Hach Sigma 950 Manuel D'utilisation De Base page 8

The communication features of this instrument include a standard RS232 port and optional internal
modem. Use the RS232 port for remote data transfer, remote programming and to update internal
software using flash memory (RS232 only). The Modbus ASCII protocol is used for SCADA
communication through the RS232 port.
Use InSight data management software to:
• Transmit the data log from the instrument to a PC
• Remotely configure the instrument
• Do other data manipulation using the RS232 port or the optional internal modem
Installation
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Installation requirements for CE marked instruments
Only the flow meter models, part numbers and options in
European Union (EU) according to the CE mark of the manufacturer.
Instruments with a CE mark have use and installation requirements that are subject to the European
Union's Notified Body use limitations that follow.
• The Sigma 950 flow meter must be operated underground in sewers, drain pipes and similar
underground locations.
• The Sigma 950 flow meter must be connected to an AC mains source that is only used for
underground service. The AC mains power service cannot be used for residential locations.
If the Sigma 950 flow meter is operated in locations where there are high levels of RF energy or large
electrical transients, electromagnetic interference can cause performance-related problems.
However, these conditions are not typical in underground in sewers, drain pipes and similar
underground locations.
Table 1 Items approved for use in the European Union
Description
950 combination flow meter with both AV and bubbler sensors
950 flow meter with AV sensors only
950 flow meter with bubbler sensors only
AV sensor options (xx-xxx = depth range, fill option and cable length)
Bubbler sensor options (xxx = cable lengths)
pH sensors with 7.6 m (25 ft) cable length
pH sensors with 15.2 m (50 ft) cable length
4–20 mA output option
12 VDC battery option
230 V, 50 Hz battery eliminator with continental European Union plug
230 V, 50 Hz battery eliminator with United Kingdom plug
230 V, 50 Hz battery eliminator with Italian plug
8 English
D A N G E R
Table 1 are approved for use in the
Item no.
3248
3522
2672
770xx-xxx
88007-xxx
3328
5172
2684
1414
5721400
6244500
6244600