MODEL SI-144
Microprocessor PH Meter
Precision Microprocessor PH Meter designed for accurate and reliable laboratory analysis.
Key Specifications
Function
pH or mV & temperature simultaneously
Display
Digital Display with 16 character x 2 lines Alphanumeric BL LCD.
Power supply
230 V ± 10% 50 Hz AC
pH Range
0 to 14 pH
Overview
The Microprocessor PH Meter from Spectronics India is engineered to deliver high-stability analytical performance for laboratory and quality-control environments. Manufactured using premium raw materials and advanced digital technology, this instrument ensures accuracy, ease of use, and long-lasting durability. It is an ideal choice for research, educational, and industrial applications.
Salient Features
What makes the SI-144 stand out
Highly stable & accurate measurements
User-friendly digital interface
Robust construction for laboratory use
Reliable and consistent performance
Backed by Spectronics India quality assurance
Technical Specifications
Complete specification table
| Function | pH or mV & temperature simultaneously |
| Display | Digital Display with 16 character x 2 lines Alphanumeric BL LCD. |
| Power supply | 230 V ± 10% 50 Hz AC |
| pH Range | 0 to 14 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ± 0.01 pH ± 1 digit |
| Slope adjustment | 80% to 120% By default 100% |
| Temp. compensation | 0 to100 ˚C Auto with temp probe / Manual with keys |
| Auto buffer recognition | 4.00 pH, 7.00 pH, 9.20 pH |
| Calibration | Auto as manual, 3 point / 2 point (Programmable) |
| mV Range | -1999 mV to +1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ± 0.1% ±1 digit |
| mV Calibration | Three point manual |
| Temperature Range | -50.0 ˚C to 200 ˚C |
| Temperature Resolution | 0.1 ˚C |
| Temperature Accuracy | ± 0.1% of range ±1 digit |
| Temperature Calibration | Three point manual |
| Sensors | Pt100 probe |
| Data entry | By six soft touch keys with audible sound |
| Storage | 1000 samples |
| Real time display | 24 Hour mode with Date |
| Interface | RS-232, Centronics & computer |
| Print format | All Data & Date Wise (Programmable) |
| Digital output | Serial RS-232 Parallel Centronics (Programmable) |
| Error Indication | pH ERROR, ORP ERROR, CAL ERROR & T-ERROR |
Accessories
What comes with it
Standard Accessories Included
Instruction Manual
Dust Cover
Power Cord
