* Wide voltage range battery discharger: 12V to 280V
* 5.7 inch LCD touch screen for easy operation and showing various parameters real time
* Selectable discharge mode: constant current/power / resistance
* 4 adjustable stop points and multiple alarm designs to control the discharge process intelligently
* Support RS232 real time monitoring by PC or USB download data after discharge
* PC software for capacity evaluation and report generation
* Optional wireless modules for 1.2V/2V/6V/12V cells voltage real-time measuring.
Overview:
Although battery resistance testing methods are improving and very popular, battery discharge test still is the most accurate and reliable method for actual capacity evaluation of battery groups. Because only constant current discharge can perfectly simulate the working status under loading for batteries, power supply departments in many companies and utilities keep the periodic discharge testing in their maintenance management.
Because the DC power systems in various industrial utilities are using different voltage level battery groups (24V, 48V, 110V, 120V, 220V, 240V etc.), and most of professional users hope to find an unattended and automatic instrument to simplify discharge process, the battery discharge tester with intelligent designs and super voltage variability for almost all battery types would be preferable.
Features:
Wide Range
840CT can support 10-300V battery groups, the application of 840CT includes:
Battery Nominal Voltage: Max Discharge Current
240 V / 220 V: 60 A
120 V / 110 V: 120 A
96 V: 120 A
48 V: 120 A
24 V: 120 A
12 V: 60 A
Multiple Adjustable Stop Points
840CT offers 4 adjustable points for test stop points to avoid excessive discharge:
Stop Point: Setting Range
Group Low Voltage: 0-250.0 V
Discharge Time: 0-99 Hour 99 Min
Discharge Capacity: 0-9999 AH
Cell Low Voltage: 0-15.00 V.
840CT also offer selectable quantity of cells which voltages below the stop point, this design could help you to locate more lag batteries in once constant discharging.
Selectable Discharge Modes
840CT provides 3 discharge modes for different test requirement:
Discharge Mode: Range
Constant Current: 0-120 A
Constant Power: 0-14 Kw
Constant resistance: 0.16
5.7 inch Touch LCD Display
Super big size touch LCD can display all real time data and graphs and support the click operations directly, humanized input method and menu designs simplified operating process.
Presetting Function:
The presetting function for discharge parameters provide 8 locations for setting up all discharge parameters in advance, this design can skip the setting procedures for the same discharging, simplified the operation and speed up the test.
Internal Memory:
* 840CT can save several independent discharge records automatically without Laptop monitoring, non-volatile internal memory guarantee the data security even in unexpected shutdown.
* The menu interface provides some management operations like reviewing, deleting, downloading to PC by USB disk or RS232.
Optional wireless cells voltage monitoring
* Wireless modules for cells voltage measuring are available for 1.2V/2V/6V/12V batteries voltage monitoring during discharge test.
* Each wireless module can monitor 4 batteries simultaneously. Comparing with the traditional cable voltage measuring method that each module only can monitor 1 battery, the new wiring operation is much easier.
* With proper number wireless modules, main tester can real time scan and display the voltage data of each battery during the discharging, and display the histogram of all batteries to follow the battery voltage tracks in whole discharging process.
* Intelligent judge program: 840CT can identify the situations that the battery voltages reach the threshold value or the signal missing by manual mistake. Avoiding manual interruption in the discharging, this revolutionary program makes the test stable and smooth.
* 840CT also supports cable modules for special requirements.
Multiple Protections & Alarms:
Malfunctions: LCD prompt: beep warning
Input over-voltage
Reverse polarity
Overload
Overheat
840CT provides ample protective measures for various abnormal situations during discharge. Automatic termination, LCD prompt and beep warning would assist users to make proper treatments.
Extendable & Compatible:
Connecting with clamp current, 840CT cooperate other types in -CT series or any other load units, and clamp current can count external current in.
PC ANALYSIS SOFTWARE:
* Support data downloading and analyzing through real time communication or USB memory devices
* The software interface includes: battery voltages curve and bar chart, battery resistances bar chart, group voltage curve, current curve, capacities histogram, data form and so on.
* Powerful capacity estimating function, the software can predict the capacity of each battery in the tested group.
* The software shows the data by various ways like bar charts, curve, and form. And users can magnify or minify any windows to read more details.
* Automatically create EXCEL data report, it¡¯s so convenient to send or download the data.
SPECIFICATIONS:
Discharge Ranges
Voltage range: current range
10-15V: 0-60A
15V-60V: 0-120A
86-150V: 0-120A
190-280V: 0-60A
Current measurement:
Internal current range: 0-120A
Accuracy &resolution: 0.5%, 0.1 A
External current range: 0-600A(optional current clamp)
Accuracy &resolution: 1%, 0.1 A
Voltage measurement
Group voltage range: 0-300 V
Accuracy &resolution: 0.5%, 0.1 V
Cell voltage range: 0-15V
Accuracy &resolution: 0.5%, 0.01 V
Power Supply
Power supply voltage: 220 V AC (-20% to +30%)
Frequency: 50/60 Hz
Power consumption:: 350W(max)
Communication & Storage
Communicate port: USB/RS232
Internal memory: 8Mbit Flash
CE Certificate:
LVD standards : 2006/95/EC:EN 61010-1:200
EMC standards: 2004/108/EC Annex II:
EN 61000-6-1:2007
EN 61000-6-3:2007
EN 61000-3-2:2006+A2:2009
EN 61000-3-3:2008
Environment:
Operation temperature: -5 to 50o C
Storage temperature: -40 to 70o C
Humidity: 5% - 95% RH
Altitude: below 4000 m
Working noise: <60 dB
Dimensions & Weight:
Main tester : 230 x 370 x 670 mm
Carrying case: 280 x 640 x 750 mm
Weight: 24 kg (main tester only)
42 kg (included all accessories and carrying case)
0.3 kg (each optional wireless module)
Accessories:
Carry case: 1 x 280 x 640 x 750 mm, 13 kg
Power cable: 2 x 3 m cables 50 mm2
AC power cord: 1 x 3 wires x 1 mm2
Software: 1 x CD-ROM
RS232 wire: 1
User manual: 1
USB disk: 1 x 2GB
Current clamp: 1 x 200A or 600A (Optional)
Ordering Information:
Type : Description
840CT: Battery discharge & capacity tester
-AS: PC analysis software
-200CC: 200A current clamp
-600CC: 600A current clamp
WX-2612: Wireless module for 2V/6V/12V
WX-12612: Wireless module for 1.2V/2V/6V/12V
YX-12612: cable module for 1.2V/2V/6V/12V.
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SANDI SERIES charging module is for electric vehicle charging station. With single-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic.
Functional details
1. Hot plug
Plug technology is applied to the charging module to provide convenience for installation and maintenance. The access of the charging module to the system shall not disturb the output voltage of the system.
2. Advanced current sharing technology
Under constant voltage working mode, the charging modules can share current automatically within 10S, with degree of unbalance less than �±0.5A.
3. Control of input limited power
Refer to Fig. 1-10 for the relation between the output power and input voltage of the charging module. When the input voltage is within 360 Vac ~ 450 Vac (return difference is less than 5V), the module can output the maximum power of 20 KW; when the input voltage is within 260 Vac ~ 320 Vac, the module can still work normally under limited power mode.
4. Control of output constant power
When there is a rated input voltage, the output power of the module is 20 KW. Refer to Fig. 11 for the relation between the output voltage and the output current of the module.
The SD75050 module uses two operating modes with output voltage ranges of 50 to 750V.
The module only selects the operating mode based on the value of the received demand voltage, and does not select the operating mode based on the actual output voltage.
5. Temperature limited power
6. Regulation of output current limiting point
8. Regulation of output voltage
The output voltage of the module can be regulated constantly through the external monitoring module, with regulation range of 50Vdc ~ 750Vdc and minimum regulation step of 0.1 Vdc.
9. Fan control
The built-in processor of the module can regulate the speed of the fan according to the internal temperature and output current of the module.
10. Protection of input overvoltage/ voltage shortage
11. Output overvoltage protection
The overvoltage protection point is 260Vdc ~770Vdc (�±10 Vdc). Default is 778Vdc.The module can be started after manual intervention upon overvoltage protection.
12. Over-temperature protection
The environmental over-temperature protection point is 80�°C. When the DC panel has a temperature over 100�°C, the module will stop working; when the DC panel has a temperature below 90�°C, the module will automatically work again.
13. Protection of internal bus fault
When the internal bus voltage of the module is beyond the overvoltage/ voltage shortage protection point, the module will be powered off automatically. At this time, there is no output from the module and the fault indicator light is on.
14. Short circuit protection
In case of short circuit of the module, it will be subjected to protective shutdown and the red indicator light of the panel is on, and this condition will be transmitted to the monitor of the "module fault".
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