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GF 9950-10 Six Channel Transmitter
Pulse Width Modulation
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.
PWM automatically varies the ratio of ON time to OFF time proportional to minimum and maximum range
settings. The relay period is the sum of the time a relay is ON and the time it is OFF.
English, French, German, and Spanish only.
A custom label can be assigned to the relay for ease of identi
fi
cation.
Set MINIMUM value for pulse width modulation.
Set MAXIMUM value for pulse width modulation.
Set time value for one complete pulse cycle (relay ON time + relay OFF time).
Select YES to have the Red Backlight illuminate during relay activation.
Select NO to not have the Red Backlight activated by the relay activation.
Default backlight setting - NO
(ALL) Press
▲
or
▼
to turn relay ON or OFF for testing purposes.
Can also be used to reset or latch/unlatch the relay.
Does NOT reset the Totalizer.
RELAY 1
PWM
MODE
RELAY 1
SE
RELAY 1
C
LABEL
R1 PWM MIN
LPM
A
0.0000
R1 PWM MIN
LPM
10.000
R1 PWM PERIOD
SEC
1.000
RELAY 1
TEST RELAY
RELAY 1 ACTIVATE
NO
RED BACKLIGHT
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