To view the DP20 spec sheet and manuals visit us at https://www.omega.com/pptst/DP20.html
3. Additional documentation
1. Front view
1.
Open the instrument (see section 7).
2.
Select the jumpers for the desired signal range (see section 8).
3.
Close the instrument (see section 7).
4.
Connect the signal and the power (see section 6).
5.
Configure the instrument from the ‘Configuration menu’ (see section 9).
6.
If you need additional information, see section 3.
5. Installation and start-up
6. Connections
7. How to open the instrument
DP20
Model
-
Option 1
-A1 (1 relay)
-M1 (analog output)
-S1 (Modbus RTU)
-(empty)
-
Option 2
-A2 (1 relay)
-(empty)
4. How to order
2. Dimensions and panel cut-out (mm)
8. Internal structure and jumpers for range selection
MQS5802_0618
Key ‘LE’
Key ‘SQ’
1. Exit the menu
Key ‘UP’
1. Enter into ‘Fast access’
2. Next value
Units
Alarm 1 and 2
Fuse
Option M1 (4/20 mA)
Option A1 (relay)
Protection fuse value :
250 mA time-lag for power voltage > 50 Vac/dc
400 mA time-lag for power voltage < 50 Vac/dc
A B C
Common
Vexc.
4/20 mA
A B C
NC
Com.
NO
Option S1 (Modbus RTU)
A B C
Common
B
A
Option 2
Option 1
1 2 3 4 5
8 9 0
-Vdc / Neutral
+Vdc / Phase
Not Connected
A B C
Option A2 (relay)
NC
Com.
NO
G I
H
G I
H
~
Vac, ±Vdc, resistance, mA, pot
therm, Pt+, Ni+, PTC+, NTC+
~
600 Vac,
~
200 Vac
±600 Vdc, ±200 Vdc
~
5 Aac, ±5 Adc
neutral, 0 V, common
Vexc, Pt100 3 wires, pot+
external control
NTC probes ‘R
25
’
(configurable)*
Jumpers
‘S’
Jumper
‘T’
Range
of measure
Accuracy
(% of reading)
Beta
(configurable)
10K
F K
4-5
-60
º
C to
150
º
C
<1.5 % of
reading
3500
*‘Beta’ configurable (2000 to 5500). R
25
configurable. Resistance measure from 100R to 1MR.
AC ranges
Scalable
Jumpers
‘S’
Jumper
‘T’
Accuracy
(% FS)
~
600 Vac
from 9999
to -1999
G I
4-5
<0.30 %
(up to 150 Hz)
~
200 Vac
I
~
20 Vac
A I
~
2 Vac
B I
~
200 mVac
C I
~
60 mVac
E I
~
5 Aac
I
<0.50 %
(up to 150 Hz)
~
20 mAac
D I
DC ranges
Scalable
Jumpers
‘S’
Jumper
‘T’
Accuracy
(% FS)
±600 Vdc
from 9999
to -1999
G
4-5
<0.20 %
±200 Vdc
---
±20 Vdc
A
±2 Vdc
B
±200 mVdc
C
±60 mVdc
E
<0.25 %
±5 Adc
- - -
±20 mAdc
D
<0.15 %
PTC probes
Family
Jumpers
‘S’
Jumper
‘T’
Range in ºC
(in ºF)
Total error
KTY-121
F
4-5
-55 / 150 ºC
(-67 / 302 ºF)
<1 º
KTY-210
F H K
KTY-220
F H K
Pt and Ni
probes
Jumpers
‘S’
Jumper
‘T’
Range in ºC
(in ºF)
Total
error
Current at
sensor
Pt100
(3 wires)
F H J
5-6
-200 / 700 ºC
(-328 / 1292 ºF)
<1º
< 900 uA
Pt100
(2 wires)
F H
4-5
-200 / 700 ºC
(-328 / 1292 ºF)
< 900 uA
Pt500
F
-150 / 630 ºC
(-238 / 1166 ºF)
< 90 uA
Pt1000
F
-190 / 630 ºC
(-310 / 1166 ºF)
< 90 uA
Ni100
F H
-60 / 180 ºC
(-76 / 356 ºF)
< 900 uA
Ni200
F H
-60 / 120 ºC
(-76 / 248 ºF)
< 900 uA
Ni1000
F
-60 / 180 ºC
(-76 / 356 ºF)
< 90 uA
Thermocouples Jumpers
‘S’
Jumper
‘T’
Range in ºC
(in ºF)
Total error
(cold junction included)
tc. K
E
4-5
-100 / 1350 ºC
(-148 / 2462 ºF)
<3 º
tc. J
-100 / 1200 ºC
(-148 / 2192 ºF)
tc. E
-100 / 1000 ºC
(-148 / 1832 ºF)
tc. N
-100 / 1300 ºC
(-148 / 2372 ºF)
tc. L
-100 / 900 ºC
(-148 / 1652 ºF)
tc. R
E J
0 / 1768 ºC
(32 / 3214 ºF)
tc. S
0 / 1768 ºC
(32 / 3214 ºF)
tc. T
-100 / 400 ºC
(-148 / 752 ºF)
tc. C
E
0 / 2300 ºC
(32 / 4172 ºF)
<5 º
tc. B
E J
700 / 1820 ºC
(1292 / 3308 ºF)
Resistance
ranges
Scalable
Jumpers
‘S’
Jumper
‘T’
Accuracy
(% reading)
0 to 5 K
from 9999
to -1999
F H K
4-5
<1.5 % of
reading
0 to50 K
F K
Process
signals
Scalable
Jumpers
‘S’
Jumper
‘T’
Accuracy
(% FS)
4/20 mA
from 9999
to -1999
D
1-2
*
<0.15 %
0/10 Vdc
A
<0.20 %
* Place jumper ‘T’ at position 1-2 for +15 Vdc excitation voltage at terminal 5. Optionally,
place jumper ‘T’ at position 4-5 to work with ‘external contact’ at terminal 5.
Potentiometers
nominal value
Scalable
Jumpers
‘S’
Jumper
‘T’
Accuracy
(% FS)
500 R to 20 K
from 9999
to -1999
A
2-3
<0.5 %
!
(active output A-B)
(passive output B-C)
Risk of electric shock. Removing the front cover will grant access to internal
circuits which may be at dangerous voltage. Disconnect the input signal and
the power supply to prevent electric shock to the operator. Operation must be
performed by qualified personnel only.
Use a flat screwdriver to unlock clips ‘D’, C’, ‘B’
and ‘A’, in this order. Remove the front filter.
Gently let the internal boards slide out of the
instrument.
To reinsert the boards in the housing :
1.
make sure that the boards are correctly con-
nected to the displays pins
2.
slide the boards into the housing guides
3.
place the front filter at corner X, and then
insert clips ‘A’, ‘B’, ‘C’ and ‘D’ in this order.
X
A
C
B
D
Internal Jumpers
Opt.1
Opt.2
Opt.1
Display module
Optional modules
Housing
Front filter
Input signal terminal
Jumpers ‘S’
for signal range selection
Displays
F
E
G
H
I
J
D
B
C
A
K
Jumpers not used can be
stored in the following three
‘no contact’ positions.
F
E
G
H
I
J
D
B
C
A
K
6
5
4
3
2
1
Jumper ‘T’
for terminal 5 function selection
DP20 shown smaller
than actual size
Quick installation guide DP20 (page 1/2)
www.omega.com/ DP20.html
Detail of the female
terminal provided.
96 mm
48 mm
91 mm
(including terminal)
16
8
75
(0.63)
(0.31)
(2.95)
Panel
cut-out
92
(3.63)
44
(1.74)
(3.78)
(1.89)
(3.58)
TM
Frequency
Scalable
Jumpers ‘S’
Jumpers ‘T’
Accuracy
(% of reading)
15 Hz to 100 Hz
from 9999
to -1999
select Vac or
Aac range
4-5
<0.15%
of reading
