Yokogawa pH and Redox Converter, PH450G
Images are representations only.

PH450G pH & Redox Converter

Brand: Yokogawa Electric Corporation

The PH450 pH analyzer provides the best accuracy in the industry, featuring an advanced temperature compensation functionality, preloaded calibration standards, stability checks, and online sensor and analyzer diagnostics to provide verifiable results.

This four-wire, multivariable analyzer combines pH with temperature and ORP (Redox) measurement, all of which can be utilized through the different output functions: two mA current outputs, four independent SPDT contact outputs, and HART. 

Dynamic sensor checking and wash cycle functions assure trouble free and accurate analysis with minimum maintenance.
Features
  • Capable of analyzing pH, ORP or rH and Temperature measurements at the same time with the same sensor
  • Full PID control possible for both acid and alkaline addition simultaneously
  • Dual High Impedance Capability, allowing for Differential pH/ORP measurements 
  • Enhanced diagnostics, process trending graphics and on-screen logbooks for data storage
  • Two mA-outputs and four SPDT relay contacts with display indicators
  • Hart® Communications
  • FM Class 1, Div.2, Group ABCD, T6 for Ta-20 to 55°C
  • IP66/NEMA4X 1/2 DIN enclosure for Field Mounting and Panel Mounting
  • Three sets of preloaded pH buffer standards (NIST, US and DIN) cover most commonly used pH calibration practices
  • Supports many temperature compensation elements and sensor types

Power

Power

Type

Type

Mounting

Mounting

Hood

Hood

Conduit Connection

Conduit Connection

Tag Plate

Tag Plate
  • view details
View Details
Part Number / SKU

    Specifications

    Brand

    Accuracy

    • ≤ 0.01 pH - pH Input
    • ≤ 0.3° C (0.54° F) [≤ 0.4° C (≤ 0.72° F) for Pt100] - Temperature
    • ≤ 1 mV - ORP Input
    • Step Response: < 4 seconds for 90 % (pH7 - pH4)

    Ambient Temperature Range

    • -20° to 55° C (-5° to 130° F)

    Approvals & Certifications

    • Safety: EN 61010-2-030
    • Safety: EN 61010-2-201

    Approvals & Certifications

    • CSA C22.2 No. 61010-1
    • EMC: EN 61326-1 Class A, Table 2, EN 61326-2-3, EN 61000-3-2 Class A, EN 61000-3-3
    • FM Non-Incendive Approval: FM3611 Class I, Div. 2, Groups A, B, C, D, T6 for Ta -20 to 55° C
    • IEC
    • KC
    • RCM: EN 61326-1 Class A
    • UL 61010-1

    Burn-Out

    • Downscale: 3.6 mA to Signal Failure According NAMUR NE43
    • Upscale: 21 mA to Signal Failure According NAMUR NE43

    Communication

    • HART

    Conduit Connection

    • 1/2" NPT Female - Conduit Adapter
    • G 1/2" Female - Conduit Adapter
    • M20 Female - Conduit Adapter

    Consumption

    • 10 W - Power Consumption (PH450 G-D)
    • 15 VA - Power Consumption (PH450 G-A)

    Control Functions Characteristics

    • PID Control

    Cover Material

    • Polycarbonate

    Display

    • Backlight: LED
    • LCD Display

    Electrical Rating

    • Maximum

    Enclosure Finish

    • Chemically Resistant Coating
    • Silver Gray

    Enclosure, Body Material

    • Cast Aluminum

    Environmental Protection

    • IP66
    • NEMA 3S
    • NEMA 4X

    Function

    • Automatic
    • Manual

    Humidity

    • 10 to 90 % RH at 40° C (100° F), Non-Condensing

    Input

    • 0 to 100 RH
    • -1,500 to 1,500 mV - ORP
    • -2 to 16 pH
    • PTC/NTC Thermistor

    Input Impedance

    • Dual High Input Impedance: ≥ 10¹² ohms

    Input Signal

    • 4-20 mA DC

    Load Resistance

    • 600 ohms

    Materials of Construction

    • Stainless Steel - Tag Plate

    Mounting

    • Panel Mounting
    • Pipe Mounting
    • Wall Mounting

    NACE & NIST

    • NIST

    Output

    • 4 SPDT Relays
    • 4-20 mA DC

    Output Function

    • Linear or Non-Linear Ouput

    Power Supply

    • 10.8 - 26.4 Vdc - Acceptable Range (PH450 G - D)
    • 100-240 Vac - Ratings (PH450 G-A)
    • 12-24 Vdc - Ratings (PH450 G-D)
    • 90-264 Vac, 50 Hz ± 5 %, 60 Hz ± 5 % - Acceptable Range (PH450 G-A)

    RTD Type

    • Pt100
    • Pt1000

    Storage Temperature

    • -30° to 70° C (-22° to 158° F)

    Switch Type

    • SPDT

    Temperature Range

    • -10° to 120° C (14° to 248° F) - NTC 8k55
    • -30° to 140° C (-22° to 284° F) - Pt1000, Pt100, 350 ohms (DKK), 5k1, 6k8, PTC10k, 3kBalco

    Tolerance

    • ± 0.02 mA of 4-20 mA - mA Output Tolerance

    Window Material

    • Polycarbonate

    Documentation

    Data Sheets

    Product Manuals

    Certificate

    MSDS/SDS

    Product Drawing

    Technical Information

    show more