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MEASURING POINTS OF BKS AND OXS
17 - 1
ETC00781(1) Series 100 e 10/2001
Rosemount Analytical
17. Measuring Points of BKS and OXS
17.1 Measuring points of BKS
All measuring points are measured against
ground (X 11 / X 28 or X 29) !
17.1.1 Supply Voltage + 6 V
Measuring point: X 14
Measuring device: DVM
Signal: + 6 V DC (+10 / -200 mV)
(adjust with Potentiometer R 90, if necessary)
Failure: No signal
Possible reasons: a) Voltage supply
is absent.
b) Voltage supply < 9 V
or polarity reversal
c) BKS faulty.
17.1.2 Reference Voltage positive
Measuring point: X 10
Measuring device: DVM
Signal: + 5,535 V DC (± 60 mV)
Be sure to observe the safety measures !
MEASURING POINTS OF BKS
Fig. 17-1: PCB “BKS”, measuring points
(principle drawing)
Front panel
LB 1
X 11
X 10
X 12
X 14
X 16
X 18
X 28
X 29
X 25
U1
U2
U3
1
1
1
X 27
X 8
X 9
1