Campbell Scientific CVS4200 / BVS4300 Stationary Samplers - Manual (Page 31)

CVS4200 / BVS4300 Stationary Samplers
TABLE 6-4. Controller Specifications
SAMPLE
INITIATION Disabled No sample initiation.
Interval Time Adjustable up to 999 hours, 99 minutes.
Pulse Count Adjustable, up to 9,999,999.
4-20mA Adjustable, up to 9,999,999 (4 to 20 mA = 0 to 100 pulses/min).
External Contact Momentary, 25 ms dry contact closure.
PROGRAM TYPE Composite Terminate after up to 9,999,999 samples.
Multi-Composite Adjustable, up to 99 cycles per bottle.
Consecutive Adjustable, up to 9 bottles per cycle.
Daily Cycle Adjustable, up to 9 bottles per day.
Timed Step Adjustable, up to 99 hours, 99 minutes per step.
CLOCK Real Time Clock Real time operating system.
PINCH VALVE Sample release Adjustable, normally open / normally closed.
PURGE CYCLE Draw and purge time Adjustable, 1 to 99 seconds.
SUCTION CYCLE Variable Adjusts automatically to double the value of the purge time
setting or until liquid contacts level electrode in metering
chamber.
Vacuum System pressure range is –14 to +20 psi, which can be shown
on the Optional Pressure Gauge.
ALARM OUTPUTS Independent Container Full (Latched. Any key resets. NPN*)
Sample Fault (Latched. Any key resets. NPN*)
Cycle Abandoned (Pulsed. NPN*)
*NPN (sinking) – see Technical Appendix for details.
STATUS OUTPUTS Independent Sample Taken (DC relay driver, sinking)
DIRECT
FUNCTION KEYS Manual Sample Samples manually when pressed twice. Does not interrupt
program.
Manual Purge Purges system during second press as long as button is pressed.
Manual Bottle
Advance Moves distributor arm to next bottle.
Restart Re-initiates program when pressed twice.
AVAILABLE
DISPLAYS Real-Time Clock
Process Timing Elapsed, remaining.
Process Totals
Pulse Counting Internal/external.
Event Response With time stamp.
Multi-Level
Descriptions
Flashing Text
AUTOMATIC
DISPLAYS Container Full Sample program complete.
Fault Program not completed.
Power Interrupt –
Program Resumed
Alternating Time
Stamp
Cycle(s) Abandoned
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