Test benches, measurement technology and accredited flow calibration according to DIN EN ISO/IEC 17025
EP Ehrler Prüftechnik Engineering GmbH
GermanyNew on Amplifa
About EP Ehrler Prüftechnik
EP Ehrler Prüftechnik Engineering GmbH is a full-line provider of high-precision flow measurement technology. The company develops and manufactures custom test benches, including heat pump test benches (HPT) for power ranges from 1 to 250 kW, blower and fan test benches (BTB), gas meter test benches (GMC) for meter sizes G1 to G100, as well as the calibration systems SonicMasterFlow (SMF) and LaminarMasterFlow (LMF). In addition to test bench construction, the company offers engineering, custom software and IIoT solutions, project management, accredited flow calibration according to DIN EN ISO/IEC 17025, as well as service, maintenance contracts and flow training. Founded in 2006, the calibration laboratory serves industries such as automotive, HVAC-R, aerospace, pharma & medical, fluid and valve technology, and hydrogen and fuel cell technology. As of July 1, 2026, EP Ehrler has become part of BDG Testing and Automation GmbH and thus of the Bürkert Group.
- Site
- Germany
- Processes
- Test bench construction (flow/heat pump/fan/gas meter test benches), Flow calibration (accredited according to DIN EN ISO/IEC 17025), Engineering, Software & IIoT, Service & Maintenance (flow training, service/maintenance contracts), Test Benches & Measurement Technology, Engineering, Software & IIoT, Project Management
- Materials
- SonicMasterFlow (SMF), LaminarMasterFlow (LMF), Heat Pump Test Benches (HPT), Blower and Fan Test Benches (BTB), Gas Meter Test Benches (GMC)
- Certificates
- DIN EN ISO/IEC 17025
- Industries
- Automotive, HVAC-R, Calibration Laboratories, Aerospace, Pharma & Medical, Fluid & Valve Technology
- 01
Engineering & Project Management
- 02
Test Bench Construction
- 03
Software & IIoT
- 04
Calibration (ISO/IEC 17025)
- 05
Service & Maintenance
- 06
Flow Training
Systems & Measurement Technology
SonicMasterFlow (SMF)
Calibration system for flow measurement with measuring ranges e.g. 0.2–10 l/min and measurement accuracy up to 0.15 % of reading.
LaminarMasterFlow (LMF)
Calibration system based on laminar flow for flow calibrations.
Heat Pump Test Benches (HPT)
Test benches for air-to-water, air-to-air, water-to-water and brine-to-water in the power range 1–250 kW, including development, end-of-line, endurance and component test benches.
Blower and Fan Test Benches (BTB)
Chamber test benches with standard measurement accuracy of ±1 % volume flow, configurable to project requirements.
Gas Meter Test Benches (GMC)
Test benches for gas meter sizes G1–G100 with 1–24 test stations and measurement uncertainty from 0.2 % of reading.
Location
Germany
DEDevelopment, manufacturing, accredited calibration laboratory, service
- SonicMasterFlow (SMF)
- LaminarMasterFlow (LMF)
- Heat Pump Test Benches (HPT)
- Blower and Fan Test Benches (BTB)
- Gas Meter Test Benches (GMC)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Test bench construction (flow/heat pump/fan/gas meter test benches)Testing | – | – | – | – | – |
| Flow calibration (accredited according to DIN EN ISO/IEC 17025)Testing | – | – | – | – | – |
| Engineering, Software & IIoTEngineering | – | – | – | – | – |
| Service & Maintenance (flow training, service/maintenance contracts)Engineering | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| SonicMasterFlow (SMF) calibration system | EP Ehrler Prüftechnik Engineering SMF® | – | Measuring ranges e.g. 0.2…2 l/min // 0.012…0.12 m³/h // 0.014…0.14 kg/h; 0.5…5 l/min; 1…10 l/min; | – | – |
| Heat pump test benches (HPT) | EP Ehrler Prüftechnik Engineering HPT | – | Power range 1-20 kW, 1-30 kW, up to 100 kW, up to 250 kW; air-to-water, air-to-air, water-to-water | – | – |
| Blower and fan test benches | EP Ehrler Prüftechnik Engineering BTB | – | Chamber pressure min/max (bar), volume flow min/max (m³/h) project-specific; standard measurement | – | – |
| Gas meter test benches | EP Ehrler Prüftechnik Engineering GMC | – | Gas meter sizes G1–G100, 1–24 test stations, measurement uncertainty from 0.2 % of reading | – | – |
| LaminarMasterFlow (LMF) | EP Ehrler Prüftechnik Engineering LMF | – | – | – | – |
Additional services
Quality & Accreditation
The calibration laboratory is accredited according to DIN EN ISO/IEC 17025 and performs flow calibrations with measurement accuracies up to 0.15 % of reading. Test benches are designed on a project-specific basis with defined measurement uncertainties (e.g. ±1 % standard for the BTB).
| Evidence | Germany |
|---|---|
| DIN EN ISO/IEC 17025 |
History
- 2006
Foundation of the calibration laboratory (derived from '20 years of calibration laboratory' in 2026)
- 2026
As of July 1, 2026, EP Ehrler becomes part of BDG Testing and Automation GmbH and thus of the Bürkert Group.