multi N/C pharma HT
Installation and commissioning
51
}
Turn the autosampler on its side and put it down safely.
}
Remove the screw with the supplied hexagon socket screwdriver. Remove the trans-
port lock (red plastic part).
}
Place the autosampler on the bottom plate again.
Commissioning the autosam-
pler
}
Switch off the analyzer before installing the autosampler.
}
Plug the grounding conductor into the connection on the rear of the analyzer. Con-
nect the grounding conductor to the connection on the rear of the autosampler.
}
Plug the cable on the low voltage side of the external power supply unit into the con-
nection on the rear of the autosampler. Do not connect the power supply unit to the
mains power supply yet.
}
Connect the autosampler to the analyzer with the interface cable (interface on the
bottom of the sampler and "sampler" interface on the rear of the analyzer).
}
Attach the outlet hose to the outlet connection on the rear of the autosampler. Insert
the other end of the hose into the opening in the cover of the waste bottle.
NOTICE! Route the outlet tube at a constant downward incline. If necessary,
shorten the hose. The hose must not dip into the liquid.
}
Place the sample tray on the autosampler. Ensure that it clicks into place.
}
Check that the correct canula holder is installed on the autosampler arm. The num-
ber engraved on the bottom must match the maximum number of sample vessels on
the sample tray for this.
}
Insert the canulas with matching sleeves into the canula holders.
}
For NPOC measurement with parallel purging: Insert one canula each with sleeve in
both positions of the canula holder (Figure 30
}
For NPOC measurement with non-parallel purging: Insert both canulas in one sleeve
with two holes in the position on the right (see below, not suitable for AS vario ER).
Figure 33Sleeve with two canulas for non-parallel purging
}
Manually adjust the height of the canulas so that the canula tips protrude 1 to 2 cm
over the edge of the vessel at the highest position of the autosampler arm and do
not touch the vessels when the sample tray rotates.
}
Secure the canulas by slightly tightening the knurled head screws.
}
Connect the hoses from the analyzer to the canulas using Fingertight connections:
– Hose AA – sample intake hose
Hose 7 – purging hose for NPOC measurement
– To do this, guide the hose through the banjo bolt (see image).
– Slide the conical nipple onto the hose with the conical side towards the banjo
bolt. The conical nipple and hose must be flush.
– Retighten the Fingertight connections.
