Omega Products DPG1000ADA-15G-1N User Manual
DIGITAL PRESSURE GAUGES
WITH ALARMS AND ANALOG OUTPUT FUNCTIONS
DPG1000ADA
All Models
$
349
DPG1000ADA
AC/DC Powered with
Dual Alarms
DPG1000ADA-300G-1N,
SPECIFICATIONS
Accuracy: ±0.25% FSO or better,
±1 least-significant digit
(includes linearity, hysteresis,
repeatability)
Controls and Location: Display
zero/span, non-interactive, ±15% range;
setpoint 1 and setpoint 2, 0 to 100%
range; top-accessible, multiturn
potentiometers
Alarm Deadbands (Hysteresis): 1% of
FSO, standard
Alarm Outputs: Dual form “C” (SPDT)
relay contacts; individual setpoint 1 and
setpoint 2 settings via top-accessible
multiturn potentiometers;
high/low alarm configuration
standard, others available;
relay contacts rated 1 A/24 Vdc,
0.5 A/115 Vac, non-inductive
$349, shown actual size.
See page G-15 for dimensions.
Alarm Indicators: Bicolor
(red/green) LEDs on
front panel
Test Function: Front-panel TEST
button, when depressed, toggles both
SP1 and SP2 alarm status, independent
of pressure input, to allow testing of
system operation
Alarm Response Time:
100 ms typical
Power: Any AC source of 8 to 24 Vac,
50/60 Hz, or any DC source of
9 to 32 Vdc, 1.0 W maximum;
optional wall-mount power supply
available to operate on 115 Vac
(DPG1000-PS)
Electrical Connection: 0.9 m (3') long,
2-conductor 22 AWG cable for power;
0.9 m (3'), 6-conductor 22 AWG cable
for alarm contacts
DPG1000DAR
DC Powered
with Dual
Alarms and
DPG1000DAR
All Models
$
375
4 to 20 mA Output
SPECIFICATIONS
Accuracy: ±0.25% FSO or better, ±1
least-significant digit (includes linearity,
hysteresis, repeatability)
Controls and Location: Display
zero/span, non-interactive, ±15% range;
setpoint 1 and setpoint 2, 0 to 100%
range; test calibration level, 0 to 100%
range; top-accessible, multiturn
potentiometers analog output
zero/span; internal potentiometers
Alarm Deadbands (Hysteresis):
1% of FSO, standard
Alarm Outputs: Dual form “C” (SPDT)
relay contacts; individual setpoint 1 and
setpoint 2 settings via top-accessible
multiturn potentiometers; high/low alarm
configuration standard; relay contacts
rated 1 A/24 Vdc, 0.5 A/115 Vac,
non-inductive
Alarm Indicators: Bi-color
(red/green) LEDs on front panel
Alarm Response
Time: 100 ms typical
Analog Output:
4 to 20 mA DC;
output drive
(compliance) determined
by power source
Analog Output Response
Time: 50 ms, typical
Test Function:
Front-panel TEST button,
when depressed, toggles
both SP1 and SP2 alarm
status and simultaneously
sets display and analog
output to “calibration” level,
independent of pressure
input, to allow testing
system operation
Power: Any DC source of
9 to 32 Vdc, 1.0 W max
Electrical Connection:
0.9 m (3') long,
4-conductor 22 AWG
shielded cable for power and
retransmitted output; 0.9 m
(3') long, 6-conductor 22 AWG
cable for alarm contacts.
G-17
DPG1000DAR-300G-1N,
$375, shown actual size.
See page G-15 for dimensions.
DIGITAL PRESSURE GAUGES
WITH ALARMS AND ANALOG OUTPUT FUNCTIONS
egard to the analog output
sing the DPG1000ADA and
U
DPG1000DAR Alarm Outputs
Normal (Fail-safe) vs. Reverse
Action—The convention for alarm
action is that with the normal or
fail-safe configuration, the alarm
output relays will be CLOSED (relay
energized) for a clear or non-alarm
condition and OPEN (relay not
energized) for an alarm condition.
This is primarily for users who
require an alarm condition if
the gauge loses power or suffers a
catastrophic failure. In the wiring
diagrams, the normally closed and
normally open designations refer to
standard relay terminology (i.e., the
relay contact status with the relay
coil not energized).
Therefore, with the normal
(fail-safe) configuration in a green
or non-alarm condition, the relay
will be energized so that continuity
can be expected between the
common and normally open leads.
In a red or alarm condition, the relay
will be open (not energized) so
that continuity can be expected
between the common and normally
closed leads.
Contact Rating and Protection
The contacts of the alarm relays
are rated at 1 A/24 Vdc or 0.5 A/
115 Vac. Switching loads greater
than the rating, or switching large
inductive loads, will shorten the
useful life of the contacts. In lowlevel switching or with dry contacts,
the user should consider whether
external contact protection, such
as snubber networks or arc
suppression networks, is required
to protect the contacts.
In addition, no internal fusing is
included in the DPG1000 contact
circuits. The circuit external to the
gauge alarm outputs should be
fused by the user in applications
in which good design dictates
this practice.
Using the DPG1000DAR
Analog Output
The analog output is easy to use
if a few system considerations are
observed. The DPG1000DAR is DC
powered, with the gauge power
supply (–) tied to the 4 to 20 mA (–).
Therefore, the DC supply (–) lead
should be considered common with
r
(–) or ground connection in the
user’s system.
Be sure to observe the output
compliance (voltage drive)
capabilities of the gauge. The
compliance, and therefore the
maximum loop resistance the output
can drive, is a function of the supply
voltage to the gauge. Consult the
manual for maximum loop
resistance vs. supply voltage. Too
large a loop resistance will cause
the gauge output to “limit”
or saturate before reaching its full
20 mA output.
MOST POPULAR
CONFIGURATION
ALARM CONFIGURATIONS
1 HI/LO (standard)
2 HI/HI
3 LO/LO
N Normal acting (standard)
R Reverse acting
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
RANGE (psi) MODEL NO. PRICE COMPATIBLE METERS
AC/DC POWERED/DUAL ALARMS
0 to 15.00 DPG1000ADA-15G-1N $349 N/A
0 to 100.0 DPG1000ADA-100G-1N 349 N/A
0 to 300 DPG1000ADA-300G-1N 349 N/A
0 to 500 DPG1000ADA-500G-1N 349 N/A
0 to 1000 DPG1000ADA-1KG-1N 349 N/A
DC POWERED/DUAL ALARMS/ANALOG OUTPUT
0 to 15.00 DPG1000DAR-15G-1N $375
0 to 100.0 DPG1000DAR-100G-1N 375
0 to 300 DPG1000DAR-300G-1N 375
0 to 500 DPG1000DAR-500G-1N 375
0 to 1000 DPG1000DAR-1KG-1N 375
Comes complete with operator’s manual.
Note: To order another alarm configuration, replace “-1N” with alarm configuration from table above.
Ordering Examples: DPG1000ADA-100G-1N, AC/DC-powered unit with range of
0 to 100.0 psig and standard-acting dual alarms in the HI/LO configuration, $349.
DPG1000DAR-100G-1N, DC-powered unit with range of 0 to 100.0 psig, analog output
and standard-acting dual alarms in the HI/LO configuration, $375.
Units available with 15 and 100 psi absolute pressure range. Change “15G” in model number
to “15A” or “100G” to “100A” and add $20 to price.
ACCESSORY
MODEL NO. PRICE DESCRIPTION
DPG-1000-PS $25
G-18
Wall mount 115 Vac power supply for DPG1000ADA units
DPG1000ADA-300G-1N,
$349, shown smaller than
actual size. See page
G-15 for dimensions.
1
⁄4 NPT Pressure
Snubbers $12.75
PS-4G = Gas
PS-4E = Lt Oil
PS-4D = Dense Lq
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
PRESSURE
GAUGES
G
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