ZS, ZSLC, ZSLV Electronic DC Loads
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—–—–– Description ——––— —–—––—– Features —–—–– With our many years of experience, we have optimized the electronic loads of the ZS series for practical use in laboratories, manufacturing and quality control. Power: Voltage: Current: Operating Modes: Besides the air-cooled version, we also offer high-performance, liquid-cooled variants. The devices are produced in five voltage classes: 60V, 120 V, 300V, 600V and 800V. The power spectrum includes models from 500W up to 28,800W and currents up to 2,700A. On request, we manufacture units with higher power. Because of the high current ranges,...

Devices with 3 or 4 switchable ranges i\r£~^r are particularly flexible in application

Time Setting OV tail currMi martinet vnit.Tgo PHW Limit Static Dynamic Extern B«mof« Operating Modes Operating Modes The ZS series electronic loads support the four operat- ing modes constant current, voltage, power and resis- Depending on the operating mode, a limit value can in addition be set for maximum permissible current Full/Reduced Setting and Presetting Function To increase the resolution, each device has in addi- tion to the full setting range a setting which is reduced to 1/3 of the rated current. The load can be preset without being connected to the unit under test. In this case...

————–———–—––——— Features ————–————–——— Safety All units working at touchdangerous voltages are supplied with a touch protection cover for the input terminals. Analog Monitor Outputs Analog measuring signals from 0 to 10V are available for voltage, current and power. The GND connections may float ±2V against the negative load input. Full galvanic isolation is available as option(ZS06). Cooling The devices are air-cooled*. To minimize operating noise, control of the fans depends on power and current. To better exploit the maximum possible overload, the fan can be set to full speed. Touch...

Data Interfaces The plug-in interfaces provide additional or extended • Settings with 1 6 bit resolution • Measuring function for voltage, • Programmable load profiles • Dynamic operation with variable current rise • Measurable data storage • Trigger functions • Use of provided software tools and LabVIEW drivers Option ZS01 extends the device with an RS232 inter- face and a USB connector (as Virtual COM Port). The programming is in SCPI. A 2m RS232 cable is in- cable is included, but no GPIB cable. GPIB Interface A device with existing RS232 interface (Option ZS01) may be updated to GPIB...

Hardware Extensions Galvanically isolated Analog Interface ]) If there are potential differences between GND of the load and the signals at the Analog I/O connector, the standard Analog I/O card can be exchanged for an isolated version. All measuring and controlling signals are connected via isolating amplifiers and opto- couplers. The card is pin compatible with the standard The isolation voltage is 500VDC against Input -. In order to control external equipment, the load can be upgraded with the Power I/O Board. 8 relay contacts (make contact 125V/1A) can be triggered and 8 logic inputs...

-Programming Functions- • SCPI Programming • Settings with 16-bit resolution • Measuring function for current and voltage • Programmable Waveform • Dynamic Load Variations with programmable rise Data Acquisition with adjustable constant reading rate Data Acquisition Tool (Option ZS13) 11 The Data Acquisition Tool extends the function scope of • Quick data acquisition with memory, synchronized • Simulation of exponential inrush currents • Capacity measurement of batteries • MPP Tracking for solar panel test Fast data acquisition Data acquisition with variable measuring rate synchronized with...

Software Tools Characteristics Recorder Jnterface/HW Setup Protocol Configuration Waveform Editor * Basic Communication Show Measured Data The following tools und drivers are included in the interface options: Load Control The supplied tool can control single loads as well as I ^-aa5o i"s?_r»y: ; multi-channelled load systems. The function range includes the Electronic Load setting by computer as well as data acquisition with graphic display and data storage for other programs too. Create Chart Battery Test Data Acquisition In combination with the Load Control program the measured data for...

High Current Cables (Standard) Highly flexible cables in different lengths and diameters, with suitable ring terminal. Terminals are colour coded. For connecting devices, two lines are always required. For higher currents, several cables can be connected 11 The numbers for L und R refer to two cables to the DUT Ordering examles: Standard HKS cable in different diameters High Current Cables (low inductance) For dynamic loads with fast rise times and long ca- bles. These double cables allow the load voltage to follow the unit under test, with very small inductive losses. This is necessary to...

Mounting the Electronic Loads requires special racks with sufficient outlet for the warmed air. The H&H racks are equipped with wide air outlets on the rear which allow the air to escape practically un- The rear door is shortened for the cable duct. through flexible foam bottom area there is 19" Rack for Electronic Loads Cooling medium manifold for 19" racks, ZSLC series Main Switch for Rack Assembly (1 -phase, 3-phase) SE-1PH Main Switch 1 -phase, SE-3PH-DC Main Switch 3-phase with residual current circuit-breaker, emergency switch and DC power supply Residual current circuit-breaker 2x 1...

———–—–——–—–— Specifications 500 W ——––—–—–——— 4 ranges Model (Order No.) 1 range 4 ranges 3 ranges 3 ranges 3 ranges ZS506-4 ZS506 ZS512-4 ZS530-3 ZS560-3 ZS580-3 60 V 60 V 120 V 300 V 600 V 800 V 120 mA 1.2 A 12 A 60 mA 0.6 A 6A 45 mA 0.45 A 4.5 A 500 W 500 W 500 W - - - 0 ... 120 mA 0 ... 1.2 A 0 ... 12 A 0 ... 60 mA 0 ... 0.6 A 0 ... 6 A 0 ... 45 mA 0 ... 0.45 A 0 ... 4.5 A 16.7 Ω ... 27.7 kΩ (max. 120 mA) 33.3 Ω ... 111 kΩ (max. 60 mA) 44.4 Ω ... 197 kΩ (max. 45 mA) 1.67 Ω ... 2.77 kΩ (max. 1.2 A) 3.33 Ω ... 11.1 kΩ (max. 0.6 A) 4.44 Ω ... 19.7 kΩ (max. 0,45 A) 0.167 Ω ... 277 Ω (max....