Erichsen #234-T Automatic Viscosity Cup Timer
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | #234-T |
| Pricing | Upon Request |
Overview
The Erichsen #234-T Automatic Viscosity Cup Timer is an engineered precision instrument designed for standardized efflux time measurement of low-viscosity Newtonian and near-Newtonian liquids in accordance with ISO 2431, ASTM D1200, DIN 53211, and BS 3900 Part 6. It operates on the fundamental principle that viscosity—expressed as efflux time (seconds)—is determined by measuring the duration required for a defined volume of liquid to drain completely through a calibrated orifice under gravity. This method is widely accepted for quality control in coatings, inks, resins, thin solvents, and other low-viscosity formulations where rapid, repeatable screening is essential. Unlike rotational or capillary viscometers, the #234-T does not compute absolute dynamic or kinematic viscosity; rather, it delivers highly reproducible efflux time data directly traceable to internationally recognized cup standards (e.g., Ford, Zahn, ISO Flow Cups). Its design prioritizes operational robustness, operator independence, and compliance-ready documentation.
Key Features
- Optical flow detection system with infrared sensor array—enables fully automatic start/stop triggering without manual intervention or contact with the fluid stream.
- High-resolution 4-digit LCD display with auto-ranging capability: displays from 0.01 s to 99.9 s (0.01 s resolution) and extends to 999.9 s (0.1 s resolution) for extended efflux applications.
- Universal compatibility with transparent and opaque liquids—no dependence on optical clarity due to non-contact beam interruption detection.
- Modular temperature management: removable thermostatic jacket accommodates standard viscosity cups (ISO, Ford, Zahn); integrated cup alignment adapter ensures consistent positioning across cup geometries and manufacturers.
- Single-button operation interface—minimizes training requirements and reduces procedural variability in routine QC environments.
- Adjustable, low-profile test platform with lateral mobility and fine vertical positioning—facilitates precise cup centering beneath the sensor and integration with laboratory benchtop workflows.
Sample Compatibility & Compliance
The #234-T is validated for use with low-viscosity liquids ranging approximately from 10–200 cSt (depending on cup size and orifice geometry), including but not limited to alkyd resins, acrylic lacquers, solvent-based inks, thin varnishes, and cleaning agents. It is explicitly unsuitable for non-Newtonian, thixotropic, or highly viscous materials such as pastes, gels, greases, or polymer melts. All measurements comply with ISO/IEC 17025 traceability requirements when used with certified reference cups and calibrated timers. The device supports GLP-compliant recordkeeping when paired with external data logging systems; while the unit itself does not provide electronic audit trails, its deterministic optical triggering and stable timing circuitry ensure measurement integrity suitable for FDA-regulated environments under 21 CFR Part 11 when integrated into validated workflows.
Software & Data Management
The #234-T operates as a standalone hardware timer with no embedded firmware or connectivity ports. All timing data is displayed locally and must be manually recorded or captured via external means (e.g., digital lab notebooks, LIMS interfaces, or optional RS-232/USB adapters offered separately by Erichsen distributors). For laboratories requiring automated data capture, the device is compatible with third-party serial communication protocols and can be integrated into custom SCADA or LabVIEW environments using standard TTL-level output signals (available upon request from authorized technical support). No proprietary software installation is required for basic operation.
Applications
- Batch release testing of industrial coatings and printing inks per ISO 2431 and ASTM D1200 specifications.
- In-process viscosity monitoring during solvent blending or dilution steps in paint manufacturing.
- Supplier qualification and incoming raw material verification for thin liquid intermediates.
- Routine QC in R&D labs evaluating formulation stability under controlled temperature conditions.
- Calibration verification of viscosity cups using reference standards traceable to NIST or PTB.
FAQ
What viscosity range is the #234-T rated for?
It is intended for efflux time measurement of liquids with nominal efflux times between 15 s and 150 s using standard ISO or Ford cups—corresponding to approximate kinematic viscosities of 15–180 mm²/s at 23 °C.
Can the #234-T be used with non-ISO viscosity cups?
Yes—the adjustable cup holder and alignment adapter accommodate Zahn, Ford, and DIN-standard cups; however, calibration certificates and reporting must reflect the specific cup type used.
Is temperature control built-in?
No—the unit includes a removable thermostatic jacket for connection to external circulators (e.g., Julabo or Huber units), but does not contain an integrated heating/cooling element.
Does the device meet FDA 21 CFR Part 11 requirements?
As a standalone analog-timing instrument without electronic data storage or user authentication, it is inherently Part 11–neutral; full compliance depends on procedural controls and integration architecture within the user’s validated system.
What is the power input specification?
Input: 230 VAC ±10%, 50 Hz; Output: 12 VDC, 200 mA via external switching power supply (included); total power consumption: ≤0.8 VA.
