Model 801 EM Current Meter
Page 16
© 2016 Valeport Ltd
4.8. Analogue Output [Factory Fit Option]
The analogue output is factory set to p/- 5v for the range +/- 5 m/s. The voltage is derived
from a D/A from the last updated average velocity figure. Alternatives analogue outputs are
available including 4-20mA where the Control Display Unit provides the power for the 4-20mA. The
wiring schedule for this is given in the second table.
The analogue output is made available from a data lead which has analogue out. A mating 6
way connector [LMH 06F 10 06 PN] is provided to enable users to terminate their own cable to this
connector.
Connection details of the Y cable are:
CDU End
Function
Analogue Output
6 way female MilSpec bulkhead
connector
LMH 07A 10 06 SN [sockets]
6 way male Milspec connector
LMH 06F 10 06 PN [pins]
Pin A
Signal Ground
Socket A
Pin B
Signal
Socket B
These two are connected together in the mating connector. This “senses” that external DC is
being applied.
Connection details of the 6 way bulkhead connector for a 4-20mA output are:
CDU End
Function
Analogue Output
6 way female MilSpec bulkhead
connector
LMH 07A 10 06 SN [sockets]
6 way male Milspec connector
LMH 06F 10 06 PN [pins]
Pin A
GROUND - 4/20 Ma
OUTPUT
Pin A
Pin B
CURRENT SINK
(SIGNAL OUT) - 4/20
Ma OUTPUT
Pin B
Pin C
+20VDC SUPPLY -
4/20 Ma OUTPUT
Pin C
Pin D
RS 232 IN TO UNIT
Pin D
Pin E
RS 232 SIG GND
Pin E
Pin F
RS 232 OUT FROM
UNIT
Pin F
