can be controlled online by a host computer. * The CR-400 is fully compatible in size with the CR-300. 

Features

・Total flow is displayed in 8 digits: The upper 4 digits and the lower 4 digits are shown alternately.
・Various event outputs are available.
・With a width of 73 mm and height of 73 mm, it takes up little space.
・Equipped with forced open/close operation of mass flow controller valve.
・External control terminals are provided on the rear for remote control.
・Mass flow control by RS-485 communications
・A lock key prevents accidental operation.
・Mass flow power: ±15 VDC (300 mA)
・Mass flow power: ±15 VDC (300 mA)
 

Standard Specifications

Mass flow control Flow setting, forced valve open/close operation and zero cut
Mass flow input/output 0–5 VDC
Mass flow power ±15 VDC (300 mA)
Number of display digits Instantaneous flow: 4 digits, total flow: 8 digits (upper and lower 4 digits
shown alternately)
Display accuracy Instantaneous flow: Within ±0.1% F.S. ±1 digit
External control Rear input terminal: Analog signal and RS-485 (half-duplex)
Event output 2 outputs (selected from instantaneous upper limit, instantaneous lower limit,
instantaneous upper/lower limits, and set total)
Open collector output (max. rating: 50 V, 50 mA)
Power consumption Approx. 25 W
AC power supply 85–264 VAC, 48–440 Hz
Weight and dimensions Approx. 400 g, 73 W × 73 H × 119.5 D mm