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Sample Sequencer
Installation
SENTRY Equipment Corp • P. O. Box 127 • Oconomowoc, WI 53066 • 262/567-7256 • FAX: 262/567-4523
Web: www.sentry-equip.com • e-mail: sales@sentry-equip.com
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FIGURE 22 - Recorder Connections Using Remote Track & Hold
Output Board(s) & Signal Switching Output Board
Remote Electronic Track & Hold Boards (7-00839A)
are used in conjunction with signal switching
output boards to output individually isolated 0-20 mA or 4-20 mA signals to recorders or other data
acquisition systems. The advantage over using the plug-in type is that alarm contacts are now
available from the signal switching output board. One may use as many remote electronic track & hold
boards as desired. Figure 22 shows how to connect the board.
Wiring to the Remote Electronic track & hold Board - Figure 22
1. The analyzer 0-20 mA analog output signal (or 4-20 mA) is connected to the Sample
Sequencer I/O board terminals J4 + and - in series with the electronic track & hold board
terminals TB2 - 1 (+) and TB2-2 (-). Use 18-24 AWG cable. (See Appendix H to configure for
voltage inputs.)
2. Connect the appropriate J1 terminals on the Sample Sequencer output board to TB2-4 through
TB2-8. Use 18 to 24AWG.
3. Connect the loop output terminals TB3, TB4, TB5 and TB6 on electronic track & hold board to
the appropriate recorder input channel. Use 18-24 AWG.
4. Connect line power to terminals TB1-H and TB1-N. (The hot terminal is left
of neutral.)
Note: The board is configured for 110/120 VAC. If 220/240 VAC operation is required, follow
the Appendix C procedure to configure for 220/240 VAC.