EP Ehrler Prüftechnik Engineering GmbH

Full service provider in measurement technology

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1977

Ehrler & BeckStuttgart /

Leonberg

Warmbronn /

Renningen

1983

Ehrler PrüftechnikEchterdingen /

Steinenbronn

1999 / 2000

Move to

Zaisenhausen

2008

Move to

Niederstetten

2011 & 2012

Expansion of

the

mounting

surfaceNiederstetten

2016

Laboratory relocation &

expansion of the office spaceNiederstetten

2015

Expansion of the

software department &

the mounting surfaceNiederstetten

EP-E history

2018

Takeover of the business

shares of EPE and EPI by Dr.

Ing. Födisch Environment AG

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EP-E Range

Measuring and calibration

systems for flow

(air/gas/fluids)

LabVIEW, SPS S7,

Wonderware, C Sharp

Calibration, In-house/On-site,

spare parts, maintenance &

service

Test systems for flow,

leakage, pressure and

temperature

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Measurement & Calibration systems for:

Air Flow

Gas Flow

Fluid Flow

Standard solutions

Full service provider

in measurement technology

Different levels of accuracy:

Primary standards (NMI)

Laboratory standards (DAkkS)

Industry standards

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Flow measurement and calibration systems for air and gases

EP LMF® - LaminarMasterFlow®

High precision flow measurement of gases and air

• Flow range up to 700 m³/h (opt. 4000 m³/h)

• Variable system configuration

• Fast and accurate measurement

• Calibration of gas meters, MFM, MFC, LFE,

venturi nozzles

LMF®-Konfigurator on our website!

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Calibration standards - Flow

BP250 – Bell Prover | System PTB

Primary standard 250 m³/h

• Flow calibration with air

• Traceable to SI units length and time

• Uncertainty ≤ 0.06% (k = 2)

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Calibration standards - Flow

SMF®6500 - SonicMasterFlow®

Calibration stand with sonic nozzles

• Calibration stand with up to 13 critical nozzles

• Flow generation up to 6500 m³/h

• Highest accuracy - up to 0.12% MV

• Flexible adaptation of nozzles to customer requirements

• Gas meter calibration up to G 4000

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EP systems for natural gas

GMC - G1,6..G400 Calibration of domestic gas meters

Calibration stand with sonic nozzles

• Modular system design

• Optional SMF® system with 9 nozzles

• Test bench type A: G1,6 to G10

• Test bench type B: G10 to G65

• Test bench type C: G65 to G400

• Fast and stable regulation of the volume flow

• Modular system structure for 1 to 24 test pieces

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BTB Blower Test Bench

BTB10.000 – Fan test rig

Characteristic line test bench

for suction operation according to DIN EN ISO 5801

• Flow measuring system with 2 LFE measuring sections and

beta sensor (Wilson-Staugitter) up to 10.000 m³/h

• Pressures up to -100 Pa

• Measuring accuracy up to ± 1% MV

• Universal clamping plate for testing various test specimens

• Optional: Switch from suction to blowing operation

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Calibration pyramid

National Standards

EP Bell Prover (0.06 % unc.)

EP Nozzle test bench

SMF4000 (0.15 % unc.)

EP BTB - Blower test bench (0.5 % unc.)

Blower (1…x % acc.)

SI unitsm, s

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Test systems forFlow

Test systems forLeakage

Test systems forPressure

Test systems forTemperature

Special solutions

Full service provider

in measurement technology

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Calibration standards - Flow

HPPP480 - High Pressure Piston Prover

Primary standard with integrated nozzle register

for natural gas up to 100 bar / volumetric flow 480 m³/h

• Nozzle register for flow stabilization

• Reference gas meters and nozzle registers as secondary standards

• High-precision calibration standard: Uncertainty up to ≤ 0.07% (k = 2)

• Calibration pressure variable up to 100 bar

• Traceability to the SI units length and time

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Endurance test rig, pressure and temperature

PTCB6000 - Pressure & Temperature Change Test Bench

• Test with different pressure curves: trapezoid, sine, triangle

• Pressure change test from -0.8 to 6 bar rel.

• Media temperature up to 300 ° C

• Environmental simulation from -40 to 200 ° C

Examples of test pieces:

Intercooler, heat exchangers, pressurized housing, reservoir for oil and water, valves, filter housing

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VTB - Valve Test Bench

VTB550B - Function test bench for high pressure valves

Functional test, internal & external leak test

• Test medium: pressure & air

• Test pressure: 2 ... 550 bar

• Volume flow: 0.1 ... 1000 cm³/min

• Use of laminar flow elements (LFE)

• High measuring accuracy

• Flexible device adaptation

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Measurement & Calibration

DAkkS certification

Standards ISO 17025 & ISO 9001

Training & WorkshopsAt EP-site & In-house at customer

Calibration & Service

Full service provider

in measurement technology

Maintenance & Services

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Services / Engineering & Consulting

Services from consulting & project planning to

construction & maintenance!

• We analyze, advise & support!

• Technical advice

• Process planning & construction

• Maintenance & service

• On-site support

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Program system LabVIEW

Industrial software

Wonderware

C-Sharp

Software solutions

Program system PLC / SPS

Full service provider

in measurement technology

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PC/LabView system

Complete system control, data capturing,

evaluation and visualization using LabView

by National Instruments

PLC systems

Complete system control, data capturing

and evaluation using PLC controls:

• Siemens S7

• Siemens LOGO

• Wago

Optional visualization solutions using

• Siemens WinCC

• Intouch by Wonderware

(Schneider Electric)