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參數資料
| 型號： | DMS-3019X |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Alternate Source for DP-650 Series, 3 Digit, LCD Display Digital Panel Voltmeters |
| 中文描述： | 備用源于DP - 650系列，3數字，數字液晶顯示面板電壓表 |
| 文件頁數： | 1/2頁 |
| 文件大?。?/td> | 121K |
| 代理商： | DMS-3019X |
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
E-mail: sales@datel.com
Internet: www.datel.com
DMS-3019X Series
Alternate Source for DP-650
Series, 3 Digit, LCD Display
Digital Panel Voltmeters
Figure 1. DMS-3019X Simplified Schematic
Features
Replaces DP-650, DP-652 and
DP-654 meters
Connects directly to existing wiring
Available in three input ranges:
±200mV, ±2V and ±20V
Low power consumption
Wider operating temperature
range (0 to +60°C)
Rugged, epoxy-encapsulated
plastic packages
Large (0.4"/10.2mm) LCD displays
Made in the USA!
DATEL's new DMS-3019X Series, 3 Digit, LCD Display, Digital Panel Voltmeters
provide DP-650 users with a superior-quality alternate source. The DMS-3019X
Series input/output connector is pin-compatible with nearly all DP-650 applications.
Only minor sheet-metal modifications are needed to attain all the advantages offered
by the DMS-3019X Series digital voltmeters.
Three differential, high-impedance, input voltage ranges are available: ±200mV
(DMS-30193), ±2V (DMS-30194) and ±20V (DMS-30195). Provisions are also
included for the addition of custom input-scaling resistors—a feature found only on
DMS-3019X meters. Autozero calibration, autopolarity changeover and a factory-
calibrated ultra-stable reference circuit are standard. A reliable, epoxy-encapsulated
DMS-30LCD digital voltmeter, with large (0.4"/10.2mm) LCD digits, is used in all three
models. All internal and external connections are 100% soldered—no elastomeric
connectors are used.
The DMS-3019X Series offers many noteworthy improvements over its competi-
tors: wider operating temperature range, lower power consumption and higher input
impedance, to name a few. And, most importantly, all DATEL digital panel meters are
designed and manufactured in the USA!
Actual Size
GAIN
ADJUST
(+) INPUT HI
(–) INPUT LO
DISPLAY TEST
V+
R3
DP 1
DP 2
DP 3
6
5
4
7
8
1
3
DC/DC
CONVERTER
DP COM
+5V
–5V
+5V
1.23V
REF.
R4
≈
+2.0V
DATA
909k
V+
V–
A/D
CONVERTER
0 Vdc
0.01μF
R4 is not used on the ±200mV or ±2V models.
R4 = 100k on the ±20V model.
R1 and R2 are user supplied.
2
GND
R1
R2
9
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