Specimen Preparation - Pressed Powder Briquette Preparation; Setting Up Beep Times; First Beep; Second Beep - Thermo Scientific XL2 User Manual

Specimen Preparation - Pressed Powder Briquette Preparation

Setting Up Beep Times

First Beep

Second Beep

Thermo Scientific
3. Weight 1.0g of calcinated sample into fusion crucible add 5.0 g of lithium tetraborate and
0.3 lithium fluoride, and 10-20 mg lithium bromide as a nonstick agent.
4. Fuse in a fluxer for at least 4 min in the flame.
5. The resulting disk is released from the mold, cooled, then presented to the spectrometer.
1. Thoroughly remix the sample in its jar by rotating in a figure-eight motion with two hands
2. Weight 7.0g of sample into weighting boat by taking several separate gram-size portions
then fine grind sample using a swing mill.
3. Add 2 small drops of propylene glycol on the top of the powder sample in the mill as a
grinding aid, grind 4min at 1000rpm to obtain 10 ?m particle size.
4. Add 0.5g binder to the sample and continue grinding for 30sec more.
5. Brush the finely grounded samples into 31 mm aluminum sample cap and press at
50,000psi for 1 min.
CAUTION All test equipment must be kept clean to prevent contamination of samples.
Selecting the Measurement Parameters icon allows you to set up Beep Times, enabling
changes to the beep settings for various modes. This option allows you to change the beep
settings for different modes independently. Select Mode you want to change, then the
Measurement Parameters icon to set up your preferred beep times.
This option allows you to change the seconds of delay before the First Beep. Select the screen
button labeled with the number of seconds of delay for the First Beep. The Beep One Time
editor will open. Clear the current number of seconds with the "C" button, then select the E
button to enter the information.
This option allows you to change the seconds of delay before the Second Beep. Select the
screen button labeled with the number of seconds of delay for the Second Beep. The Beep
Two Time editor will open. Clear the current number of seconds with the "C" button, then
select the E button to enter the information.
5
Common Operations
Setting Up Beep Times
Niton XL2 Analyzer User's Guide 65