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GF 9950-10 Six Channel Transmitter
United States Pharmacopeia
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.
USP (United States Pharmacopeia) has de
fi
ned a set of conductivity values (limits) to be used for
pharmaceutical water.
English, French, German, and Spanish only.
A custom label can be assigned to the relay for ease of identi
fi
cation.
(ALL) (Shown if LOW, HIGH, WIND IN/OUT, or USP mode)
Hysteresis delays the deactivation of the relay and prevents relay chattering around the set point.
Set the Hysteresis amount (in units of measure from INPUT Mode) to the LOW or HIGH set point values.
Enter USP set points as a percentage below the USP limit.
USP alarm is always a HIGH alarm.
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
USP
MODE
RELAY 1
RELAY 1
LABEL
R1 HYSTERESIS
GPM
0.5000
R1 USP PERCENT
%
10.0
RELAY 1 ACTIVATE
m
NO
A
RED BACKLIGHT
RELAY 1
mA
TEST RELAY
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