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参数资料
型号： 1794
厂商： B&K Precision
文件页数： 13/42页
文件大小： 0K
描述： POWER SPLY DC LINEAR 0-32V 0-30A
产品目录绘图： 1794, 1795
标准包装： 1
类型： 支架安装（AC 至 DC）
电源电压： 120VAC，230VAC
输出电压： 0 ~ 32VDC
电流 - 输出： 0 ~ 30A
显示器类型： LED
数字/字母数： 3（2）
输出数： 1
尺寸/尺寸： 15.750" L x 19.000" W x 5.250" H（400.05mm x 482.60mm x 133.35mm）
特点： 调节
稳压 - 线路： 0.01% + 2mV
稳压 - 负载： 0.01% + 2 mV
稳流 - 线路： 0.05% + 10mA
稳流 - 负载： 0.05% + 10mA
纹波： 1mV rms
重量： 50 磅（22.7kg）
其它名称： BK1794
SECTION - 5
SERVICE INSTRUCTION
5.1
5.2
GENERAL :
The instrument has been tested throughly and then released for dispatch.Normally,
the unit works satisfactorily under all condition. However due to ageing / misuse or
malfunctioning, the unit may become defective. In case, the user wants to carryout
Servicing, the following instructions will be helpful in rectifying the defects.
The Servicing shall be done only by Qualified personnel.
TROUBLE SHOOTING TECHNIQUES :
5.2.1 INTRODUCTION : The trouble shooting procedure is arranged in an order that checks
the simple trouble possibilities before proceeding to extensive troubleshooting.
5.2.2 CONTROL SETTINGS :
Incorrect control settings can seem like a trouble that
does not actually exist. If there is any question about the correct function or
operation of any control, see the Operating Instructions section.
5.2.3 SYSTEM AND ASSOCIATED EQUIPMENT : Before trobleshooting the 1790 (349),
check for proper input fuse as per part list is intac. Check the line voltage at the
power source before connecting the mains cord is rated for the correct input voltage.
Verify that the front panel controls are kept at minimum position. The output terminals
must be free from any load connecting leads.
5.2.4 VISUAL CHECK :
Many troubles can be located by visual clues such
as unsoldered connections, broken wires, damaged circuit board, damaged
components, etc.
5.2.5 INTERNAL ADJUSTMENT : Check the Adjustment of the suspected circuit if the
trouble is obviously in a certain circuit. The trouble may only be a result of
misadjustment and may be corrected by readjustment.
5.2.6 CIRCUIT ISOLATION : Note the trouble symptoms. These often identify the circuit
in which the trouble is located. When trouble symptoms appear in more than one
circuit,check the effected circuits by making waveform and voltage measurements.
5.2.7 COMPONENT CHECKING : If a component cannot be disconnected from its
circuits, then the effects of the associated circuitry must be considered when
evaluating the measurement. Except for soldered-in transistors and integrated
circuits, most components can be lifted at one end from the circuit board.
5.2.8 TRANSISTORS AND IC's : Turn the power switch off before removing or
replacing any semiconductor. A good check of transistor operation is actual
performance under operating conditions. A transistor can most effectively be
10
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相关代理商/技术参数
参数描述
1794-0 制造商:Pomona Electronics 功能描述:
1794000000 功能描述:JUMPER ZQV 4N/3 BLACK RoHS:是 类别:连接器，互连式 >> 接线座 - 配件 - 跳线 系列:ZQV 标准包装:10 系列:- 类型:接线板 － 交叉连接 位置数:4 样式:- 适用于相关产品:接线座 其它名称:FBSTB 4-6
1-794006-0 制造商:TE Connectivity 功能描述:03P MINI UMNL HDR ASSY R/A LF - Bag 制造商:TE CONNECTIVITY 功能描述:
1794010000 功能描述:JUMPER ZQV 4N/4 RED RoHS:是 类别:连接器，互连式 >> 接线座 - 配件 - 跳线 系列:ZQV 标准包装:10 系列:- 类型:接线板 － 交叉连接 位置数:4 样式:- 适用于相关产品:接线座 其它名称:FBSTB 4-6
1794020000 功能描述:JUMPER ZQV 4N/4 BLUE RoHS:是 类别:连接器，互连式 >> 接线座 - 配件 - 跳线 系列:ZQV 标准包装:10 系列:- 类型:接线板 － 交叉连接 位置数:4 样式:- 适用于相关产品:接线座 其它名称:FBSTB 4-6
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