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 (0-15 psi or 0-100 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.
More Info
MPPI-3 Specifications
| Input Pressure Range | 0 – 100 psi (0 – 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 V AC, 50 to 60 Hz, 0.5 A (Direct Power Connection: 12 V DC, 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) |