Description
G1379B Degasser
The Agilent 1200 HPLC G1379B Micro Vacuum Degasser comprises a 4-channel vacuum container, including 4 micro structured membranes, and a vacuum pump. When the micro vacuum degasser is switched on, the control circuit turns on the vacuum pump, which is operated with constant speed and voltage, generating a partial vacuum in the vacuum container. The degasser maintains the partial vacuum with the help of a controlled leak in the degasser's proportional valve.
Performance specifications
| Max Flow Rate |
0-5 ml/min per channel |
| Number of Channels |
4 |
| Internal Volume per Channel |
Typically 1 ml per channel |
| Materials in Contact with Solvent |
PTFE, FEP, PEEK |
| pH Range |
1 – 14 |
| RS-232 Output |
For diagnostic purposes |
| Dimensions (W x D x H) |
13.5 x 17 x 3.1 in (345 x 435 x 80 mm) |
| Electrical Requirements |
100-120 or 220-240 VAC, 50/60 Hz |
G1312B Binary Pump
Specifications
| Hydraulic system |
Two dual piston in series pumps with proprietary servo-controlled variable stroke drive, floating piston design and active inlet valve |
| Setable flow range |
Setpoints 0.001 – 5 ml/min, in 0.001 ml/min increments |
| Flow range |
0.1 – 5.0 ml/min |
| Flow precision |
£ 0.07% RSD, or £ 0.02 min SD whatever is greater, based on retention time at constant room temperature |
| Flow accuracy |
± 1% or 10 μl/min whatever is greater |
| Pressure |
Operating range 0 400 bar (0 – 5880 psi) up to 5 ml/min |
| Pressure pulsation |
< 2 % amplitude (typically < 1 %), at 1 ml/min isopropanol, at all pressures > 1 MPa |
| Compressibility compensation |
User-selectable, based on mobile phase compressibility |
| Recommended pH range |
1.0 – 12.5, solvents with pH < 2.3 should not contain acids which attack stainless steel |
| Gradient formation |
High-pressure binary mixing, delay volume 180 – 480 μl without mixer, 600 – 900 μl with mixer, dependent on back pressure |
| Composition range |
1 – 99 % or 5 μl/min per channel, whatever is greater |
| Composition precision |
£ 0.5% absolute |
| Composition accuracy |
± 0.15% RSD, at 1 ml/min |
| Control and data evaluation |
Agilent ChemStation for LC |
| Analog output |
For pressure monitoring, 2 mV/bar, one output |
| Communications |
Controller-area network (CAN), GPIB, RS-232C, APG Remote: ready, start, stop and shut-down signals, LAN optional
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