Sencon SI9500 - Choosing an Operating Mode; Changing the Operating Mode

CHOOSING AN OPERATING MODE
The SI9500 can be altered by the user between two operating modes. The
jumper is located inside the unit and is not intended for frequent operation. It
is therefore necessary to decide which of the two modes described below will
best suit your particular requirements.
Fixed Channel Mode In this mode the unit will automatically
create fifty channels, each with a slightly higher calibration setting than
the previous, to span the usable range of calibration settings. In use,
the user finds the channel number that gives the closest reading to the
true reading of the known sample and then uses that channel for all
subsequent readings of that lacquer type.
This is a very similar method as used by STRAND (TM) gauges and
their imitators that offered twelve channels.
Custom Channel Mode In this mode, ninety nine channels are
made available, each of which the user can calibrate exactly to a
particular lacquer type. In use the user selects the channel (lacquer
number) that has been previously set to the lacquer type that is being
measured.
It is worth noting that all settings are permanently retained in the units
memory until they are erased or re-set.
Of these two modes, custom channel mode offers the greatest accuracy but
imposes the requirement of having to undertake a set up procedure (once)
for each lacquer type used.
1.4 CHANGING THE OPERATING MODE
Unless otherwise requested, Sencon ship each gauge set to operate in
custom channel mode. If your gauge is so set and you wish to change it to
fixed channel mode it is necessary to change a switch setting inside the
gauge. Instructions for gaining access to, and identifying the switch are
given in Appendix 1.
The switch that selects the operating mode is switch 1. With the switch
closed fixed channel mode is selected, with the switch open custom channel
mode is selected. Carefully read all instructions in Appendix 1 before
attempting to change this switch.
NOTE: After changing operating mode it is necessary to perform a
master reset (see section 2.7).