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参数资料
| 型号： | HWK70000 |
| 厂商： | Red Lion Controls |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | CABLE ASSEM FOR MDM SERIES |
| 标准包装： | 1 |
| 系列： | * |
| 附件类型： | 缆线 |
| 适用于相关产品： | MDMU 系列 |
| 产品目录页面： | 2853 (CN2011-ZH PDF) |
| 其它名称： | RLC70 |
Bulletin No. MDMV-F
Drawing No. LP0266
Revised 08/09
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODEL MDMV - MINIATURE DISPLAY MODULE D.C. VOLTMETER
?
?? LCD, POSITIVE REFLECTIVE OR NEGATIVE TRANSMISSIVE
WITH YELLOW/GREEN OR RED BACKLIGHTING
?
?? 1 pA INPUT LEAKAGE CURRENT TYPICAL
?
?? 200 mV FULL SCALE
?
?? AUTOMATIC ZEROING CIRCUIT
?
?? SELECTABLE DECIMAL POINTS
?
?? POLARITY INDICATION
?
?? 5 VDC POWERED
?
?? FIVE SELECTABLE DISPLAY ANNUNCIATORS
?
?? PANEL MOUNT OR PC BOARD MOUNT
DESCRIPTION
The MDMV is a small panel or printed circuit board mount digital voltmeter.
With advantages of accuracy, size, and ease of installation, it is an ideal
replacement for analog meters. The unit has a 3?-digit LCD display with 0.4"
(10.2 mm) high digits. The displays are available in positive image reflective
(black digits, reflective background) or negative image transmissive (illuminated
digits, dark background) with red or yellow/green backlighting.
The integrated circuit is bonded directly to the printed circuit board and is
mechanically protected. Internal electrical interface connections use elastomeric
connectors to provide a corrosion resistant connection. This reliable construction
also reduces the space requirements.
The MDMV module is designed to operate from a +5 VDC supply. The
module measures input voltages from 0 to ±199.9 mV DC relative to the supply
common.
Auto-zeroing is provided by the module, therefore no zero adjustment is
required. If the input signal exceeds the input range, the unit display will
indicate an overrange condition.
The module has three selectable decimal point positions and five selectable
annunciators (BAT,V,A,m, μ ). The BAT (Battery) annunciator is used to indicate
a low battery condition, while the others are used to indicate Volts and Amperes.
SPECIFICATIONS
1. DISPLAY : 3?-digit, 0.4" (10.2 mm) high digits. A minus(-) sign is displayed
when the voltage is negative.
2. DECIMAL POINTS : Selectable decimal points are activated at the rear
terminal pins to allow the display to be read in tenths, hundredths or
thousandths.
3. ANNUNCIATORS : 5 selectable annunciators, BAT, V, A, μ and m are
activated at the appropriate rear terminal.
4. POWER REQUIREMENTS :
Reflective Versions : 3 VDC to 6 VDC @ 500 μ A Max.
Backlight Versions : 4.8 VDC to 6 VDC @ 25 mA Max.
5. INPUT RANGE : 0 to ±199.9 mV DC.
6. COMMON MODE : ±1 V min. around common.
7. ACCURACY : ±(0.1% + 1 digit).
8. RESOLUTION : 100 μ v/Count.
9. OVERRANGE RATINGS, PROTECTION & INDICATION :
Max Input Voltage : 6 VDC Max.
Overrange Indication : Overrange is indicated by a “1” displayed in the
most significant digit and the blanking of the three least significant digits.
10. READING RATE : 2? readings per second.
11. RESPONSE TIME : 1.5 seconds to settle for a step input change.
12. INPUT LEAKAGE CURRENT : 1 pA typical, 10 pA Max.
Note: Recommended minimum clearance (behind the panel) for mounting clip installation is 2.25" (57.2)W x 1.5" (38.1)H.
PANEL MOUNT UNIT
PANEL CUT-OUT
.93 +.03
(23.6 +.8 )
DIMENSIONS
In inches (mm)
1.06
(26.9)
-.02
-.5
R .06 MAX., 4PL.
(1.5)
1.68 +.03
(42.7 +.8 )
1.81 (46.0)
NOTE: BACKLIGHT MODELS: 0.50" (12.7)
REFLECTIVE MODELS: 0.31" (8.0)
.06
(1.5)
SEE
NOTE
.2 (5.08) MAX.
.14 (3.56) MIN.
-.02
-.5
PRINTED CIRCUIT BOARD MOUNT UNIT
RECOMMENDED PCB LAYOUT
.90
(22.9)
.19 (4.8)
UNIT OUTLINE
1.65 (41.9)
NOTE: BACKLIGHT MODELS: 0.56" (14.2)
REFLECTIVE MODELS: 0.37" (9.4)
SEE
NOTE
.2 (5.08) MAX.
.14 (3.56) MIN.
.10 (2.5)
.12 (3.1)
?.042 (1.07) THRU, 15 PL.
1
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