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Instruction EPI 8297

Product catalog summary

Overview

This document provides detailed technical specifications, installation instructions, and operational parameters for the Trafag Pressure Transmitter models EPR, EPI, and EPN, designed to operate within a temperature range of –40°C to +125°C (–40°F to +260°F).

1. Temperature Specifications

Storage Temperature: –40°C to +125°C (–40°F to +260°F)
Operating Temperature: –40°C to +125°C (–40°F to +260°F)

2. Electrical Connection and Output Signals

Output Types: 4–20 mA current loop (9–32 VDC supply), 0.5–4.5 VDC ratiometric output (5 VDC supply ±0.25 VDC)
Load Resistance: For 4–20 mA output, load resistance depends on supply voltage (USupply - 9 V) / 20 mA; for voltage output, ≥15 kΩ
Electrical Connectors: Various connector types including EN175301-803-A (DIN43650-A), MIL-C 26482, and cable options with ventilation via cable end
Protection Ratings: IP65 standard, IP67, and IP69K available depending on configuration and proper connector mounting

3. Mechanical Specifications and Installation

Pressure Connection Torque: Specified torque values for different thread types:
- G 1/4": 25 Nm ± 5 Nm
- R 1/4": Application-specific
- G 1/2" (manometer): 25 Nm ± 5 Nm
- NPT 1/4" and 1/2": 25 Nm ± 5 Nm
- M14x1.5 and M18x1.5 (conical seal 58°): 30 Nm ± 5 Nm
Cable Clamping Range: 6 to 11 mm diameter
Connector Alignment Procedure: Remove female connector, loosen black nut, adjust pins up to ±120°, retighten nut

4. Dimensions

Various model-specific dimensions provided, e.g., diameter approximately 27 mm, length varying between 41 mm and 65 mm depending on pressure range and model
Specific dimensions vary with nominal pressure and overpressure ratings

5. Pressure Ratings

The transmitters cover a wide range of nominal pressures and overpressure limits, summarized as follows:

Nominal Pressure (bar)	Nominal Pressure (psi)	Overpressure (bar)	Overpressure (psi)
0 ... 2.5	0 ... 30	5	70
0 ... 4.0	0 ... 50	8	115
0 ... 6.0	0 ... 100	12	170
0 ... 10	0 ... 150	20	290
0 ... 16	0 ... 250	32	464
0 ... 25	0 ... 400	50	725
0 ... 40	0 ... 500	80	1160
0 ... 60	0 ... 1000	120	1740
0 ... 100	0 ... 1500	200	2900
0 ... 160	0 ... 2000	320	4640
0 ... 250	0 ... 3000	500	7250
0 ... 400	0 ... 5000	800	11600
0 ... 600	0 ... 7500	1000	14500
0 ... 1000	0 ... 10000	1800	26100
0 ... 1600	0 ... 20000	3000	43500
0 ... 2000	0 ... 30000	3000	43500
0 ... 2500	0 ... 35000	3000	43500

6. Additional Notes and Recommendations

Proper mounting of connectors and adherence to torque specifications are critical for ensuring IP protection ratings and device reliability.
Ventilation is provided via cable end for cable-connected versions.
The manufacturer reserves the right to make technical changes to improve the product.
Contact information for Trafag AG is provided for technical support and inquiries.

Catalog excerpts

Betriebsanleitung Mode d'emploi Instructions Pressure Transmitter EPR/EPI/EPN Elektrischer Anschluss / Raccordement électrique / Electrical connection Schutzart/ Protection Ausführung Connexion électr. Electrical connection Ausgangssignal Signal de sortie Output standard with accessory 92 black yellow/green brown blue black yellow/green *Entlüftung über das Kabelende/ Ventilation par extrémité du câble/ Ventilation via cable end 2) Ausführung/ Connexion électrique/ Electrical connection 04/05/25/02: nur mit vorschriftsmässig montierter Kabeldose gültig/ valable seulement avec fiche femelle montée selon instructions/ provided female connector is mounted according to instructions Load resistance ISUPPLY USUPPLY 5 VDC ±0.25 VDC ratiometrisch/ ratiométrique/ ratiometric 829X.XX.XXXX.XX.23... Anziehdrehmoment Druckanschluss/ Couple de serrage raccord de pression / Torque moment pressure connection 829X.XX.XX17.XX... anwendungsspezifisch/dépend del'application/depending on application 25 Nm ± 5Nm (Manometer/ manomètre/ manometer) M14x1.5 (Kegeldichtung/ Joint conique/ Conical seal: 58°): 30 Nm ± 5Nm M18x1.5 (Kegeldichtung/ Joint conique/ Conical seal: 58°): 30 Nm ± 5Nm Betriebstemperatur / Température de service / Operating temperature Lagertemperatur / Température de stockage / Storage temperature –40°C ... +125°C (–40°F ... +260°F) Trafag AG Industriestrasse 11 CH-8608 Bubikon

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Überdruck / Surpression/ Overpressure Nenndruck Pression nominal Nominal pressure Überdruck Surpression Overpressure Nenndruck Pression nominal Nominal pressure Überdruck Surpression Overpressure Massbilder / Cotes d'encombrement / Dimensions 38.5 (p≤2.5bar, p>250bar) 36.6 (2.5bar < p ≤250bar) Cable clamping range 6...11mm Gewinde-Bohrung Taraudage Tapped hole Gewinde-Bohrung Taraudage Tapped hole 829X.XX.XX28.XX.XX Trafag AG Industriestrasse 11 CH-8608 Bubikon We reserve the right to make alternations as technical progress may warrant. 1. Remove the female connector 2. Release the black nut...

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