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DMS-40PC-4/20S
4? Digit, 4-20mA Input, LED Display Meters
Performance/Functional Speci?cations
Typical at TA = +25°C, unless otherwise noted.
TECHNICAL NOTES
(1) Full Scale Input: The DIP Switch settings display readings in Table 1
Current Loop Input
Full Scale Input Range (1)
Loop Burden (2)
Min.
+3.7
12
Typ.
–
–
Max.
+20.4
103
Units
mA
Ohms
can typically be obtained with transmitters having a low-level output
of 3.7 to 4.3mA and a full-scale output of 19.4 to 20.4mA. When
using transmitters whose outputs fall outside these ranges, try using
Voltage Drop (2)
Overcurrent Protection
Performance
Sampling Rate
Accuracy (1 minute warm-up)
–
–
– 2.1
– ±40
2.5 reading per second
To ±0.01%FS ±2 Count
Volts
mA
the next highest DIP switch setting if the desired reading is too low,
or the next lowest setting if the desired display reading is too high.
Example number 2 illustrates this point.
Please keep in mind that the DMS-40PC meter from which the
DMS-40PC-4/20S is derived has an accuracy speci?cation of ±3
counts (max.); thus, it may not always be possible to obtain the exact
Temperature Drift of Span (3)
Temperature Drift of Zero (3)
–
–
±0.3
±0.2
±0.6
±0.5
Cnts/°C
Cnts/°C
desired display readings. A change of ±1 count is de?ned as the
right-hand most digit (the"ones" LED) going up or down by one.
Power Supply Requirements (4)
Other display readings not shown in Table 1 are obtainable. For
DMS-40PC-4/20S-5RS
DMS-40PC-4/20S-5GS
DMS-40PC-4/20S-5RH
DMS-40PC-4/20S-RL
DMS-40PC-4/20S-24RL
DMS-40PC-4/20S-24XX-I (models)
Display
Display Type and Size
Polarity Indication
Overrange Indication
+4.75 to +5.25Vdc at 140mA max.
+4.75 to +5.25Vdc at 140mA max.
+4.75 to +5.25Vdc at 140mA max.
+4.75 to +5.25Vdc at 50mA max.
+7.5 to +32Vdc at 50mA max.
+21.6 to +26.4Vdc at 60mA max.
4? digit, 0.52"/13.2mm high LED
"–" for negative readings
"–1_ _ _ " for negative inputs
example, some negative readings with a 4mA input are possible.
Consult DATEL for more information regarding display readings not
shown in the table.
(2) Loop Impedance/Drop: The maximum loop impedance and the
maximum loop voltage-drop are both speci?ed with DIP switch set-
ting #20 enabled. The maximum loop voltage drop is speci?ed with a
20.0mA input current.
(3) Temperature Drift: Temperature drift of zero and temperature drift
of gain are both speci?ed with the meter con?gured for range #20
with 4mA adjusted (using R3) to read "0000" ±1 count, and 20mA
adjusted (using R7) to read "19000" ±2 counts.
Physical/Environmental
"1_ _ _ " for positive inputs
The temperature drift of gain is proportional to the full scale range
being used. It is typically less pronounced at the lower range set-
Operating Temperature
0
–
+50
°C
tings, that is, if the observed gain drift of a particular meter is +12
Storage Temperature
Humidity (non-condensing)
Case Material
Weight
–40
0
– +75
– 95
Polycarbonate
0.1 ounces (28 grams)
°C
°C
counts when reading "19000" on range #20 at 40°C, the same
meter will most likely have a drift of only +6 counts when reading
"9000" on range #12 at 40°C.
The normally very accurate autozeroing feature of the DMS-40PC-
4/20S's internal analog-to-digital converter (A/D) is not a factor in
determining the meter's zero-reading stability over temperature due
to the fact that an offset voltage is applied to the A/D's LO input.
Ordering Information
This offset voltage is used to null the voltage developed with a 4ma
input. To function properly, the autozeroing feature found in most
DMS-40PC-4/20S-5RS
DMS-40PC-4/20S-5GS
DMS-40PC-4/20S-5RL
DMS-40PC-4/20S-5RH
DMS-40PC-4/20S-24RL
DMS-40PC-4/20S-24RS-I
DMS-40PC-4/20S-24RH-I
DMS-40PC-4/20S-24GS-I
DMS-BZL1
DMS-BZL2
DMS-30-CP
+5V supply, standard-intensity red LEDs
+5V supply, standard-intensity green LEDs
+5V supply, low-power red LEDs
+5V supply, high-intensity red LEDs
+7.5V to +32V supply, low-power red LEDs
+24V isolated supply, standard-intensity red LEDs
+24V isolated supply, high-intensity red LEDs
+24V isolated supply, standard-intensity green LEDs
Panel-mount bezel assembly
Panel-mount bezel assembly with sealing gasket
Panel cutout punch
digital panel meters requires both A/D inputs to remain at zero volts
with varying temperature. The meter's zero-reading stability over
its speci?ed operating temperature is affected by the drift of three
terms: the voltage developed by the meter's offset circuitry; the volt-
age developed across the meter's input resistor(s) with a 4mA input;
and the stability of the applied 4mA input signal itself. In the lower
DIP switch settings ( ranges #1-4), the meter's parasitic etch and
switch interconnect resistances also contribute a small error.
The meter's performance with regards to span stability over tem-
perature is affected by the drift of the meter's gain circuitry and the
drift of the input resistor(s). To counter these drifts in applications
requiring the utmost in temperature stability, where possible, the
meter should be calibrated at its anticipated operating temperature.
For these applications, use of the DMS-40PC-4/20S-5RL model is
highly recommended because of its inherently lower power con-
A panel-mount retaining clip is supplied with each meter.
sumption and self-heating.
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MPM_DMS-40PC-420.D03 Page 2 of 6
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相关代理商/技术参数
DMS-40PC-4/20S-5GS
功能描述:数字面板表 4-20mA 4.5Digit+5V Std Green 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-40PC-4/20S-5GS-C
功能描述:数字面板表 4-20mA 4.5Digit+5V Std Green 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-40PC-4/20S-5RH
功能描述:数字面板表 4-20mA 4.5Digit+5V Hi-Intense Red 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-40PC-4/20S-5RH-C
功能描述:数字面板表 4-20mA 4.5Digit+5V Hi-Intense Red 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-40PC-4/20S-5RL
功能描述:数字面板表 4-20mA 4.5Digit+5V Low Power Red 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-40PC-4/20S-5RL-C
功能描述:数字面板表 4-20mA 4.5Digit+5V Low Power Red 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-40PC-4/20S-5RS
功能描述:数字面板表 4-20mA 4.5Digit+5V Std Red 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-40PC-4/20S-5RS-C
功能描述:数字面板表 4-20mA 4.5Digit+5V Std Red 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