Signal Switching Output Board (P/N 6-02499C); Figure 19: Recorder Connections: Signal Switching Using Signal Switching Output Board - Sentry SPD 5.5.5 Installation And Operation Manual

Sample Sequencer
Signal Switching Output Board (part number 6-02547C) is used in either of two ways: (1) to
commutate, (i.e., switch) an analog signal to eight individual outputs to a recorder or data acquisition
system as shown in the connection diagram of Figure 19, or (2) to provide only dry contact closures to
a recorder to indicate the current active channel as shown in the connection diagram Figure 20. All
wiring to this board may be performed with 22 gauge conductor cable (32 ft. or 10m maximum length)
as follows. CAUTION: Disconnect power to the Sample Sequencer before proceeding.
1. The analyzer 0 - 20 mA (or 4-20 mA) analog output signal is connected in series to the I/O board
and terminals + and - on J1 of the signal switching output board.
2. Connect recorder signals, R1 through R8 on the output board to the corresponding input terminals
of the recorder or data acquisition system.
3. Connect one conductor to any one neutral terminal N on the output board to the (-) terminals of the
recorder. Jumper the recorder (-) terminals together.
4. Install the signal switching output board in slot marked on the Sample Sequencer enclosure as
shown in Figure 17. Install by plugging the board into the corresponding connector of the display
board. (NOTE: The board should be installed such that board components are on the right side as
viewed from the rear.)
FIGURE 19 - Recorder Connections: Signal Switching Using Signal Switching Output Board
SENTRY
Equipment Corp • P. O. Box 127 • Oconomowoc, WI 53066 • 262/567-7256 • FAX: 262/567-4523
Wiring to Switch Analog Signals - Figure 19
Web: www.sentry-equip.com • e-mail: sales@sentry-equip.com
Installation
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