Dupont 490 Source Heater

This redesigned source heater for the Dupont 21-490 mass spectrometer consists of a 25 coil Tungsten/Rhenium heater mounted to a ceramic press with leads attached. Two styles are available, the DFB for the 490 and 491 instruments and the DFD for the 492 instruments.

Dupont Heaters can be repaired. See the Dupont Filament Repair Section.

UOM=EA
Part No.	Description	est wt.	Quantity In Stock	Price	Quantity to order
DFB	Dupont 21-490 and 491 heater	0.25	0[*L]Standard lead-time for out-of-stock items is approximately two weeks depending on the item.	$250.00
DFD	Dupont 21-492 heater	0.25	0[*L]Standard lead-time for out-of-stock items is approximately two weeks depending on the item.	$250.00
[*L] Standard lead-time for out-of-stock items is approximately two weeks depending on the item.
Ordering information. International (non-US) prices available through your local dealer.

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