Larimax Spectramass DATAQUAD Residual Gas Analyser (RGA) Control Unit.
Excellent cosmetic condition (there are a couple indentations on a plastic film protecting the monitor, but not on the monitor itself; the monitor is a few centimeters behind the film).
Cannot be completely tested, but appears to be fully functional. 100% Satisfaction guarantee (see below for details).
The Spectramass DATAQUAD - RGA
The Dataquad RGA is a complete 'Stand Alone' RGA system with its own mictroprocessor electronics. With a dedicated keyboard, monochrome monitor and extensive software, Dataquad offers the user exceptional performance at low cost.
All Dataquads are supplied with Datapacks 1, 2 and 3 providing the main operating modes of Bar Graph, Peak Select (Channel and Trend), Analogue and Leak Detect with facilities such as logarithmic or linear display, backgrounds, library and split spectrum display. RS232 and centronics ports are standard. A separate software package is available to control and display the Dataquad from a PC Computer, which offers many additional facilities including datalogging and data recall/review. Refer to supplementary leaflet for further information.
The Control Unit
The control unit contains all the main power supplies, microprocessor and interface electronics mounted on 3 plug-in easily replaceable circuit cards. The unit also contains a 9" display monitor and a dedicated membrane key panel to provide a complete 'stand alone' RGA system housed in a 5U high 19 inch rack module.
Technical Data
Mass Range: 1-100, 2-200.
Resolution: 10% valley between equal peaks.
Minimum detectable partial pressure: 2x10-11 mBar Faraday, 2x10-13 mBar SEM
Minimum detectable total pressure: 1 x 10-11 mBar.
Maximum operating pressure: 1x10-4 mBar Faraday, 1x10-5 mBar SEM
Electron energy: 70eV
Ion Energy: 6eV
Emission: 1 mA *
Bake-out temperature: 250°C recommended. 350°C maximum
R.F frequency: 1.84Mhz std.
R.F. amplitude: 800V p/p at maximum mass
Rod diameter: 6.35 m.m.
Rod length: 100 m.m. std.
Power requirements: 105/115/220/240 volts 50/60Hz 50Watt
Integral VDU: 9" monochrome
For more info, please visit Larimax Spectramass DATAQUAD web page.
Instruction Manual for DATAQUAD Version V3.29 can be downloaded here.
For other great lab equipment and supplies, please see my other listings.



100% Satisfaction Guarantee: If you are not satisfied, you can return the item(s) for a full refund (minus shipping). The item(s) must be returned in the same condition as they were originally shipped. Make sure the item(s) are packaged well and insured: if an item is damaged during a return shipment, it will be the responsibility of the buyer to file an insurance claim and receive the reimbursement from the shipping company.
The Satisfaction Guarantee DOES NOT APPLY to items damaged in shipping - I am not responsible for a damage caused by other people’s actions. All I can do is to pack an item well and insure it. Therefore, if an item is received damaged, an insurance claim will need to be filed. You will receive a refund only after we go through the insurance claim procedure. The claim procedure is the following: the recipient makes a number of large and detailed photos of the damage and e-mails them to the sender; the sender files a claim, submitting photos and description of the damage; a shipping company representative collects the package for inspection; the sender is notified about the decision regarding the claim; a check (if any) is issued. These are not my rules – such are the rules of shipping companies.
IF YOU RECEIVE A DAMAGED ITEM, YOU CAN NOT RETURN IT TO ME FOR A REFUND WITHOUT GOING THROUGH THE INSURANCE CLAIM PROCEDURE. No refund will be issued in this case, because I will not be able to file a claim and receive a refund from the shipping company. SAVE THE BOX AND ALL PACKAGING MATERIALS – without them, an insurance claim will not be accepted by the shipping company. It is the responsibility of the recipient to satisfy the insurance requirements of the shipping company: I have no control over the way you handle the return of the item to the shipping company. Make sure the item is packed as it was originally, with all packaging materials – the most common reason for declining a claim is ‘insufficient packaging’. I always pack well and use plenty of packaging materials, but if some of them are discarded or the damaged item is repackaged inaccurately, the shipping company may decline the claim. If the claim is declined, you will not receive the reimbursement: it is paid by the shipping company, not by me.
This is not meant to discourage you from buying (a damage in shipping does not happen very often, I package all items well), but rather to separate the responsibilities and to emphasize that I have no control over what happens to a package after I ship it. I have the responsibility to package an item well. Once you receive a package, you have a complete control over it - I don't. And if it is received damaged, it is only you who can handle the package properly to satisfy the insurance requirements.
On May-17-08 at 00:56:47 PDT, seller added the following information:ATTENTION: Until June 4, you can receive a 10% DISCOUNT (up to $100) if you pay through PayPal! If you want to receive this discount, please DO NOT PAY immediately after the purchase. Wait for a NEW INVOICE with the promotional code and instructions how you can receive this discount. Use this great opportunity to save!