参数资料
型号: 9121A
厂商: B&K Precision
文件页数: 27/50页
文件大小: 0K
描述: PWR SUP SNG OUTPUT PROG 20V 5A
产品目录绘图: 9120A
标准包装: 1
系列: 9120A
类型: 工作台(AC 至 DC)
电源电压: 110VAC,220VAC
输出电压: 0 ~ 20VDC
电流 - 输出: 0 ~ 5A
显示器类型: VFD
输出数: 1
尺寸/尺寸: 13.900" L x 8.450" W x 3.470" H(353.06mm x 214.63mm x 88.14mm)
特点: 可编程,RS232 端口
功率(瓦特): 100W
精确度 - 伏特表;安培表: 0.02% + 3mV; 0.05% + 2 mA
稳压 - 线路: 0.01% + 1mV
稳压 - 负载: 0.01% + 2mV
稳流 - 线路: 0.05% + 1mA
稳流 - 负载: 0.05% + 1mA
纹波: 3mV p-p
重量: 20 磅(9.1kg)
其它名称: BK9121A
Data Frame Format
Parity=None
Start
Bit
8 Data Bits
Stop
Bit
Parity=Odd,
Even
Start
Bit
8 Data Bits
Parity
Bit
Stop
Bit
End of String character is ’\n’ (0x0a)
DB9 Interface Details
The DB9 connector in the rear panel of the power supply provides a TTL level signal .It can be connected to a
standard PC interface via the IT-E131, IT-E132 or IT-E135 isolated converter/adapter.
Flow Control
There are no hardware flow controls for sending and receiving commands to the power supply.
The average time it takes to both send and receive every command is approximately 200ms. In
the case of more complex commands, more time may be required to complete transmission.
Note : Configuration of address parameter
Communication via RS232 and USB: Setting of the address is optional. It is not required to
communicate with the instrument. The address can be set from the front panel and is stored in non
volatile memory.
This feature is useful when communicating via USB, and connecting several
instruments, e.g. via a USB hub.
In this scenario, Windows assigns a virtual COM port to each
device which is unknown prior to establishing communications with the instrument (could be
different each time).
In this case, the user can correlate each virtual COM port randomly assigned
by Windows with a user defined address.
Communication via GPIB : Setting of the address value is mandatory and corresponds to GPIB
instrument address according to GPIB/IEEE-488 conventions.
27
Valid values are 0 – 30.
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