Assembling and cleaning
The powder dosing apparatus has been constructed for easy assembly and cleaning.
The powder doser can be coupled to all common glass apparatus having standardized grounded fittings NS 29/32 or carrying threaded connectors SVL. All parts coming into contact with chemicals are made of resistent materials.
Small dimensions
Special attention was paid to minimize the dimensions of all parts of the powder doser. The powder doser can be adapted easily to complex laboratory installations.
Robust
The construction in combination with high quality materials assure a long life of the powder doser.
Air tight
Several seals make the powder doser air-tight. Therefore it can be utilised with small over- or underpressure. The instrument can also be flushed with a neutral gas if it is necessary for a given reaction.
Economical
Automatic powder dosage frees technicians for other work. Due to better reproducibility and elimination of errors the number of experiments can be reduced. Excellent priceto quality ratio.
Remote control
The speed of addition can be remote controlled over the whole range by applying a voltage of 0 to 1 V. ON/OFF control through an external contact or 12 V signal.
Quantification
The powder doser can be connected to the flow integrator, which allows quantification of the amount of solids added as a function of time. This is of importance when the powder doser is controlled by a controller (eg. pH-stat, thermostat , etc.)
Guarantee
2 years
Technical data
| Control unit: |
13 × 7 × 6 cm (L × W × D) |
| Powder Dosing part: |
30 × 12 × 5 cm (L × W × D) |
| Power supply: |
12 VDC, 5 W by mains adaptor |
| Remote control: |
0—1 VDC, 12 VDC |
SPECIFICATIONS
Dimensions: |
tube: 30 x 12 x 5 (H x W x D) cm
motor unit: 6 x 7 x 13 (H x W x D) cm |
Weight: |
950 g |
Power supply: |
12 V DC, 5 W |
Operating temperature: |
0-40 °C |
Operating Humidity: |
0-90 % |
Remote control: |
0-1 V, 12 V * |
* ! For safety reasons the voltage of the remote control signal to earth must not exceed 48 V DC.
INPUTS / OUTPUTS:
Contact no. and cable (Cat. no. 4810) color code: (figure 5, 6)
Contact no.: |
|
1 |
Input remote speed control 0-1 V (yellow) |
2 |
Output step signal from stepping motor 0, 12 V (grey) |
3 |
0 V (green) |
4 |
12 V + (brown) |
5 |
Input of remote ON/OFF control (white)
0 V ... ON, 12 V ... OFF |
The logic of this remote control can be inversed see section 7.
|
DESCRIPTION 
SPECIFICATIONS
ACCESSORIES
INSTALLATION
OPERATING INSTRUCTIONS
APPLICATION NOTE
GUARANTEE
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