Skip to main content

What are the electrical requirements for a Xevo G2 QTof? - WKB6575

Article number: 6575


  • Xevo G2 QTof


Power Requirements

Power Supply
The Xevo G2 QTof and the rotary/scroll pump require one power socket each. The embedded PC requires a further power socket. The power supply sockets must be located within 2 m (6.5 ft.) of the instrument. Do not position the equipment, so that it is difficult to disconnect the mains cable.

The data system typically requires two power sockets located adjacent to the Xevo G2 QTof for the instrument PC and monitor. You may need further outlets for optional equipment, such as a printer.

A typical LC system may require three or more additional sockets — refer to the relevant LC documentation for information.

Important: Mains voltage fluctuations must not exceed ±10%.
The power requirements for the equipment are summarized in the following Table.

Important: Voltage supply stability is critical for instrument operation. The nominal power supply voltage must fall within the ranges specified in the above table at all times to allow for the occasional 10% surge.

The supplies must be wired with a protective earth and fused or fitted with circuit-breakers of the specified ratings, in accordance with local regulations.

The mains supply must not have brownouts/surges greater than ±10%, and must not exceed the specified maximum operating range for more than 0.3 sec. Transient voltage drops to half nominal voltage or less must have a duration of less than 20 ms. There must be less than 1.0 V RMS of ripple on the mains supply.

It is also recommended that additional protection is provided for the instrument by means of:

  • Residual Current Devices (RCDs) for UK and Europe
  • Ground Fault Circuit Interrupters (GFCIs) for the rest of the world

In the case of instruments fitted with a transformer, the RCD/GFCI must be fitted on the primary (supply) side of the transformer.

Electrical Transformers
If there is a possibility that the supply voltages do not meet the specified operating range under all conditions, you must use a transformer to change the primary supply voltage to the specified range. Mains conditioners/stabilizers are also available as an optional accessory. Contact Waters with advance notification if you are likely to experience power supply problems and for additional advice.

In the case of instruments fitted with a transformer, you must fit the RCD/GFCI on the primary (supply) side of the transformer.

If your order includes a nitrogen generator and the mains supply is known to run continuously at voltages less than 220 V, Waters and Peak Scientific recommend fitting one of the following transformers between the generator and mains supply.

Caution: Running nitrogen generators continuously at voltages less than 220 V is not recommended and extended periods at these extremes can affect the operation.

System Plug Options

The system plug options are shown in the following Table. The instrument is shipped with the plugs that were requested at the point of order. The user must provide appropriate sockets for the relevant type of plug used. If the available sockets are incompatible with the plugs supplied, the customer must supply appropriate cord sets for the instrument and pumps. The cord sets must comply with local regulations.

Computer equipment is typically rated at 100 to 120 V / 220 to 240 V, 50/60 Hz. In some cases, it may be necessary to set the appropriate voltage using a voltage selector switch before connecting the equipment to the power supply. For full details, refer to the instructions provided with the equipment.

Note: If you must install ancillary equipment (for example, compressors), you may need additional power outlets, possibly requiring 3-phase supplies. Confirm these supplemental needs with the local Waters agent prior to the start of the installation.

Uninterruptible Power Supply

To prevent instabilities in local mains power impacting system reliability and performance, Waters recommends the use of an uninterruptible power supply (UPS). In support of this recommendation, Waters supplies UPS units that have been specifically configured and evaluated for use with Waters MS systems. Your local Waters field sales representative can provide further details.

These UPS units step up single-phase line voltage to 230 V AC, provide power conditioning and protection for the MS system.
For North America, the UPS system requires one L6-30 (30 amp) wall socket. In other areas, the UPS system typically connects to your laboratory mains power using the standard MS instrument power cord and wall socket required for your system.



See the Xevo G2 QTof site prep guide

Not able to find a solution? Click here to request help.