Compare Model Drawings, CAD & Specs Pressure Range Flow Rate Availability Price
640b integrated absolute pressure controller
Absolute Pressure Controller, 10 Torr, 200 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
10 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 10 Torr, 200 sccm, 4 VCR-M, Metal Seal, Viton Valve Plug
$2,950
3 Weeks
10 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 10 Torr, 1000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
10 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 10 Torr, 1000 sccm, 4 VCR-M, Metal Seal, Viton Valve Plug
$2,950
3 Weeks
10 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 10 Torr, 5000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
10 Torr 5000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 200 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
100 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 1000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
100 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 1000 sccm, 4 VCR-M, Metal Seal, Viton Valve Plug
$2,950
3 Weeks
100 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 5000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
100 Torr 5000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 200 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
100 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 1000 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
100 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 100 Torr, 5000 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
100 Torr 5000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 200 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
1000 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 1000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
1000 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 5000 sccm, 4 VCR-M, Metal Seal, Metal Valve Plug
$2,950
3 Weeks
1000 Torr 5000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 200 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
1000 Torr 200 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 1000 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
1000 Torr 1000 sccm
3 Weeks
640b integrated absolute pressure controller
Absolute Pressure Controller, 1000 Torr, 5000 sccm, 4 VCR-M, Viton Seal, Viton Valve Plug
$2,525
3 Weeks
1000 Torr 5000 sccm
3 Weeks

Configuration Options

Description
  640b integrated absolute pressure controller 640B Absolute Pressure Controller, Closed-Loop, 640B

Specifications

  • Type
    640B Absolute Pressure Controller
  • Pressure Range
    10, 100, 1000 mmHg (Torr), 60, 100 psi (Full Scale)
  • Fitting Type
    4 VCR, 8 VCR, 0.25 in. Tube, or Surface Mount
  • Flow Rate
    50, 200, 1000, 5000, 10000, 20000, 50000 sccm (nominal Full Scale flow rates for N2 with 15 psig on inlet and atmosphere on outlet)
  • Trip Points
    Two open-collector transistors
    Rated: 250 mA @ 30 VDC
    Adjustable: 1 to 100% of Full Scale
    Hysteresis: 3% of Full Scale
    Indicators: Green LED's on when actuated
  • Pressure Control Accuracy
    ±0.2% of Full Scale
  • Transducer Over Pressure Limit
    45 psia or 2x Full Scale, whichever is greater
  • Maximum Differential Pressure
    30 psi for 20,000 and 50,000 sccm orifices
    150 psi for 50 to 10,000 sccm orifices
    (consistent with transducer overpressure limit)
  • Control Mode
    Downstream standard; Upstream optional
  • Pressure Measurement Accuracy
    ±0.5% of Reading (includes linearity, hysteresis, and repeatability)
  • Zero Temperature Coefficient
    Zero: ±0.02% of Full Scale/°C
  • Span Temperature Coefficient
    Span: ±0.04% of Reading/°C
  • Control Range
    >2 to 100% of Full Scale
  • Typical Response Time
    <1.0 sec (excluding system time constant)
  • Operating Temperature
    0 - 50°C (32° to 122°F)
  • Storage Temperature
    -20 to 80°C (-4° to 176°F)
  • External Leak Integrity
    <10-9 scc/sec He
  • Leak Integrity Through Closed Valve
    Elastomer valve: <10-4 scc/sec He
    Metal valve: <1% of Full Scale (N2 @ 1 atm. ΔP)
    Kel-F valve: <0.5% of Full Scale (N2 @ 1 atm. ΔP)
    (through closed valve)*
  • Wetted Materials
    Standard: 316L S.S., 316L/VAR S.S., Inconel, Nickel
    Optional: Viton®, Kalrez®, Kel-F®
  • Power Required
    ±15 VDC ±5%, 200 mA maximum
  • Connector-Interface
    15-pin male type "D"
  • Meter Response Time
    <100 msec
  • RFI Sensitivity
    SAMA 33.1, 1-abc: <0.2% of Full Scale
  • Input-Output Signals
    0-5 VDC standard; 0-10 VDC optional
  • Cable Length
    100 feet (30 m) maximum
  • Weight
    2.54 lbs. (1.15 kg)
  • Dimensions
    1.5 inches (38.1 mm) x 4.88 inches (124 mm) (4 VCR) x 5.50 inches (140 mm) maximum
  • Compliance
    CE

Features

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