ENS 3000 Series
The ENS 3000 is an electronic level switch with integral display. The unit has 1,2 or 4 switching outputs and an analogue output signal as an option.
Along with the standard minimum and maximum switch points, it is now possible with the 4 output version, to set additional warning signals to prevent problems such as tank overflow or aeration of the pump.
The ENS 3000 is suitable for oil as well as water. The fluid type can be selected via the menu.
The main applications of the ENS 3000 are primarily found in hydraulics, e.g. for fluid level monitoring of a tank.
Technical Details
| INPUT DATA | ||
| Fluid level | Sensor type | capacitive fluid level sensor |
| Probe length | 9.80˝, 16.20˝, 20.50˝, 28.70˝ | |
| Active zone | 6.70˝, 10.20˝, 14.20˝, 23.20˝ | |
| Inactive zone | 3.10˝, 5.95˝, 6.35˝, 5.50˝ | |
| Maximum speed of change in fluid level | 9.80˝ : 4.57˝/s 16.20˝ : 2.36˝/s 20.50˝ : 3.15˝/s 28.70˝ : 3.94˝/s | |
| Repeatability | ≤ 2 %FS* | |
| Switching point accuracy | ≤ 2 %FS | |
| Temperature | Sensor type | semiconductor sensor |
| Measuring range | 13° to 212°F (-25° to 100°C) | |
| Accuracy | ± 2.7°F (1.5°C) | |
| Reaction speed (T90) | 180 s | |
| OUTPUT DATA | ||
| Analogue output | With 1 or 2 SP: selectable 0 to 10V or 4 to 20mA; 0 to 10V (ohmic resistance min. 1 kΩ) or 4 to 20mA (ohmic resistance max . 500Ω) corresponds to measuring range With 4 SP: 0 to 10V (ohmic resistance min. 1 kΩ) corresponds to measuring range | |
| Switching output | 1, 2 or 4 | |
| Type | PNP transistor output Programmable as N/O or N/C | |
| Assignment of switching output | Temperature or fluid level (user selectable) | |
| Switching current | 1 or 2 SP: max. 1.2 A each 4 SP: max. 0.25 A each | |
| Switching cycles | > 100 million | |
| AMBIENT CONDITIONS | ||
| Ambient temperature range | 32° to 140°F (0° to 60°C) | |
| Operating temperature range | 32° to 140°F (0° to 60°C) | |
| Storage temperature range | -40° to 176°F (-40° to 80°C) | |
| Fluid temperature range | 32° to 140°F (0° to 60°C)** | |
| CE mark | EN 61000-6-1, EN 61000-6-2 EN 61000-6-3, EN 61000-6-4 | |
| Vibration resistance | approx. 5 g | |
| Shock resistance | approx. 25 g | |
| OTHER DATA | ||
| Max. tank pressure | 7 psi (temporary 40 psi, t < 1 min) | |
| Supply voltage | 18 to 35 V with analogue output 9 to 35 V without analogue output | |
| Protection class | IP 67 | |
| Fluids | Hydraulic oils (mineral based) synthetic oils, water containing fluids*** | |
| Components in contact with the fluid | Ceramic | |
| Display | 4 digit, 7-segment LED, red height of digits 0.28˝ | |
| Residual ripple supply voltage | ≤ 5% | |
| Protection against reverse polarity of the supply voltage, excess voltage, override and short-circuit protection | standard | |
| Note: FS (Full Scale) = relative to the full measuring range *specified for calm, non-turbulent fluid **larger temperature range on request ***other fluids on request | ||