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USD$18,515.00
DPU91
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Large Auto-Sensing Backlit Display
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“Dial-Style” Digital Bar Graph
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Intuitive and “User-Friendly” Interface
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Optional Field Upgradable Relays
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Warning LED Indicator
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Custom 13-Character Label Capabilities
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Factory Reset Capability
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View related products - Instrumentation and Accessories
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The DPU91 transmitter provides a
single channel interface for many
different parameters including flow,
pH/ORP, conductivity/resistivity,
salinity and temperature. The
DPU91-BC transmitter has the
added capability of supporting the
batch module for batching control.
The extra-large (3.90 x 3.90")
autosensing backlit display can
be viewed at 4 to 5 times the
distance over traditional transmitters.
The highly illuminated display and
large characters reduce the risk of
misreading or misinterpreting the
displayed values. The display shows
separate lines for units, main and
secondary measurements as well
as a “dial-style” digital bar graph.
The DPU91 is offered in both panel
or field-mount versions. Both
configurations can run on 12 to
32 Vdc power (24 Vdc nominal)and have 4 to 20 mA outputs.
Designed for complete flexibility,
plug-in modules allow the unit to
easily adapt to meet changing
customer needs. Optional modules
include relay, direct conductivity/
resistivity, batch and a PC
communications configuration tool.
The unit can be used with default
values for quick and easy
programming or can be customized
with labeling, adjustable minimum
and maximum dial settings, and unit
and decimal measurement choices.
Specifications
General
Input Channels: 1
Input Types: Digital serial ASCII, TTL level, 9600 bps
Frequency Range: 0.5 to 1500 Hz
Accuracy: 0.5% of reading (display)
Measurement Types: Flow, pH/ORP, conductivity/resistivity, salinity, pressure, temperature or batch
Enclosure and Display
Case Material: PBT
Window: Shatter-resistant glass
Keypad: 4 buttons, injection-molded silicone rubber seal
Display: Backlit, 7 and 14-segment
Update Rate: 1 second
LCD Contrast: 5 settings
Indicators: “Dial-style” digital bar graph, LEDs for open collector, relays and warning indicator
Enclosure: ¼ DIN, NEMA 4X/IP65
Mounting Panel: ¼ DIN, ribbed on four sides for panel mounting clip inside panel, silicon gasket (included)
Field Mounts: Specified to OMEGA™ field mount junction boxes
Weight: 0.63 kg (1.63 lb) DPU91-FLOW Series
Display Ranges For conductivity/resistivity version visit omega.com/dpu91_conductivity For pH/ORP version visit omega.com/ dpu91_ph
Flow Rate: -9999 to 99999 units per second, minute, hour or day
Totalizer: 0.00 to 99999999 units (program lockout or resettable)
Temperature: -99 to 350°C (-146 to 662°F)
Volume: 0 to 99999 cm³, m³, in³, ft³, gal, L, lb, kg, %
Environmental
Ambient Operating Temperature:
Backlit LCD: -10 to 70°C (14 to 158°F)
Storage Temperature: -15 to 70°C (5 to 158°F)
Relative Humidity: 0 to 100% condensing for field mount; 0 to 95% non-condensing for panel mount
Maximum Altitude: 4000 m (13,123')
Electrical Requirements
Power to Sensors:
Voltage: 4.9 to 5.5 Vdc @ 25°C, regulated short circuit protected
Terminal Blocks: Pluggable screw type 14 AWG maximum wire gauge
Input Power
DC: 10.8 to 35.2 Vdc, regulated
Current Output:
4 to 20 mA (10.8 to 35.2 VDC, 30 mA max)
DPU91 without Relay Module: 200 mA @ 10.8 to 35.2 Vdc
DPU91 with Relay Module: 300 mA @ 10.8 to 35.2 Vdc
Open Collector: 1
Overvoltage Protection: 48 V transient protection device current limiting for circuit protection and reverse-voltage protection
Relay Specifications (DPU90-R optional)
Type: SPDT, Form C
Maximum Current Rating: 5 A resistive 50 mA DC
Maximum Voltage Rating: 30 Vdc or 250 Vac
Hysteresis Adjustable: Absolute in engineering units (EUs)
Latch Reset: In test screen only
Delay: 9999.9 seconds (maximum)
Test Mode: Set on/off
Cycle Time: 99999 seconds (maximum)
Maximum Pulse Rate: 400 pulses/minute
Proportional Pulse: 400 pulses/minute
Volumetric Pulse Width: 0.1 to 3200 s
Pulse Width Modulation: 0.1 to 320 s
Input Types
Digital or AC Frequency: pH/ORP input via the digital output from the PHTX-2750 pH/ORP sensor electronics (For pH models see omega.com/ dpu91_ph)
Conductivity/Resistivity: Input directly from OMEGA conductivity/ resistivity electrodes via direct conductivity/resistivity module or via CDTX-2850 (For conductivity/resistivity models see omega.com/ dpu91_conductivity)
Input Specifications
Digital Serial: ACSII, TTL level, 9600 bps
Frequency Input:
Sensitivity: 80 mV @ 5 Hz, gradually increasing with frequency
Span: 0.5 Hz to 1500 Hz @ TTL level input
Accuracy: ± 0.5% or reading maximum error @ 25°C (77°F)
Repeatability: ±0.2% of reading
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† All dollar amounts on this site are shown in US currency.
Note: DPU91 and DPU91P come complete with operator’s manual.
Sensors, Modules, and Mounting Kits sold separately.
DPU91-BC comes complete with DPU91P transmitter, DPU90-R relay module, DPU90-BCM batch controller module, and operator's manual.
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Related Links -
Manual, Related Products
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Product Manual |
Download Transmitter |
Download Batch Controller System |
Download Optional Modules for Batch Controller |
Download Installation Kits and Hardware Accessories |
Related Products |
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FP-5100: |
Pure PVDF or Polypro
Flow Monitoring Systems |
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DPU91_Conductivity: |
Multi-Parameter Input Transmitter For Conductivity, Resistivity and Salinity |
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DPU91_pH: |
Multi-Parameter Input Transmitter For pH/ORP |
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