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Part: DMS-20S-24RS-I
Category:
Optoelectronics
-> Display
-> LEDs
-> LED Lamps
-> Segment Displays
Description:
Company: Datel, Inc.
Datasheet: Download DMS-20S-24RS-I datasheet File size : 384 kB
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Datasheet text preview:
®
®
Now available with brilliant blue LED's!
DMS-30PC-4/20S
4-20mA Input 3½ Digit Panel Meters with Full-Size LED Displays
New +24V Isolated-Power Models
Order on-line at www.datel.com
Features
· Full-size, 0.56" (14.2mm), red , blue or green LED's · Low-power or high-intensity LED's optional · Single +5V or optional +7.5-32V supply · +24V Isolated-power models · Low power consumption, 15mA from +5V · 100 impedance, 2V loop drop · DIP-switch selectable range and decimal points · Hundreds of different input/readout combinations · Vibration-resistant package; Reliable screw-terminal input connections · High-quality, 20-turn, gain/span and zero/offset adjust potentiometers · Miniature size: 2.17" x 0.92" x 1.02" 55mm x 23mm x 27mm
The DMS-30PC-4/20S Series of 4-20mA current-loop-input, 3½ digit, LED display panel meters offer an outstanding combination of electrical performance, display readability, ease-of-use, and long-term reliability. Each of the 5 models features a large (0.56"/14.2mm), red, blue or green, LED display. Low-power or high-intensity red models are optional. Power supplies can be a single +5V or an optional, widerange +7.5-32V (24V nominal). All DMS-30PC-4/20S meters are constructed using DATEL's super-reliable, field-proven, epoxy-encapsulated DMS-30PC digital voltmeters. The entire assembly utilizes 100% soldered connections. These are the most rugged, 4-20mA input, panel meters in the world. Gain (span) and offset (zero) adjustments are both performed with highprecision, 20-turn potentiometers. All decimal point and range-change settings are made on a gold-plated, vibration-resistant, DIP switch; there are no cumbersome solder gaps or jumpers to contend with. Connections to the current loop and the power source are both made on a rugged, four-position, screw-type terminal block. The DMS-30PC-4/20S's user-friendly design accommodates virtually hundreds of different input-current/output-reading combinations. This eliminates the majority of requirements for more costly, long-lead-time, factory "specials" especially in applications requiring several different-range meters. A bezel assembly, featuring secure screw fasteners and an EPDM rubber gasket, is available for applications requiring moisture and/or dust resistance.
+5V D M S -3 0 P C -1
3 ½ D IG IT A /D CONVERTER
DATA
R3 ZERO A D JU S T
R7 G A IN A D JU S T
DP1
DP2
DP3
B A N D -G A P RE.ERENCE C IR C U IT ON +5V 1 2 3 4 5 6 7
N .C . +5V (S W 1 ) D IP S W IT C H E S 8 VO LTAG E CONVERTER 1
TB1 1
2 SG9
TB2 1
2
+
V is not connected to meter ground
on `-I' suffix models.
+
4 -2 0 m A L O O P IN P U T
+V V PO W ER SU PPLY IN P U T
Figure 1. DMS-30PC-4/20S Simplified Schematic
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-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 A Y 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 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 0 40 0 ---+60 +75 95 °C °C % 3½ digit LED, 0.56"/14.2mm high "" for negative readings "1_ _ _ " for negative inputs "1_ _ _ " for positive inputs +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. -2.5 readings per second ±0.05%FS ±1 Count ±0.15 ±0.3 Cnts/°C Min. + 3.5 ---Typ. -100 --Max. +22 -2.0 ± 40 Units mA Volts mA 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
DM S - 3 0 P C - 4 / 2 0 S - 5 R S DM S - 3 0 P C - 4 / 2 0 S - 5 G S DMS - 30PC-4/20S-5RL DMS - 30PC-4/20S-5RH DM S - 3 0 P C - 4 / 2 0 S - 2 4 R L DMS-30PC-4/20S-24RS-I DMS-30PC-4/20S-24RH- I DMS-30PC-4/20S-24BS-I DMS-30PC-4/20S-24GS-I DMS-PS4-CM DMS-PS7-CM DMS-BZL1 DMS-BZL2 DMS - 30-CP +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 +24V/0.45A AC/DC power supply module +24V/0.7A AC/DC power supply module Panel-mount bezel assembly Panel-mount bezel with sealing gasket 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.
Polycarbonate 1 ounce (28 grams)
DIP- Switch Settings Table
Display Reading 1. 2. 3. 4. 5. 6. 7. 000 to 100-300 000 to 400-600 000 to 700-1999 ±100 ±200 to ±300 ±400 to ±600 ±700 to ±1900 SW1 On Off On On On On Off SW2 On On Off On On Off Off SW3 On Off Off On Off Off Off SW4 Off Off Off Off Off Off On
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. 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
Examples
1. Desired display readings are: 4mA ="0.00" 20mA = "2.00"
1 2 3 4 ON
5
6
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
2
3 ½ 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
DMS-30PC-4/20S
2. Desired display readings are: 4mA = "100" 12mA = "000" 20mA = "100"
1 2 3 4
ON
3. Desired display readings are:
5 6 7 8
ON
4mA = ".000" 12mA = ".250"
1
2
3
4
5
6
7
8
Use DIP-switch setting #4. Apply 12mA and adjust R3 so the display reads "000". Apply 20mA and adjust R7 so the display reads "100". Apply 4mA and the display should read "100". For these display readings, no decimal points are used. Set SW5, SW6 and SW7 to OFF.
This example is not as straightforward as the previous two. Notice that 12mA is exactly halfway between 4mA and 20mA. If we assume the input could go up to 20mA, the display reading would be: 2 x .250 or ".500". From the table, we can select DIP-switch setting #2 and enable DP1 via SW5. Apply 4mA and adjust R3 so the display reads ".000". Apply 12mA and adjust R7 so the display reads ".250".
CONNECTION DIAGRAMS
+24V
+24V
+ +
S IN G L E -E N D E D T R A N S M IT T E R (T B 1 -1 ) 4 -2 0 m A
+V
(T B 2 -1 )
+
(T B 1 -1 ) L O O P -P O W E R E D T R A N S M IT T E R
+V
(T B 2 -1 )
+
D M S -3 0 P C -4 /2 0 S -2 4 R L
+
D M S -3 0 P C -4 /2 0 S -2 4 R L
4 -2 0 m A N .C . (T B 1 -2 )
24V G R O U N D
(T B 1 -2 )
V (T B 2 -2 )
V (T B 2 -2 ) 24V G R O U N D
Figure 2. Typical Connections for Single-Ended Transmitters Driving Single-Ended +24V Powered Meters.
Figure 3. Typical Connections for Loop-Powered Transmitters Driving Single-Ended Meters.
+24V +V (T B 2 -1 ) (T B 2 -2 ) V
D M S -3 0 P C -4 /2 0 S -2 4 R L -I
+24V
+5V
+
+
+ +
(T B 1 -1 ) 4 -2 0 m A 4 -2 0 m A (T B 1 -2 )
+V
(T B 2 -1 )
+
+
PLC orO TH ER S IN G L E -E N D E D D E V IC E
(T B 1 -1 ) 4 -2 0 m A
+
D M S -3 0 P C -4 /2 0 S -2 4 R L
S IN G L E -E N D E D T R A N S M IT T E R
LO O P T R A N S M IT T E R
24V G R O U N D
24V G R O U N D
(T B 1 -2 )
V (T B 2 -2 ) 5V G R O U N D
Figure 4. Typical Connections for Isolated-Supply Meters in Series with an Auxiliary Device
Figure 5. Typical Connections for +5V Powered Meters. Note that 5V Ground and 24V Ground are Tied Together Inside the Meter.
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
3
DMS-30PC-4/20S
3 ½ 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
Mechanical Specifications
MECHANICAL DIMENSIONS: Inches (mm) TOLERANCES: WIRE SIZE: STRIPPING LENGTH: 2 PL DEC ±0.02 (±0.51) 3 PL DEC ±0.010 (±0.254) 18 to 26 AWG (Solid or stranded) 0.20" (5.08mm)
1.33 (33.8) 1 1.02 (25.9)
0.040 (1.02)
2.09 (53.09) 2.17 (55.12) 1 Depth dimension for the DMS-30PC-4/20S-24RL model only.
Back View
Zero/Offset Adjust
12
R3 Zero Adjust D1 R10
DIP Switches
ON
Front View
1 SW1
R12 R6
1
2
3
4
5
6
7
8
SG10 R9 R1 R8
TB1 +
TB2 +
U2
R7 Gain Adjust
SG9
1
R5 R4 R2
2
1
2
Gain/Span Adjust
++
Loop Input
Power Input
DP1 (SW5)
DP2 (SW6)
OPTIONAL BEZEL (DMS-BZL1 and DMS-BZL2)
#2-56 INSERT 0.156 (3.96) DEEP 0.187 (4.75)
FRONT VIEW
1.270 (32.26)
® ®
2.55 (64.77)
RECOMMENDED DRILL AND PANEL CUTOUT DIMENSIONS
INTERNAL CORNER RADII: 0.032 (0.81) MAX. 0.116 (2.95)
1.07 (27.18)
PANEL CUTOUT
0.878 (22.30)
2.118 (53.80) 2.35 (59.69)
® ®
0.093 (2.362) DIAMETER (4 REQUIRED) ONLY WHEN USING OPTIONAL BEZEL ASSEMBLY
A panel-mount retaining clip is supplied with all models
®
®
ISO 9001
REGISTERED
DS-0337D 07/01
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com Email: sales@datel.com
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01 DATEL GmbH München, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
MADE IN USA
0.096 (2.44)
DMS-30PC-4/20S
DP3 (SW7)
M A D E IN U S A
RETAINING CLIP INSTALLATION
®
®
MADE IN USA
0.04 (1.02)
0.84 (21.34) 0.92 (23.37)
B E Z E L IN S T A L L A T IO N
PANEL
O P T IO N A L GASKET BEZEL
PANEL
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