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参数资料
| 型号： | QM120C |
| 厂商： | Martel Electronics |
| 文件页数： | 2/2页 |
| 文件大小： | 0K |
| 描述： | LCD ELAPSED HOUR METER 9.9K HRS |
| 产品目录绘图： | QM Series QM Series Rear View QM Series Side View |
| 标准包装： | 1 |
| 系列： | QM |
| 显示器类型： | LCD DPM |
| 电压 - 额定： | 200V |
| 特点： | 低阻抗 |
| 封装/外壳： | 3 Pin SIP |
| 产品目录页面： | 2862 (CN2011-ZH PDF) |
| 其它名称： | 227-1044 QM120ET |
Martel Electronics, Corp. P.O. Box 770 Londonderry, NH 03053
Toll Free: (800) 821-0023 Phone: (603) 434-1433 Fax: (603) 434-1653
WIRE FUNCTIONS
0. Black 0V
1. Brown RANGE
2. Red V+
3. Orange V-SENSE
4. Yellow PULSE
5. Green LZB
6. Blue RESET
7. Violet TRIP/TOTAL
Negative power supply connection.
Do not connect for 99999 Hour range.
Connect to 0V for 9999.9 Hour range.
Positive power supply connection.
Connect to V+to start/continue counting elapsed hours.
Connect to 0V or do not connect to read TRIP or TOTAL value without counting elapsed hours.
Normally at 0V, this output goes High (+3.3V) every 100 hour interval in TRIP mode.
Do not connect to display leading zeros.
Connect to 0V to blank all leading zeros.
When reading is 0000.0 or 00000, leading zeros are not blanked.
Connect momentarily to 0V to reset the display to zero (internally connected to V+ via pull-up resistor).
Do not connect for TOTAL mode operation. In TOTAL mode, the elapsed hour meter cannot be reset to zero.
Connect to 0V for TRIP mode operation. In TRIP mode, the elapsed hour meter can be reset to zero.
Warning :
Do not connect the following wires to V+: RANGE, PULSE, LZB, RESET, TRIP/TOTAL, as this may
damage the meter. The user must incorporate suitable protection circuitry in applications where
the voltage to any of the meter's wires can exceed 27V d.c., including transient conditions, else
damage to the meter may occur. In particular, for applications in harsh electrical environments,
e.g. automotive, suitable external protection must be provided to protect against "load dump"
conditions, transients, etc.
DISPLAY FUNCTIONS
8888.8 The 5 digit readout displays elapsed time in hours.
TRIP This symbol is displayed when trip mode is selected (see Wire Functions above)
TOTAL This symbol is displayed when total mode is selected (see Wire Functions above)
---------- The 10-segment incrementing bar indicates that the module is working correctly and counting hours.
APPLICATIONS
S1
V+
V+
Red
Orange
Orange
Red
-
TOTAL Hrs
-
TOTAL Hrs
Black
Black
Green
Violet
S1
0V
Basic 3-wire operation:
- 99999 Hour range
- Leading Zeros are displayed
- Timing in TOTAL mode
Open S1 to read TOTAL value
without counting hours.
V+
Leading zeros blanked.
Close S1 to select TRIP mode.
0V
V+
TRIP
Orange
Red
-
Hrs
TRIP
Orange
Red
Hrs
-
Yellow
R
LED
Black
Brown
Violet
Black
Brown
Violet
0V
9999.9 Hour range
- Leading Zeros are displayed
- Timing in TRIP mode
Using the PULSE O/P to drive an LED.
The LED will illuminate once after every hour.
0V
Specifications liable to change without prior warning
QM 120 ET
Issue 6
September/200.
Applies to QM 120 ET
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