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3.4. DS4 Comm Enable/Disable
DS4 will enable or disable the monitor system communication transciever devices.
Disabling these devices will reduce current consumption when the monitor is used
in
a
STAND ALONE
voltage mode application.
DS4 IS HARDWIRED TO
ENABLE COMMUNICATION TRANSCEIVER DEVICES(1-5, 2-3).
3.5. DS5 2 Wire/3 Wire Cell
DS5 is for FACTORY USE ONLY. It is used to match the sensor cell type (2 wire
or 3 wire) for each gas in the MC-4231 series.
DS5 IS HARDWIRED FOR 2
WIRE SENSOR CELL(2-3).
3.6. DS6 Sensor Mode
Jumper DS6 is used to select the sensor output mode. VOL = voltage,
CUR = current.
Note:
The MC-4231-CO may not be used in the Current Mode.
DS6 IS HARDWIRED FOR VOLTAGE MODE(OPEN).
3.7. Address Switches
Rotary BCD switches BS3, BS2 and BS1 set the monitor address for the MC-4000
System. Valid monitor address are between 1 and 255.
3.8. Setup Adjust
Setup Adjust (R15) is used in conjunction with the DS1 Setup Mode switches to
adjust the warning and alarm trip levels and the zero offset value.
3.9. Zero Adjust
Zero adjust (R11) is FACTORY SET ONLY. It is used to match the different
sensor cells to the MC-4231 electronics.
Note: This should not be user adjusted unless a calibration error “E” is
displayed in the left digit of the LCD display during ZERO
calibration of the sensor. See ZERO calibration in the calibration
section 6.1. of this manual.
