Page 83 - SICCO catalog

SICCO Gas Dosing Controller
Specification:
Controls the inlet of gas into the SICCO Glove Box to reduce gas consump- tion. The set consists of a gas dosing controller, a sensor cable, a tubing for connecting the flow meter with the measuring instrument and a power cable. Electrical power connection 230 V / 50 Hz as well as two free cable lead-ins, one for gas supply and one for the sensor, are required.
Artikel-Nr.:
Setting Range Humidity:
Applications:
The control of gas supply is determined by the relative humidity inside the glove box, the relative humidity is monitored by a sensor which has to be led into the glove box by using a cable lead-in. When the required residual humidity is reached, the gas supply will be stopped. In case of a deviation larger than 1 % from the adjusted value, the pass opens and gas is led into the glove box again.
V 1775-02
0 – 50 % rH
Setting Range Temperature:
from -20 °C up to +60 °C
Display Range:
0,1 – 99 % rH, -30 °C up to +70 °C
Accuracy of Sensor:
+/- 3 % rH, +/- 0,5 °C
Resolution:
0,1 % rH, 0,1 °C
Gas Flow Meter:
2 – 10 Litres/min
Length of sensor cable:
1,2 m
Weight:
1800 g
How it works:
To achieve a constant humidity inside the work space of your glove box, it is recommended to use the SICCO Gas Dosing Controller, which is installed between the gas tap and the glove box. For operation, two free cable lead-ins are required. One for inserting the sensor and the other one for connecting the tube of the Gas Dosing Controller with the work space of the glove box. Simply adjust the required relative humidity directly on the Gas Dosing Controller, the gas supply is open. When the adjusted value is reached, the supply on the Gas Dosing Controller closes. The sensor inside the work space constantly monitors humidity. Once humidity deviates for more than 1 % of the adjusted value, the gas supply automatically opens again after 3 minutes. Thus, humidity is kept on the same level. The time lag of 3 minutes prevents an unnecessary inlet of gas, for example, if the door of the glove box is only opened for a short period of time.
For a deviation larger than 5 % an alarm signal sounds. Such a deviation might occur, for example, if the door is permanently opened or if the gas bottle is empty.
By means of the automatic switch-on and switch-off function you can save up to 60 % of gas.
SICCO INNOVATION
Hotline +49 (0) 93 46-92 86-0
Gas Dosing Controller
Using the SICCO Gas Dosing Controller, the gas inlet is automatically regulated in de- pendance of the inside relative humidity.
page 102
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Drying properties
Please read our information on pages 88-95.
73
Glove Boxes/Extractor Hoods