13
Start Up Sequence When the unit is switched on the fans should power up and the
display on the front panel should read –
The N*10DR generator is designed specifically to minimize operator involvement.
Given that the system is installed as described in earlier sections and is serviced in
accordance with the following maintenance recommendations then it should simply
be a matter of turning the generator on. The generator will automatically produce the
factory default flow and pressure.
Gas Generation When the system is running, the maximum number of compressors
operating at any time is two. To ensure the longevity of the system, the compressors
cycle in pairs, with a pair running for a three minutes while the other pair are turned
off to cool, then the running pair are switched off to cool and the idle pair are switched
on. The display will read -
Compressor Test
The system will now run through an automatic compressor check procedure. Each of
the four compressors is tested in turn to ensure that it is working. The compressor
check takes a minute or so and then the system will turn on fully and “PLEASE WAIT”
will be displayed while pressure builds. The pressure can be monitored on the front
panel gauge.
*Note: The outlet should be vented to atmosphere for at least 30 seconds to
purge the system of impurities.
If only a small volume of gas is being drawn from the system, it will automatically
change into ESI mode. The display will read -
Peak Scientific
Mode: APCI
Whilst running in this mode, if too much gas is then being drawn from the system, it
will automatically change into APCI mode to meet the increased demand.
The user can manually select ESI or APCI Compressor mode by pressing the
relevant button on the control panel. If ESI mode is selected while the system
requires two compressors, it will automatically return to APCI mode.
Peak Scientific
Mode: ESI
ESI
APCI
Operation
Nitrogen N*10DR Nitrogen Generator
UM – N*10DR – Rev 4
