Online Acid and Alkali Concentration Meter DC-850

Online Acid-Alkali Concentration Meter DC-850

The DC-850 series is our company's new generation of fully Chinese microcomputer-based high-end instruments, featuring full Chinese display, Chinese menu-style operation, full intelligence, multifunctionality, high measurement performance, and strong environmental adaptability. It can be widely used in industries such as thermal power and chemical engineering, suitable for checking the concentration of regeneration liquid in the process of producing high-purity water by ion exchange, or for preparing acid washing solutions for boilers and pipelines, and for continuous monitoring of acid and alkali concentration in liquids.

Online Acid-Alkali Concentration Meter DC-850Technical Specifications:
Display Method: Chinese LCD display, Chinese menu-style operation
Measurement Range: DC-850A: 0～10.00% HCL
DC-850B: 0～10.00% NaOH
DC-850C: 0～10.00% H2SO4
DC-850D: 0～20.00% NaCL
DC-850E: 0～15.00% HNO3
DC-850F: 0～10.00% Na2CO3 (other ranges available upon negotiation)
Resolution: 0.01%, 0.1℃
Electrode Constant: 1～55.0 cm⁻¹ set by software
Temperature Compensation Range: Automatic 0～99.9℃, Manual 0～99.9℃
Accuracy: ±2.0% (error after calibration at common points can be less than 0.05%), ±0.3℃
Current Isolated Output: 4～20 mA (load < 750 Ω)
Alarm Relay: AC220V, 3A, alarm signal isolated output
Communication Interface: Isolated RS485
Power Supply: AC220V±22V, 50Hz±1Hz
Protection Rating: IP65
Operating Conditions: Ambient temperature 0～60℃, relative humidity ≤90%
Power-off Storage: >10 years
Weight and Dimensions: 0.8kg, 146×146×108 mm
Cutout Dimensions: 138x138 mm
Secondary Meter Installation Method: Flush-mounted/Wall-mounted/Rack-mounted/Pipeline-mounted
Electrode Installation Method: Flow-through/Submersible/Flange-mounted/Pipeline-mounted

Online Acid-Alkali Concentration Meter DC-850Standard Configuration: One secondary meter, one measuring cell, one electrode
Ordering Guide: 1. Length of electrode cable; if not specified, 5m is provided.
2. Installation method of electrode and secondary meter.

DC-850 Main Features:
Chinese LCD display, Chinese menu-style, Chinese notepad.
Microcomputer-based: Uses high-performance CPU chip, high-precision AD conversion technology, and SMT technology,

completing multi-parameter measurement, temperature compensation, automatic range conversion, and instrument self-check, with high accuracy and good repeatability.
High Reliability: Single-board structure, touch keys, no switches, knobs, or potentiometers.
Automatic Measurement Frequency Conversion: Avoids electrode polarization, improves measurement accuracy.
Phase-Sensitive Detection Design: Eliminates the influence of wires on measurement.
Waterproof and Dustproof Design: Protection rating IP65, suitable for outdoor use.
Electromagnetic Compatibility (EMC/RFI) Design: Designed and manufactured according to European standards EN50081/50082.
Alarm Function: Alarm signal isolated output, upper and lower alarm limits can be set arbitrarily, alarm hysteresis cancellation.
Two Calibration Methods: Automatic calibration with 2.00%, 4.00%, 6.00%, 8.00% or manual input of electrode coefficient.
Network Function: Isolated current output and RS485 communication interface; upper and lower limits of current output corresponding to concentration values can be set arbitrarily.
History Curve: Continuously records data for one month, one point every five minutes.
Notepad Function: Records 200 pieces of information.
Manual Current Source: Facilitates testing of recording and detection devices.
Built-in Real-Time Clock: Provides time基准 for various functions.
Industrial Control Watchdog: Ensures the instrument does not crash.
Password Management: Parameter setting and maintenance are password protected.