Hardness as CaCO3
Applications
- Power plants
- Cooling water
- Water steam cycle
- Boiler feedwater
- Reversed osmosis
- Ion exchangers
- Ultrapure water
- Drinking water
Description
Colorimetric analyzer for the determination of water hardness.
Method
The photometric determination is based on the reaction of calcium ions with an o-cresolphthalein complexone solution, which yields a violet colored complex. The intensity of the color is proportional to the calcium concentration in the sample. The absorbance of the complex is measured at 572 nm.
Reagents
- Hardness reagent kit 1l r1 r2
- Hardness reagent kit 2l r1 r2
- Hardness reagents (predosed powders) 5 L
- Hardness reagents ready to use 2l r1 r2
Standard solutions
Features
| Range (Ø 26 mm) |
500 ppb |
| Range (Ø 16 mm) |
1000 ppb |
| Wavelength | 572 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) |