Teledyne 6712FR Refrigerated Sampler Extended Programming, Bottle Full Detect, Event Marks

6712FR Refrigerated Sampler Section 5 Extended Programming

Bottle Full Detect

BOTTLE FULL DETECT?

YES NO

Adjusting the Display

Backlighting

BACKLIGHT ALWAYS OFF

TIMED BACKLIGHT

CONTINUOUS BACKLIGHT

Event Marks

EVENT MARK SENT FOR:

EVERY SAMPLE

COMPLETE SAMPLES

Bottle Full Detection – The sampler can detect a full bottle condition when collecting samples in a single bottle (composite sampling). When the sampler detects a full bottle, it stops the sampling routine.

A BOTTLE FULL condition will also stop a sampling routine that is set to RUN CONTINUOUSLY.

The Bottle Full Detect screen allows you to enable or disable this feature. Selecting “YES” enables the sampler to detect a full bottle and stop the sampling routine. Selecting “NO” disables this feature. The Bottle Full Detect setting is part of the sam- pling program. Because it is a program setting, full bottle detection can be enabled or disabled for each of the four extended programs. If the Bottle Full Detect setting is critical to your sam- pling program, always check this Software setting after you select a different Extended Program.

This feature relies on a post-purge after each sample. When using the Bottle Full Detect, make sure that post-sample purges greater than 100 are used.

Bottle Full Detect is always disabled in the Standard Pro- gramming mode.

Display Backlighting – The display has a backlight that is adjustable so that the backlight is always off, timed or always on.

In the timed backlight mode the sampler turns the backlight off after detecting no key strokes within 60 seconds. Any keystroke (except ON-OFF) turns the backlighting on again. In this mode the backlight must be on before the sampler accepts a menu choice or number entry. If you press a key and a screen does not respond, it is because the keystroke turned the backlight on.

It is recommended that you use either BACKLIGHT ALWAYS OFF or TIMED BACKLIGHT when using a battery.

Event Marks – The sampler generates an event mark at each sample event, sending it through the flow meter connector to a connected instrument. The event mark may also control an external device; a connected solenoid relay, for example. When using the event mark for a data logger or to control external devices, you may need to adjust the mark by changing the factory settings.

The event mark is adjustable through the software setup screens. You can set up the sampler to generate an event mark for EVERY SAMPLE or for COMPLETE SAMPLES.

If you select COMPLETE SAMPLES, the sampler sends a three-second pulse only after it successfully collects a sample. The sampler will not send an event mark if an error occurs, such as “No Liquid Detected.”

If you select EVERY SAMPLE, the sampler will send an event mark every time a sample is initiated. The event mark signal can be a:

• 3-second pulse at the beginning of the pre-sample purge.

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