Jenway 6300 Ser Man
15
lamp fitted, cuvette/sample or other obstruction in the light path
through the sample chamber as well as a possible optical
component failure or misalignment.
Err 6
, No dark level found in start up routine. Leaving the sample
chamber open during the start up routine or opening it once the
procedure has started can cause this error. It can also indicate the
failure of the dark shutter solenoid, the solenoid drive or the
associated control circuits.
Err 7
, Grating position sensor not detected. This error occurs
during the wavelength calibration procedure in the start up routine
and is generated at the beginning of this procedure. The grating is
driven in a clockwise direction until the attached vane breaks the
path of an opto-coupler. This is effectively the ‘end-stop’ and the
point from which auto-calibration will always start. Failure to
detect this point may be due to a faulty opto-coupler, wavelength
drive from the power supply PCB, a faulty motor or mechanical
coupling.
2.6
Special Key Functions
There are a number of special key functions for use by trained
engineers, do not use them unless you are fully conversant with all
the procedures these invoke.
Power On Reset
. Hold the <Enter> key depressed while turning
on the power. This clears the operator set parameters held in non-
volatile memory and is useful in correcting many software
conflicts. As this procedure by passes the start up routine the
instrument must be re-booted before use.
Analogue Output Calibration
. Hold the <up arrow> key
depressed while turning on the power. This enables fine calibration
of the analogue output against internally generated reference
voltages. See Section 8.6.
View Start Up Routine.
Hold the <Cal> key depressed while
turning on the power. This enables the detector output and grating
position to be monitored on the display during the Start Up
Routine.
