NewMar Centurion II Power System Installation & Operation Manual page 15

DC System Commissioning Check List
Note that the values in the following check-boxes are for a 48V nominal system, and are for
example only. Values for a 24V system are proportionately lower.
This check-list can be altered and printed off for use as required.
Site Name:
Tests Without Batteries Connected
Check Float Voltage
Check Load Current
Alarms:
Voltage thresholds can either be checked using an external power supply, or by
adjusting the SM36 float voltage 0.1V above (or below for the low voltage alarms). It
is recommended to have the batteries disconnected.
1. Adjust the supply/float voltage to 55.7V & observe the "High Float" alarm.
2. Adjust the supply/float voltage to 57.7V & observe the "High Load" alarm.
3. Adjust the supply/float voltage to 52.7V & observe the "Low Float" alarm.
4. Adjust the supply/float voltage to 46.9V & observe the "Low Load" alarm.
High Load Volts (urgent)
High Float Volts (non-urgent)
Low Float Volts (non-urgent)
Low Load Volts (urgent)
Depending on the test load available, it may be necessary to adjust the High Load
Current alarm threshold down to suit. For example, with the 70A test load, adjust the
High Load Current threshold (use SM36 Config. software, click on the
"Alarms/(Levels)") to 60A. Then simply apply the 70A load and observe the alarm
change state.
Once the test is complete, be sure to rest the High Load Current to its previous value
(or check with the customer for the correct value they require).
High Load Current (urgent)
Temperature alarm tests are performed by heating up (using a heat gun or other
source) and cooling down (using an aerosol can of freeze, or a tub of ice) the
temperature sensors. Note that when the Battery Condition Monitor is used, there is
one sensor per battery string. The SM36 uses the average of these temperatures as
the "Battery Temperature". Therefore, all the sensors need to be heated / cooled at
the same time.
Battery Temperature High (urgent)
• Phone: 714-751-0488 • E-mail: techservice@newmarpower.com
DC S C C
YSTEM OMMISSIONING
Measured/
Setting
Meter:
Meter:
Newmar • PO Box 1306, Newport Beach, CA 92663
-L
HECK IST
Date:
Results
57.6V
55.6V
52.8V
47.0V
°C
14
V
 / 
A
 
/
V
 / 
V
 / 
V
 / 
V  
/
A  
/
 
/