- 您现在的位置：买卖IC网 > Sheet目录221 > DMS-20PC-4/20B-C (Murata Power Solutions Inc)METER LED SELF-PWR 3.5DIG RED
DMS-20PC-4/20 Series
Subminiature 4-20mA Loop-Powered
3? Digit LED Process Monitors
Performance/Functional Speci?cations
Typical at T A = +25°C, unless otherwise noted.
OPERATING AND SETUP INSTRUCTIONS
Current Loop Input
Full Scale Input Range: ?
Input Impedence: ?
Voltage Drop ?
Overvoltage Protection ?
Min.
+4
–
–
–
Typ.
–
250
4.5
–
Max.
+20
5.0
±2
Units
mA
Ω
Volts
mA
DMS-20PC-4/20S (Unipolar Reading Model)
As shipped, the DMS-20PC-4/20S is factory calibrated to read "000"
for a 4mA input and "1000" for a 20mA input. The following worst-case
procedure assumes the DMS-20PC-4/20S is completely mis-adjusted,
i.e., both potentiometers and the DIP switches are randomly set. When
performing DIP-switch settings, be sure the DIP switch's small actuators
Performance
are ?rmly engaged in their fully-ON or fully-OFF positions.
Sampling Rate
Accuracy (1 minute warm-up):
2.5 reading per second
±0.05%FS ±1 Count
1 . Set R7 (full scale span/gain adjust) and R3 (zero/offset adjust) fully
clockwise, roughly 22 turns, and place SW1-SW6 to OFF.
Temperature Drift (0 = +50°C)
–
±0.15
±0.3
Cnts/°C
2 . Select DIP switch setting #2.
Display
3 . Apply a precision 4mA input, with proper polarity, and adjust R3 until
Display Type and Size
Polarity Indication
Overrange Indication
3? digit, 0.37"/9.4mm high red LED
"–" for negative reading
"–1____" for negative Vin
the meter's display reads "000".
4. Apply a precision 20mA input and adjust R7 until the meter's display
reads "1000". Repeat steps 3 and 4 to make sure the adjustments do
Physical/Environmental
"1____" for positive Vin
not affect one another.
5 . Select the appropriate decimal point by setting SW4, SW5 or SW6 to
Operating Temperature
Storage Temperature
Humidity (non-condensing)
0
–40
0
–
–
–
+60
+75
95
°C
°C
%
ON (DP1, DP2 or DP3 respectively).
NOTE: If a display reading other than "000" to "1000" is desired,
refer to DIP–Switch Settings Table 1 for SW1–SW3 settings.
Case Material
Polycarbonate
Weight
0.6 ounces (17 grams)
Table 1. DMS-20PC-4/20S (Unipolar Model) DIP-Switch Settings
? The DMS-20PC-4/20, using any of the DIP-switch settings described above, can
withstand overcurrents, including those resulting from accidental reverse-polarity
connections, up to ±40mA without sustaining any damage.
? Because DATEL's DMS-4/20 loop-powered meters employ active circuitry to
convert the loop current into a voltage, the meters' effective series impedance
varies in a manner that maintains the loop voltage drop constant over the full
4-to-20mA current range. Listed impedance speci?cation applies at 20mA.
? When looking up DIP-switch settings in the Tables and the desired display
Display Reading
4mA 20mA
1. 000 to 1050-1999
2. 000 to 650-1350
3. 000 to 450-800
4. 000 to 300-500
5. 000 to 200-300
SW1
Off
On
Off
Off
On
SW2
Off
Off
On
Off
On
SW3
Off
Off
Off
On
On
readings can be achieved with either of two different settings, using the higher
setting # will produce less sensitive offset (R3) and span (R7) adjustments.
Please keep in mind that the DMS-20PC standard meter (from which the DMS-
20PC-4/20 is derived) has an accuracy speci?cation of ±2 counts (max.). Thus,
Examples (DMS-20PC-4/20S-Unipolar Model)
it may not always be possible to obtain the exact desired display reading.
1. Desired display readings are:
4mA ="0.00"
ON
20mA = "6.00"
1
2
3
4
5
6
Ordering Information
Use DIP-switch setting #3 in Table 1 and enable decimal point DP2 via
DMS-20PC-4/20S-C
DMS-20PC-4/20B-C
Unipolar reading, loop-powered LED meter
Bipolar reading, loop-powered LED meter
SW5. Apply 4mA and adjust R3 so the display reads "0.00". Apply
20mA and adjust R7 so the display reads "6.00".
DMS-20PC-4/20P-C
Positive reading, loop-powered LED meter
2. Desired display readings are:
ON
DMS-BZL3-C
DMS-BZL4-C
DMS-20-CP
Bezel assembly
Bezel assembly with sealing gasket
Panel cutout punch
4mA = "000"
20mA = "800"
1
2
3
4
5
6
A panel-mount retaining clip is supplied with each model.
Use DIP-switch setting #2 in Table 1. Apply 4mA and adjust R3 so the
display reads "000". Apply 20mA and adjust R7 so the display reads
"800". For these display readings, no decimal points are used. Set
SW4, SW5 and SW6 to OFF.
www.murata-ps.com/dpm
29 Mar 2011
email: sales@murata-ps.com
MPM_DMS20PC-4/20.C05 Page 2 of 6
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
DMS-20PC-7-DCM-C
DPM LED SELF-POWERED DC RED
DMS-20RM-3-DC2-R-C
AC VOLTMETER 300V RANGE DC POWER
DMS-30DR-1-R-C
DPM LED 2V 3.5DIG DAYLIGHT RED
DMS-30LCD-1-9-C
DPM LCD 2VDC 3.5DIG 9-14V SUPPLY
DMS-30LCDA-4/20S-C
METER LCD SELF-POWERED 3.5DIG
DMS-30PC-1-RH-C
DPM LED MINI 2VDC SUPER-BRIGHT
DMS-30PC-4/20S-24GS-I-C
DPM LED 24V SUPPLY 3.5DIG GREEN
DMS-40LCD-0/1-5-C
DPM LCD 200MV/2VDC 4.5DIGIT
相关代理商/技术参数
DMS-20PC-4/20P
功能描述:数字面板表 3 1/2 digit red LED Positive reading RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-4/20P-C
功能描述:数字面板表 20mA max 4.5 V drop Pos read 3 1/2 LED RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-4/20S
功能描述:数字面板表 3.5 Digit Loop Meter +4 To +20mA RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-4/20S-C
功能描述:数字面板表 3.5 Digit Loop Meter +4 To +20mA RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-4-DCM
功能描述:数字面板表 - DC Voltage Monitor -4.50 to -19.99Vdc RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-4-DCM-C
功能描述:数字面板表 - DC Voltage Monitor -4.50 to -19.99Vdc RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-5-DCM
功能描述:数字面板表 - DC Voltage Monitor -18.0 to -50.0Vdc RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM
DMS-20PC-5-DCM-C
功能描述:数字面板表 - DC Voltage Monitor -18.0 to -50.0Vdc RoHS:否 制造商:Murata Power Solutions 设备类型:AC Voltmeters 显示器类型:LED, 3 Digit, Red 工作电源电压:85 VAC to 264 VAC 工作电源电流:50 mArms 输入电流:50 mA 输入频率: 输入电压:120 VAC 系列:DMS-20PC-1-LM