TEL: 01-800-099-0420 (In México) | 001-203-359-7577 (Outside México)
 Accessibility  Skip navigation  Site Map  Help  Search field  View shopping cart  View shopping cart  Skip to Navigation
Home >> pH and Conductivity... >> Industrial pH Instru... >> pH Controllers and R... >> DPU91_pH

Multi-Parameter Input Transmitter For pH/ORP

DPU91_pH   
1 year warranty CE
 
Multi-Parameter Input Transmitter For pH/ORP
DPU91_pH:Multi-Parameter Input Transmitter For pH/ORP
Click for larger image.
   
Large Auto-Sensing Backlit Display
“Dial-Style” Digital Bar Graph
Intuitive and “User-Friendly” Interface
Optional Field Upgradable Relays
Warning LED Indicator
Custom 13-Character Label Capabilities
Factory Reset Capability

View related products - Industrial pH Instrumentation and Electrodes

Click to scroll below to order See Specs PDF Manuals Related Items View a printer friendly page

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 (1.38 lb) DPU91-pH/ORP Series
Display Ranges
For flow version visit omega.com/dpu91_flow For conductivity/resistivity version visit omega.com/dpu91_conductivity
pH: 0.00 to 15.00
pH Temperature: -99 to 350°C (-146 to 662°F)
ORP: -1999 to 1999.9 mV
Temperature: -99 to 350°C (-146 to 662°F)
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% noncondensing 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 (DPU91-R optional relay module)
Dry-Contact Relays: 2
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 flow models visit omega.com/ dpu91_flow
Raw Conductivity/Resistivity: Input directly from compatible conductivity/ resistivity electrodes via direct conductivity/resistivity module or via CDTX-2850 For conductivity/resistivity models visit 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 (°77F)
Resolution: 1 µS
Repeatability: ±0.2% of reading


To Order (Specify Model Number)    
expand list What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.
 
Most Popular Models Highlighted!
 Part Number   Availability   Price   Description    Qty.
 Multi-Parameter Display and Transmitter
Click to expand/minimize a list of what others bought with the DPU91  DPU91 In Stock   14,700.00    DC powered field mount multi-parameter display and transmitter (Requires FP90UM mounting kit)  
Click to expand/minimize a list of what others bought with the DPU91P  DPU91P 3 Weeks   14,545.00    DC powered panel mount multi-parameter display and transmitter  
 pH and ORP Electrodes
    ORE-2725 4 Weeks   8,760.00    Flat surface ORP electrode, 10KΩ ID. 3⁄4 NPT  
    ORE-2725-ISO 4 Weeks   8,760.00    Flat surface ORP electrode, 10KΩ ID, ISO 7/1 R3⁄4  
    PHE-2724 In Stock   8,290.00    Flat surface pH electrode, 3K Balco, 3⁄4 NPT thread  
    PHE-2724-ISO    Consult sales   Flat surface pH electrode, ISO 7/1 R3⁄4 NPT  
    PHE-2726 4 Weeks   7,130.00    Bulb style pH electrode, 3K Balco, 3⁄4 NPT thread  
    PHE-2726-ISO    Consult sales   Bulb style pH electrode, 3K Balco, ISO 7/1 R3⁄4  
    PHE-2726-HF    Consult sales   Bulb style, HF resistant pH electrode, 3K Balco, 3⁄4 NPT  
    PHE-2726-HF-ISO    Consult sales   Bulb style, HF resistant pH electrode, 3K Balco, ISO 7/1 R3⁄4  
    PHE-2726-LC    Consult sales   Bulb style, low conductivity pH electrode, 3K Balco, 3⁄4 NPT  
    PHE-2726-LC-ISO    Consult sales   Bulb style, low conductivity pH electrode, 3K Balco, ISO 7/1 R3⁄4  
 Accessories
Click to expand/minimize a list of what others bought with the PHA-10  PHA-10 In Stock   391.00    pH 10 buffer solutions 500 ml (1 pt)  
Click to expand/minimize a list of what others bought with the PHA-10-GAL  PHA-10-GAL In Stock   980.00    pH 10 buffer solutions 4L (1 gal)  
Click to expand/minimize a list of what others bought with the PHA-4  PHA-4 In Stock   391.00    pH 4 buffer solutions 500 ml (1 pt)  
Click to expand/minimize a list of what others bought with the PHA-4-GAL  PHA-4-GAL In Stock   980.00    pH 4 buffer solutions 4L (1 gal)  
Click to expand/minimize a list of what others bought with the PHA-7  PHA-7 In Stock   391.00    pH 7 buffer solutions 500 ml (1 pt)  
Click to expand/minimize a list of what others bought with the PHA-7-GAL  PHA-7-GAL In Stock   980.00    pH 7 buffer solutions 4L (1 gal)  
Click to expand/minimize a list of what others bought with the PHA-DI  PHA-DI In Stock   440.00    De-ionized water 500 ml (1 pt)  
Click to expand/minimize a list of what others bought with the PHA-DI-GAL  PHA-DI-GAL In Stock   1,095.00    De-ionized water 4L (1 gal)  
    PHAB-DI In Stock   995.00    20 single use foil packets of de-ionized water  
Click to expand/minimize a list of what others bought with the PHAB-PH  PHAB-PH In Stock   995.00    5 each single use foil packets of pH-4, pH-7, pH-10 and de-ionized water  
    PHEH-275G In Stock   11,575.00    Submersible sensor electronics, 3⁄4 NPT  
    PHEH-275Y 4 Weeks   11,575.00    In-line sensor electronics, 15 ft cable, 3⁄4 NPT  
    PHEH-275Y-ISO 4 Weeks   11,575.00    In-line sensor electronics, 15 ft cable, ISO 7/1 R3⁄4  
    PHEH-276G    Consult sales   In-line pre-amplifier, 3⁄4 NPT  
    PHEH-276G-ISO    Consult sales   In-line pre-amplifier, ISO 7/1 R3⁄4  
    PHEH-276Y In Stock   6,725.00    Submersible pre-amplifier, 3⁄4 NPT  
    PHEH-276Y-ISO    Consult sales   Submersible pre-amplifier, ISO 7/1 R3⁄4  
    PHE-2700-DLA 4 Weeks   11,730.00    pH/ORP simulator and system tester  
 Mounting and Electrical Options
Click to expand/minimize a list of what others bought with the FP90UM  FP90UM In Stock   1,745.00    Universal mounting bracket for remote mounted display  
    DPU90-R In Stock   3,125.00    Field mount relay module (Panel mount only!)  
    DPU90-COMM 5 Weeks   8,270.00    Field mount communications module (Panel mount only!)  
 Mounting options for use with EasyCal
    PHTX-275Y Consult Sales   12,485.00    Universal mount junction box with EasyCal  
All dollar amounts on this site are shown in US currency.

 Note: Comes complete with operator’s manual.

Electrodes and mounting kits sold separately.



 Related Links - Manual, Related Products
 Product Manual
   Download pH/ORP Electrodes
   Download pH/ORP Preamplifier
   Download Installation Kits and Hardware Accessories
   Download pH/ORP Sensor Electronics
   Download Transmitter
   Download Optional Modules for Batch Controller
 Related Products
FP Series Fittings FP Series Fittings:
Sensor Installation Fittings
PHA-4, PHA-7 and PHA-10 PHA-4, PHA-7 and PHA-10:
Pre-mixed pH Calibration Solutions
DPU91_FLOW DPU91_FLOW:
Multi-Parameter Input Transmitter
DPU91_Conductivity DPU91_Conductivity:
Multi-Parameter Input Transmitter For Conductivity, Resistivity and Salinity
   

   Back to topBack to top




MMV | 6 | 020