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| 型号： | SP200 |
| 厂商： | Martel Electronics |
| 文件页数： | 4/4页 |
| 文件大小： | 0K |
| 描述： | LCD DPM 200MV 3.5 DIGIT |
| 标准包装： | 1 |
| 系列： | SP |
| 类型： | 伏特表 |
| 测量范围： | 200mVDC |
| 显示器样式： | 黑色字符，绿色背景 |
| 显示器类型： | LCD |
| 显示器正面尺寸： | 1.38" L x 0.88" W（35.1 x 22.4mm） |
| 显示器位数： | 3.5 |
| 显示器位数 - 高度： | 0.384"（9.75mm） |
| 背光： | 绿 |
| 安装类型： | 面板安装 |
| 端子： | PC 引脚 |
| 电源电压： | 3.5 ~ 5.25V |
| 其它名称： | 227-1051 |
SP 200
SCALING
3? Digit Backlit LCD Voltmeter Module
Two resistors Ra and Rb
may be used to alter the
full scale reading (FSR) of
the meter - see table. The
meter will have to be re-
calibrated by adjusting the
calibration potentiometer
on the rear of the module.
Voltage
Vin
Current
I in
FSR
2V
20V
200V
2000V*
200 μ A
2mA
20mA
200mA
Ra
910k
1M
1M
1M
0R
0R
0R
0R
Rb
100k
10k
1k
100R
1k
100R
10R
1R
+
Vin or I in
-
Ra
Rb
11
12
INH
SP 200
INL
*Ensure that Ra is rated for high voltage use.
APPLICATIONS
Do not connect more than one meter to the same power supply if the meters cannot use the same signal
ground. Taking any input beyond the power supply rails will damage the meter.
V+
V+
V+
1
V+
1
V+
220k
Set Zero
1
V+
+
±200mV
-
11
12
INH
INL
GND
RO
RI
8
7
+
±200mV
-
11
12
10
INH
INL
COM
GND
RO
RI
8
7
I -
4-20mA
I +
5k
R
12
10
11
INL
COM
INH
GND
RO
RI
8
7
3
0V
3
0V
R= Reading at 20mA
160
3
0V
Measuring a single ended input
voltage referenced to supply, i.e. the
input voltage and the meter's power
supply share the same 0V rail.
Measuring an input voltage referenced to
a floating supply, i.e. the input voltage
and the meter's power supply are isolated
from each other.
Measuring a 4-20mA loop current.
The meter's power supply must be isolated
from the 4-20mA current loop.
7805
+5V
1
Ra=1M
I
V supply
220nF
10uF
470nF
10
COM
V+
INH
V
11
S 1 A
Load
R L
8
7
RO
RI
GND
3
INL
12
Rb=1k
Rs
S 1 selects between voltage and current display.
Ra and Rb shown scaled for 200V FSR .
Rs = 200mV (e.g. 0.1 ? for 2A range)
I
Shunt
Measuring supply voltage and current to a load.
Display DP1, DP2 or DP3 by connecting to GND, as required.
Specifications liable to change without prior warning
SP 200
Issue 3
October/2001
M.C.
Applies to SP 200/1
PO Box 770, Londonderry, NH 03053 1-800-821-0023
Page 4 of 4
www.lascarelectronics.com Page 4 of 4
www.martelcorp.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP-200 | 制造商:ASTRODYNE 制造商全称:Astrodyne Corporation 功能描述:200W Single Output with PFC Function |
| SP200 | 制造商:Lascar Electronics 功能描述:VOLTMETER LCD 3.1/2 DIGIT 12PIN |
| SP-20-0.3-5 | 制造商:TT Electronics / IRC 功能描述:ELECTRONIC COMPONENT |
| SP200_05 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+5V High-Speed RS-232 Transceivers with 0.1mF Capacitors |
| SP-200_10 | 制造商:MEANWELL 制造商全称:Mean Well Enterprises Co., Ltd. 功能描述:200W Single Output with PFC Function |
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