DTW-MU High Temperature Smart Calibration Salt Bath (Electrical measurement Version)

    The DTW high temperature smart calibration salt bath is a newly developed product designed to meet the calibration, validation, and verification requirements of temperature sensors. Structurally identical to standard laboratory oil baths, it features an independent heating system, stirring system, and a high-precision temperature control system (accuracy up to 0.1 grade). This bath provides a stable and precise heat source with a non-pressurized, non-toxic, and non-corrosive bath liquid. The bath's insertion port diameter can be customized as needed, making it ideal for high-precision testing of thermocouples and resistance thermometers.

Product characteristics

Full-Category Sensor Compatibility
Standard Input: Independent channel;supports 1st/2nd grade SPRTs (Pt25/Pt100), smart sensors (RTD/SMP), and S/R/B/T TCs. Temp control and reference measurement run independently.
DUT Coverage: RTDs (Pt/Cu), TCs (S/R/B/K/N/E/J/T), Transmitters(Voltage, current), Temp Switches, Oil/Winding Controllers, Pressure/Dual-metal Thermometers.

Lifecycle Mgmt
Full CRUD functions. Auto formula matching for SPRT/RTC. Plug-and-play with auto-import & highlighting.

Integrated Core Hardware
High-Precision Electrical Measurement: 6½/7½ digit (optional) for Ω, DCV, DCI. Resolution down to 0.0000001℃.
Deep Integration: Hardware + algorithm fusion (not simple stacking) eliminates multi-device errors.
4-Wire RTD Reversal: Separates excitation & high-impedance detection to eliminate lead/contact resistance.
Patented CJC: Independent high-precision cold junction sensor with multi-point monitoring & smart compensation.
Basic Capabilities: Gain/zero calibration, filtering, one-click zeroing, customizable standard criteria.

Fully Automated Workflow
Visual Task Config: One-click multi-point self-correction. Parallel DUTs (up to 8). Switch testing (up to 6) with custom ramp rates. Auto tolerance matching based on accuracy class.
Real-time Monitoring: Live data, progress, countdown, and 10-min fluctuation graphs. Auto-highlight for out-of-tolerance.
Programmatic Data Processing: Built-in JJG algorithms (229/141/351/630). Auto-calculates errors, judges compliance, and exports traceable raw data.

Intelligent Control & Acquisition
Programmable Ramp: Multi-point programming with auto rate control.
Adaptive PID: Auto-tuning based on load/media for optimal control.
Procedure-level Stability: Triggers data acquisition only when strictly meeting regulation criteria.
Multi-Channel Sync: Auto scans all channels, syncs bath/DUT data, and averages forward/reverse readings.

Data Management & Security
Massive Storage: 8GB capacity for 100,000+ records; multi-condition search.
Backup & Recovery: Custom auto-backup cycles; full or single-record recovery.
Security & Continuity: Tiered access control, anti-tamper logs, and auto-resume after power outage.
Remote Diagnostics: Full operation logs exportable for remote troubleshooting.

HMI & Expansion
Display: 5/7-inch HD touchscreen with intuitive GUI.
Connectivity: RS232/RS485, WiFi, LAN, USB for data export.
Sustainable Upgrade: USB firmware updates for ongoing compliance and feature upgrades.

Electronic Measurement Specification

Temperature Specification