Dynacord DEM 313 User Manual
Page 11

9. Approvals and standards
- The charging units correspond to the following standards:
EN 55014-2
Immunity requirements for household appliances, electric tools and similar electrical
appliances
EN 50082-1
Basic standard for interference rejection; living area, business areas as well as small
enterprises
EN 60065
Safety requirements for mains-operated electronic appliances and related accessories
for house hold use and similar general application
EN 60742
Regulations for isolation transformers and safety transformers
10. Specifications DEM 313
Mains voltage
230 V +10%/-15 % 50-60 Hz
internally solderable to
115 V +10%/-15 % 50-60 Hz
Safety class
I
Rated output voltage
24 V
Voltage adjustment for
battery charging 2.275 V/cell
27.3 V
Tolerance of the output voltage at 20
°
C
± 0.37 %
Temperature coefficient of the charging voltage
-40 mV/
°
C
Ripple at nominal operation
≤
0.1%
Static mains control
at input deviations of +l 0% -15 %
≤
0.05%
Nominal charging current
4 A
Current limitation
approx. 4 A
Standby current at power failure
110 mA
Switching frequency
88 kHz ±l0%
Efficiency
approx. 83 %
Failure detection OVERVOLTAGE
≥
29.6 V
Failure detection at battery LOW VOLTAGE
≤
25.5 V operation mode charging
Failure detection at battery LOW VOLTAGE
≤
22.0 V operation mode discharging
Failure detection at mains low voltage LINE VOLTAGE
165 V ±15% for 230 V ac operation
Failure detection at mains low voltage LINE VOLTAGE
83.5 V ±15% for 115 V ac operation
Switch-off at BATTERY VOLTAGE
≤
19.5 V
Failure detection at CHARGE CURRENT
≤
20 rrA
Operating temperature range
+5
″
C + 40
″
C
Storage temperature
-40
″
C+ 70
″
C
Dimensions W x H x D
483 x 88 x 335 mm
Mounting depth without connectors
300 mm
Mounting depth with connectorsmax.
350 mm
Weight
4.4 kg
Retrofitting kit for DEM 313:
Art.No
NRS 90200 temperature sensor
121950
23