
Thermoreactor RD 125
With capacity for up to 24 x 16 mm round cuvettes, the RD 125 allows multiple samples to be prepared simultaneously, making it well suited to routine laboratory testing. Automatic shut-off at the end of the selected reaction time and an audible signal help make sample preparation straightforward and repeatable.
Flexible Temperature and Time Control
The RD 125 offers three selectable digestion temperatures of 100 °C, 120 °C and 150 °C, allowing the appropriate temperature to be selected according to the test method.
Pre-programmed reaction times of 30, 60 and 120 minutes simplify routine digestion procedures, while continuous operation provides additional flexibility when required.
Once a programmed reaction time is complete, the reactor automatically switches off and provides an audible signal, helping operators manage routine sample preparation efficiently.
Efficient Multi-Sample Digestion
With capacity for up to 24 x 16 mm round cuvettes, the RD 125 enables multiple samples to be digested during a single heating cycle. This makes it particularly useful for laboratories carrying out regular batches of COD and other photometric water tests.
The reactor heats from 20 °C to 150 °C in approximately 12 minutes, helping reduce preparation time and keep routine analysis moving efficiently.
Designed for Routine Laboratory Use
Compact and straightforward to operate, the RD 125 can be conveniently positioned on a laboratory workbench and integrated into existing water analysis workflows.
Both 230 V / 50–60 Hz and 115 V / 50–60 Hz versions are available, supporting use in laboratories across different regions.
Key Features
- Controlled sample digestion for photometric water analysis
- Suitable for COD, total chromium, total phosphate, total nitrogen and TOC
- Three selectable temperatures: 100 °C, 120 °C and 150 °C
- Pre-programmed reaction times of 30, 60 and 120 minutes
- Continuous operation available
- Automatic shut-off after the selected reaction time
- Capacity for up to 24 x 16 mm round cuvettes
- Heats from 20 °C to 150 °C in approximately 12 minutes
- Audible signal at the end of the programmed reaction
- 230 V and 115 V versions available
- Compact design for routine laboratory use
- CE compliant
Applications
- Chemical Oxygen Demand (COD) Testing
- Total Chromium Determination
- Total Phosphate Determination
- Total Nitrogen Determination
- Total Organic Carbon (TOC) Testing
- Laboratory Water Analysis
- Sample Preparation for Photometric Analysis
Technical Data
- Auto-Off: Yes
- Power Supply: 230 V / 50–60 Hz or 115 V / 50–60 Hz
- Temperature Settings: 100 / 120 / 150 °C
- Reaction Times: 30 / 60 / 120 minutes and continuous operation
- Heating-Up Time: Approx. 12 minutes from 20 °C to 150 °C
- Cuvette Capacity: Up to 24 x 16 mm round cuvettes
- Audible Signal: Max. 88 dB (piezo buzzer)
- Environmental Conditions: 10–40 °C, max. 85% relative humidity
- Compliance: CE
- Dimensions: 219 x 171 x 248 mm
- Weight: 3.9 kg
| Order Code | Description |
|---|---|
| 2418940 | Thermoreactor RD 125 |
Range
| Test Parameter | Measuring Range |
|---|---|
| Chromium 50 PP | 0.005 - 0.5 mg/L Cr |
| Chromium PP | 0.02 - 2 mg/L Cr |
| COD HR TT | 0.2 - 15 g/L O2 |
| COD HR TT | 200 - 15000 mg/L COD |
| COD LMR TT | 15 - 300 mg/L COD |
| COD LMR TT | 15 - 300 g/L O2 |
| COD LR TT | 3 - 150 mg/L COD |
| COD LR TT | 3 - 150 g/L O2 |
| COD MR TT | 20 - 1500 mg/L COD |
| COD MR TT | 20 - 1500 g/L O2 |
| COD VLR TT | 2.0 - 60.0 mg/L COD |
| COD VLR TT | 0.2 - 15 g/L O2 |
| Phosphate h. TT | 0.02 - 1.6 mg/L P |
| Phosphate t. TT | 0.02 - 1.1 mg/L P |
| Phosphate total HR TT | 1.5 - 20 mg/L P |
| Phosphate total LR TT | 0.07 - 3 mg/L P |
| TN HR 2 TT | 5 - 140 mg/L N |
| TN HR TT | 5 - 150 mg/L N |
| TN LR 2 TT | 0.5 - 14 mg/L N |
| TN LR TT | 0.5 - 25 mg/L N |
| TOC HR M. TT | 50 - 800 mg/L TOC |
| TOC LR M. TT | 5 - 80 mg/L TOC |


