53
GF 9950-10 Six Channel Transmitter
Timer
When the TIMER relay source is selected, the time can be
selected using Period or Weekday modes. Both relay modes
work directly with the time settings and formats that are entered
at start up or adjusted in the options menu. The relay is normally
open until the speci
fi
ed time is reached, at which time the relay
is closed, triggering the relay for a speci
fi
ed duration. The "Hold
while" feature allows the user to hold the current loop output(s)
at the present value and deactivate relays that are associated
with the measurement channel(s) for the speci
fi
ed recovery time.
•
Period Mode lets the user set a periodic interval, in days,
hours or minutes, at which the relay will activate. A First
Start screen lets the user set the day and time for the Period
Mode to begin.
•
Weekday Mode lets the user speci
fi
c the days of the week,
Sunday, Monday, Tuesday, Wednesday, etc., at which the
relay will activate. A Start Time screen lets the user set the
time of day for the weekday activation. Weekday Mode does
not have a Start Delay parameter.
Relay Period Mode
Activation
Duration
Activation
Duration
Activation
Duration
Recovery
Time
Recovery
Time
Hold measurement
during activation
and recovery
Hold measurement
during activation
and recovery
^
Time
...
^
Period 1
Period 2
Relay Weekday Mode
Sunday, Tuesday and Thursday activation
Activation
Duration
Activation
Duration
Activation
Duration
Recovery
Time
Recovery
Time
Hold measurement
during activation
and recovery
Hold measurement
during activation
and recovery
^
Time
...
^
Sun
Period 2
Mon
Tue
Wed
Thu
Fri
Period 1
Caution:
If HOLD WHILE RELAY # ACTIVE setting is changed while an Activation or Recovery is in process, the
setting will be applied after the cycle is complete. To apply the change immediately, cycle power to the 9950.
RELAY Menu
(ALL) Select source for each Relay 1 - 4 (relay base unit) or RELAY A, B, C and D (external 8059 relay
module). Choose PRIMARY (CH 1-6), SECONDARY (CH 1-6), BINARY 1 - 4, DERIVED FUNCTION 1 - 4,
TIMER, or MULTIPLE. Secondary Values are only available for pH, Conductivity/Resistivity, Level, Salinity
and Dissolved Oxygen. Derived Functions are only available when Derived Functions (CH 1-4) are enabled in
the OPTIONS menu.
(ALL) Select the desired mode of operation to switch the Relay state (ON / OFF). Modes avaliable OFF, LOW,
HIGH, WINDow IN, WINDow OUT, PROP PULSE, VOL PULSE, PWM, TOTAL, USP and ERROR. (Refer to
page 18, Relay Modes). Default = OFF. When MODE is set to ERROR, relay energizes if sensor problem is
detected on any channel. ON DELAY delays the energizing of the relay until after the programmed delay time.
(TIMER) Allows the relay to be enabled based off either a PERIOD of time during the day or WEEKDAY to
enable the relay based on a speci
fi
c day during the week.
TIMER in PERIOD mode will allow the user to select a unit of time to enable the relay.
English, French, German, and Spanish only.
A custom label can be assigned to the relay for ease of identi
fi
cation.
Select period units in MIN (minute), HOURS, or DAYS, which the relay will automatically enable.
Enter the PERIOD time which would continuously cycle ON the relay in MIN (minute), HOURS, or DAYS.
Relay source display allows operator to scroll thru relay 1 -4 on base unit and A-D on the external relay module.
External relays that are located in the 8059 External Relay module are limited to the basic relay modes as shown in the chart.
RELAY 1
CH 1 PRIMARY
SOURCE
RELAY 1
OFF
MODE
Timer - Period
RELAY 1
m
TIMER
A
SOURCE
RELAY 1
m
PERIOD
A
MODE
R1 PERIOD
0
UNITS
MIN
R1 PERIOD
MIN
10
RELAY 1
RELAY 1
LABEL
