Sampling Rates and Applications

Pump Tubing

The standard pump tubing is 5/8" OD (16 mm) medical grade silicone, which attaches easily to 1/2" OD (13 mm) down-hole tubing. An adaptor kit, which allows the use of 3/8" OD (10 mm) tubing, provides lower sampling rates. This tubing attaches easily to 1/4" OD (6 mm) down-hole tubing.

To provide high sample integrity, the sample comes in contact only with the tubing. Replacing the tubing between locations avoids the possibility of cross-contamination. To reduce lengthy decontamination procedures, simply dedicate the inexpensive down-hole tubing.

 

Power Source & Motor

A 12 ft. (4 m) power cord uses alligator clips to connect to almost any 12 volt DC power source that can supply at least 3–5 amps at maximum draw (such as auto, marine or small gel cell battery). The pump may be connected directly to your vehicle battery.

Optionally, the power cables can be provided with additional banana plugs to use a voltage converter and run the pump with 230V AC.

The variable speed motor is reversible, has an easy-toreset circuit breaker (no fuse to replace), and has reverse polarity protection to prevent damage to the pump.

 

Sampling Rates

The Model 410 Peristaltic Pump has variable pumping rates, using two different sizes of silicone pump head tubing. With the standard 5/8" OD (16 mm) tubing it delivers from 120 ml/min to almost 3.5 L/min.

The 3/8" OD (10 mm) tubing adaptor kit allows a sample rate as low as 40 ml/min and up to 900 ml/min. This low rate is ideal for low-flow sampling and the filling of small sample bottles.

The Peristaltic Pump's reverse action is ideal for back flushing when using the Drive-Point Profiler.