User manual

Model: EC-GOLD
ECGOLDUM17.DOC Rev: 1.7
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7.0 CONTROLLER SETTINGS SHEET
The factory settings column below lists the typical default settings. The user may change these values at
any time either by the integral DIP switches or via the EC-Gold hand held calibrator. If changed, please
fill in the USER SETTING column for future reference.
PARAMETER DESCRIPTION
FACTORY
SETTING
USER
SETTING
OUTPUT MODE
There are 2 main output modes which may be field
selected:
Analog: the output is proportional to the gas
concentration. The output type may be further selected to
be mA type (4-20mA) or voltage type (2V-10V) – see
Voltage / Current Output setting.
Discrete Voltage Output mode: the output is compatible
with Arjay’s ISA 66RLU/Gas-Alert Alarm system.
As per order
VOLTAGE /
CURRENT OUTPUT
If Analog output mode is selected, then the type of output
may be further selected to be current type (4-20mA) or
voltage (2V – 10V).
Note: if the Output type is RLU discrete voltage, then this
setting MUST be voltage type.
As per order
CALIBRATION
TYPE
Field selectable for either Dual Point, or Single Point.
The Dual Point type zero’s and spans the instrument.
The Single Point type assumes the zero has been
successfully done, and only spans the instrument.
Single Point
ALLOW SELF TEST
The self-test feature only applies to Carbon Monoxide
sensors that have this option.
If the self-test feature is set to NOT to Allow, then self-
test requests are ignored.
As per order
HIGH ALARM
The value in ppm at or above which a High Alarm
condition is entered.
As per order
LOW ALARM
The value in ppm at or above which a Low Alarm
condition is entered.
As per order
CALIBRATION GAS
CONCENTRATION
The calibration gas value in ppm. This value is assumed
by the EC-Gold during calibration. Note: for Single Point
calibrations, this is the only gas used. For Dual Point
calibrations, the first gas is always assumed to be clean
air (0 ppm)
As per order
SPAN VALUE
This value is only pertinent if Analog Output has been
selected. It is the full scale value in PPM at which
concentration the EC-Gold output is at its maximum:
20mA (current type) or 10V (voltage type).
Note: this value cannot be set via the integral DIP
switches. It can only be set via the EC-Gold hand held
calibrator or EC-Gold Central Access Panel.
As per order
NETWORK
ADDRESS
Only required for network applications (where the RS-
485 bus is used).
The Address is used by the EC-Gold calibrator or by the
EC-Gold Central Access Panel to access each EC-Gold
transmitter on a network. Each EC-Gold on a network
must have a unique address number from 0 – 128. Note:
the maximum address value which can be set by the
integral DIP switches is 31. To set values higher than
this, use the EC-Gold hand held calibrator.
As per order