dms-eb-ac Murata Manufacturing Co., Ltd, dms-eb-ac Datasheet

dms-eb-ac

Manufacturer Part Number

dms-eb-ac

Description

100-264vac Power Supply Accessory Board For Dms-30pc/lcd Panel Meters

Manufacturer

Murata Manufacturing Co., Ltd

Datasheet

1.DMS-EB-AC.pdf (4 pages)

Current page: 1 of 4
Download datasheet (174Kb)

FEATURES

SIMPLIFIED SCHEMATIC

Allows meters to operate from 100 to 240Vac

(50/60Hz)

Screw-type terminal block connections

Provides 1500V isolation between AC supply

and input signal

Has prototyping features of the standard DMS-

EB board

On-board solder gaps for decimal point place-

ment

Same size as DMS-30/40 meters 2.02"

(51.3mm)L x 0.82" (20.8mm)W

Low cost

REF. OUT/DP4

(–) INPUT LO

(+) INPUT HI

www.murata-ps.com/rohs

REF. OUT

COMMON

ANALOG

For full details go to

REF. IN

+1.23V

Refer to Mechanical Layout drawing for components and

solder gap location.

Components are user-supplied and not part of the

standard product.

SG5 is not used

SG4

SG13

SG14

SG9

SG8

SG12

10.5k

50k

PRODUCT OVERVIEW

Figure 1. DMS-EB-AC/DC Simpliﬁed Schematic Diagram

models only), as well as all DMS-30LCD and DMS-40LCD (non-backlit, +5V-powered models only) panel

meters from 100-264Vac (50/60Hz). The on-board AC/DC converter provides an isolated +5Vdc to power

the meter’s electronics, while providing 1500Vac isolation between the AC supply and the input signal

being measured. Line power and input signals connect to two rugged, screw-style terminal blocks (TB1 &

TB2) permanently mounted on the DMS-EB-AC/DC. This type of terminal block provides reliable mechani-

cal connections and eliminates the need for any extra wiring harness connectors.

are required when the meter must be scaled to display non-standard input ranges. The DMS-EB-AC/DC

has provisions for such common applications as attenuation of high input voltages, gain (span) and offset

(zero) adjustments, and direct decimal point placement. The DMS-EB-AC/DC is compatible with all four

input versions of the DMS-30 Series meters (±200mV, ±2V, ±20V and ±200V). Solder gaps, conveniently

placed on the board, are easily bridged or cut to conﬁgure the board to meet each application’s speciﬁc

requirements.

www.murata-ps.com

This low-cost accessory board provides an easy way of powering all DMS-30PC-X-RL (red low-power

The DMS-EB-AC/DC board includes provisions for installing several usersupplied components that

SG11

SG7

TB1

SG10

(+)

SG6

(–)

Accessory Board for DMS-30PC/LCD Panel Meters

Technical enquiries email: sales@murata-ps.com, tel:

TB2

–V

CONVERTER

DC/DC

–V

OUT

DMS-EB-AC/DC

100-264Vac Power Supply

Open solder gap

Closed solder gap

MPM_DMS-EB-AC/DC.B01 Page 1 of 4

SG3

SG2

SG1

+5V

SUPPLY

RETURN

DP 3

DP 2

DP 1

+1 508 339 3000

Related parts for dms-eb-ac

dms-eb-ac Summary of contents

Page 1

... The DMS-EB-AC/DC board includes provisions for installing several usersupplied components that are required when the meter must be scaled to display non-standard input ranges. The DMS-EB-AC/DC has provisions for such common applications as attenuation of high input voltages, gain (span) and offset (zero) adjustments, and direct decimal point placement. The DMS-EB-AC/DC is compatible with all four input versions of the DMS-30 Series meters (± ...

Page 2

... DMS-EB-AC/ DC should have its own fuse. Refer to the fusing section for more information Supply Fusing: The DMS-EB-AC/DC board does not have an internal fusing device. If required, a 0.2A slow-acting fuse is recom- mended. Be sure the fuse is rated for the applied line voltage. ...

Page 3

... CAUTION: Do not apply inputs greater than +/-250Vdc. 1. Open SG10. For applications in which input voltages exceed ±100Vdc, also cut the 2 adjoining traces. 2. Conﬁgure the DMS-EB-AC/DC for span adjust using the procedure previously outlined. 3. Calculate values for R1 and R2 as follows: A typical value for R1 is 1MΩ. The sum should be between 50kΩ ...

Page 4

... Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: MPM_DMS-EB-AC/DC.B01 Page LO(–) +1 508 339 3000 ...

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