F-900 Instruction Manual 8/14/2017
1554 NE 3
rd
Ave, Camas, WA 98607, USA Phone: (360) 833-8835
46
www.felixinstruments.com
the terminal block are possible, such as controlling ethylene scrubbers or connection to an
external control system.
The F-900 will perform action at the high and low levels, when set. If the concentration of
ethylene rises above the Gas_Hi, the gas will be shut off. If the ethylene concentration is lower
than the Gas_Lo, the gas will be turned on.
Press the up/down arrow to switch between parameters.
Press the right arrow to switch to the column containing the values in
ppb
(parts per
billion).
Use the up/down arrow keys to set the desired level.
Press the left arrow or Save to exit back to the Setup Menu. Any changes made will
automatically be saved.
Enabling
CONTL_OUT
will turn on the standard terminal control, using the output of the
pins to control turning on or off the gas and/or the exhaust fan.
Enabling
CONTL_IN (Clean)
allows use of the analog input pin to supply a voltage to
control the cleaning mode (input signal). This terminal control mode was developed for
using the F-900 with other external advanced control systems. When this mode is not
being used, set to DISABLE.
o
Note: if Setup>Chamber: Chamber In is currently set to Special, enabling
CNTL_IN (CLEAN)
will overwrite Chamber In to Off
.
o
Terminal Connections:
Pin 1: Ground
Pin 10: Control voltage. Control voltage could be applied during
Measure>Monitor Mode to control cleaning mode. Specifically:
0.0-1.0V: Cleaning disable (Closed Loop Off, Chamber In Off)
1.5-5.0V: Cleaning enable (Closed Loop On, Chamber In On)
To connect a gas control to the terminal block of the F-900, first pull off the removable portion of
the terminal block (pull straight out). The piece in the figure below will separate from the F-900.
Slide the wire from what is going to be controlled through the opening for the appropriate pin.
Use a screw driver to tighten and clamp onto the wire, creating a connection. The removable
section of the terminal block is designed to stay with the fan, gas or external control so, if the F-
900 needs to be moved, the terminal block can be disconnected easily. The total power draw of
the F-900 is .5-1.5 AMP, the max of 1.5 is assuming all sensors are installed and running.
Setup Terminals
VALUE PPB
GAS_HI 00000
GAS_LO 00000
CONTL_OUT DISABLE
CONTL_IN (Clean) DISABLE
Содержание F-900
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