Endress+Hauser CPM223-PR0005 | Liquisys M pH/ORP Transmitter, 2x 4-20mA, 24V DC
Endress+Hauser CPM223-PR0005 panel-mount pH/ORP transmitter. 2 analog outputs (4-20mA), 2 relays, 24V DC supply, 96x96mm cutout, for CPS/CPS series analog sensors.
Product Overview
The Endress+Hauser CPM223-PR0005 is a panel-mounted pH and ORP transmitter from the Liquisys M CPM223 series. It accepts inputs from analog pH/ORP sensors (e.g., CPS11D, CPS41 with matching head transmitter or direct analog electrode) and provides two 4-20mA outputs, two relay contacts, and a clear LCD display. Powered by 24V DC, it is widely used for monitoring and control in water treatment, chemical dosing, and wastewater neutralization.
Technical Specifications (Electrical & Functional)
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Parameter
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Specification
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Model / Order Code
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CPM223-PR0005
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Product Family
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Liquisys M CPM223
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Input Type
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1 × pH or ORP (Analog Electrode / Sensor with Transmitter Head)
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Measured Variables
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pH, mV (ORP), Temperature (via Pt100/Pt1000)
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Analog Outputs
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2 × 4…20 mA, galvanically isolated, freely assignable
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Relay Outputs
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2 × SPDT Relays (Alarm / Control / Limit)
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Power Supply
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24 V DC (20.4 … 28.8 V DC, typ. 24V)
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Display
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LCD, 5-digit + bar graph, backlit
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Technical Specifications (Mechanical & Environmental)
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Parameter
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Specification
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Mounting Type
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Panel Mount (Front Flush)
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Panel Cutout
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92 × 92 mm (DIN 43700)
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Front Dimension (H×W)
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96 × 96 mm
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Depth Behind Panel
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~146 mm
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Protection Rating
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IP65 (Front), IP20 (Rear)
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Operating Temperature
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-10 … +55 °C
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Humidity
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≤ 95% RH (non-condensing)
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Approvals
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CE, CSA General Purpose
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Key Features
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Dual Relay Control: Two SPDT relays allow independent high/low alarm or PID control functions (e.g., dosing pump on/off based on pH setpoint).
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Temperature Compensation: Automatic Pt100/Pt1000 input for temperature-compensated pH readings; also supports manual or fixed temp. compensation.
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Calibration Wizard: Step-by-step on-screen guide for 1-point (zero) and 2-point (slope) pH calibration or ORP offset calibration.
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Flexible Output Mapping: Both 4-20mA outputs can be assigned to pH/mV, temperature, or calculated values (e.g., deviation).
Applications
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Wastewater Neutralization: pH monitoring and dosing control in industrial effluent treatment.
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Chemical Process: ORP monitoring for oxidation-reduction reactions (e.g., chlorine/ozone disinfection control).
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Drinking Water: Post-treatment pH adjustment verification.
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Pool & Spa: pH and redox potential (ORP) monitoring in large aquatic facilities.
Note: For Memosens digital pH/ORP sensors (CPF81D, CPS11D with Memosens), the compatible transmitter is CM442 or CM42 series. CPM223 is intended for conventional analog sensors or sensors with a separate head transmitter.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
