Solinst AquaVent SDI-12, Руководство пользователя

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SDI-12 User Guide for AquaVent
Page 6
1.2 LED Status
The 3500 AquaVent SPX Wellhead contains a multicolour LED.
The Yellow LED flashes whenever the AquaVent replies to a data
recorder command on the SDI-12 network. The Yellow LED does not
flash when it receives a command, only when it replies to a command.
The following will also occur:
Tricolour spin (3 cycles) to indicate a power-on event.
Alternating Yellow/Green for 10 rapid cycles to indicate that AquaVent
communication has been established, the SDI-12 device address has
been set to represent that AquaVent and SDI-12 interface is online.
Alternating Yellow/Red for 10 rapid cycles would instead mean that
communication was NOT established, so the SDI-12 interface has been
brought online using the default device address of ASCII ‘0’. (Check the
batteries and the AquaVent logger connections).
Technical Specifications
Standard Compliance: SDI-12 Protocol, Version 1.3, July 18, 2005, except 'A' command
Maximum Sample Rate: 1 SDI-12 sample every 3 seconds with AquaVent not logging.
+12V Input: 9.6VDC to16.0VDC
Supply Current: Normally peaks at several 10’s of mA, but idles around 30 uA.
SDI-12 Connector Cable Length: 4.5 m (15 ft)
Maximum Vented Cable Length: 150 m (500 ft)
Wellhead Operating Temperature: -20ºC to 80ºC
Wellhead IP Rating: IP 64 (dust and splash resistant)
Table 1-2 SDI-12 Technical Specifications