Sentry SBC - Starting and Operating the Controller; Modes of Operation

10 Original Instructions Sentry Equipment Corp
Starting and Operating the Controller
After the sampler and controller are installed, timer setpoints must be veried or changed from the factory preset
values.
1. Press the Setpoint menu button to access the Setpoints menu screen.
2. The Setpoints menu screen lists all the setpoints available for adjustment.
3. Refer to the appropriate appendix for information on the setpoints for your sampler model.
Timers
 NOTE
Timers used depend on sampler type. See appendix appropriate to your sampler.
1. Extend or Sample time: Determines the time the sampler is in the process stream (max 600 sec).
2. Retract time: (not applicable to all samplers) Determines the duration the sample probe is retracted, allowing the
sample to be deposited into the sample container (max 600sec).
3. Cycle Time: Determines the time between samples (max 17:59:59).
4. Delay Time: (not applicable to all samplers) Determines the time before purge/air eject occurs (max 600 sec).
5. Purge Time: (not applicable to all samplers) Determines the time purge/air eject is active (max 600 sec).
6. Park Time: (not applicable to all samplers) Determines the time the sampler is in the Park position (max 17:59:59).
Modes of Operation
The controller operates in two modes, AUTO and REMOTE, with the capability to take a GRAB sample in either mode.
AUTO and REMOTE cannot be selected at the same time.
Auto Mode
 Auto mode is the default mode of operation.
 Press the AUTO key to place the controller in Auto mode.
 All operating commands are initiated at the controller panel.
 Refer to the appropriate appendix or the Service Menu of the controller for the sequence of operation specic to
your sampler model.
Remote Mode
 Press the REMOTE key to place the controller in Remote mode.
 Start and stop commands are initiated from a remote control system.
 Sampling is started and stopped based on an external contact (Terminals TB2 3, 4).
– When the contact is closed, sampling starts.
– When the contact is removed, sampling stops.
– If contact is removed in the middle of a sampling cycle, the sampler completes the cycle and then stops.
– A momentary closure of the remote contact results in a single sample being taken.