Digox 602 sodium
Measuring of the sodium value at low concentrations in steam is of great importance in power plants. This is due to the fact that sodium is an important element in the corrosive process. This measurement allows, e.g., fast monitoring of leakage in the condenser or hole in the cation exchange resin. Sodium measurement is becoming increasingly important in the revision of the VGB guidelines (S-006 / S-010).
Digox 602 sodium is an analyzer for continuous measuring of dissolved sodium, even at the level of the element trace and it is ideal, e.g., for operation in steam of power plants, for controlling full demineralization of the unit, seawater desalination and in the semiconductor and electronics industry.
Technical Specification
|
Device |
Digox 602 sodium |
|---|---|
|
Measuring range |
0,1 - 9999 ppb Natrium |
|
Measuring principle |
measuring of the potential of the ion-sensitive Na-electrode against the reference electrode |
|
Display |
graphical display, measured values for each channel with time and operating conditions |
|
Accuracy |
maximum {± 2% of the reading; ± 2 ppb} within the measuring range 0.1 - 2000 ppb maximum {± 5% of the reading; ± 5 ppb} within the measuring range of 0.1 - 9999 ppb |
|
Repeatability |
maximum {± 2% of the reading; ± 2 ppb} within the measuring range of 0.1 - 2000 ppb maximum {± 5% of the reading; ± 5 ppb} within the measuring range of 0.1 - 9999 ppb |
|
Calibration |
Three-point calibration by a triple standard allowance |
|
Agents |
0.5 l of standard solution; 1.0 l Diisopropylamine (alkalization), NH3 solution (option) |
|
Data interface |
Profibus DP (optional) |
|
Binary inputs |
6 control inputs for external contacts for channel suppression and remote control |
|
Alarm outputs |
two relays (1x for warnings and 1x for alarms), load at 250 VAC / 3 A, max. 24 VDC / 3 A |
|
Operation |
Password protection for two levels, entering trash values, communication parameters and measuring cycles |
|
Analogue outputs |
Up to 6 analogue outputs 4… 20 mA, max. load resistance of 500 Ω |
|
Response time |
180 seconds (95%) within the measuring range of 0.1 - 2000 ppb; 600 seconds (95%) within the measuring range of 0.1 - 9999 ppb |
|
Ambient conditions |
+5 - +45 ° C, storage and transport 0 - 50 ° C 1), relative humidity 30 - 95% |
|
Sample quality |
10 - 40 ° C, 10 - 15 l / h, 1.0 – 5.0.bar, pH 4 - 11 (without buffer) |
|
Connection |
1-6 input channels with an application for maintaining constant pressure, another laboratory sample possible |
|
Power source |
100 - 240 VAC 50/60 Hz, 150 VA, battery-free saving of parameters, no loss of data after power interruption |
|
Standard compliance |
Compatible with CE and CB according to EN 61010-1 / EN 61326-1 / EN 61326-2-3 / EN 50581 |
|
Protection system |
IP 65 / electronic unit |
| Weight | 30.0 kg |
|
Dimensions |
850 x 450 x 250 mm (height x width x depth) |
|
Room for assembly |
1050 x 550 x 500 mm (height x width x depth) |
Main Function
- Very low diisopropylamine consumption (conditioning): usually 0,5 l / month at pH 7 and temperature of 25 °C
- Automatic three-point calibration, adjustable time interval
- Individually adjustable sequence and measurement time in a multichannel device
- Control and monitoring of adjustable pH value
- Usable in the range (without buffer) pH 4-11
- Automatic temperature compensation
- Galvanically isolated signal outputs
- Pressure regulator and easy to clean channel pre-filter
- Built-in sequencer for up to 6 sampling channels
- Additional connection for measuring of the laboratory sample
- Profibus DP interface
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