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DMS-EB-AC/DC View Datasheet(PDF) - DATEL Data Acquisition products

Part Name
Description
Manufacturer
DMS-EB-AC/DC
Datel
DATEL Data Acquisition products  Datel
DMS-EB-AC/DC Datasheet PDF : 4 Pages
1 2 3 4
NEW DESIGN!
Wider Operating Range
1500V Isolation, Easier To Modify
Order on-line at www.datel.com
®
®
DMS-EB-AC/DC
100-264Vac Power Supply
Accessory Board for
DMS-30PC/LCD Panel Meters
Features
? 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 placement
? Same size as DMS-30/40 meters
2.02" (51.3mm)L x 0.82" (20.8mm)W
? Low cost
This low-cost accessory board provides an easy way of powering all DMS-
30PC-X-RL (red low-power 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 mechanical connec-
tions and eliminates the need for any extra wiring harness connectors.
The DMS-EB-AC/DC board includes provisions for installing several user-
supplied 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 compat-
ible 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.
(–) INPUT LO 12
11
(+) INPUT HI
ANALOG 10
COMMON
+1.23V
REF. OUT
REF. OUT/DP4
9
SG13
8
SG4
SG14
R2 
SG10
SG9
R3
10.5k
R 1
Ž
R4
2k
SG7
SG8
R5 Ž
50k
SG11
SG6
+VI N
+VOUT
DC/DC
CONVERTER
–VIN
–VOUT
+
1 +5V
SUPPLY
2
3
SG3
4
SG2
5
SG1
6
5V
RETURN
DP 3
DP 2
DP 1
7
REF. IN
SG12
ΠRefer to Mechanical Layout drawing for components and
solder gap location.
 Components are user-supplied and not part of the
standard product.
Ž R4 and R5 are part of the resistor accessory kit RN-DMS
(see ordering information)
 SG5 is not used
TB1
12
HI LO
(+) (–)
TB2
12
AC AC
LO HI
Figure 1. DMS-EB-AC/DC Simplified Schematic Diagram
Open solder gap
Closed solder gap
DATEL, Inc., Mansfield, MA02048 (USA) ? Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 ??? Email:sales@datel.com ?? Internet: www.datel.com
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