Surgical Forums

Added  Mar 4 2024
0 Replies

my question is the speed of Trendlenburg positions

Equipment: Schmitz - Diamond

RE: Schmitz - Diamond
Updated  Mar 3 2024
1 Reply

Bipolar energy is not out continue


Equipment: Megadyne - Mega Power

RE: Megadyne - Mega Power
Added  Feb 27 2024
0 Replies

troubleshooting

Equipment: Hall 50

RE: Conmed - Hall 50
1 Reply

I am helping a surgeon with his Ohmeda 7800 vent off this Exel 210 Anesthesia machine. Nice American technology from the late 1980s using the 8031 ROMless 8051 processor. Nice to see this - something serviceable but there are no technicians in Dallas or perhaps anywhere else who will touch it. He is faced with possibly having to purchase a new machine due to a voltage calibration error on the vent (Vent fail 6 as above). I want to test the vent away from the anesthesia machine and calibrate the voltages as per the service manual. 

I noted that the vent does not operate as soon as the DB25 cable is removed from the machine. This cable interfaces the oxygen sensor on the machine to allow the user consolidate FiO2 and O2 level warnings onto the 7800. However, the 7800 also receives some sort of signal from the Excel 210 which powers 'on' the vent through this DB25 connector.  This signal no doubt comes in the form of either a switch closure (or opening) or a voltage level on one or more pins as the vent 'turns on' when both its switch is 'on' and the anesthesia machine switch is 'on'.

What is the 'hack' to apply to the female DB25 end of the cable to allow the vent to operate off the machine. The O2 functions will, of course, not work without the sensor and associated circuitry but perhaps I can turn 'on' the vent while it's away from the machine if I can simulate the 'on' state of the machine thru the cable.

Perhaps there is not an easy hack to emulate connection to the machine but I would assume this vent can run independent of the machine with the proper inputs.

BTW, the vent won't go into calibrate mode off the machine apparently.

The very last page (9-20), page 286, shows the pinout of this connector that feeds 15 wires to the internal workings of the vent.

Cheers!

RE: Datex Ohmeda - 7800
0 Replies

The Remote control has error 70 when is turned on and could be able to do its function , so please Is there any solution for this error ? 

Equipment: Schmitz - Diamond

RE: Schmitz - Diamond
Updated  Feb 21 2024
3 Replies

Hi

Could anyone recommend a website to purchase the on-off button for the 1188 HD Stryker processor?

Equipment: Stryker - 1188 HD

RE: Stryker - 1188
Updated  Feb 21 2024
1 Reply

My equipment is not switching to auto mode

Equipment: Aeonmed - 8700A

RE: Aeonmed - 8700A
Updated  Feb 20 2024
1 Reply

Hi,

Is E172 fatal on these machines?

Thanks

Equipment: Olympus - ESG-400

RE: Olympus - ESG-400
Updated  Feb 19 2024
3 Replies

I'm trying to obtain a copy of the service manual.

Equipment: Excel 210SE/7900 TRM

RE: Datex Ohmeda - Excel 210 SE

Ask a Question

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Please review our Privacy Policy for more details.
I Agree