KEISOKU GIKEN

ELA-305/ELB-305/ELC-305低電壓多功能電子負載

 

Load section ELA-305ELB-305ELC-305CurrentVoltageInternal min resistance(*9)Internal inductance(Typ)(*9)Min operating voltage(*8, 9)Peak power(*7)20us or less2s or less20s or lessRated powerCurrent range
(Setting range)HMLNominal resolution(*1)HMLAccuracy(*4)HMLVoltage range20V50V85VCurrent range
(Setting range)Current range:HCurrent range:MNominal resolution(*1)Current range:HCurrent range:M Voltage rangeCurrent range
(Setting range)Current range:HCurrent range:MNominal resolution(*1)Current range:HCurrent range:MAccuracy(*2, 4, 6)Voltage range
(Setting range)HLNominal resolution(*1)HLAccuracyResponse timePower rangeCurrent range:HCurrent range:MNominal resolution(*1)Current range:HCurrent range:MAccuracy(*4)Current range
(Setting range)HMNominal resolution(*1)HMAccuracy(*4, 5)Control voltageControl methodLoading modeSetting periodPeriod resolutionOperating modeSlew rate
(Current range)HMLMin load response time(*3)Loading modeMax stepsStep durationDuration resolutionShort current (MAX)Current range
(Setting range)HMNominal resolution(*1)HM

Max rating
60A	30A	12A
120V	300V	500V
17m ohm	67m ohm	250m ohm
250nH	400nH	2uH
1V(60A) / 0.5V(30A) / 0.2V(12A)	2V(30A) / 1V(15A) / 0.5V(7.5A)	3V(12A) / 1.5V(6A) / 0.7V(2.4A)
7200W	9000W	--
800W	800W	--
500W	500W	--
300W
CC mode
0 - 60A	0 - 30A	0 - 12A
0 - 6A	0 - 3A	0 - 1.2A
0 - 0.6A	0 - 0.3A	0 - 0.12A
5mA	2.5mA	1mA
0.5mA	0.25mA	0.1mA
0.1mA	0.05mA	0.02mA
+/- 0.2% of stg. +/- 25mA+Vin/Rin	+/- 0.2% of stg. +/- 15mA+Vin/Rin	+/- 0.2% of stg. +/- 10mA+Vin/Rin
+/- 0.2% of stg. +/- 12mA+Vin/Rin	+/- 0.2% of stg. +/- 6mA+Vin/Rin	+/- 0.2% of stg. +/- 3mA+Vin/Rin
+/- 0.2% of stg. +/- 6mA+Vin/Rin	+/- 0.2% of stg. +/- 3mA+Vin/Rin	+/- 0.2% of stg. +/- 2mA+Vin/Rin
CR mode
0.025 - 200 ohm	0.1 - 800 ohm	0.3 - 2.5k ohm
0.25 - 2k ohm	1 - 8k ohm	3 - 25k ohm
4ms	1ms	333us
400us	100us	33us
120V	300V	500V
0.075 - 600 ohm	0.3 - 2.5k ohm	0.9 - 7k ohm
0.75 - 6k ohm	3 - 25k ohm	9 - 70k ohm
1.33ms	333us	111us
133us	33us	11us
+/- 0.5% of Conv. Curr. +/- 0.2% of f.s. +Vin/Rin
CV mode
0 - 120V	0 - 300V	0 - 500V
0 - 20V	0 - 50V	0 - 85V
10mV	30mV	50mV
2mV	5mV	10mV
+/- 0.2% of stg. +/- 0.2% of f.s.
Fast/Slow (300us/10ms Typ)
CP mode
0 - 300W
0 - 40W
50mW
5mW
+/- 2.5% of stg. +/- 1% of f.s. +/- (VinXVin)/Rin
External control mode
0 - 60A	0 - 30A	0 - 12A
0 - 6A	0 - 3A	0 - 1.2A
10mA	5mA	2mA
1mA	0.5mA	0.2mA
+/- 0.2% of stg. +/- 0.5% of f.s. +Vin/Rin
0 - 10V
Dynamic load mode
Dynamic mode
Switching
CC mode
- 20ms / - 200ms / - 2s / - 20s / - 60s
1us / 10us / 100us / 1ms / 10ms
Continuous, Single
0.2 - 20A/us	0.1 - 10A/us	0.01 - 1A/us
0.02 - 2A/us	0.01 - 1A/us	0.001 - 0.1A/us
0.002 - 0.2A/us	0.001 - 0.1A/us	0.0001 - 0.01A/us
500ns
Sequence mode
CC / CR / CV / CP mode
1024
1ms - 10min
1ms(1ms - 100ms) / 100ms(100ms - 10min)
Short mode
60A	30A	12A
Current limit setting
0.3 - 60A	0.15 - 30A	0.06 - 12A
0.03 - 6A	0.015m - 3A	0.006m - 1.2A
0.3A	0.15A	0.06A
30mA	15mA	6mA
Parallel operation
Master-Slave operation. One master unit can control up to 4 units of slaves of same voltage rating. For example: If the master unit is ELA-305 then ELA-155, ELA-305 or ELA-1005 may be connected as slave unit.

*1 : Nominal resolution: Approximated resolution of the range. / *2 : Conv.Curr: Ideal current value being calculated by [input / set R] / *3 : Min load response time: Minimum time required by the load when setting slew rate. / *4 : Rin: ELA-155 : 100kohm(typ) ELB-155 : 200kohm(typ) ELC-155 : 1500kohm(typ) / *5 : External controlsetting accuracy: Setting accuracy is defined when external control voltage of 10V is fed. / *6 Setting accuracy in CR mode is valid when applied 10% or more voltage of the voltage range. / *7 : It may vary in accordance to the internal temperature. / *8 Minimum operating voltage vary according to the current value. / *9 At rear loading terminals.

Measuring section ELA-305ELB-305ELC-305RangeHLResolutionHLAccuracy(*1)Measuring time(*2)Range(*3)HMLResolutionHMLAccuracy(*1)H, MLMeasuring time(*2)Measuring method(*4)Measuring time(*2)

DC Voltage
120.00V	300.00V	500.00V
20.000V	50.000V	85.000V
10mV	10mV	10mV
1mV	1mV	1mV
+/- 0.05% of rdg. +/- 0.05% of f.s.
Approx. 100ms
DC Current
60A	30A	12A
6A	3A	1.2A
0.6A	0.3A	0.12A
0.5mA	0.5mA	0.5mA
0.1mA	0.1mA	0.1mA
0.1mA	0.1mA	0.1mA
+/- 0.2% of rdg. +/- 0.2% of f.s.
+/- 0.2% of rdg. +/- 0.5% of f.s.
Approx. 100ms
Power
Calculation by [Voltage X Current]
Approx. 200ms

*1 Guaranteed for 6 months at 23 +/- 5C, <70% RH / *2 Measurement time when set at same measuring mode and range. / *3 Current measurement range depends on load setting range. / *※4 Absolute value of the measurement.

General ELA-305ELB-305ELC-305Loading terminalsRated AC inputPower consumptionOperating temperatureCooling systemDimensionsWeightGP-IBUSBExternal control voltageOver current protectionOver power protectionOver voltage alarmTemperature protectorReverse connection alarm

General

on front & rear panel

AC100 - 240V +/- 10% 50/60Hz

< 45VA (When in AC100V)

5 - 40C

Forced cooling fan

215(W) X 128.6(H) X 420(D) excluding projected part

Approx. 10Kg

Interface

Conforming to IEEE488.1

Conforming to USB1.1

0 - 10V

Protection, Alarm

Protect load section by limitting the current.

Protect load section by limitting the power.

Generate alarm when over voltage is applied.

Generate alarm and cut off the output when overheaded.

Generate alarm when reverse voltage is applied.

* Noted that the alarm function does not protect the instrument. Remove the cause of alarm to protect the instrument.

 ELA-305ELB-305ELC-305Output(*1)Output voltageCC1CC2 - CC16Current range(*2, 3)H, MLOutput resistanceAccuracy(*4)H, ML

TRIG OUT
Photo coupler output
+5V (Typ)
0V (Typ)
CURRENT MONITOR
1V / 60A f.s.	1V / 30A f.s.	1V / 12A f.s.
0.04V / 0.6A f.s.	0.04V / 0.3A f.s.	0.04V / 0.12A f.s.
50 ohm
+/- 1% of Conv.Volt. +/-1 % of f.s.
+/- 5% of Conv.Volt. +/- 3% of f.s.