TimePower TP110 Online pH Analyzer
| Brand | TimePower |
|---|---|
| Model | TP110 |
| Type | Online (Process) pH Meter |
| Form Factor | Panel-Mount / Wall-Mountable Transmitter |
| Measurement Parameters | pH and Temperature |
| pH Range | 0.00–14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.02 pH |
| Repeatability | ≤1% |
| Input Impedance | >1×10¹² Ω |
| Temperature Sensor | Pt1000 |
| Temp. Measurement Range | 0.0–99.9 °C |
| Automatic Temperature Compensation (ATC) Range | 0.1–60.0 °C |
| Sample Temp. Operating Range | 5–60 °C |
| Ambient Temp. Operating Range | 5–45 °C |
| Humidity Limit | ≤90% RH (non-condensing) |
| Storage Temp. | −25–+55 °C |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz |
| Power Consumption | <5 W |
| Output Signals | 0–10 mA / 0–20 mA / 4–20 mA (selectable, galvanically isolated) |
| Relay Outputs | 2 SPST (AC 220 V / 3 A or DC 30 V / 3 A), user-configurable |
| Enclosure Rating | IP65 |
| Display | 128×64 dot-matrix LCD, Chinese interface |
| Data Storage | Cyclic memory with >10-year retention after power loss |
| Mounting Options | Panel cutout (138×138 mm), wall-mount, or rack-mount |
| Electrode Interface | Compatible with flow-through, immersion, flanged, and pipe-threaded pH electrodes |
| Standard Electrodes | TP110-001 (ultrapure water), TP110-002 (general-purpose), TP110-003 (wastewater), TP110-004 (high-temp), TP110-005 (flat-surface), TP110-006 (wastewater reference) |
| Calibration | Two-point calibration using standard buffer solutions (e.g., pH 4.00, 6.86, 9.18) |
| Dimensions (H×W×D) | 155×142×125 mm |
| Weight | 1.6 kg |
Overview
The TimePower TP110 Online pH Analyzer is a microprocessor-based, industrial-grade process instrument engineered for continuous, real-time monitoring of hydrogen ion activity in aqueous solutions across water treatment, chemical manufacturing, pharmaceutical production, and environmental monitoring applications. It operates on the fundamental principle of potentiometric measurement: the potential difference between a glass pH sensing electrode and a stable reference electrode—typically Ag/AgCl—is converted into a logarithmic pH value per the Nernst equation (−59.16 mV/pH unit at 25 °C). Integrated Pt1000 temperature compensation ensures accurate pH readings across dynamic thermal conditions, while high-input-impedance circuitry (>1×10¹² Ω) minimizes loading effects and preserves signal integrity—critical for low-conductivity samples such as deionized water or boiler feedwater. Designed for 24/7 unattended operation in demanding plant environments, the TP110 features robust electromagnetic compatibility (EMC), wide operating temperature/humidity tolerance, and fail-safe relay outputs compliant with IEC 61000-4 immunity standards.
Key Features
- True online architecture with dual-parameter (pH + temperature) simultaneous acquisition and display
- 24-bit analog-to-digital conversion enabling high-resolution signal digitization and long-term measurement stability
- Intuitive Chinese-language menu system with contextual prompts—no external PC required for configuration or calibration
- Galvanically isolated current output (4–20 mA default, configurable to 0–10 or 0–20 mA) for seamless integration into DCS, PLC, or SCADA systems
- Dual programmable alarm relays supporting fail-safe shutdown, pump control, or dosing activation based on user-defined pH thresholds
- Cyclic data logging with non-volatile memory retaining >10 years of timestamped pH/temperature records—even during extended power outages
- IP65-rated front panel enclosure suitable for humid, dusty, or splash-prone installation locations
- Flexible mechanical mounting options: panel cutout (138 mm × 138 mm), wall bracket, or DIN rail adapter kit (optional)
- Modular electrode interface supporting industry-standard connection types: flow cell, submersion, flange-mounted, or inline pipe thread (NPT/G)
Sample Compatibility & Compliance
The TP110 accommodates a broad spectrum of aqueous media through its interchangeable electrode portfolio—including low-ionic-strength ultrapure water (TP110-001), municipal wastewater (TP110-003), high-temperature process streams up to 130 °C (TP110-004), and surface-sensitive applications requiring flat-tip geometry (TP110-005). All electrodes utilize double-junction reference systems with KCl gel electrolyte to mitigate contamination and junction clogging. The analyzer meets CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). Its design supports adherence to ISO 5725 (accuracy/trueness), ASTM D1293 (standard test method for pH of water), and USP (pH measurement in pharmaceutical water systems). While not intrinsically safe, optional hazardous-area enclosures (ATEX/IECEx) are available upon request for Zone 2 installations.
Software & Data Management
No proprietary software is required for routine operation; all setup, calibration, and diagnostics are performed locally via the front-panel keypad and LCD. However, optional RS485 Modbus RTU communication enables remote interrogation and parameter adjustment via supervisory HMI or historian platforms. Calibration history—including date/time stamps, buffer IDs used, slope (%), and offset (mV)—is stored in audit-trail format, satisfying basic GLP documentation needs. Data export is supported through serial printout (via optional thermal printer interface) or manual screen capture. Firmware updates are delivered via USB flash drive—no network connectivity required—ensuring air-gapped security in regulated facilities subject to FDA 21 CFR Part 11 controls (electronic records/signatures).
Applications
- Continuous pH monitoring in reverse osmosis (RO) permeate and reject streams
- Neutralization control in chemical dosing skids for effluent treatment plants
- In-line quality assurance during purified water (PW) and water-for-injection (WFI) generation
- pH stabilization in bioreactor nutrient feeds and fermentation broth management
- Corrosion inhibition monitoring in cooling tower and boiler water circuits
- Regulatory compliance tracking for EPA NPDES discharge permits and ISO 14001 environmental management systems
FAQ
What calibration buffers are recommended for routine use?
Standard NIST-traceable buffers at pH 4.00, 6.86, and 9.18 are supplied with each unit; two-point calibration (e.g., 4.00/7.00 or 7.00/10.00) is sufficient for most process applications.
Can the TP110 be used in high-conductivity brine solutions?
Yes—when paired with the TP110-003 wastewater electrode (double-junction, high-flow-rate liquid junction), it maintains accuracy in conductivity ranges up to 200 mS/cm.
Is temperature compensation automatic or manual?
Automatic temperature compensation (ATC) is enabled by default using the integrated Pt1000 sensor; manual offset entry is available if external temperature input is preferred.
How often should the pH electrode be cleaned or replaced?
Cleaning frequency depends on fouling potential—weekly maintenance is typical for clean water; daily cleaning may be needed in sludge or scaling-prone streams. Electrode service life averages 12–24 months under proper storage and handling.
Does the unit support password-protected configuration changes?
Yes—three-tier access control (Operator / Technician / Administrator) prevents unauthorized modification of critical parameters such as calibration constants, alarm setpoints, and output scaling.
