YSI P 700 IQ Analyzer - Manual (Page 97)

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P 700 IQ
Measuring mode cannot
be set
IQ S ENSOR N ET cable towards
the P 700 IQ too long (voltage
drop too great)
Install an additional power
supply module (MIQ/PS) in the
vicinity of the sensor
Electrical connection between
power supply module and
P 700 IQ is interrupted Check the cable connection
step-by-step starting with the
power supply module (MIQ/PS),
and replace defective cable sec-
tions
Check the contacts on the MIQ
modules (stack mounting).
Clean any dirty contacts. Care-
fully bend back contact springs
that have been pressed flat or
bent (pay attention to sufficient
spring tension)
External electrical power supply
disturbed Check the power supply,
check the maximum load
Cause Remedy
Cause Remedy
P 700 IQ is not stopped Stop the
P 700 IQ (see section 5.3.2,

69).