— Vartech® DC Electronic Loads
EL-600+ 600 W Programmable DC Electronic Load (150 V / 120 A)
600 W programmable DC load — 150 V / 120 A, CC/CV/CR/CP modes, 4.3-inch LCD, List mode, battery discharge test and RS232C interface.
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About This Instrument
The Vartech EL-600+ is a 600 W programmable DC electronic load with a maximum input of 150 V and 120 A. It operates in Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR) and Constant Power (CP) modes across 9 basic operation modes (CCL, CCH, CVL, CVH, CRL, CRM, CRH, CPV, CPC). A 4.3-inch backlit LCD display with high-speed rotary dial and keypad allows easy programming. The EL-600+ includes List mode (step time 10 ms to 99999 s), Short Circuit test, Battery Discharge Capacity test (up to 3000 Ah, 1 s to 100 h), and full protection — OCP, OVP, OPP, OTP and reverse voltage. RS232C interface for PC control. The EL-600+ has a higher 120 A current rating than the standard EL-600.
Key Features
- 600 W, 150 V max, 120 A max — higher current rating than the EL-600
- CC, CV, CR, CP — 4 basic operating modes across 9 mode variants
- CC accuracy: ≤±(0.1% + 0.1% FS); CV accuracy: ≤±(0.05% + 0.02% FS)
- List mode — programmable step sequences with 10 ms to 99999 s step time
- Battery Discharge Capacity test — up to 3000 Ah, discharge time 1 s to 100 h
- Short Circuit test
- OCP, OVP, OPP, OTP and Reverse Voltage protections
- 4.3-inch backlit LCD with rotary dial and keypad; RS232C PC interface
Technical Specifications
| Maximum Power | 600 W |
| Maximum Input Voltage | 150 V DC |
| Maximum Input Current | 120 A (EL-600+) |
| Operating Modes | CC, CV, CR, CP (4 basic modes; 9 variants: CCL, CCH, CVL, CVH, CRL, CRM, CRH, CPV, CPC) |
| CV Mode Accuracy | Resolution: 1 mV / 10 mV | Accuracy: ≤±(0.05% + 0.02% F.S.) |
| CC Mode Accuracy | Resolution: 1 mA / 10 mA | Accuracy: ≤±(0.1% + 0.1% F.S.) |
| CR Mode Accuracy | Resolution: 100 µΩ ~ 1.6 µΩ | Accuracy: ≤±(0.5% + 0.5% F.S.) |
| CP Mode Accuracy | Resolution: 1 mW / 10 mW | Accuracy: ≤±(1% + 0.1% F.S.) |
| Voltage Read Back | Resolution: 1 mV / 10 mV | Accuracy: ≤±(0.05% + 0.02% F.S.) |
| Current Read Back | Resolution: 1 mA | Accuracy: ≤±(0.1% + 0.1% F.S.) |
| Ripple & Noise | CC: 3 mA / 30 mA rms / p-p; CV: 5 mV rms |
| List Mode | Step time: 10 ms ~ 99999 s |
| Battery Discharge Test | Capacity: up to 3000 Ah; Discharge time: 1 S ~ 100 H |
| Protection | OCP, OVP, OPP, OTP, Reverse Voltage |
| Display | 4.3-inch backlit LCD; rotary dial + keypad input |
| Interface | RS232C |
| Power Supply | AC 110 / 220 V ±10% selectable; 50 / 60 Hz |
| Accessories | User's manual, mains cord; RS232 cable optional |
| Dimensions & Weight | 215 (W) × 89 (H) × 412 (D) mm | Approx. 6.7 / 9 Kg |
Specifications sourced from the official Vartech product catalogue. Download above for the full datasheet.
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