American Magnetics 430, Инструкции по установке, эксплуатации и обслуживанию

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R
EV
9 195
A
MERICAN
M
AGNETICS
, I
NC
. A
PPENDIX
: LH
E
L
EVEL
/ T
EMP
C
ONNECTORS
LH
E
L
EVEL
/ T
EMP
C
ONNECTORS
The two 9-pin D-sub male LHe Level / Temp Connectors are identically
wired and connected pin-for-pin internally.
WARNING
Although the LHe level sensor connector terminals are
isolated from earth ground and therefore touching one
terminal is not hazardous, the voltage between terminals is
at a hazardous potential if an AMI Liquid Helium Level
Instrument is connected and energized. The LHe level
sensor pins are designed for use with an AMI LHe sensor
and the wiring for the sensor is to have no live parts which
are accessible. Conductors connected to its terminals must
be insulated from user contact by basic insulation rated for
150 VAC (Category I).
LHe Level / Temp Connectors Pin Definitions
Pin Function
1 LHe Sensor I+ (Red)
2 Temperature Sensor I+ (Red)
3
Temperature Sensor V
−
(Yellow)
4
Temperature Sensor I
−
(Black)
5 Temperature Sensor V+ (Blue)
6
LHe Sensor V
−
(Yellow)
7
LHe Sensor I
−
(Black)
8 LHe Sensor V+ (Blue)
9 not used