Practically Classics Forum

As some of you may have read in the latest issue of PC, I've purchased a Sun DGA1500 engine analyser, the oscciliscope works fine, but I'm having trouble with the gas analyser, I've replaced the oxygen sensor and I now need it calibrating.
Does anyone know of a friendly Sun/Snap On engineer that could do this for me? (at a reasonable price!).

Any help would be appreciated.


John Simpson.

I thought there was a 'self test' on these done by holding down two buttons at the same time.??


Edit maybe thats the self test bypass im thinking of.

Edit2 are you talking about the little white cylinder thinggy with the plug in wire.?

A quick google finds this on the DGA1000:
Gas Calibration
As delivered, the analyzer can be gas calibrated by a Service
Technician with one or two cylinders of calibration gas. If you
desire to perform the calibration, use the gas regulator, part
number 0131-0031-01, and hose, part number, 5-052351-405 for
the procedure.
It is recommended that Equiserv calibrate your analyzer
once every six months. However, the following procedure
will allow you to calibrate the analyzer if desired.
The recommended calibration gas, part number
0271-0099-01, is gas with concentrations of:
— CO 8.0
— HC 3200 = propane
— CO2 12.0
— NO 3000
Without the NO option, part number 0271-0088-01
— CO 8.0
— HC 3200 = propane
— CO2 12.0
4-6
Maintenance
1. In the Test Menu, select item 3, Maintenance, and then
item 6, Gas Calibration.
2. Connect the calibration gas regulator to the calibration gas
port, item P in Figure 1-2.
Make sure the regulator is set properly for proper
pressure, 5–10 psi output.
3. Follow all screen prompts.
— The analyzer performs an Auto zero.
— Open the calibrator gas bottle value and press
ENTER to begin calibration when prompted.
4. The process continues automatically. When completed, the
Results Screen displays. Turn off the calibration gas bottle
value as soon as this screen appears.
5. On the right side of the Results Screen, GOOD/BAD is
identified for each gas. The actual values read during
calibration are shown on the left.
6. If calibration fails, BAD displays. Repeat the calibration.
Check all steps, tag values, gas bottle connection before
you begin. If the unit fails again, contact your Service
Representative.

from here:
http://www.equiserv.com/Common/UserManu ... 1000UM.pdf