manufacturer :       Rainin

model :                   Dynamax RP-1

annotation :           Dokumente engl .

General Description

The Dynamax RP-1 Peristaltic Pump is specifically designed for fluid transfer. The rotating head has ten stainless-steel rollers. As the head rotates, five of the rollers press the tubing up against the compression arm, producing flow by peristaltic action. Five rollers constantly in contact with the tubing ensures low pulsation, smooth flow, and high pressure. Model RP-1 is ideal for critical liquid chro­matography, gradient generation, and flow analyzer applications.

The RP-1 incorporates a unique cam design: the adjustment screw does not press the compression arm directly. Instead, turning the adjustment screw in the RP-1 moves a cam which applies gradual force to the compression arm. This results in more precise flow control and reduced tubing wear.

RP-1 is powered by a high torque stepper motor, controlled by a microprocessor with unique feedback circuitry for good speed stability, even at very low flow rates. Speed stability is maintained between 0° – 40°C and against back-pressures of up to 5 bars. Pump speed is shown in revolutions per minute (rpm) on a liquid crystal display (LCD) on the pump front panel. Pump speed and direction of rota­tion are controlled by a membrane keypad next to the display.

Several pump heads are available: a single-channel model and three multi-channel versions: 2-, 4-, and 8-channel. Individual tubing compression settings on the multi-channel pump heads allow different diameter tubing to be used for each channel. Independent compression settings for each channel ensure optimum flow rate and long tubing life.

Fixed collars bonded to the tubing allow easy tube installation at the proper tension, in turn ensuring that the tubing diameter is optimized and not altered from day to day. Precise and accurate motor speed setting, correct tubing tension, and reproducible tubing diameter all contribute to ensuring reproducible flow rates.

Specifications

Head speed:

0 to 48 rpm

Torque:

greater than 3 N-m across full operating range at 115VAC

Speed stability:

0.5%

Speed adjustment:

0.00 to 9.99 rpm in 0.01 rpm

increments

10.0 to 48.0 rpm in 0.1 rpm

increments

Flow rate:

0-37 mL /min max at 0 backpressure (depending on tubing diameter)

Max back-pressure:

70 psi

Wetted surfaces:

PVC, Silicon, Viton (tubing only)

Flow tubing diameter:

0.25 mm ID - 4 mm ID

Line voltage:

110V (nominal): 90V to 130V

220V (nominal): 180V to 260V

(The rated voltage implies a ±10% fluctuation of 100-240VAC in mains power output; the RP-1 will operate between 90 and 260 volts.)

Line frequency:

50 - 60 Hz

Power consumption

40 watts max, 20 watts typical

Temperature:

4° to 40°C

Humidity:

up to 95% non-condensing

Operating position:

vertical ± 5°

Prices and specifications are subject to change without notice.

Pump Options

Approx                                                            Approx

Model               Size                                                                 Weight

-------------------------------------------------------------------------------------------

1-channel         160 W x 190 D x 210 H (mm)                        4 kg

6.3 W x 7.5 D x 8.27 H (in)                             8.75 lbs

2-channel         160 W x 190D x 215 H (mm)                         4.2 kg

6.3 W x 7.5 D x 8.46 H (in)                             9.25 lbs

4-channel         160 W x 190D x 235 H (mm)                         4.4 kg

6.3 W x 7.5 D x 9.25 H (in)                             9.75 lbs

8-channel         160 W x 190 D x 275 H (mm)                        5.3 kg

6.3 W x 7.5 D x 10.83 H (in)                           11.75 lbs

Pump body      160 W x 190 D x 165 H (mm)                        3.7 kg

6.3 W x 7.5 D x 6.5H (in)                                8.25 lbs