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: 6-6354-2025

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.

DS-0341B

09/02

DMS-EB-AC/DC

®

®

4. DC Current Measurements (Use +/-200mV Range DMS-30-0 Meters):

When using R2 location for a dc current-shunt, please note that the pc-

board copper traces which short out R1 can only carry currents up to

0.2A (200mA). However, dc currents up to 2A can be accommodated if a

20AWG jumper wire is soldered in location R1. Be sure R2 has a

sufficient power rating to safely carry the full load current. Refer to DMS

Application Note 6 for more information on dc ammeters.

current in Amperes.

2. Configure the DMS-EB for span adjust using the procedure previously

outlined for the DMS-30-0 (+/-200mV range).

3. Apply the input signal (current) to TB1 (+) HI and (–) LO.

4. Adjust R4 for desired full scale readings.

5. Enable the appropriate decimal point using SG1, SG2, or SG3.

Example

Using a DMS-30-0 meter, a 0.100 Ampere input must read “100.0” mA on

the display.

R2 = 1000 / (0.1 x 10000)

R2 = 1 Ohm

Enable DP3 via SG3 for a display reading of “100.0”.

www.datel.com

ISO 9001

REGISTERED

Applications

100-264Vac POWER SUPPLY BOARD FOR DMS-30 METERS

Figure 3. R4 and R5 Installation

Figure 4. R1 and R2 Installation

12

R3

SG9

SG11

SG6

SG10

SG14

SG7

SG8

SG13

SG4

SG12

TB1

HI(+)

LO(–)

1

2

DP4

R5

R4

12

R3

SG9

SG11

SG6

SG14

SG7

SG8

SG13

SG4

SG12

TB1

HI(+)

LO(–)

1

2

DP4

R1

R2