GSi GSS-U, Руководство пользователя

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4.1.7 Digital Display Timer T-1 (Standard)
As arranged for use in this system, the timer operates in the DOWN & STOP mode. When the AUTO mode is
selected, the illuminated display resets to the value dialed in to the Three Digit Preset. Immediately, the timer
begins timing down. When the illuminated display reads all zeroes (000), the timer has "timed out" and initiates a
sampling cycle. The auger tube rotates once to collect a sample, and the auger rotates to empty out the sampler.
When the auger motor is energized the timer T-1 is reset (powered off). When the motor stops, the timer display
resets to the preset value and another timing interval is initiated. If the controller is shut off or the mode switched
from AUTO to MANUAL, the timing cycle is terminated. When power is restored or the AUTO mode is again
selected, the display is reset to the preset value and another cycle begins. NOTE: A new timing cycle can be
initiated ONLY after the sampling cycle has completed.
A. External Settings
1. THE DISPLAY:
The high intensity blue fluorescent display consists of three digits and decimal point (if decimal is set
in tenths or hundredths position). Also, there is a blinking Timing Bar and a special Time-Out symbol.
The Timing Bar appears to the right of the digits and blinks once every second during timing. The
Timing Bar shows quickly that the timer is actively timing especially when the digits do not change
rapidly as in the "hours" ranges. When the delay relay is energized at time-out, a triangular Time-Out
symbol appears to the left of the digits. The Timing Bar blinks noticeably faster at time-out.
2. SETTING SWITCHES:
The three digits are set with the rotary switch knobs located beneath each digit. These knobs can be
rotated in either direction (CW or CCW), and they are "pull" removable if digit set security is desired.
Changing one or more digits, during timing, will instantly be reflected by an equivalent change in the
timer's display. Setting all three digits to zero will cause instant time-out of the timer.
B. Internal Settings
THE 365 DIGITAL DISPLAY TIMER MUST BE REMOVED FROM ITS HOUSING TO ALTER ANY OF
THE FOLLOWING SETTINGS.
1. TIME RANGE:
Decimal Point Location can be changed with the white plastic lever mounted behind the front face of
the timer. This lever moves into three positions. With finger force you can change its position and at
the same time observe the front of the timer. NOTE - this procedure sets the decimal point
electronically as well as visually.
Time Units (Sec/Min/Hr) are set by moving a small width metal arm in a slotted arc on the side plate
nearest to the units (Sec/Min/Hr) window. By depressing this arm slightly with a pencil or pen point, it
can be moved to a new position. The time units physically change in the timer's face and the timer is
electronically switched to the new units as well.
2. LINE FREQUENCY:
To set the proper line frequency, connect the jumper wire to either the 50 HZ or 60 HZ pin. These
pins are clearly marked on the side of the timer.
NOTE:
THE TIMER CHASSIS AND THE HOUSING ARE POLARIZED SO THAT THE CHASSIS CANNOT
BE INSERTED INTO ITS HOUSING UPSIDE-DOWN. IF THE TIMER IS FORCED INTO THE HOUSING
UPSIDE-DOWN DAMAGE WILL RESULT.