Chromium
Chromium
Cr(III)/Cr(VI)
Applications
- Drinking water
- Industrial wastewater discharge limit monitoring or process optimization
- Surface water
Description
Colorimetric analyzer for Cr(III) / Cr(VI) ions determination.
Method
The determination is based on the reaction of 1,5-diphenylcarbazide with Chromium(VI) in an acid medium. The absorbance intensity is proportional to the chromium concentration in the sample and is measured at 525 nm.
Reagents
Standard solutions
- Chromium vi standard kit 1000 ppm 1l
- Chromium standard solution kit (predosed powder) 100 ppm, 1 L
- Chromium vi standard solution 1000 ppm 500ml
- Chromium vi standard solution 1000 ppm 1l
- Chromium standard solution, 100 ppm, 500 mL
- Chromium vi standard solution 100 ppm 1l
- Chromium standard solution, 200 ppb, 1 L
- Chromium standard solution, 500 ppb, 1 L
Features
| Range (Ø 26 mm) |
300 ppb |
| Range (Ø 16 mm) |
1000 ppb |
| Range (with dilution) |
50 ppm |
| Wavelength | 525 nm |
| Number of reagents | 2 |
| Min. analysis time | 6 minutes |
Technical Specifications
| Model | 3S-CL |
| Sampling Mode | Batch, with freely settable frequency. |
| Sample | Pressure: Atmospheric Temperature: 5 ‐ 45°C (41 ‐ 113°F) Flow Rate: 80 to 500 mL/min Connection: 6 mm (¼-in.) |
| Drain |
Pressure-free drain Connection: 12 mm (½-in.) |
| Input Streams | 2 |
| Material | Epoxy-coated stainless steel AISI 304 |
| Dimensions (H x W x D) | 604 x 380 x 210 mm (23.6 x 14.8 x 8.2 in) |
| Weight | 20 kg (44 lbs) |
| Power Supply |
Input Voltage: 115 VAC,230 VAC,24 VDC Power consumption: max. 80 W |
| Output signals |
2 x 4-20 mA analog outputs Modbus via RS485,Ethernet |
| Alarms | 2 SPDT programmable voltage-free relays |
| Digital Input | None, Online, Start Extra, Skip Idle, Emergency Stop |
| Ambient Temperature | 5 - 45 °C (41 - 113 °F) |
| Ambient Humidity | 10 - 90 % RH (non-condensing) |
| Protection Grade | IP54 (indoor only, outdoor use possible with external cabinet, not included) |