for portable flow measurement
For portable ultrasonic flow measurements from slight to heavily polluted media using the Doppler principle in part filled and full pipes and channels.
General description
Measurements are absolutely necessary when it comes to assess the hydraulic conditions of sewage networks or special constructions.
The importance of portable, power-independent flow meters for determination of infiltration, channel efficiency, sewerage master planning or influent control is hence continuously rising. Reliable and significant data representing typical operational conditions of the measurement places are to be gained with the help of these data.
It is very often required to carry out the measurements only for a few weeks or months to obtain representative data.
A measurement system for portable flow measurements basically consists of a transmitter Type PCM for power supply, data entry, indication and data storage plus a sensor for the recording of measurement data.
Sensor construction as well as the built-in pickups may be customised individually according to the conditions prevailing on site.
Typical PCM F applications
| Common | |
|---|---|
| Power supply | Rechargeable battery: 12V/12 Ah, lead gel
Battery box for 12 Mono cells 1.5V (Type LR) Power adapter 100 – 240 V AC; 50/60 Hz
|
| Enclosure | Material: Polypropylene, impact-proof
Weight: approx. 2.0 kg (without sensor and battery) Protection: IP 67 with closed and locked lid
|
| Operating temperature | -20 °C to +50 °C |
| Storage temperature | -30 °C to +70 °C |
| Max. humidity | 90 %, non-condensing |
| Display | Back-lit full graphic LC display, 128 x 64 Pixel |
| Operation | 18 keys, menus in German, English, French, Italian, Spanish, Polish, Czech and Danish |
| Inputs | 1 x plug socket 4 – 20 mA for external level (2-wire probe) or 1 x active air-ultrasonic sensor (OCL) for level measurement
1 x active compact Doppler sensor Type KDA for flow velocity and level measurement 1 x multifunctional socket for digital and analog inputs and outputs 1 x connection socket for combined power adapter and battery charger or alternative power supply
|
| Outputs (via multi¬functional socket) | 1 x relay (SPDT)
switching capacity: 250 VAC/30 VDC, 5A switching frequency: 5 Hz 1 x voltage output 0 – 10 V
|
| Storage cycle | 1 – 60 minutes, time-cyclic or event-based |
| Data memory | External on plug-in Compact Flash Card up to 128 MB
internal RAM with 8 MB
|
| Data transmission | Via plug-in Compact Flash Card |
Robust portable flow meter for long-term monitoring of full pipes
The Flexim FLUX
Transmitter for accurate flow measurement using the ultrasonic transit time difference method with non-contact clamp-on sensors. Especially for drinking water applications.
The Dynasonics® IS-4000 Open Channel flow meter measures level, flow rate and total volume of water flowing through weirs and flumes. It’s ideal for applications where sediment does not build up.
