Omega DP20 User Manual

28
DP20 Economical Multisignal Meter Instruction Manual
The A1 (and A2) modules oer 1 relay output to be installed at slot
Opt.1 (module A2 at Opt.2). The relay installed at Opt.1 is controlled
by alarm 1, and is congured from the ‘Alarm 1’ (‘Alr1’) menu
explained at secon 1.28.3. The relay installed at Opt.2 is controlled
by alarm 2, and is congured from the ‘Alarm 2’ (‘Alr2’) explained
at secon 1.28.3. Relay with 3 contacts (Common, Normally closed,
Normally open) accepng voltages up to 250V @8A.
The A1 and A2 modules can be ordered installed in to a Series C
instrument or standalone for later installaon, as they do not require
soldering or special conguraon..
2. Output and control modules
2.1 Modules A1 and A2 (relay out put) 2.2 Module M1 (analog output)
Opt.1Opt.2
Terminal A, G Common
Terminal B, H NO - Normally open
Terminal C, I NC - Normally closed
Power
G H I A B C
Signal
The M1 module oers 1 analog output at 4/20 mA, isolated, to be
installed at slot Opt1.
The 4/20 mA output signal is fully scalable, both with posive and
negave slopes, and is proporonal to the reading of the instrument.
The mA output can be connected to work in acve loop (the module
provides the power of the loop) or passive mode (the power of the
loop is not provided by the instrument)
Connecons
For an acve 4/20 mA loop, connect terminal A (‘Vexc +15 Vdc’) as
current output and terminal B (‘Signal in mA’) as return of current.
For a passive 4/20 mA loop, connect terminal B (‘signal in mA’) as
current output and terminal C (‘GND’) as return of current.
Terminal A Vexc +15 Vdc
Terminal B Signal in mA
Terminal C Common
Output signal 4/20 mA (acve and passive)
Acve output connect terminal A (+15 Vdc) and B (mA)
R
L
<350 R
Passive output connect terminal C (GND) and B (mA)
R
L
< 700 R
Accuracy <0.5% FS
Response me <100 mSeg. + meter response me
Isolaon 1000 Vdc
Slots allowed Opt.1
Type of relay 3 contact relay (NC, NO, common)
Current maximum 8 A per relay (resisve load)
Voltage maximum 250 Vac connuous
when switching power lines, with overvoltage category 3, maximum
switching voltage is 150Ve to comply with CE safety requirements
.
Isolaon 3500 Ve
Type of terminal plug-in screw terminal, pitch 5.08 mm
Slots allowed Opt.1 for A1 module
Opt.2 for A2 module
NC
Com.
NO
A B C
Opt.1
Common
Vexc
4/20 mA
NC
Com.
NO
PowerSignal

Omega DP20 Specifications

General

Brand	Omega
Model	DP20
Category	Measuring Instruments
Language	English