DMS-30PC-4/20S-5RS View Datasheet(PDF) - DATEL Data Acquisition products
Part Name
Description
Manufacturer
DMS-30PC-4/20S-5RS
DATEL Data Acquisition products
DMS-30PC-4/20S-5RS Datasheet PDF : 4 Pages
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DMS-30PC-4/20S
3½ D I G I T, 4 - 2 0 m A I N P U T, L E D D I S P L AY M E T E R S
Performance/Functional Specifications
Typical at TA = +25°C, unless otherwise noted.
Current Loop Input
Full Scale Input Range
Input Impedance
Voltage Drop
Overcurrent Protection
Performance
Sampling Rate
Accuracy (1 minute warm-up)
Temperature Drift (0 to +60°C)
Power Supply Requirements ➀
DMS-30PC-4/20S-5RS
DMS-30PC-4/20S-5GS
DMS-30PC-4/20S-5RH
DMS-30PC-4/20S-5RL
DMS-30PC-4/20S-24RL
DMS-30PC-4/20S-24XX-I Models
Display
Display Type and Size
Polarity Indication
Overrange Indication
Physical/Environmental
Operating Temperature
Storage Temperature
Humidity (Non-condensing)
Case Material
Weight
Min.
+3.5
--
--
--
Typ.
--
100
--
--
Max.
+22
--
2.0
±40
Units
mA
Ω
Volts
mA
2.5 readings per second
±0.05%FS ±1 Count
--
±0.15 ±0.3 Cnts/°C
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 225mA max.
+4.75 to +5.25Vdc at 20mA max.
+7.5 to +32Vdc at 30mA max.
+21.6 to +26.4Vdc at 60mA max.
3½ digit LED, 0.56"/14.2mm high
"–" for negative readings
"–1_ _ _" for negative inputs
"1_ _ _ " for positive inputs
0
--
+60
°C
– 40
--
+75
°C
0
--
95
%
Polycarbonate
1 ounce (28 grams)
DIP-Switch Settings Table ➁
Display Reading
SW1 SW2
1. 000 to 100-300
2. 000 to 400-600
3. 000 to 700-1999
4. ±100
5. ±200 to ±300
6. ±400 to ±600
7. ±700 to ±1900
On
On
Off
On
On
Off
On
On
On
On
On
Off
Off
Off
SW3
On
Off
Off
On
Off
Off
Off
SW4
Off
Off
Off
Off
Off
Off
On
➀ Input Grounding: Except for the "-I"suffix models which feature isolated current
loop inputs, all other DMS-30PC-4/20S meters are supplied with their 4-20mA
negative-input terminals (TB1-2, "-") internally connected to their power supply
ground terminal (TB2-2, “-V”). This single-ended input configuration is compatible
with most grounded-referenced 4-20mA transmitters.
Applications in which the DMS-30PC-4/20S and its associated 4-20mA
transmitter are connected to a common ground and the transmitter drives two or
more loads (for example, the meter in series with a PLC) must have the meter
connected as the first device in the current loop, that is, closest to the system
ground (see Figure 2). If this is not possible and/or the meter must be connected
in the middle of the current loop, then'-I' suffix models must be used to provide
the required isolation between the meter’s current loop input and the power
supply ground ("-V"). See Figures 2, 3, 4, and 5 for typical loop connections.
➁ When looking up DIP-switch settings in the Table and the desired display
readings happen to fall between two switch settings, try performing the
adjustments with both settings to determine which one offers the better
settability. Please keep in mind that the DMS-30PC meter (from which the
DMS-30PC-4/20S is derived) has an accuracy specification of ±2 counts
(max.). Thus, it may not always be possible to obtain the exact desired
display reading.
Order on-line at www.datel.com
Ordering Information
DMS-30PC-4/20S-5RS
DMS-30PC-4/20S-5GS
DMS-30PC-4/20S-5RL
DMS-30PC-4/20S-5RH
DMS-30PC-4/20S-24RL
DMS-30PC-4/20S-24RS-I
DMS-30PC-4/20S-24RH-I
DMS-30PC-4/20S-24BS-I
DMS-30PC-4/20S-24GS-I
+5V supply, standard-intensity red LED's
+5V supply, standard-intensity green LED's
+5V supply, low-power red LED's
+5V supply, high-intensity red LED's
+7.5V to +32V supply, low-power red LED's
+24V isolated supply, standard-intensity
red LED’s
+24V isolated supply, high-intensity red LED’s
+24V isolated supply, high-intensity blue LED’s
+24V isolated supply, standard-intensity
green LED’s
DMS-BZL1
Panel-mount bezel assembly
DMS-BZL2
Panel-mount bezel with sealing gasket
DMS-30-CP
Panel cutout punch
A panel-mount retaining clip is supplied with each model.
Operating and Setup Instructions
As shipped, the DMS-30PC-4/20S is factory calibrated to read "000"
for a 4mA input and "1999" for a 20mA input. The following worst-case
procedure assumes the DMS-30PC-4/20S is completely mis-adjusted, i.e.,
both potentiometers and the DIP switches are randomly set.
1. Set R7 (gain/span adjust) and R3 (zero/offset adjust) fully clockwise,
roughly 20 turns, and place SW1-SW8 to OFF (down position).
2. Set SW1 to ON (up position). See DIP switch setting #3.
3. Apply a precision 4mA input, with proper polarity, and adjust R3 until
the meter's display reads "000".
4. Apply a precision 20mA and adjust R7 until the display reads "1999".
Repeat 3 and 4 to make sure adjustments do not affect one another.
5. If desired, select the appropriate decimal point by setting either SW5,
SW6 or SW7 to ON (DP1, DP2 or DP3 respectively).
NOTE: If a display reading other than "000" to "1999" is desired,
refer to the DIP-Switch Settings Table for SW1-SW4 settings.
Examples
1. Desired display readings are:
ON
4mA ="0.00"
20mA = "2.00"
1
2
34
56
7
8
Use DIP-switch setting #1 and enable decimal point DP2 via SW6.
Apply 4mA and adjust R3 so the display reads "0.00". Apply 20mA and
adjust R7 so the display reads "2.00".
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
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