manufacturer:      Oxford

model:                  X-Met 3000 TX

The following illustrations and descriptions refer to the instrument model and are drawn from brochures. They do not represent the scope of delivery. Please refer to the text of the offer for the exact scope of delivery.

Probe

The excitation source in the X-Met3000TX is in X-ray tube. The standard target material is Silver. The probe contains a high resolution Si-PIN diode detector with Peltier cooling.

PDA computer

The removable PDA Computer in the X-MET includes the user interface for operat ng the Instrument. The computer is installed in the cradle of the instrument. The display is a 320x240-pixel color touch screen, which can be operated either with a fingertip or the stylus provided. For further information about the computer refer to the HP iPAQ 2210 instruction guide. The guide can be found with the CD delivered with the instrument.

Operating conditions of the X-MET3000TX

Temperature

   Probe      -10...50 °C

   Charger   -10...45 °C, operating

                   -40...70 °C, non-operating

Humidity

   Continuous Operation at 20...95 % RH, no condensation. The charger is designed for

   indoor use only.

Shock resistance

   In transport and operation the Instrument must not be dropped or left in exceptional

   conditions, which might damage its sensitive components.

   During the measurement, small vibrations may Iead to inaccuracies if the vibrations

   influence the detector.

Line voltage

Probe 90 — 240 V, 50 — 60 Hz.

PDA 100 — 240 V, 50 — 60 Hz

Charger 85 - 265 V, 47 - 63 Hz

Battery power

The X-MET batteries are situated inside the handle. To remove the battery, push the switch and pull to remove the battery. Each fully charged battery will operate the X-MET for approximately 4 hours.

Line (NC) power

Line operation of the X-MET is possible by connecting the AC adaptor to the instrument. To do this, remove the battery and connect the AC adaptor to the plug in the bottom of the handle.

Charger

The battery charger is provided for charging X-MET batteries. To charge a battery, remove it from the X-MET and connect the battery to the charger. Charging the X-MET batteries can take up to 2 hours if they are fully discharged.

Also, the PDA has internal batteries. Be sure to fully charge the PDA batteries using the iPAQ AC adapter prior to using the instrument for the first time. The PDA draws power both from the X-MET battery and its internal battery, but will not charge frorn the X-MET battery.

Hot Surface Adapter

The hot surface adapter is a standard feature of the X-MET3000TX. lt is designed for measurement at hot surfaces like hot tubes or plates. The adapter lowers the heat conduction and radiation from the hot sample to the detector. This is necessary because the detector crystal has to be cooled and stabilized to maintain its analytical performance. However, the heat conduction can not be prevented completely, thus there are limitations an the measurement times. Table 1 illustrates the limitations — surface ternperatures with measurement and cooling times between measurements.