Configuration Options

Description
DLT2B-Analog Flow Ratio Controller, 2 Channels, Analog
DLT2B-DeviceNet Flow Ratio Controller, 2 Channels, DeviceNet
DELTA II 2-zone Flow Ratio Controller DLT2B-EtherCAT Flow Ratio Controller, 2 Channels, EtherCAT

Specifications

  • Type
    Flow Ratio Controller
  • Full Scale Flow Range
    500/500 sccm, 1000/1000 sccm, 2000/2000 sccm, or 10000/10000 sccm
    (N2 equivalent)
  • Ratio Accuracy
    ±2% set point (for percent set points above 10%)
  • Channel Flow Control Range
    0, 5-100% Full Scale (EtherCAT)
  • Input Flow Range
    5-100% of each channel Full Scale rating (N2 equivalent)
  • Ratio Control Range
    1:1 to 20:1 and 20:1 to 1:1
  • Ratio Repeatability & Reproducibility
    0.02% of channel Full Scale
  • Resolution
    0.02% of channel Full Scale
  • Maximum Operating Outlet Pressure
    EtherCAT: 200 Torr at maximum flow rate through all channels
    DeviceNet & Analog: 200 Torr
  • Maximum Allowable Outlet Pressure Differential
    EtherCAT: 50 Torr with the same percentage flow through all channels (highest to lowest pressure channel)
    DeviceNet & Analog: 50 torr (between Q1 and Q2)
  • Normal Operating Pressure Differential
    <150 torr (<450 torr for 10000/10000) (N2)
  • Ratio Settling Time
    EtherCAT: <3 seconds (typical dependent on downstream conductance matching)
    DeviceNet: <3 seconds
  • Input Ratio Range
    1:1 to 20:1 and 20:1 to 1:1 (EtherCAT)
  • Ratio Repeatability
    ±0.3% of set point
  • Maximum Inlet Pressure
    150 psig (non-operational) (EtherCAT)
  • Zero Temperature Coefficient
    EtherCAT: <0.05% Full Scale/°C
    DeviceNet & Analog: 0.05% Full Scale/°C
  • Span Temperature Coefficient
    EtherCAT: <0.08% Reading/°C
    DeviceNet & Analog: 0.08% Reading/°C
  • Proof Pressure
    1000 psig (DeviceNet)
  • Burst Pressure
    1500 psig (DeviceNet)
  • Warm-up Time
    EtherCAT: 60 Minutes
    DeviceNet & Analog: 30 minutes
  • Operating Temperature
    10-40°C
  • Storage Temperature
    -20-65°C
  • Storage Humidity
    0-95% relative humidity, non-condensing
  • Temperature Accuracy
    ±2°C
  • Temperature Resolution
    0.1°C
  • Fitting Type
    4 VCR male (non-rotatable)
  • Display
    4 digits for value, 4 characters for unit
  • External Leak Integrity
    <1x10-10 (scc/sec He)
  • Leak Integrity Through Closed Valve
    EtherCAT: < 2% of Channel Full Scale at 400 Torr differential to < 1 Torr
    DeviceNet & Analog: <2% of Channel FS at 400 torr differential
  • Wetted Materials
    316 stainless steel VAR, 316 stainless steel, Inconel®, KM-45, PTFE
    EtherCAT: Hastelloy®
  • Surface Finish
    5 microinch average Ra
  • Weight
    Less than 5 lbs. (2.3 kg)
  • Connector
    Analog: 9-pin Type "D" Male
    DeviceNet: 5-pin DeviceNet microconnector
    EtherCAT: 2 x RJ-45 (comm.) male, M8 male, 5 pin (power)
  • Power Requirements
    Analog: +15-24 VDC ±5%
    DeviceNet: 11-25 VDC
    EtherCAT: 24 VDC ±10% (10 Watts)
  • Power Consumption
    <9 Watts (DeviceNet)
  • Communication
    Analog, DeviceNet, or EtherCAT
  • Compliance
    CE (an overall metal braided, shielded able, properly grounded at both ends, is required during use).

Features

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