Sorry, this family of products is no longer available. The recommended replacement product is 946-vacuum-system-controller.
250E Gas Inlet Pressure and Flow Control Module
250E Gas Inlet Pressure and Flow Control Module
The 250E is a self-contained PID control module designed to provide optimized control of the total pressure or flow of a gas (or gases) in a dynamic closed-loop system. With the 250E, input can be supplied by a Baratron® Capacitance Manometer or other compatible vacuum gauge for closed-loop pressure control, or flow input can be measured by a mass flow transducer for closed-loop flow control. Its power supply has sufficient output to power most capacitance manometers and flow transducers.
Specifications
- Type250E Gas Inlet Pressure and Flow Control Module
- For Use With148J, 248D, and 154B Valves (A special version of the 250E is required to drive the 154 control valve. Contact Applications Engineering.)
- Accuracy0.25% of Full Scale 0.1, 1 or 10 VDC selectable on front panel
- Power Input115/230 VAC, 50-60 Hz, 50 Watts
- Power Output±15 VDC @ 250 mA (to power input transducers)
- Signal Input0 to ±0.1, 1 or 10 VDC
- Output SignalInput transducer signal: 0-5, 10 VDC into >10K Ohm load
Pressure control signal: 0-10 VDC
- DisplayStandard: analog error meter
Optional: 4½ digit LED input signal display - Input Impedance>200K W
- Mountingbench-top or rack-mount
- Control Loop Tuning PhasePhase lead: 0.05 sec to 10 sec
Gain: 0.2% to 100% - Dimensions9.5 inches W x 3.5 inches H x 9.0 inches D
- Remote ControlAnalog set point input: 0 to 5 VDC into 40K Ohm load
Multi-set point select (option): ground closure to select (one or four set points)
Valve close or auto operation: ground closure to select
Process limits (option): logic level and relay closure adjustable 0.5 to 100% of set point
Resources
Literature
250E Gas Inlet Pressure/Flow Control Module (archived)(160.4 kB, PDF)
Manuals
250E Pressure/Flow Controller Manual(193.2 kB, PDF) 250E Gas Inlet Pressure/Flow Control Module Pin-outs(26.1 kB, PDF)