Dinel CLM–70 Capacitive Level Meter are compact measuring devices consisting of the level meter body and a measuring electrode. The level meter body contains measurement electronics and a display module. The electronics measure the electrical capacity of the electrode system, which depends on the level height.
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| Dinel CLM–70 Capacitive Level Meter |
The level meter’s electrical output corresponds to the capacity (level height) and the measured data are shown on the meter’s display. The level meter can be adjusted through a display and adjustment module positioned at the top of the sensor under the transparent lid.
The level meter has a 4–20 mA current output with HART® communication. The level meter is fed through a cable connected to the terminal block located under the display and adjustment module.
Level meters are available in several sensing electrode modifications (rod and rope-type electrodes). Electrodes may be coated with insulation, which is important for their functioning in the case of adherent, electrically conductive, and aggressive media. Rod electrodes are also available in a version provided with a reference tube or a pair of parallel electrodes for measuring liquids in non-conductive tanks.
Dinel CLM–70 Capacitive Level Meter Features:
- A wide range of applications, direct installation in storage silos, hoppers, vessels, sumps, etc.
- Variants with fully coated electrodes for aggressive or electrically conductive media.
- Measured data in real-time on the display (OLED or LCD available).
- Analog output 4 - 20 mA with digital two-way communication HART®.
- Comparing with reflective level meters, CLM-70 measures along all the electrode in full range (no dead zones).
- Contrary to radar level meters, also media with extremely low dielectric constants (εr) can be measured.
- Possible copying the configuration between level meters using the display module.
Technical Specifications
| Supply voltage | 18 ... 36 V DC |
| Output | 4 ... 20 mA (two-wire), HART® |
| Current output resolution | 10 μA |
| Capacity range | 0 to 3,000 pF |
| Resolution | 0.01 pF for capacities from 0 to 300 pF |
| 0.1 pF for capacities from 300 to 3,000 pF | |
| Temperature error (for a temperature range from -30 to 70 °C) | <1 pF up to 100 pF |
| <1% of the measured value from 100 to 3,000 pF | |
| Measuring frequency | 100 to 800 kHz |
| Non-linearity (electronics) | max. 1% |
| Damping (time constant) | Adjustable 0 … 99 sec |
| Maximum slew rate | <1 sec (0 … 100%) ; for damping 0 sec |
| Current output error | max. 80 μA |
| Display/settings | display module |
| Protection class | IP67 |
| Maximal resistance of current output load | 270 Ω / 180 Ω / 90 Ω 2) |
| Rmax for voltage - 24V DC / 22V DC / 20V DC | |
| Maximum length of measuring electrodes | see dimensional drawing |
| Ambient temperature range | -30 °C to +70 °C |
| Recommended cable | PVC 2× 0.75 mm2 shielded |
| Cable gland tightening torque | 3 Nm |
| Weight – without electrode approx. | 0.5 kg (1 kg NT variant) |
Download Catalog: CAPACITIVE LEVEL METERS CLM-70
Ref: Dinel.cz
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