Thermo Scientific PARTISOL 2000, Руководство по обслуживанию, Страница: 87 / 96

Service Manual, Partisol Model 2000 Air Sampler
A
PPENDIX
A: H
ARDWARE
C
ONNECTIONS
P
AGE
A-1
Revision B.000
Appendix A: Hardware Connections
The Partisol Model 2000 Air Sampler contains three connectors for communicating
analog and serial information with external devices:
User Output This 4-pin connector, located on the back panel of the
sampler, transmits an analog voltage level in accordance
with the currently active sampling station and existence of
any status conditions. The pin layout, as viewed from the
back of the enclosure, is shown in Figure A-1 and is
defined below:
Pin 1 Cable shield
Pin 2 Ground
Pin 3 Analog voltage (0-5 VDC)
Pin 4 Not used.
Anemometer This 6-pin connector, located on the back panel of the
sampler, connects the sampler to a wind vane/anemom-
eter
or to an external device, such as a data
logger that provides a 0 to 5 VDC control signal to pin 1. The
pin layout, as viewed from the back of the enclosure, is
shown in Figure A-1 and is defined below:
Pin 1 Wind direction (or control) analog input
(0-5 VDC: 0-50 m/sec (0-180 km/h))
Pin 2 Wind speed analog input
(0-5 VDC: 0-360°)
Pin 3 +24 VDC output
Pin 4 Ground
Pin 5 Cable shield
Pin 6 Static ground.
RS-232 This 9-pin connector, located on the keypad panel of the
sampler, allows two-way serial communication between
the hub and an external device. The 9 pins in the RS-232
connector are defined in the following manner:
Pin 1 CD Pin 6 DSR
Pin 2 RXD Pin 7 RTS
Pin 3 TXD Pin 8 CTS
Pin 4 DTR Pin 9 RI.
Pin 5 GND