參數(shù)資料
型號: 940
英文描述: Converter
中文描述: 轉(zhuǎn)換器
文件頁數(shù): 6/6頁
文件大小: 223K
代理商: 940
A
6
C
1
Models 940 and 945 DC Transmitters
http://www.calex.com
2401 Stanwell Drive
Concord, CA 94520-4841
(510) 687-4411 Fax (510) 687-3333
MK940 Application
Isolated Voltage In - 1 to 5 Volts Out
MK940 Application
Isolated Voltage In - 4 to 20 Volts Out
with Single Pole 10Hz Input Filter
NOTE:
R13 IS A 1% METAL FILM 1/4 W
RESISTOR.
NOTE:
R13 IS A 1% METAL FILM 1 W
RESISTOR.
FREQUENCY LIMIT - INPUT FILTER
DC TO 10 Hz BAND PASS
FIGURE 7.
Is similar to Figure 6 except R1 and R2 are used to set 4mA, or 1 Volt at the output with zero Volts input. Also R5 is zero ohms.
FIGURE 8.
Shows how to add a low pass filter at the input where the 400Hz bandpass may be too high and is causing noise problems. C4 should be a low dielectric
absorption capacitor such as a X7R ceramic or a film capacitor. As discussed in Figure 6, R13 is the output source resistance and in this case would
produce a 10% error when driving a 10,000 ohm load, and a 0.01% error when loaded by a 10 Megohm input digital voltmeter.
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