HengaoDe HAD-NTS-4810C/II Smart Universal Vacuum Gauge Controller with Touchscreen Interface and Auto-Regulated Emission Current

Overview

The HengaoDe HAD-NTS-4810C/II Smart Universal Vacuum Gauge Controller is an engineered solution for precise, real-time vacuum monitoring and control in laboratory, pilot-scale, and industrial vacuum systems. It functions as a multi-gauge interface unit—supporting both thermocouple (TC) and cold-cathode ionization/composite gauges—operating on fundamental physical principles: thermal conductivity measurement for low-to-mid vacuum (0.1–5×10³ Pa), and electron emission–induced ion current detection for high vacuum (1×10⁻⁴–1×10⁵ Pa). Unlike legacy analog controllers, the HAD-NTS-4810C/II integrates digital signal conditioning, adaptive current regulation, and intelligent gauge auto-identification to eliminate manual configuration errors and reduce calibration drift. Its architecture complies with IEC 61000-4 electromagnetic immunity standards and supports stable operation under variable load conditions typical of diffusion pump, turbomolecular pump, and dry scroll vacuum systems.

Key Features

• Universal gauge compatibility with automatic detection of thermocouple (ZJ-51, ZJ-54D, DV-4/5/6) and ionization/composite (ZJ-10C, VG0-series) sensors—no manual jumper or DIP-switch setup required.
• Touchscreen-driven emission current adjustment with electronic feedback loop for thermocouple gauges; fully auto-adaptive current control for DV and VG0-series gauges ensures optimal filament life and signal stability.
• High-fidelity 5-inch industrial TFT display with anti-glare coating and glove-compatible touch response—designed for cleanroom, glovebox, and factory-floor environments.
• Dual-mode operation: continuous real-time monitoring or programmable timed acquisition (intervals configurable from 1 s to 24 h), supporting GLP-compliant data logging protocols.
• Integrated diagnostic engine performs live gauge health assessment—including filament continuity, grid short detection, and signal-to-noise ratio analysis—flagging degraded or faulty sensors before measurement failure occurs.
• Multi-unit display engine supporting Pa, Torr, and mTorr with seamless on-screen conversion—critical for cross-laboratory reporting and ISO/ASTM method alignment.

Sample Compatibility & Compliance

The HAD-NTS-4810C/II interfaces exclusively with commercially standardized vacuum transducers compliant with DIN 28403 and ISO 3567 mechanical mounting dimensions and electrical pinouts. It accepts all common thermocouple and cold-cathode gauges used in semiconductor processing, thin-film deposition, vacuum metallurgy, and analytical instrumentation (e.g., mass spectrometers, electron microscopes). While not certified to UL 61010-1 or ATEX for hazardous locations, its design adheres to Class II insulation requirements and includes overvoltage protection (±15 V transient suppression) on all sensor inputs. For regulated environments, the device supports audit-ready operation when paired with external time-stamped logging software compliant with FDA 21 CFR Part 11 (electronic records and signatures) via optional RS485 output module.

Software & Data Management

The controller operates autonomously without host PC dependency, but offers optional USB-C and RS485 interfaces for integration into SCADA or LIMS platforms. Internal firmware supports CSV export of timestamped pressure logs directly to removable microSD card (not included). All logged data include embedded metadata: gauge ID, measurement mode, unit selection, ambient temperature (via internal sensor), and battery voltage—enabling traceability per ISO/IEC 17025 clause 7.7. The embedded GUI allows full parameter configuration—including alarm thresholds (high/low pressure limits), backlight timeout, and auto-shutdown delay—without external software. Firmware updates are performed via signed binary upload through the touchscreen interface, ensuring version control integrity.

Applications

This controller serves critical vacuum metrology roles across multiple sectors: in R&D labs validating vacuum chamber leak rates per ASTM E493; in QC labs monitoring vacuum integrity during lyophilizer cycle validation (USP ); in coating facilities maintaining process pressure windows for PVD/CVD reactors; and in university physics departments calibrating vacuum systems for surface science experiments. Its portability and battery endurance make it suitable for field verification of vacuum integrity in HVAC chillers, transformer oil degassing units, and vacuum-insulated panels (VIPs). When deployed with ZJ-10C or VG0-series gauges, it meets minimum performance criteria for residual gas analysis pre-pumping sequences in ultra-high vacuum (UHV) systems down to 1×10⁻⁴ Pa.

FAQ

Does the HAD-NTS-4810C/II require external calibration after installation?

No—each gauge retains its individual calibration coefficients; the controller applies stored correction factors automatically upon gauge identification. However, periodic system-level verification using a NIST-traceable reference standard (e.g., MKS 925 Baratron) is recommended every 12 months per ISO/IEC 17025.

Can the device operate while charging?

Yes—DC 12.6 V input enables uninterrupted operation during battery recharge, with automatic switchover between battery and adapter power sources.

Is firmware upgrade capability available in the base model?

Yes—firmware updates are delivered as encrypted .bin files via USB-C or microSD and installed through the Settings > System Update menu.

What is the maximum cable length supported for remote gauge connection?

For thermocouple gauges: up to 30 m using shielded twisted-pair (STP) cable with 100 Ω characteristic impedance. For ionization gauges: ≤15 m recommended to maintain signal integrity and minimize noise coupling.

Does the unit support Modbus RTU communication protocol?

Not natively—but optional RS485 expansion module (HAD-RS485-EXT) enables Modbus RTU slave functionality with register mapping documentation provided in the technical manual.