参数资料
型号: SP100
厂商: Martel Electronics
文件页数: 3/4页
文件大小: 0K
描述: LED DPM 200MV 3.5 DIGIT RED
标准包装: 1
系列: SP
类型: 伏特表
测量范围: 200mVDC
显示器样式: 红色字符,黑色背景
显示器类型: LED
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: 0.370"(9.40mm)
背光:
安装类型: 面板安装
端子: PC 引脚
电源电压: 4.75 ~ 5.25V
其它名称: 227-1050
SP 100
CIRCUIT DIAGRAM
1
11
12
10
3? Digit LED Voltmeter Module
2
6
7
5
0V
3
4
8
9
PIN FUNCTIONS
1.
2.
V+
DE
Positive power supply to the meter.
Display Enable. Connect to V+ for normal operation.
PO Box 770, Londonderry, NH 03053 1-800-821-0023
Do not connect to enter low power mode. The display is then blanked, but the voltmeter section
continues to operate. In low power mode, the current consumption is reduced to 400 μ A (typ).
3. 0V 0V power supply connection to the meter.
4. DP3 Connect to 0V to display DP3 (199.9).
5. DP2 Connect to 0V to display DP2 (19.99).
6. DP1 Connect to 0V to display DP1 (1.999).
7. R I Reference voltage input for the meter's A/D converter.
8. RO Precision reference voltage output. Connect to RI for normal operation.
9. T Connect to V+ to test the display. All segments will be displayed, except for decimal points.
10. COM Ground for analogue section of A/D converter.
It is actively held at 3.05V (nom) below V+ and must not be allowed to sink excessive current
(>100 μ A) by, for instance, connecting to a higher voltage.
11. INH Positive measuring input.
12. INL Negative measuring input.
Note:
A negative supply is generated internally and mirrors the positive supply. For example: if V+ is +5V, then
the internally generated V- is -5V. When measuring with the input referenced to the same supply rail as
that of the panel meter, then the limitations on the input range are (V- + 1.5V) to (V+ - 1.5V).
www.lascarelectronics.com Page 3 of 4
www.martelcorp.com
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