Ca²⁺ · Smart Calcium Ion Sensor

M200 Smart Calcium Ion Sensor

PVC membrane ion selective electrode (ISE) directly measures calcium ion in water, 0.2–40000 ppm range, 0.001 ppm resolution, ±5%FS accuracy, automatic temperature compensation. IP68 full protection, A/B/C housing styles for submersion / flow-through installation, RS485 digital direct to monitor host, reagent-free, low maintenance, suitable for wastewater and industrial process water body online monitoring.

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Calcium Ion Sensor
40000 ppm
Max Range
0.001 ppm
Resolution
±5 %FS
Measurement Accuracy
IP68
Full protection · RS485
Features

Reagent-free Ion Selective Method, Calcium Ion Long-term Online

The PVC membrane ISE measures calcium ion directly without reagents or a peristaltic pump. Automatic temperature compensation and a wide range provide stable, low-maintenance, long-term monitoring.

Advanced Circuitry

High-impedance measurement circuit, high-precision acquisition of weak potential signals, anti-interference.

Easy Installation

A/B/C housing styles, submersion / flow-through multiple methods, standard 5m cable.

Industrial-grade Protection

IP68 full protection, PPS / ABS / POM+Stainless Steel housing selectable by scenario.

Fast Response

Ion selective electrode fast response, reagent-free, low maintenance.

Model Selection

Calcium Ion Sensor Model Overview

The series supports multiple installation methods and water types. Filter by installation method, then add a model to your selection list or contact our engineers for verification.

M200-ION-CA-A
RS485 Digital
Style A · Submersion (PPS)
Range0.2–40000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialPPS
HardnessCirculating WaterBoiler
M200-ION-CA-B
RS485 Digital
Style B · Flow-through (ABS)
Range0.2–40000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialABS
Tap WaterEffluent MonitoringCirculating Water
M200-ION-CA-C
RS485 Digital
Style C · Submersion (POM+Stainless Steel)
Range0.2–40000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialPOM+Stainless Steel
IndustrialInfluentProcess
Specifications

Complete Specifications

Series general specifications. Individual parameters vary by model (range, housing, output method), subject to selection confirmation.

Measured Parameter
Calcium Ion (Ca²⁺)
Measuring Range
0.2–40000 ppm
Measurement Principle
PVC Membrane ISE Method (ISE)
Suitable for pH Range
4–10 pH
Measurement Accuracy
±5%FS
Resolution
0.001 ppm
Repeatability/Linearity
±4%
Temp. Compensation
Automatic
Temp. Measurement range
0.0–50.0°C
Pressure Range
0–1 bar
Relative Humidity
<90%
Housing Material
PPS (Style A) / ABS (Style B) / POM+Stainless Steel (Style C)
Process Connection
G1 · G3/4 · G3/4 · NPT3/4 · M39×1.5
Cable Length
Standard 5m (customizable)
Protection Rating
IP68
Power Supply
DC9–30V (recommended DC12V)
Electrical Connection
RS485 (MODBUS-RTU) or 4-20mA Analog
Installation
Submersion (Style A) / Submersion (Style C) / Flow-through (Style B)
Warranty
Half a year
Applications

Suitable Water Types

Calcium ion directly reflects water hardness, and is a key indicator for circulating water scaling and softening process control. PVC membrane ion selective electrode reagent-free online monitoring, suitable for long-term unattended operation. Different water bodies categorized below, you can choose the corresponding housing style and housing.

Circulation & Thermal

4
Cooling Tower WaterBoiler WaterSoftened WaterScaling Control

Water Supply & Preparation

4
Drinking WaterTap WaterHardness MonitoringSecondary Supply

Municipal & Environmental

3
Wastewater TreatmentSurface WaterRiver Monitoring

Industrial Processes

3
ChemicalPharmaceuticalFood
Get a recommendation

Tell us your water type and range, we'll recommend a Calcium Ion model

Send us the on-site calcium ion range, water body pH and installation conditions, and our engineers will respond with a calcium ion selection recommendation including housing style, sensitive membrane, housing and installation. Calcium ion probe plug and play connects to 8-channel monitor host, can be linked with pH and other ion parameters.

Contact an engineer