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-RS485. RS485 serial interface
The default RS232 port may be converted to an RS485
port instead. The RS485 port uses the 4 “Custom” terminals
,
with terminals available for SW12V and G (Power control) and RS485_A and RS485_B. The RS485 adapter can be
supplied as a kit to upgrade existing units. For instructions see:
https://www.measci.com/wi-rs485.pdf
-STROBE. High visibility alarming
Integrated into the top of the Ai1 the strobe provides visual indication of
alarm conditions. Powered from the internal SW12V output or using the -
SWITCH, -RELAY or -LATCH power switching options.
-SIREN. Audible alarming
Integrated into the bottom of the Ai1 the siren provides a strong 120dB
audible alarm under program control. Powered from the internal SW12V
output or using the -SWITCH, -RELAY or -LATCH power switching options.
The siren is mounted in a variety of fixed orientations.
-PUMP. Peristaltic pump
Integrated into the bottom of the Ai1 the peristaltic pump may be used for
a variety of applications, including the collection of a water sample
through program control. Powered from the internal SW12V output or
using the -SWITCH, -RELAY or -LATCH power switching options. The pump
operates at up to 500mL/min flow rates.
-SOA. EXO Signal Output Adapter (SOA)
Integrated inside the Ai1 with 4 wire connection using the “Custom” terminals. Often combined with
the-6F
bulkhead connector supplied prewired into the SOA ports. The SOA is wired to allow both the EXO2 and EXO3
sondes to be used. Uses SDI12 interface configurable to either C1 or C2 port.
-COMPASS. Internal compass
Useful for rotating platforms such as buoys to provide orientation correction for wind and current instruments.
Uses SDI12 interface
-ACCEL. Internal accelerometer for tilt measurement
Dual X-Y analog measurements for tilt or movement detection. Uses two internal analog ports.
-BARO. Internal barometer
Integrated into the terminal area with a vent tube through the bottom plate. The internal analog barometer
provides barometric pressure corrections for calculating level from absolute and differential pressure sensors.
-4TO20. 4 to 20mA output option
Converts Vx1 excitation port from 12-bit 0-5V to 4-20mA output with integrated conversion module. The output
model features high precision trimpots for setting the zero and span with the supplied program converting from any
engineering unit values into the 4-20mA output. The overall accuracy is approximately 1%.
