DMS-05V MURATA | Alldatasheet
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0-5V and 0-10V Input 3½ Digit, LED Display Process Control Monitors MPM_DMS20pc_5V.B04 Page 1 of 4 For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 DATEL's DMS-20PC-0/5 Series are the world's smallest, full-featured, 0-5V input process control monitors. Their large, easy-to-read, 0.37"/9.4mm LED displays are available in a choice of 4 LED color/intensity options: standard red, standard green, super-bright red, and low-power red. Two power supply input ranges are also available: the industry-standard +5V and a wide-range +5V to +40V (which typically draws 9mA at +24V). Gain (span) and offset (zero) adjustments are performed with on-board, precision, 20-turn potentiometers. All decimal-point and range-change selections are made on an 8-position, vibration-resistant, gold-plated DIP switch. Unlike competitive meters, there are no jumpers or solder gaps to open or close, and to further enhance reliability, the entire assembly utilizes 100% soldered connections. Both power-supply and input-signal connections are made via reliable screw-type terminal blocks. The DMS-20PC-0/5's DIP switch and potentiometers accommodate hundreds of input- voltage/output-reading combinations. This practically eliminates the need for more costly, long-lead-time, factory "specials" in applications which use several different-range meters. A supplied bezel assembly––featuring metal fasteners and a rubber gasket––simplifies panel mounting and also provides excellent resistance to environmental dust and moisture. All these outstanding features combine to make the DMS-20PC-0/5 the perfect meter for prototype and OEM, 0-5V input, process control monitoring.
FEATURES
N Accepts 0-5V and 0-10V inputs N Large, easy-to-read, 0.37"/9.4mm LED display N Choice of 5 LED power/color options N High input impedance, 100kΩ N +5V to +40V model draws 9mA typ. N Miniature size: 1.38" x 1.25" x 0.95" N High-quality, 20-turn, span (gain) and zero (offset) adjustments N DIP-switch selectable range and decimal points N Vibration-resistant package; Reliable screw-terminal input connections N Hundreds of different input/readout combinations Ḥ DP3DP2DP1 TB2 DMS-20PC-0/5 Signal Input TB1 Zero Adjust R3 R7 Gain Adjust Band-Gap Reference Circuit HI LO+5V –5V 3½ Digit A/D Converter +5V–5V DIP Switches +5V DC/DC Converter Power Supply Input DATA –5V N.C. N.C. ON 1 23 4 5678 12 12 SIMPLIFIED SCHEMATIC DIAGRAM Figure 1. DMS-20PC-0/5 simplified schematic
0-5V and 0-10V Input 3½ Digit, LED Display Process Control Monitors MPM_DMS20pc_5V.B04 Page 2 of 4 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com OPERATING AND SETUP INSTRUCTIONS TECHNICAL NOTES DMS-20PC-0/5-5RS-C +5V supply, standard-intensity red LED's DMS-20PC-0/5-5GS-C +5V supply, standard-intensity green LED's DMS-20PC-0/5-5BS-C +5V supply, bright blue LED's DMS-20PC-0/5-5RL-C +5V supply, low-power red LED's DMS-20PC-0/5-5RH-C +5V supply, high-intensity red LED's DMS-20PC-0/5-24RL-C +5V to +40V supply, low-power red LED's DMS-PS1-CM-C +5V/1.0A AC/DC power supply module DMS-PS4-CM-C +24V/0.45A AC/DC power supply module DMS-PS7-CM-C +24V/0.7A AC/DC power supply module DMS-20-CP Panel cutout punch As shipped, the DMS-20PC-0/5 is factory calibrated to read "000" for a 0.0V input and "1999" for a 5.0V input. The following worst-case procedure assumes the DMS-20PC-0/5 is completely mis-adjusted, i.e., both potentiometers and the DIP switches are randomly set. 1. Set R7 (full scale span/gain adjust) and R3 (zero/offset adjust) fully clockwise, roughly 22 turns, and place SW1-SW8 to OFF (down position). 2. Select DIP switch setting #1 in Table 1. 3. Apply a precision 0.0V input and adjust R3 until the meter's display reads "000". 4. Apply a precision 5.0V input and adjust R7 until the meter's display reads "1999". Repeat steps 3 and 4 to make sure the adjustments do not affect one another. 5. Select the appropriate decimal point by setting SW6, SW7 or SW8 to ON (DP1, DP2 or DP3 respectively). NOTE: The "000" to "1999" display readings referred to in the instructions above are for illustrative purposes only. If other display readings such as "000" to "1200" are desired, refer to the DIP- Switch Settings Tables for SW1-SW4 settings. (SW5 is reserved for future use, it has no affect on display operation.) The initial setting of R3 and R7 fully clockwise is recommended in the adjustment procedure for all the following examples. ~ The DMS-20PC-0/5 can also be used in most 0-10V applications. See the section on 0-10V inputs for more information. See Note 3 on Table 1. INPUT LO (TB1 "–LO") is internally connected to the power return (TB2 "–V"). Overvoltage specifications apply to the INPUT HI (TB1 "+HI") connection. 1. Input Configuration: The DMS-20PC-0/5 has its input low terminal (TB1 "LO") internally connected to the power supply ground terminal (TB2 "–V"). This connection effectively places the meter's input in a single-ended configuration. In some applications, single-ended inputs can cause ground-loop induced errors (the meter's display becomes unstable or bounces). This occurs because the LED drive currents flow through both the –V terminal and the signal LO terminal. If suspected ground-loop errors are encountered, and the input signal LO terminal is externally connected to –V somewhere else in the system, try removing the connection to TB1 "LO". Inputs which have no ground-return connection to –V (commonly referred to as "floating inputs") must have their most negative potential tied to TB1 "LO". Please consult DATEL for more information. Applications which require electrical isolation between the input signal source and the system power supply must use a separate transformer-isolated supply to power the meter. 2. Panel Mounting: In most standard through-the-panel installations, the DMS-20PC-0/5 must be secured to the panel with DMS-BZL4 bezel assemblies (see the Mechanical Specifications section for more information). Performance/Functional Specifications Typical at TA = +25°C, unless otherwise noted. Inputs Min. Typ. Max. Units Full Scale Input Range~ 4.9 5.0 5.1 Volts Input Impedence 100 – 140 kΩ Overvoltage Protection – – ±40 Volts Performance Sampling Rate 2.5 reading per second Accuracy (1 minute warm-up): ±0.05%FS ±1 Count Temperature Drift (0 to +60°C) – ±0.15 ±0.3 Cnts/°C Power Supply Requirements DMS-20PC-0/5-5RS (@90mA max.) +4.75 +5.00 +5.25 Volts DMS-20PC-0/5-5GS (@120mA max.) +4.75 +5.00 +5.25 Volts DMS-20PC-0/5-5RL (@15mA max.) +4.75 +5.00 +5.25 Volts DMS-20PC-0/5-5RH (@90mA max.) +4.75 +5.00 +5.25 Volts DMS-20PC-0/5-24RS (@15mA max.) +4.75 – +40.0 Volts Display Display Type and Size 3½ digit, 0.37"/9.4mm high LED Polarity Indication "–" for negative VIN Overrange Indication "–1_ _ _" for negative inputs "1_ _ _" for positive inputs Physical/Environmental Operating Temperature 0 – +60 °C Storage Temperature –20 – +75 °C Humidity (non-condensing) 0 – 95 % Case Material Polycarbonate Weight 0.6 ounces (17 grams)
Ordering Information
Note: A DMS-BZL4 bezel assembly with a sealing gasket is supplied with each meter.
Table 1. 0-5V DIP-Switch Settings always be possible to obtain the exact desired display readings.
- Desired display readings are:
via SW7. Apply 0.0V and adjust R3 so the display reads "0.00". Apply 5.0V and adjust R7 so the display reads "6.00".
- Desired display readings are:
used. Set SW6, SW7 and SW8 to OFF.
- Desired display readings are:
5.0V and adjust R7 so the display reads ".250". when the DMS-20PC-0/5 is used with 0-10V inputs.
- Desired display readings are:
Table 2. 0-10V DIP-Switch Settings
- Desired display readings are:
0-5V and 0-10V Input 3½ Digit, LED Display Process Control Monitors MPM_DMS20pc_5V.B04 Page 4 of 4 Murata Power Solutions, Inc. 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. © 2008 Murata Power Solutions, Inc. USA: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 and 14001 REGISTERED Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com 11/25/08 TOLERANCES: 2 PL DEC ±0.02 (±0.51) 3 PL DEC ±0.010 (±0.254) WIRE SIZE: 18 to 26 AWG (Solid or stranded) STRIPPING LENGTH: 0.20" (5.08mm) Front View DP2 (SW7) DP3 (SW8) DP1 (SW6) 0.80 (20.3) 0.040 (1.02) 1.30 (33.0) 1.38 (35.1) 0.88 (22.4) 0.95 (24.1)MADE IN USA DMS-20PC-0/5 ® ® 1.25 (31.8) 0.040 (1.02) 0.040 (1.02) 0.44 (11.2) TYP. 12 1 + – + – ON 1 23 4 5678 +– +– Back View DIP Switches Zero/Offset Adjust Gain/Span Adjust TB1 Signal Input TB2 Power Input #2-56 INSERT 0.156 (3.96) DEEP FRONT VIEW 1.280 (32.51) 0.187 (4.75) 1.826 (46.38) 0.838 (21.29) 1.626 (41.30) 1.07 (27.18) INTERNAL CORNER RADII: 0.032 (0.81) MAX. 0.093 (2.362) DIA (4 REQUIRED) 0.116 (2.95) PANEL CUTOUT ® ® BEZEL INSTALLATION BEZEL PANEL GASKET MECHANICAL SPECIFICATIONS BEZEL INSTALLATION AND RECOMMENDED DRILL AND PANEL CUTOUT