Features
- Employs PID modulated rotary pumps instead of variable resistance flow generators, for quiet and efficient operation
- User can calibrate and change multiple settings on the instrument, with flow set-point and actual flow displayed during operation
- Wide ranges of 5-100, 50-500, and 400-2000 SLPM
- Ideal for medium to large mammals, from goats up to elephants or whales
- Long-life pump with very low noise
Description
The FlowKit™ is an integrated low-noise pump and mass flow generator that accurately, quietly and economically provides large flow rates. It’s designed for applications such as large animal respirometry or air circulation in small, controlled environments. Available in 3 different models – the FK-100, FK-500 and FK-2000 – for flow ranges of 5-100, 50-500, or 400-2000 liters per minute.
The FlowKit relies on modulating a powerful but quiet pump in order to create the set mass flow rate. Ultra-efficient PID (proportional integral derivative) control is used for quick response to setpoint changes and minimal variation from the setpoint. As a result, the pump works only as hard as it has to, greatly reducing pump wear, power consumption and noise.
A sub-sampling pump simplifies plumbing to a respirometry system, and features both analog and serial outputs for easy connection to a data acquisition system. The FlowKit requires no temperature or barometric pressure correction because it generates mass or molar flow rates already corrected to STP. It also features a user-configurable alarm to alert users locally and remotely if a fault develops.
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Specifications
| Accuracy and Resolution: | Accuracy better than 2% of full scale typical, resolution 1 liter |
| Analog Output: | BNC |
|
0-5V for 0-100 L/min |
|
0-5V for 0-500 L/min |
|
0-5V for 0-2000 L/min |
| Control algorithm: | PID (Proportional-Integral-Derivative) control for optimum stability; all PID parameters are user-adjustable |
| Operating Temperature: | 5 – 45 degrees C, relative humidity non-condensing |
| Panel Display: | Digital, 2 x 16 alphanumeric LCD |
| Range | |
|
5-100 L/min STP |
|
50-500 L/min STP |
|
400-2000 L/min STP |
| Serial Output: | RS232-8N1; baud rate 9600; both polled and broadcast modes available |
| Technology: | Calibrated, linearized mass flow meter and efficient, controllable rotary pump |
| Connections: | Main flow – cam & groove 1.5-inch coupler (FK-2000 has 2-inch coupler); sub sample – nickel-plated barb fittings for 1/8 in (3mm) ID flexible or semi-rigid tubing |
| Recommended Calibration Interval: | 1 Year |
| Power Requirements: | 110 to 240VAC |
| Dimensions (W x D x H): | 17 x 15 x 8 in. (43.2 x 38.1 x 20.3 cm) |
| Weight: | 20 lbs (9.1 kg) |
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