Sentry Sample Sequencer 6 - Page 17

Sentry Sample Sequencer 6 Controller 17
Connections from the Analyzer(s)
Referencing Figure 10, analyzer connections include:
 4–20mA output signals
 analyzer alarm (typically a loss of ow or system failure alarm)
 end-of-batch signal for batch analyzers
 calibration signal for continuous analyzers
Use a 22 AWG multiple twisted pair shielded cable similar to Belden 9512 for each analyzer connected. This allows the
signals to be connected from each analyzer to the sequencer with one cable (seeFigure 9).
Analog Outputs from the Sequencer (Track and Hold)
Analog outputs (Track and Hold, 4–20 mA) are created for each sample being sequenced through the analyzer(s).
 Outputs provide individual sample line data acquisition for local or remote indication.
 Connections may be used with a recorder or in situations where analog I/O at the receiving device is limited.
Use a 22 AWG 4 pair twisted pair shielded cable similar to Belden 9514 for wiring to each removable terminal block.
Maximum load is 400 ohms. (See “Specications” on page 6 for additional details.)
Digital Outputs from the Sequencer
The Sample Sequencer 6 has 16 sinking digital outputs to provide point indication for sample being analyzed:
 eight (8) per I/O board
 four (4) replicated analyzer alarms
 four (4) point indication
Use a 22 AWG multi-conductor shielded cable similar to Belden 9423 for wiring to each removable terminal block.
Valve Output Connections
The valve outputs of the Sample Sequencer 6 output 12 or 24VDC, and are intended for use with the Sentry Manifold
Sample Valve. Other manifold valves may be used; however, additional hardware such as interposing relays may be
required.
Use an 18 AWG multi-conductor shielded cable similar to Belden 9409 for wiring to each solenoid valve used. Typical
valve connections are shown in Figure 10.
Summary of Wiring Recommendations
Power cable Volex 19348 or equivalent
Connections from the analyzers Belden 1033A or equivalent
Valve output connections Belden 9316 or equivalent
Analog outputs from the Sample Sequencer 6 Belden 1033A or equivalent
Digital outputs from the Sample Sequencer 6 Belden 9316 or equivalent