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Description
The Waters 2545 Binary Gradient Module (BGM) is a high‑pressure, binary gradient solvent delivery system designed as the primary pump for the Waters AutoPurification™ System. Engineered for both analytical‑ and preparative‑scale liquid chromatography, the 2545 BGM delivers exceptionally smooth, pulse‑free flow with precise gradient accuracy across a wide flow‑rate range. With flow rates up to 150 mL/min and operating pressures up to 6,000 psi, the 2545 Binary Gradient Module is well‑suited for compound isolation, purification, and method‑driven LC workflows. Integrated solvent selection valves, automatic diagnostics, and software control via MassLynx™ with FractionLynx™ make it a trusted solution for research, development, and purification laboratories.
This refurbished Waters 2545 Binary Gradient Pump has been fully tested and verified to be in proper working condition by Alliant Scientific.
System Includes:
- Waters 2545 Binary Gradient Module (186025450)
- Cables and connectors
- 30 Day Warranty – non-consumable parts and labor covered only.
Technical Specifications
Solvent Delivery
- Flow Rate Range: 0.50 to 150.00 mL/min
- Flow Rate Increment: 0.01 mL/min
- Delay Volume: 350 µL maximum
- Maximum Operating Pressure:
- 6,000 psi up to 100 mL/min
- Pressure roll‑off to 5,000 psi at 150 mL/min
Gradient Performance
- Flow Accuracy: ±1.0% of required flow or 10 µL/min (whichever is greater)
- Composition Accuracy: ±1.0% absolute (full scale, 5–95%)
- Composition Precision:
- Retention time variation <0.3% RSD or 0.1 min SD
- Gradient Curves:
- 11 total: linear, step (2), concave (4), convex (4)
Solvent Management
- Number of Solvents: Up to four (A1 or A2, B1 or B2)
- Priming: Self‑priming from solvent container with dry lines
- Pump Seal Wash: Integral, active, programmable
Wetted Materials
- 316 stainless steel
- UHMWPE
- Sapphire and Ruby
- Tefzel® (ETFE)
- Teflon® (FEP, PTFE, PFA)
- Nitronic 60
- Valcon H
- Chemraz
- PEEK
Control & Communication
- Software Control: MassLynx™ with FractionLynx™
- Ethernet: RJ‑45 connector
- I/O:
- Four contact‑closure outputs
- Start/Stop and auxiliary inputs
- Chart outputs (2 × 0–2 V)
Physical & Environmental
- Dimensions (W × H × D):
- 28.2 × 42.7 × 63.5 cm (11.1 × 16.8 × 25.0 in.)
- Weight: 57.0 kg (125 lb)
- Operating Temperature: 4 to 40 °C
- Operating Humidity: 20–80%, non‑condensing
- Acoustic Noise: <60 dBA at idle
Electrical
- Line Voltage: 100–240 Vac ±10%
- Frequency: 50/60 Hz
- Current: 6.5 A
- Power Consumption: 650 W
- Fuse: 10 A, IEC slow‑blow
Typical Applications
- LC‑based compound purification
- Preparative and semi‑preparative chromatography
- Method development and scale‑up
- Research and synthetic laboratories
- High‑throughput purification workflows
Additional information
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