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| 型号： | QM100V |
| 厂商： | Martel Electronics |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | LCD DC VOLTMETER 4-25 VDC |
| 产品目录绘图： | QM Series QM Series Rear View QM Series Side View |
| 标准包装： | 1 |
| 系列： | 快速安装 |
| 类型： | 伏特表 |
| 测量范围： | 4 ~ 25VDC |
| 显示器样式： | 黑色字符，灰色背景 |
| 显示器类型： | LCD |
| 显示器正面尺寸： | 1.71" L x 0.84" W（43.5 x 21.4mm） |
| 显示器位数： | 3 |
| 显示器位数 - 高度： | 0.500"（12.70mm） |
| 背光： | 无 |
| 安装类型： | 面板安装 |
| 端子： | 导线引线 |
| 电源电压： | 3 ~ 50VDC |
| 产品目录页面： | 2862 (CN2011-ZH PDF) |
| 其它名称： | 227-1042 |
QM 100V
Single Hole Mounting 2-Wire Meter
QM 100V is an easy to mount LCD digital panel meter. The module features a 4 to 25V measurement range with 100mV resolution and is powered from the signal it is
measuring. Only valid readings are displayed; the module indicates "LO" at voltages below 4V and "HI" at voltages above 25V. To install the meter, the user need only
drill a single 5.5mm / 7 / 32 " hole in the panel. The module is fitted to the panel by locating its threaded stud through the hole, fitting the washer and tightening the nut
provided. The module's connecting wires pass through the hollow stud into the target application for connection. A rubber seal is included, providing splashproof
protection for the unit when fitted to the meter during installation.
Single Hole Mounting
2-Wire Operation
4 to 25 V d.c. Full Scale Reading
12.5mm / 0.5" LCD Digit Height
Reverse Polarity Protection
Splashproof
Easy Mounting V oltmeter
Shown Actual Size
Stock Number
QM 100V
APPLICATION
RED
+4 to +25V d.c.
Specification
A c c u r a c y ( o v e r a l l e r r o r )
L i n e a r i t y
Valid displayed reading*
Min.
4.0
Typ.
0 . 2
Max.
± 1
25.0
Unit
V ( ± 1 c o u n t )
c o u n t
V d.c.
R e s o l u t i o n
S a m p l e r a t e
1 0 0
3
m V d . c .
s a m p l e / s e c
Operating temperature range
S u p p l y v o l t a g e
S u p p l y c u r r e n t
0
3
50
5 0
3
°C
V d . c .
m A
BLACK
0V
* At voltages below 4.0V d.c., the LCD will display LO and will ultimately go blank.
At Voltages in excess of 25.0V d.c., the LCD will display HI .
Do NOT exceed 50V d.c., as this may damage the meter.
The module includes reverse polarity protection up to 30V for up to 30 seconds.
Operation and accuracy at voltages above 25.0V or below 4.0V are not specified.
SAFETY
To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s wires must not exceed 60Vd.c. The user must ensure that the
incorporation of the meter into the user ’s equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for
Measuring, Control and Laboratory Use).
DIMENSIONS
All dimensions in mm (inches)
Reading when Vin < 4V,
WARNING! In automotive applications or where an alternator
is present and there is the possibility of a transient voltage
spike it is recommended to use some type of transient
voltage suppressor (TVS) to protect the meter.
43.50 (1.71)
before display switches off.
METER
TVS ZENER DIODE
Martel Part Number: 80311
Digikey (www.digikey.com)
10.70
REAR VIEW
+
TVS DIODE
–
Part Number: 1N6287AGOS-ND
(0.42)
10.70
(0.42)
CAL
5.00
(0.20)
Reading when Vin > 25V.
Seal
Panel
2 wires - 30cm (12.0)
QM100V
21.75 (0.85)
21.75 (0.85)
EMV 1200-40
Module thickness: 5.5mm (0.22")
EMV
FITTING THE QM100V 1200-40
"
Drill a 5.5mm / 7 / 32 hole in the panel. Fit seal to the rear of the module. Fit the module to
the panel by passing its screw threaded stud and the wires through the hole, fitting the
Nut
washer and tightening the nut provided. Take care not to trap either of the connecting
wires. Do not to overtighten the nut as this may damage the meter.
9.0
(0.35)
Washer
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
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