# Reed-chain level sensor — RLT-3000

> For industrial applications, with temperature output

- Catalog code: rlt_3000
- Model: RLT-3000
- Category: Level measurement › Continuous measurement with float
- Product page: https://avigan.com.ua/wika/en/products/rlt_3000
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

The model RLT-3000 level sensor with temperature output combines the recording of the level and temperature of liquids in a single measuring point. The ...

## Applications

- Combined level and temperature measurement of liquids in machine building
- Control and monitoring tasks for hydraulic power packs, compressors and cooling systems

## Special features

- Media compatibility: Oil, water, diesel, refrigerants and other liquids
- Level: Current output 4 ... 20 mA
- Temperature: Pt100, Pt1000, accuracy: Class B

## Specifications

| Parameter | Value |
|---|---|
| model | RLT-3000 |
| product family | RLT |
| short description | Reed-chain level sensor with temperature output for industrial applications, suitable for oil, water, diesel, refrigerants and other liquids. |
| subcategory | Reed-chain technology with optional analogue amplifier |
| certifications | RoHS; China RoHS; CE; EMC EN 61326 |
| ambient temp | -30 … 80 °C |
| ip rating | IP66 |
| languages in datasheet | en; de |
| technology | float |
| level ranges m | 0.15 … 1.5 m |
| output signal | Pt100; Pt1000; 4 ... 20 mA, 2-wire; 4...20 mA; 4...20mA, 2-wire |
| accuracy | For reed-chain technology, the accuracy corresponds to the resolution. |
| process connections | G1; G1½; G2; G 1; G 1 ½; G 2; Flange DN 50, form B per DIN 2527/EN 1092, PN 16; Flange DN50, form B per DIN2527/EN1092, PN16 |
| wetted parts material | Stainless steel 1.4571 (316 Ti); Float: 1.4571 (316Ti) or Buna / NBR; Stainless steel 1.4571 (316Ti); Buna/NBR |
| process temp | -30 … 120 °C |
| process pressure max bar | 40 |
| power supply | DC 12...32 V |
| electrical connection | Terminal MU005+, MU005- (Level); MU004+, MU004- (Temperature) |

## Datasheet tables

| Level sensor, model RLT-3000 | Level | Temperature |
|---|---|---|
| Measuring principle | Reed-chain technology with optional analogue amplifier | Pt100 or Pt1000 measuring resistor |
| Measuring range | The measuring range Mis determined from the selected guide tube length L and the position of the 100 %mark. For dimensions see drawing | ■ Pt100 ■ Pt1000 |
| Guide tube length L | 150 ... 1,500 mm[6 ... 59 in], greater lengths on request |  |
| Output signal | Current output, 4 ...20 mA, 2-wire Power supply:DC 12 ...32V Load in Ω: ≤ (power supply - 12 V) / 0.02 A | ■ Pt100, 2-wire ■ Pt1000, 2-wire |
| Accuracy | ■ 24 mm[0.9 in] 1) ■ 12 mm[0.5 in] 2) ■ 10 mm[0.4 in] 3) ■ 6 mm[0.2 in] 2) ■ 3 mm[0.1 in] 2) For reed-chain technology, the accuracy corresponds to the resolution. | Class B per DIN EN 60751 |
| Mounting position | Vertical ±30° |  |
| Process connection | ■ G1, installation from outside ■ G1½, installation from outside ■ G2, installation from outside |  |
| Material |  |  |
| Wetted | Process connection, guide tube: Stainless steel 1.4571 (316 Ti) Float:See table on page 3 |  |
| Non-wetted | Case: Stainless steel 1.4571 (316Ti) Electrical connection:See table below |  |
| Permissible temperatures |  |  |
| Medium | -30 …+100 °C [-22 …+212 °F] |  |
| Ambient | -30 …+80 °C [-22 …+176 °F] |  |
| Storage | -30 …+80 °C [-22 …+176 °F] |  |

| Electrical connections | Ingress protection | Material |
|---|---|---|
| 'Standard' connection housing Dimensions: 75 x 80x57mm [3.0 x 3.1 x 2.2 in] For cable diameter: 5 ... 10 mm[0.2 ... | IP66 | ■ Aluminium ■ Glands from polyamide ■ Brass ■ Stainless steel |

| Float | Form | Outer diameter∅D | Height H | Operating pressure | Medium temperature | Density | Material |
|---|---|---|---|---|---|---|---|
|  | Cylinder 1) | 44 mm[1.7 in] | 52 mm[2.0 in] | ≤ 16 bar [≤ 232 psi] | ≤ 120 °C [≤ 248 °F] | ≥ 750 kg/m³ [46.8 lbs/ft³] | 1.4571 (316Ti) |
| H | Cylinder 2) | 30 mm[1.2 in] | 36 mm[1.4 in] | ≤ 10 bar [≤ 145 psi] | ≤ 80 °C [≤ 176 °F] | ≥ 850 kg/m³ [53.1 lbs/ft³] | 1.4571 (316Ti) |
| ∅D | Cylinder | 25 mm[1.0 in] | 20 mm[0.8 in] | ≤ 16 bar [≤ 232 psi] | ≤ 80 °C [≤ 176 °F] | ≥ 750 kg/m³ [46.8 lbs/ft³] | Buna / NBR |
| H | Sphere 3) | 52 mm[2.0 in] | 52 mm[2.0 in] | ≤ 40 bar [≤ 580 psi] | ≤ 120 °C [≤ 248 °F] | ≥ 750 kg/m³ [46.8 lbs/ft³] | 1.4571 (316Ti) |

### Aluminium case

| 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
|  | Level | Temperature Pt100/Pt1000 |  |  |
|  | 4 ... 20 U+ | Terminal MU005+ | + | Terminal MU004+ |
|  | U- | Terminal MU005- | - | Terminal MU004- |

### Electrical safety

| Reverse polarity protection | U+ vs. U- |
|---|---|
| Insulation voltage | DC 1,500V |
| Overvoltage protection | DC 40V |

| 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Process connection | Outer diameter float∅D |  |  |  |
|  | ∅30 mm[1.2 in] | ∅44 mm[1.7 in] | ∅52 mm[2.0 in] | ∅25 mm[1.0 in] |
| G 1 (from outside) | 35 mm[1.4 in] | - | - | - |
| G 1 ½(from outside) | 35 mm[1.4 in] | 45 mm[1.8 in] | - | 25 mm[1.0 in] |
| G 2 (from outside) | 40 mm[1.6 in] | 50 mm[2.0 in] | 50 mm[2.0 in] | 25 mm[1.0 in] |
| Flange (from outside) | 20 mm[0.8 in] | 30 mm[1.2 in] | 30 mm[1.2 in] | 5 mm[0.2 in] |

| 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Dead band | Outer diameter float∅D |  |  |  |
|  | ∅30 mm[1.2 in] | ∅44 mm[1.7 in] | ∅52 mm[2.0 in] | ∅25 mm[1.0 in] |
| T | 35 mm[1.4 in] | 45 mm[1.8 in] | 45 mm[1.8 in] | 45 mm[1.8 in] |

| G | L 1 | Spanner width |
|---|---|---|
| G1 | 16 mm[0.63 in] | 41 mm[1.6 in] |
| G1½ | 18 mm[0.71 in] | 30 mm[1.2 in] |
| G2 | 20 mm[0.79 in] | 36 mm[1.4 in] |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity ■ EMCdirective EN 61326 emission (group 1, class B) and interference immunity (industrial application) ■ RoHS directive | European Union |

| Logo | Description |
|---|---|
| - | China RoHS directive |

| Replaced model | Current model | Description |
|---|---|---|
| MG01 | RLT-1000 | Level sensor, stainless steel, terminal housing |
| MG02 | RLT-1000 | Level sensor, stainless steel, cable outlet |
| MG03 | RLT-1000 | Level sensor, stainless steel, connector |
| MG05 | RLT-2000 | Level sensor, plastic, terminal housing |
| MG06 | RLT-2000 | Level sensor, plastic, cable outlet |
| MG07 | RLT-2000 | Level sensor, plastic, connector |
| MG09 | RLT-1000 | Level sensor, stainless steel, terminal housing, accuracy/resolution 3 or6mm |
| MG10 | RLT-1000 | Level sensor, stainless steel, connector, accuracy/resolution 3 or6mm |
| MG11 | RLT-2000 | Level sensor, plastic, terminal housing, accuracy/resolution 3 or6mm |
| MG12 | RLT-2000 | Level sensor, plastic, connector, accuracy/resolution 3 or6mm |
| MG13 | RLT-1000 | Compact level sensor, stainless steel, terminal housing |
| MG14 | RLT-1000 | Compact level sensor, stainless steel, connector |
| TN 200 | RLT-3000 | Level sensor, stainless steel, 4 …20mAtemperature output signal |
| TN 240 | RLT-3000 | Level sensor, stainless steel, Pt100 temperature output signal |

## Documents

- [ds_lm5005_en_co_37f462](https://avigan.com.ua/wika/docs/wika/ds_lm5005_en_co.pdf) — PDF, 413 KB, en
- [ds_rlt_en_co_3259ac](https://avigan.com.ua/wika/docs/wika/ds_rlt_en_co.pdf) — PDF, 43 KB, en

## Configurator

This product has an interactive configurator on its product page.

```
RLT-3000-1 - -1AZ- - O-Z
```