Cole-Parmer 78190-00 Multi-Channel Micro-Peristaltic Pump
| Brand | Cole-Parmer |
|---|---|
| Origin | USA |
| Model | 78190-00 |
| Flow Rate Range | 0.1–400 mL/min |
| Speed | 340 rpm |
| Channel Configurations | 4 / 8 / 12 (selectable) |
| Repeatability | ±5% |
| Dimensions (L×W×H) | 14 × 18 × 12.2 cm |
| Power Supply | 100–240 V, 50/60 Hz |
| Standard Accessories | Foot Switch, Power Cord |
Overview
The Cole-Parmer 78190-00 Multi-Channel Micro-Peristaltic Pump is an engineered solution for precise, low-volume fluid handling in analytical, bioprocessing, and quality control laboratories. Based on peristaltic displacement principle—where rollers compress flexible tubing to generate positive displacement—the system delivers pulse-dampened flow through an 8-roller head design, minimizing flow pulsation and enhancing volumetric consistency across multiple parallel channels. Unlike gear or diaphragm pumps, this instrument avoids fluid contact with internal mechanical components, ensuring contamination-free operation and simplifying validation for regulated environments. Its modular architecture supports 4-, 8-, or 12-channel configurations (model variants 78190-00, 78190-02, and 78190-04), enabling scalable integration into automated liquid handling workflows, continuous sampling systems, or multi-stream reagent delivery platforms.
Key Features
- Eight-roller pump head geometry optimized for reduced flow pulsation and improved accuracy at micro-scale flow rates
- Bidirectional DC motor enabling forward/reverse operation—critical for priming, backflushing, and closed-loop rinsing protocols
- Programmable controller with up to 99 user-defined methods; each method supports variable parameters including volume, time, flow rate, and inter-step delay (up to 99 seconds)
- Wide dynamic flow range: 0.1–400 mL/min, selectable via interchangeable tubing IDs (0.51 mm to 2.54 mm inner diameter)
- ±5% volumetric repeatability under stable operating conditions—validated per ISO 5725-2 guidelines for precision assessment
- Compact footprint (14 × 18 × 12.2 cm) designed for benchtop integration without compromising service access or thermal dissipation
- Universal power input (100–240 V, 50/60 Hz) compliant with IEC 61000-3-2 harmonic emission standards
- Included foot switch enables hands-free start/stop control—essential for aseptic or glove-box applications
Sample Compatibility & Compliance
The 78190-00 accommodates standard Pharmed® BPT tubing (sold separately), a USP Class VI-certified elastomer resistant to ozone, UV, and common solvents—including alcohols, weak acids, and buffered saline solutions. Tubing selection directly governs operational range and chemical compatibility: 0.51 mm ID tubing supports ultra-low flows (4–200 µL/min) ideal for capillary electrophoresis or microfluidic interfacing; 2.54 mm ID tubing enables higher throughput (2–50 mL/min) suitable for buffer exchange or column equilibration. The pump meets CE marking requirements under the Low Voltage Directive (2014/35/EU) and Electromagnetic Compatibility Directive (2014/30/EU). While not intrinsically rated for hazardous locations, its non-sparking motor and isolated drive train support use in general laboratory zones per NFPA 45 and ANSI Z9.5 ventilation guidelines.
Software & Data Management
This standalone pump operates without proprietary software—relying instead on intuitive front-panel navigation and real-time LED feedback. All program parameters are retained in non-volatile memory during power cycling, supporting GLP-compliant traceability of method execution history. For integration into larger automation frameworks, the device provides TTL-compatible digital I/O (start/stop, direction, status output) and analog 0–10 V speed control input—enabling synchronization with PLCs, SCADA systems, or custom LabVIEW applications. Audit trail functionality is maintained manually via operator logbooks; electronic record generation requires external data acquisition systems aligned with FDA 21 CFR Part 11 requirements for electronic signatures and change control.
Applications
- Multi-stream reagent dosing in ELISA, PCR setup, and cell culture media preparation
- Continuous-flow calibration of online conductivity or pH sensors using certified reference standards
- Parallel perfusion in organ-on-chip and microphysiological systems requiring independent flow control per channel
- Automated sample dilution series generation for ICP-MS or HPLC calibration curves
- Cleaning-in-place (CIP) sequences for chromatography manifolds and filtration skids
- Controlled eluent delivery in gradient ion chromatography where low-pulse flow preserves separation resolution
FAQ
Is tubing included with the pump?
No—Pharmed BPT tubing is sold separately in four-pack configurations for each inner diameter (0.51 mm to 2.54 mm). Tubing selection must match intended flow range and chemical exposure profile.
Can the pump be integrated into a computer-controlled lab network?
Yes—via analog voltage input (0–10 V) for speed modulation and digital TTL signals for start/stop/direction control. No native USB or Ethernet interface is provided.
What maintenance is required to sustain ±5% repeatability?
Routine inspection of roller alignment and tubing compression depth is recommended every 500 hours of operation. Tubing replacement intervals depend on chemical compatibility and pressure load; typical lifespan ranges from 100–500 hours under continuous use.
Does the pump support regulatory compliance for pharmaceutical QC labs?
It supports foundational elements of GMP and GLP workflows—including method reproducibility, operator-accessible parameter logging, and material compatibility documentation—but full 21 CFR Part 11 compliance requires external validation and electronic record management infrastructure.
