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Sample Sequencer
Specifications
Display: Red alphanumeric LED read-out display of channel number, time, alarms, analog signal and
station number. Eight red LEDs for point number indication and alarm annunciation.
Removable sample name tag.
Case: Material: Noryl; NEMA-4X on face-plate with NEMA 12 rear cover. Option: NEMA 4X
backplate for surface mounting. 5.35" x 5.35" x 6.26" deep.
Mounting: Panel or surface mount.
Ambient Temperature: 0-60C; RH 90% max. non-condensing at 40 C max.
Shipping Weight: 5 lbs (2.3 Kg)
Specification for Valve Output Board
Purpose: The valve output board controls contacts which supply power to solenoid valves.
Inputs: Logic-level signals from Sample Sequencer
Number
of Points: 8
Relays: DPDT sealed relays, contacts rated for 250 VAC, 220VDC maximum operating voltage.
Maximum switching capacity 30W, 62.5 VA for inductive loads.
Point number
indication: Nine red LEDs on circuit board with point number silkscreened on board. One LED is for Off
status and eight LEDs are for point number indication.
Enclosure (optional for remote mounting): NEMA 4X , IEC 529, IP 67 with knockouts.
Specification for Signal Switching Output Board
Purpose: The output relay board is used to switch analyzer 0-20 mA or 4-20 mA signals provide dry
contact sample point number indication. The board includes alarm contacts for normally-open
commutated alarm indication.
Inputs: 0-20 mA or 4-20 mA signal from analyzer (if signal switching)
Number
of Points: 8
Relays: DPDT sealed relays, contacts rated for 250 VAC, 220VDC maximum operating voltage.
Maximum switching capacity 30W, 62.5 VA for inductive loads. The alarm contacts are
normally-open dry contacts which may be powered by field voltage (less than 30 VDC and 0.5
A) from annunciator. In lieu of this standard alarm set-up, the board can be reconfigured to
supply 6 VDC to remote devices, i.e., relay coils, to accommodate required high voltage alarm
requirements. (See Appendix A.)
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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