York Instruments CPG2500 High-Precision Pressure Display Instrument

Overview

The York Instruments CPG2500 High-Precision Pressure Display Instrument is a metrologically traceable, multi-channel digital pressure indicator engineered for primary and secondary calibration laboratories, national metrology institutes (NMIs), and high-integrity industrial process validation environments. It operates on the principle of high-stability analog-to-digital conversion of conditioned sensor signals, with real-time compensation for thermal drift, nonlinearity, and hysteresis—enabling direct comparison against primary standards such as deadweight testers or laser-interferometric pressure standards. Unlike conventional panel meters, the CPG2500 integrates dual internal pressure transducers and a configurable external sensor input, allowing simultaneous monitoring and cross-comparison across three independent pressure domains. Its architecture supports both gauge and absolute pressure measurements, with factory-traceable calibration certificates issued per ISO/IEC 17025 requirements. Designed for use in controlled laboratory settings and certified cleanrooms, the unit complies with EN 61326-1 (EMC for test and measurement equipment) and meets mechanical robustness criteria defined in IEC 60068-2 for vibration and shock resistance.

Key Features

• Triple-sensor architecture: Two built-in high-stability piezoresistive or quartz-based pressure transducers plus one isolated external sensor port—enabling concurrent measurement, redundancy verification, and inter-channel differential analysis.
• Ultra-high accuracy options: Configurable to 0.008 % of reading (IS-33 or IS-50 definition, k=2), validated across full span and sub-span ranges; uncertainty budget explicitly accounts for long-term stability (≤15 ppm/year typical), temperature coefficient (≤0.0005 %/°C), and zero-shift compensation efficacy.
• Intelliscale™ adaptive scaling algorithm: Dynamically adjusts resolution and linearity correction based on actual operating pressure, maximizing effective digits across low- and high-pressure regimes without manual range switching.
• Modular sensor interface: Supports hot-swappable, NIST-traceable pressure modules (e.g., CT25.021 series) with embedded EEPROM calibration data; automatic recognition and parameter loading upon insertion.
• Front-panel zero suppression and span adjustment with audit trail logging—compliant with FDA 21 CFR Part 11 for electronic records and signatures when used with optional software configuration.

Sample Compatibility & Compliance

The CPG2500 accepts a broad spectrum of pressure media—including dry gases (N₂, Ar, He), inert liquids (silicone oil, mercury-free hydraulic fluids), and vacuum environments down to 10⁻³ mbar (when equipped with absolute sensors). It is compatible with all York Instruments-certified pressure modules rated for media compatibility per ASTM E2877-22 (guidance for pressure calibration systems) and ISO 5725-2 (accuracy and precision of measurement methods). All factory calibrations are performed under GLP-compliant conditions and documented with full uncertainty budgets per GUM (JCGM 100:2008). The instrument satisfies functional safety prerequisites outlined in IEC 61508 SIL 2 for use in safety-related process control loops when integrated with certified isolation barriers.

Software & Data Management

The CPG2500 interfaces via RS-232, USB-CDC, and optional Ethernet (TCP/IP) to York’s CalSoft Pro v4.x platform—a Windows-based application supporting automated calibration sequence execution, deviation reporting, and certificate generation per ISO/IEC 17025 Annex A3. Raw time-series data is exportable in CSV, XML, and HDF5 formats. Audit trail functionality records all user-initiated configuration changes, zero adjustments, and calibration events with timestamps, operator ID, and reason-for-change fields—fully compliant with ALCOA+ data integrity principles. Optional firmware upgrade path enables future integration with LIMS via OPC UA (IEC 62541) and supports digital signature workflows aligned with EU Annex 11 and USP .

Applications

• Primary calibration of pressure transmitters, gauges, and digital manometers in accredited metrology labs.
• In-process verification of high-pressure hydraulic systems in aerospace component testing (e.g., landing gear actuation, fuel system validation).
• Reference-grade monitoring during creep and burst testing of composite pressure vessels per ASME BPVC Section VIII, Div. 3.
• Traceable pressure referencing in pharmaceutical water-for-injection (WFI) distribution loop validation (USP , EU GMP Annex 15).
• Cross-checking of deadweight tester outputs during periodic verification cycles—reducing downtime through parallel operation capability.

FAQ

What does “IS-33” accuracy mean, and how is it different from IS-50?
IS-33 denotes an accuracy specification where uncertainty is expressed as 0.008 % of reading above 33 % of full scale, and as 0.008 % of span below that threshold. IS-50 applies the same tolerance but shifts the breakpoint to 50 % of full scale—offering tighter relative uncertainty at mid-range pressures.
Can the CPG2500 be used with third-party pressure sensors?
Only York Instruments–certified, digitally encoded modules (e.g., CT25.021 series) are supported due to hardware-level encryption of calibration coefficients and thermal compensation parameters.
Is the unit suitable for hazardous area installations?
No—the CPG2500 is rated for general-purpose laboratory and control room use (IP20 enclosure); intrinsic safety requires external barrier integration and system-level certification.
How often does the unit require recalibration?
York Instruments recommends annual calibration against a higher-tier standard; however, stability data supports extended intervals up to 24 months in stable thermal environments when combined with quarterly in-house zero checks.
Does the device support absolute pressure simulation with zero-point drift compensation?
Yes—when configured with a factory-calibrated absolute pressure module, the CPG2500 performs active zero-point tracking and thermal zero-shift compensation, minimizing drift-induced errors over extended measurement sessions.