# Electronic differential pressure transmitter — DPT-EL

> In primary and secondary circuits

- Catalog code: dpt_el
- Model: DPT-EL
- Category: Pressure measurement › Process transmitters
- Product page: https://avigan.com.ua/wika/en/products/dpt_el
- Price: on request
- Supplier: AVIGAN (TOV VIKA Prylad), official WIKA partner in Ukraine

## Overview

In the process industry, differential pressure measurement using primary and secondary circuits has several advantages over conventional differential ...

## Applications

- Chemical and petrochemical industries
- Process engineering
- Pharmaceutical industry
- Food and beverage industry
- Hazardous areas

## Special features

- Simple, uncomplicated installation
- Mounting possible without diaphragm seal
- Elimination of capillaries, that can easily kink
- For applications to SIL 2 (SIL 3)
- Can be combined with two different designs of transmitters from model IPT-2x and/or model CPT-2x

## Specifications

| Parameter | Value |
|---|---|
| model | DPT-EL |
| product family | DPT |
| short description | Electronic differential pressure transmitter for primary and secondary circuits, combining models IPT-2x and CPT-2x for flexible configuration without capillaries. |
| subcategory | Differential pressure transmitter |
| certifications | NAMUR NE21; NAMUR NE43; NAMUR NE53; NAMUR NE107; 3.1 inspection certificate; 2.2 test report; DAkkS calibration certificate; Test certificate for measurement accuracy |
| safety integrity level | SIL 2 (option), up to SIL 3 in multi-channel redundant operation |
| ambient temp | -40 … 85 °C |
| ip rating | IP65 |
| languages in datasheet | en; de |
| accuracy class | See individual transmitter data sheets (IPT-2x, CPT-2x) |
| process connections | G 1/2 flush; G 1 flush; G 1 1/2 flush; G 1 hygienic flush |
| case material | PBT, polyester; Stainless steel 316L; Die-casting AlSi10Mg, powder-coated on PE basis; Die-casting AlSi10Mg, powder-coated |
| output signal | 4-20 mA with HART; 4-20mA; FOUNDATION™ Fieldbus; 4-20 mA; FOUNDATION Fieldbus; PROFIBUS PA; PROFIBUS ® PA; 4-20mA with HART; PROFIBUS® PA |
| power supply | DC 12...35 V (non-Ex), DC 12...30 V (Ex ia) |
| electrical connection | 4-core spring-clip terminals |

## Datasheet tables

| Model | Description |
|---|---|
| Models IPT-20 and IPT-21 | Process transmitter with metal measuring cell with open pressure port or with flush process connection |
| Models CPT-20 and CPT-21 | Process transmitter with ceramic measuring cell with open pressure port or with flush process connection |

### Connecting cable between primary and secondary instrument

| 1 | 2 |
|---|---|
| Mechanical data |  |
| Construction | Wires, strain relief, braided screen, metal foil, sheath |
| Standard length | 5 m[16.4 ft] |
| Max. length | 25 m[82.02 ft] |
| Min. bending radius (at 25 °C [77 °F]) | 25 mm[0.985 in] |
| Diameter | ■ Approx. 8 mm[0.315 in] ■ Approx. 6 mm[0.236 in] |
| Material | PE, PUR |
| Colour | Black |
| Electrical data |  |
| Wire cross-section | 0.34 mm² (AWG 22) |
| Wire resistance | < 0.05 Ω/m [0.015 Ω/ft] |

### Output signal

| Signal types | ■ 4 ...20mA ■ 4 ... 20 mAwith a superimposed HART ® communication signal (option: SIL qualification) ■ HART ® specification: 7.3 ■ FOUNDATION™ Fieldbus ■ PROFIBUS ® PA |
|---|---|
| Load in Ω | (U B - U Bmin ) / 0.022 A |
| Damping | 0 ... 999 s, adjustable After the set damping time the instrument outputs 63 %of the applied pressure as output signal. |
| Step response time | < 80 ms (= dead time < 25 ms + rise time 10 ... 90 %<55ms) |

| 1 | 2 | 3 |
|---|---|---|
| Signal type | Backlighting |  |
|  | Inactive | Active |
| 4 ... 20 mA | DC 12 ...35V | DC 16 ...35V |
| 4 ... 20 mA with a superimposed HART ® communication signal | DC 12 ...35V | DC 16 ...35V |
| FOUNDATION™ Fieldbus | DC 12 ...32V | DC 16 ...32V |
| PROFIBUS ® PA | DC 12 ...32V | DC 16 ...32V |

| 1 | 2 | 3 |
|---|---|---|
| Signal type | Backlighting |  |
|  | Inactive | Active |
| 4 ... 20 mA | DC 12 ...30V | DC 16 ...30V |
| 4 ... 20 mA with a superimposed HART ® communication signal | DC 12 ...30V | DC 16 ...30V |
| FOUNDATION™ Fieldbus | DC 12 ...24V (DC 12 ...17.5V Fisco) | DC 16 ...24V (DC 16 ...17.5V Fisco) |
| PROFIBUS ® PA | DC 12 ...24V (DC 12 ...17.5V Fisco) | DC 16 ...24V (DC 16 ...17.5V Fisco) |

### Material

| Case, primary instrument | 2 |
|---|---|
| Single chamber case, plastic | PBT, polyester |
| Single chamber case, aluminium | Die-casting AlSi10Mg, powder-coated on PE basis |
| Single chamber case, cast stainless steel | Stainless steel 316L |
| Single chamber case, electropolished stainless steel, deep-drawn | Stainless steel 316L |
| Double chamber case, plastic | PBT, polyester |
| Double chamber case, aluminium | Die-casting AlSi10Mg, powder-coated on PE basis |
| Double chamber case, cast stainless steel | Stainless steel 316L |
| Case, secondary instrument |  |
| Single chamber case, plastic | PBT, polyester |
| Single chamber case, aluminium | Die-casting AlSi10Mg, powder-coated on PE basis |
| Single chamber case, cast stainless steel | Stainless steel 316L |
| Single chamber case, electropolished stainless steel, deep-drawn | Stainless steel 316L |

| Logo | Description |
|---|---|
| SIL IEC 61508 / IEC 6151 | SIL 2 (option) 1) Functional safety ■ 1-channel operation up to SIL 2 ■ Multi-channel operation (homogeneous, redundant) up to SIL 3 |
| - | NAMUR recommendations NE21 - Electrical compatibility of equipment NE43 - Signal level for failure information NE53 - Compatibility of field instruments NE107 - Self-monitoring and diagnostics |

| Description | 2 | Order number |
|---|---|---|
|  | Display module, model DIH52-F 5-digit display, 20-segment bar graph, without separate power supply, with additional HART ® func- tionality. Automatic adjustment of measuring range and span. Secondary-master functionality: Setting the measuring range and unit of the connected transmitter possible using HART ® standard commands. Optional: Explosion protection per ATEX | On request |
|  | HART ® modem for USB interface, specifically designed for use with notebooks (model 010031) | 11025166 |
|  | HART ® modem for RS-232 interface (model 010001) | 7957522 |
|  | HART ® modem for Bluetooth interface Ex ia IIC (model 010041) | 11364254 |
|  | PowerXpress HART ® modem, with optional power supply (model 010031P) | 14133234 |
|  | Welding socket for process connection G½flush | 1192299 |
|  | Welding socket for process connection G1flush | 1192264 |
|  | Welding socket for process connection G1½flush | 2158982 |
|  | Welding socket for process connection G1hygienic flush | 2166011 |
|  | Instrument mounting bracket for wall or pipe mounting, stainless steel | 14309985 |
|  | Overvoltage limit for transmitters, 4 ... 20 mA, ½NPT, series connection, Ex i and Ex d | 14013656 |
|  | Overvoltage limit for transmitters, 4 ...20 mA, M20 x 1.5, series connection, Ex i and Ex d | 14002489 |
|  | Overvoltage limit for transmitters, FF / PROFIBUS, ½NPT, series connection, Ex i and Ex d | 14013658 |
|  | Model DI-PT-R display and operating module, case cover aluminium with window | 12298884 |
|  | Model DI-PT-R display and operating module, case cover electropolished cast stainless steel with window | 13315269 |
|  | Model DI-PT-R display and operating module, case cover plastic with window | 13315277 |
|  | Model DI-PT-R display and operating module, case cover cast stainless steel with window for single chamber case | 12298906 |
|  | Model DI-PT-R display and operating module, case cover cast stainless steel with window for double chamber case | 14045598 |
|  | Model DI-PT-E external display and operating module, aluminium case | 12354954 |
|  | Model DI-PT-E external display and operating module, cast stainless steel case | 12355101 |
|  | Model DI-PT-E external display and operating module, plastic case | 14134247 |

## Documents

- [ds_pe8623_en_co_967af2](https://avigan.com.ua/wika/docs/wika/ds_pe8623_en_co.pdf) — PDF, 1318 KB, en

## Configurator

This product has an interactive configurator on its product page.

```
DPT-EL-I HBG -BD250-I ARBG -ZUA
```