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| Brand | Forerunner |
|---|---|
| Origin | Beijing, China |
| Model | ZDJ-100 |
| Instrument Type | General-purpose Automatic Potentiometric Titrator |
| Application Scope | General-purpose |
| Measurement Range | (-2000.0 to +2000.0) mV, (0.00 to 14.00) pH |
| Meter Accuracy | ±0.2% of full scale |
| Meter Resolution | 1 mV (mV mode), 0.01 pH (pH mode) |
| Titration Accuracy | (±0.3 mV ±1 digit) over 3 h |
| Input Impedance | ≥10¹⁵ Ω |
| Temperature Range (with optional thermostat) | -15 °C to +85 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy (optional) | ±0.5 °C |
| Minimum Dispense Volume | 0.02 mL |
| Titration Control Precision | ±0.01 mL |
| Measurement Modes | Dynamic titration, Equivalence-point titration, Fixed-volume titration, Direct pH measurement |
| Interface Options | RS232C, Printer port (for optional thermal mini-printer) |
| Data Output | Real-time titration curve plotting, PC connectivity for process monitoring and post-analysis |
| Brand | Forerunner |
|---|---|
| Origin | Beijing, China |
| Model | ZDJ-400 |
| Instrument Type | General-purpose Potentiometric Titrator |
| Application Scope | Universal |
| Measuring Range | mV: −2000 to +2000 mV |
| pH | 0.00 to 20.00 |
| Temperature | 0.0 to 125.0 °C |
| Resolution | pH: 0.01 |
| mV | 0.1 mV |
| Temperature | 0.1 °C |
| Input Current (Typical) | −3 × 10⁻¹⁵ A |
| Accuracy (mV) | ±0.5 mV |
| Minimum Dispensing Volume | 0.0625 µL |
| Titration Modes | Dynamic, Equivalence-point, Fixed-volume, pH-stat, and Direct pH Measurement |
| Method Storage Capacity | 30 pre-programmed titration methods |
| Result Storage Capacity | 100 titration records |
| Display & Interface | Dual-language (Chinese/English) LCD interface |
| Software | Embedded titration monitoring software with firmware update capability |
| Compliance Support | GLP/GMP-compliant data output and audit trail generation |
| Titration Precision | ±0.01 pH over 3 h |
| Titration Resolution | 1/20000 |
| Brand | Forerunner |
|---|---|
| Origin | Beijing, China |
| Model | ZDJ-600 |
| Measurement Range | ±2400 mV / ±20 pH |
| Meter Accuracy | 0.01 mV / 0.001 pH |
| Meter Resolution | 0.01 mV / 0.001 pH |
| Titration Accuracy | ±10 µL (at 10 mL) |
| Titration Resolution | 1/20000 |
| Overall Accuracy | ±0.1% |
| Precision | ≤0.1% |
| Input Impedance | ≥3×10¹² Ω |
| Input Current | ≤1×10⁻¹² A |
| Temperature Range | 0–125 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Humidity Range | 10–85% RH |
| Humidity Resolution | 1% RH |
| Humidity Accuracy | ±5% RH |
| Titration Speed | 1–99 mL/min (adjustable) |
| Titration Tube Mounting | Tool-free replacement |
| Brand | Forerunner |
|---|---|
| Origin | Beijing, China |
| Model | ZDJ-3D |
| Instrument Type | General-Purpose Potentiometric Titrator |
| Application Scope | Universal |
| Potential Measurement Range | 0–2000 mV |
| Meter Accuracy | ±0.1 mV |
| Meter Resolution | 0.1 mV |
| Titration Accuracy | ±0.2 mV or ±0.1% of reading |
| Titration Resolution | 1/100,000 |
| Temperature Control | PID with dynamic compensation, external heating/cooling interface |
| Display | Large backlit Chinese LCD |
| Communication | RS-232 serial interface |
| Software Platform | Windows-based monitoring software |
| Titration System | Piston-driven burette with anti-diffusion titration tip |
| Burette Mounting | Push-in modular design |
| Brand | Forerunner |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Instrument Type | General-Purpose Potentiometric Titrator |
| Application Scope | Universal |
| Measurement Range | −1999.0 to +1999.0 mV |
| Meter Accuracy | ±0.2% of full scale |
| Meter Resolution | 1 mV (mV mode) |
| Titration Accuracy | ±0.3 mV ±1 digit over 3 h |
| Titration Resolution | 1/20000 |
| Regulatory Compliance | Certified per JJG 814–2015 (Chinese National Metrological Verification Regulation), GMP-compliant design |
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