TAITEC SP-12R Precision Circulating Water Bath

Overview

The TAITEC SP-12R is a compact, high-stability circulating water bath engineered for precise temperature control in analytical, biochemical, and materials testing laboratories. It operates on the principle of forced convection via an integrated jet-type circulation system, ensuring uniform thermal distribution throughout the bath volume without external pumps or tubing. Designed for applications requiring tight thermal regulation—such as enzyme kinetics studies, viscometry sample conditioning, dissolution testing, and calibration of temperature-sensitive sensors—the SP-12R delivers consistent performance across its full operating range of 0 °C to 100 °C. Its dual-mode thermal actuation (heating and optional refrigeration integration) supports both ambient-plus and sub-ambient operation when paired with compatible external cooling modules (e.g., immersion chillers or low-temperature bath accessories). The unit features digital PID temperature control with 0.1 °C setpoint resolution and real-time stability of ±0.1 °C under steady-state conditions—meeting typical requirements for ISO/IEC 17025-accredited labs performing temperature-dependent method validation.

Key Features

• Jet-flow internal circulation mechanism ensures homogeneous temperature distribution without dead zones or stratification.
• Digital LED display with dual-mode readout: simultaneous or toggle-view of setpoint and actual bath temperature.
• Six programmable temperature memories (five user-defined + one startup default), enabling rapid recall of frequently used protocols.
• Multi-layer safety architecture including float-type dry-run protection, over-temperature cutoff, low-level fluid detection, heater surface thermal shielding, and sensor fault diagnostics.
• Modular compatibility: supports integration with optional low-temperature cooling units for extended range operation below ambient; stainless-steel insulated bath and silicone oil media available for >70 °C applications.
• Compact footprint (130 × 164 × 315 mm) and lightweight design (~5 kg) facilitate benchtop deployment in space-constrained environments such as QC labs, academic teaching facilities, and R&D incubators.

Sample Compatibility & Compliance

The SP-12R accommodates standard laboratory vessels—including microcentrifuge tubes (with included floating rack), cuvettes, reaction vials, and small-volume sample holders—within its 1.7 L working volume. Its open-bath configuration allows direct immersion of probes, sensors, or test specimens. The unit complies with JIS Z 8703 (Japanese Industrial Standard for Laboratory Equipment Thermal Performance) and conforms to general electrical safety requirements per IEC 61010-1 for laboratory use. When operated within validated SOPs and coupled with traceable NIST-calibrated reference thermometers, it supports GLP and GMP-aligned workflows, including those governed by USP (Temperature Calibration) and ASTM E2251 (Standard Specification for Liquid-in-Glass Thermometers). Optional stainless-steel bath inserts and silicone oil media enable compliance with elevated-temperature protocols requiring chemical inertness and reduced evaporation.

Software & Data Management

While the SP-12R operates as a standalone analog/digital hybrid controller without native USB or Ethernet connectivity, its temperature setpoints and operational status are fully accessible via front-panel interface with audit-ready parameter logging capability. All safety events—including over-temperature alarms, low-fluid alerts, and sensor faults—are recorded in non-volatile memory with timestamped event flags. For laboratories requiring electronic records per FDA 21 CFR Part 11, the unit may be integrated into broader environmental monitoring systems via optional analog output (0–5 V or 4–20 mA) for external data acquisition and trending. Firmware updates are performed locally using proprietary TAITEC service tools; revision history and calibration logs must be maintained manually as part of instrument qualification documentation.

Applications

• Pre-conditioning of samples prior to rheological, spectroscopic, or chromatographic analysis.
• Stabilization of enzymatic reactions during kinetic assays (e.g., ELISA, PCR setup, ligand-binding studies).
• Thermal equilibration of reference standards for thermometer calibration and thermocouple verification.
• Controlled solubility testing in pharmaceutical development (e.g., intrinsic dissolution rate studies per USP ).
• Support of accelerated stability testing protocols where precise bath temperature maintenance is critical to shelf-life modeling.
• Use as a thermal platform for optical microscopy stages requiring vibration-damped, low-noise heating.

FAQ

What is the minimum and maximum operating temperature of the SP-12R?

The SP-12R operates from 0 °C to 100 °C. With external cooling accessories, sub-zero operation is possible; however, the base unit does not include active refrigeration.
Can the SP-12R maintain temperature stability during prolonged operation?

Yes—under stable ambient conditions and proper load management, the unit achieves ±0.1 °C stability at steady state, verified per TAITEC’s factory calibration protocol.
Is the SP-12R suitable for use with corrosive or organic solvents?

The standard acrylic bath is intended for aqueous solutions only. For organic solvents or elevated temperatures (>70 °C), a stainless-steel insulated bath and silicone oil medium must be specified.
Does the SP-12R support remote monitoring or computer control?

No native digital interface is provided; however, analog voltage/current output options are available for third-party DAQ integration.
What safety certifications does the SP-12R carry?

It meets IEC 61010-1 for electrical safety and is manufactured under TAITEC’s ISO 9001-certified quality system; CE marking applies to EU-compliant configurations.