Basler Electric DGC-2020 User Manual
Page 142
Measurement/Metering Units
The user can configure the DGC-2020 to display and report engine oil pressure and coolant temperature
in English or metric units of measure
O
. Engine oil pressure has an additional parameter
P
for Metric
Pressure Units.
Battery Voltage
The nominal voltage
Q
of the starter battery is used by the DGC-2020 to detect and annunciate battery
overvoltage and low or weak battery voltage.
NFPA Compliance Level
The DGC-2020 can be used in an application requiring compliance with NFPA Standard 110. Levels 1
and 2 of Standard 110 are supported
R
. Selecting level 1 or 2 affects DGC-2020 operation in the following
ways:
•
The number of crank cycles is fixed at 3
•
Crank cycle time is fixed at 15 seconds
•
Continuous crank time is fixed at 45 seconds
•
The low coolant temperature pre-alarm setting is fixed at 70°F
Fuel Level
The Function setting
S
allows the selection of four fuel types: Fuel Lvl, Natural Gas, Liquid Propane, or
Disabled. Selecting a fuel type other than Fuel Lvl will disable any fuel level indication, alarm, and pre-
alarm and disable the Fuel Level value on the Engine screen of the Metering Explorer in
BESTCOMSPlus.
The use of a 0 - 10 V or 4 - 20 mA transducer is possible when an Analog Expansion Module (AEM-2020)
is connected. Use the Source setting
T
to select the AEM-2020 analog input tied to the transducer.
Set the maximum and minimum percentage range for the AEM-2020 analog inputs using the Maximum
U
and Minimum percent
V
settings. The maximum and minimum range of the AEM-2020 analog inputs are
set separately. See Programmable Inputs, Remote Analog Inputs, below, for more information.
Power Up Delay
In some cases, the ECU takes longer than the DGC-2020 to power up. The power up delay setting
W
is
used to delay the initial pulsing of the ECU for data on DGC-2020 power up.
Generator Frequency
The generator frequency
X
is defined by the DGC-2020 Style Number (Figure 4-15).
Calculated Rated Data
The calculated rated data parameters
Y
are listed below.
𝑅𝑎𝑡𝑒𝑑 𝑘𝑉𝐴 =
𝑅𝑎𝑡𝑒𝑑 𝑘𝑊
𝑅𝑎𝑡𝑒𝑑 𝑃𝐹
𝑅𝑎𝑡𝑒𝑑 𝑘𝑣𝑎𝑟 = 𝑅𝑎𝑡𝑒𝑑 𝑘𝑉𝐴�1 − 𝑅𝑎𝑡𝑒𝑑 𝑃𝐹
2
𝑅𝑎𝑡𝑒𝑑 𝑃ℎ𝑎𝑠𝑒 𝐴𝑚𝑝𝑠 (3-𝑝ℎ𝑎𝑠𝑒 𝑚𝑎𝑐ℎ𝑖𝑛𝑒) =
𝑅𝑎𝑡𝑒𝑑 𝑘𝑉𝐴
𝑅𝑎𝑡𝑒𝑑 𝐿-𝐿 𝑉𝑜𝑙𝑡𝑠√3
𝑅𝑎𝑡𝑒𝑑 𝑃ℎ𝑎𝑠𝑒 𝐴𝑚𝑝𝑠 (1-𝑝ℎ𝑎𝑠𝑒 𝑚𝑎𝑐ℎ𝑖𝑛𝑒) =
𝑅𝑎𝑡𝑒𝑑 𝑘𝑉𝐴
𝑅𝑎𝑡𝑒𝑑 𝐿-𝐿 𝑉𝑜𝑙𝑡𝑠
𝑅𝑎𝑡𝑒𝑑 𝑆𝑒𝑐𝑜𝑛𝑑𝑎𝑟𝑦 𝑉𝑜𝑙𝑡𝑠 = 𝑅𝑎𝑡𝑒𝑑 𝑉𝑜𝑙𝑡𝑠 �
𝐺𝑒𝑛 𝑃𝑇 𝑆𝑒𝑐𝑜𝑛𝑑𝑎𝑟𝑦 𝑉𝑜𝑙𝑡𝑠
𝐺𝑒𝑛 𝑃𝑇 𝑃𝑟𝑖𝑚𝑎𝑟𝑦 𝑉𝑜𝑙𝑡𝑠
�
𝑅𝑎𝑡𝑒𝑑 𝑆𝑒𝑐𝑜𝑛𝑑𝑎𝑟𝑦 𝑃ℎ𝑎𝑠𝑒 𝐴𝑚𝑝𝑠 = 𝑅𝑎𝑡𝑒𝑑 𝑃ℎ𝑎𝑠𝑒 𝐴𝑚𝑝𝑠 �
𝐶𝑇 𝑆𝑒𝑐𝑜𝑛𝑑𝑎𝑟𝑦 𝐴𝑚𝑝𝑠
𝐶𝑇 𝑃𝑟𝑖𝑚𝑎𝑟𝑦 𝐴𝑚𝑝𝑠
�
4-32
DGC-2020 BESTCOMSPlus
® Software
9400200990 Rev X