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» » » » » Kofloc Mass Flow Controller D8500 SERIES Mass Flow Meter With Indicator

KOFLOC MASS FLOW CONTROLLER D8500, MASS FLOW METER

Mass Flow Controller/Mass Flow Meter With Indicator

Kofloc MODEL D8500 SERIES

Kofloc mass flow controller/meter driven by a 24 VDC power supply has been developed as a successor to the MODEL 8300. The viewpoint change function of the display unit and the pattern setting function are unique to this model, and noise resistance has been improved dramatically. A sister model with a detachable display and setting unit is also available.

Features :

  • The high-lift actuator allows this compact model to control a large flow rate.
  • Equipped with a display and setting unit, this model can be operated by a 24 VDC power supply
  • The RS232C/RS485 communication function and integration function are provided as standard equipment.
  • The 14-bit  converter permits to display and operation in 4-1/2 digits.
  • Control of the flow rate of inflammable gas is possible because the heat generating part of the sensor is not exposed to the gas.
  • There are no limitations on the mounting position that may be employed
  • In addition to the SV setting, five other patterns can be set.
  • Auto zero and auto close functions are also standard.

Standard Specifications :

  • Flow range (F.S.) (at N2 calibration conditions) : 50 SCCM-5 SLM
  • Applicable gases (dry gas): N2, air, O2, CO2, Ar, H2, He, etc.
  • Sensor: a Thermal mass flow sensor
  • Valve actuator: Normally-closed solenoid valve actuator *7
  • Valve type: Poppet valve *7
  • Control System :
    • Control/measurement range  : 2-100% F.S.
    • Response: 0-100% F.S. or more within 2 sec. *1
    • bellow 10% F.S. within 4 sec. *
  • Accuracy :
    • Flow accuracy: ±1.0%F.S. *2
    • Repeatability: ±0.75%F.S.
  • Pressure :
    • Proof pressure: 1000 kPa (G)
    • Allowable operating pressure: 500 kPa (G) or less
    • Operating differential pressure *7 : 50–300 kPa (G) =>  100-300 kPa (G)
  • Temperature :
    • Allowable operating temperature: 5–45℃
    • Temperature characteristics : 0.2% F.S./℃
  • Humidity :
  • a). Allowable operating humidity: 10–90% (No condensation allowed)
  • Leak: He leak rate: 1 × 10-8 Pa•m3/sec. or less *3
  • Flow setting method:
    • Digital :
      • Setting & display unit
      • Communications
      • Event input selection
    • Analog *7 : (1) 0–5 V (2) 4–20 mA (freely selectable)
    • Flow rate output:
      • Analog : (1) 0-5 V (2) 4-20 mA (interlocked with the above)
  • Display :
    • Display format: 7-segment 4-digit LED
    • Total flow: 12 digits *4
    • Mounting direction: Changeable
    • Built-in/Separate :Built-in, separate 1 m, separate 3 m, separate 5 m
    • Status display LED : OK (within allowable range), ALM (alarm output interlock) OUT1 (event output 1 interlock), OUT2 (event output 2 interlock) SV (set flow), PV (instantaneous flow), TF (total flow) IF (mode setting)
  • Other I/O functions :
    • Event input : 3 × contact input
    • Alarm output: 1 × open collector output, Max. 35 V, 50 mA
    • Event output: 2 × open collector output Max. 35 V, 50 mA
    • Communications: RS-485, half-duplex, 9600 bps
  • Power supply :
    • Rating : 24 VDC, current consumption: 300 mA max.
    • Allowable supply voltage range: 21.6–26.4 VDC (Ripple: 5% or less)
  • Mounting position: Not specified
  • Applicable standards: RoHS and EN62326-1: 2006
  • Materials of parts in contact with gases: SUS316, SUS316L, SUS430, FKM, PTFE, chloroprene rubber (option)
  • Joint: 1/4 SWL, RC1/4, 1/4 VCR
  • Weight :
    • Built-in: Approx. 1000 g
    • Separate (excluding the cable): Approx. 1200 g (*6)
More information please Email Marketing@wmablog.com

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