MPPI-3 Pressure Injector
About the MPPI-3
The Milli-Pulse Pressure Injector, MPPI-3 produces gas pressure pulses to an injection pipette. The unit offers precise linear control of both pressure and pulse duration. Alternatively, an external source such as a signal generator can be used to control the pulse width and rate.
The MPPI-3 provides three methods to initiate the pressure pulse, in either Trigger or Gated mode:
- Front panel pushbutton
- External TTL input signal
- Optional footswitch
Continuous output allows fine-tuning of the flow rate and clearing clogs from pipettes. Maximum input pressure is 100 psi (690 kPa). The output pressure is adjustable from 0 up to 100 psi. An internal gas filter increses for reliability and ease of maintenance.
The MPPI-3 has an input for an optional Back Pressure Unit (BPU). This option prevents any reverse flow in a pipette caused by capillary action after a pulse by providing an adjustable (0-to-15 psi or 0-to-100 kPa) back pressure.
The new MPPI-3 case allows stacking of multiple controllers. The compact size and low cost makes the MPPI-3 an ideal choice for your pressure injection needs.
|Input Pressure Range||100 psi (0 to 600 kPa)|
|Output Pressure Range||Regulated 0 to 100 psi (0 to 690 kPa) (Maximum output dependents upon input pressure)|
|Output Pulse Range||Four user-settable ranges:
5 ms to 100 ms, 5 ms to 100 ms, 5 ms to 10 s, 5 ms to 60 s
Minimum duration limited by the pneumatic solenoid valve to approximately 5 s
|Output Pulse Setting||Via a front panel 10-turn calibrated dial|
|Output Pulse Accuracy||0.4% of full scale (crystal controlled)|
|Output Pulse Repeatability||0.4% of full scale (1% over the life of the valve)|
|Output Pressure Gauge||Front panel analog gauge: 0 to 100 psi (0 to 690 kPa)|
|Valve Life Expectancy||100 million cycles|
|Modes of Operation||Continuous flow, Timed Pulse Duration flow control, Gated flow control|
|Control Options||Front panel pushbutton switch, external TTL input signal, footswitch or other type of manual switch|
|Output Sync||Allows monitoring of the valve control and the daisy-chaining of multiple controllers, as well as synchronizing the injection pulse with micromanipulators and piezo cell penetrators|
|Gas Input and Back Pressure Fitting||1/8” (3.18 mm) Barbed hose fittings|
|Gas Output Fitting||1/16” (1.59 mm) Barbed hose fitting|
|Recommended Gas||Nitrogen or clean dry compressed air(Internally-mounted input gas filter provided)|
|Power Requirements||Power Module: 100 to 240 VAC, 50 to 60 Hz, 0.5 A (Direct Power Connection: 12 VDC, 1.5 A, 18 W)|
|Size||2.7” H x 8.2” W x 8.5” D (69 x 209 x 216 mm)|
|Weight||2.4 lb (1100 g)|