Description
Manufacturer: OMNI Flow Computers Inc. (Sugar Land, Texas, USA)The OMNI 6000-1D-1S-1SE-3A-1B-2E is a modular multi-variable liquid/gas flow calculation computer for custody transfer, pipeline, refinery, and petrochemical process metering. It performs full AGA3/AGA7/AGA8, API, and ISO standard flow computations from raw meter, temperature, pressure, and pulse sensor inputs.
Full Order Code Decode (6000-1D-1S-1SE-3A-1B-2E)
- 6000: Core platform = OMNI 6000 Series rack-mount flow computer
- 1D: Input Slot 1 – Differential pressure (DP) analog input for orifice, turbine, Coriolis, venturi meters
- 1S: Input Slot 2 – Static pressure analog input (0–5 V / 4–20 mA pressure transducers)
- 1SE: Input Slot 3 – RTD temperature input (PT100 for process fluid temperature correction)
- 3A: Analog output configuration – 3 isolated 4–20 mA retransmission outputs for DCS/PLC trending
- 1B: Binary input configuration – 1 digital discrete input for external batch reset, flow inhibit, or valve status feedback
- 2E: Relay alarm output configuration – 2 independent SPDT relay contact sets (Process Warning + Custody Transfer Trip)
Core Technical Specifications
| Parameter | OEM Rated Value |
|---|---|
| Full Model Order Code | OMNI 6000-1D-1S-1SE-3A-1B-2E |
| Form Factor | 19” rack-mount 6U industrial chassis |
| Primary Power Input | 100–250 V AC 50/60 Hz; optional 24 V DC dual redundant power |
| Measurement Inputs | 1×DP Analog, 1×Static Pressure Analog, 1×PT100 RTD Temp |
| Analog Input Range | 4–20 mA, 0–5 V DC, galvanically isolated per channel |
| Analog Outputs (3A) | 3×isolated 4–20 mA; max loop load 650 Ω; 0.08% full scale accuracy |
| Binary Input (1B) | 24 V DC active-high opto-isolated discrete input |
| Alarm Relays (2E) | 2×SPDT hermetic relays; 5 A @ 250 V AC / 5 A @ 30 V DC; latching fault logic |
| Supported Calculation Standards | AGA3, AGA7, AGA8 Gross/Net, API MPMS, ISO 5167, NX19 compressibility |
| Batch & Custody Functions | Gross/Net mass/volume flow, density correction, energy calculation, totalizer rollover, audit trail logging |
| Local HMI | Front-panel LCD display + membrane keypad for onsite configuration, live flow readouts, alarm acknowledgement |
| Onboard Diagnostics | Sensor open/short detection, power supply health, internal watchdog, meter pulse fault detection, audit event logging |
| Operating Ambient Temp | 0 °C to 55 °C control room temperature |
| Storage Temperature | −40 °C to +70 °C |
| Relative Humidity | 5–90% non-condensing |
| Physical Dimensions | 265 mm (H) × 483 mm (W) × 305 mm (D) |
| Net Unit Weight | 9.1 kg |
| Firmware Compatibility | OMNI Firmware v22.74, v26.74; compatible with OmniView PC configuration software |
| Certifications | CE, NTEP custody transfer approval, FM non-hazardous listing; verify OEM datasheet for SIL ratings |
| Lifecycle Status | Active OEM production; standard custody transfer spare part for pipeline operators |
Functional Description
This pre-configured OMNI 6000 unit integrates three critical flow correction inputs (DP flow, static pressure, fluid temperature) into a single custody transfer certified computing platform. Each analog input channel operates with full galvanic isolation; wiring faults on one measurement loop do not disrupt total flow calculation for fiscal metering.
It continuously compensates measured flow values for fluid compressibility, density, and thermal expansion per industry regulatory standards. Three isolated 4–20 mA analog outputs transmit scaled mass, volume, and energy flow rates to plant DCS or historian systems for real-time trending and fiscal record storage.
One binary discrete input accepts external site signals to reset batch totalizers or temporarily lock flow calculation during pipeline maintenance sequences. Two tiered latching alarm relays separate minor process deviation warnings from critical custody transfer trip conditions that stop fiscal accumulation. All alarm states, meter events, and configuration changes are stored in non-volatile audit trail memory for regulatory compliance audits.
All calculation parameters, meter K-factors, and alarm thresholds are configurable either via front-panel keypad or OmniView Windows PC software over serial RS232/RS485 Modbus RTU communication ports.
Compatibility Matrix
- Supported Meters & Sensors: Orifice plates, turbine meters, Coriolis mass flowmeters, differential pressure transmitters, absolute/gauge pressure transducers, PT100 3-wire RTD temperature probes
- Control System Integration: Modbus RTU slave communication for PLC/DCS; 4–20 mA analog retransmission for legacy distributed control systems
- Software Compatibility: OmniView Configuration Software v4.10 and newer firmware revisions
- I/O Expansion Limit: Order code defines fixed input/output card set; no field upgrade to add extra DP/temp/pressure channels post-factory delivery
- Hazardous Area Restriction: Base unit rated for general-purpose electrical rooms; Class I Div 1/2 installations require external intrinsic safety barriers on all field sensor wiring
- Redundant Power Option: Separate dual 24 V DC power supply module available for critical fiscal metering stations
Condition, Stock & Lead Time
- Available Unit Conditions: New Original Factory Sealed, New Surplus Unsealed, Certified Refurbished (full calibration & audit trail testing)
- Typical Global In-Stock Volume: 6–22 new original units via authorized OMNI distributors
- Refurbished Bench Test Scope: Full 4–20 mA analog input/output span calibration, RTD temperature linearity sweep, relay alarm trip simulation, Modbus communication handshake validation, audit trail write/read cycling, thermal soak testing
- North American Domestic Lead Time: 2–4 business days ground shipping; same-day expedited air freight for stocked inventory
- International Lead Time: 7–13 business days via DHL/FedEx express
- Standard Warranty Terms: 24-month factory warranty for new original sealed units; 12-month replacement warranty for surplus/refurbished stock
Pricing Guidance
Global authorized distributor indicative pricing ranges 4,100–5,850 USD per unit, with tiered volume discounts for orders of 3+ flow computers.Price subject to regional custody transfer certification surcharges, import duties, and OmniView software licensing fees; contact supplier for a firm quote including full OEM calibration test documentation.
Industrial Application Notes
- All field sensor cabling must use shielded twisted-pair wiring; unshielded cables introduce DP signal noise that creates fiscal flow calculation drift up to ±0.3% full scale.
- The unit does not support hot-swapping of internal I/O modules; full AC/DC power shutdown is mandatory before removing or installing input/output daughtercards.
- Latching alarm relays require manual acknowledgement via front-panel keypad or Modbus remote command to clear fault status after process deviation correction.
- Sustained rack ambient temperatures above 50 °C reduce long-term analog measurement accuracy; install cabinet forced-air cooling for continuous high-heat control room environments.
- For official fiscal custody transfer applications, retain OEM calibration certificates and perform annual bench recalibration to maintain NTEP regulatory compliance.
Frequently Asked Questions
Q: Can additional DP, pressure, or temperature input channels be retrofitted to this OMNI 6000 variant?A: No. The I/O card layout is factory-locked per the order code 6000-1D-1S-1SE-3A-1B-2E; adding measurement channels requires purchasing a different OMNI 6000 configuration model.
Q: Does this flow computer support native Modbus TCP Ethernet communication?A: Standard configuration includes only RS485 Modbus RTU. Ethernet TCP/IP communication requires a separate external serial-to-Ethernet gateway accessory.
Q: Can the binary input be used for pulse meter totalizer reset signals?A: Yes; the 1B discrete input is fully configurable to trigger batch totalizer reset, flow calculation hold, or alarm inhibit functions in site setup parameters.
Q: What regulatory audit data is stored onboard the unit?A: Non-volatile memory retains 10,000+ audit events including configuration edits, alarm activations, power cycles, and meter fault triggers, meeting API and NTEP fiscal record retention requirements.
