8870N Overfill Prevention & Ground Verification MonitorDepot Control

Product Datasheet

Technical specifications, dimensions, and installation notes for the OPW Engineered Systems 8800 Series.

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OPW Engineered Systems 8800 Series

8870N Overfill Prevention & Ground Verification Monitor

The 8870N rack monitor uses symbols and pictograms for a more intuitive and simpler to understand loading process — usable anywhere in the world, in any language.

The 8870N Series Overfill Prevention & Ground Verification Monitor from OPW Engineered Systems helps make miscommunication at the loading rack a thing of the past. Rather than relying on written directions or blinking lights to indicate a permissive or non-permissive status for API bottom loading of multi-compartment tank trucks, the 8870N rack monitor uses symbols and pictograms for a more intuitive and simpler to understand loading process. This gives the driver added peace of mind that the loading operation is being performed properly and safely. This also allows the 8870N rack monitor to be used anywhere in the world, no matter the native language of the driver, region or country.

Technical Specifications

Input Power Supply85–264 Vac 50/60Hz Auto-Switching
Nominal Power Consumption4VA
Output Relays240V ac/dc 2AT
CommunicationOptional RS485/422 datacomms port; MODBUS available
Operating Temperature-45°C to +70°C
Response Time< 400ms
ApprovalsATEX / IECEx / QPS for NA and CAN
EnclosureIP65 according to IEC 60529
Weight7.3 kg
Dimensions270 × 230 × 60 mm
StandardsNEN EN13922, API RP1004, VOC directive 94/63/EC
Safety Integrity LevelSIL 1 standard, SIL 2 optional

Typical Applications

  • API bottom loading of multi-compartment petroleum tank trucks at loading depots
  • Combined overfill prevention and ground verification at loading racks
  • Multi-language depot environments — pictogram display usable in any country
  • Top-loading applications on tank trucks or railcars (with OPW-Civacon 5-Wire Cane Probe)
  • Compliance with NEN EN13922, API RP1004, and VOC directive 94/63/EC

Features & Benefits

  • 2-Wire or 5-Wire Optic automatic sensor recognition technology
  • Combined overfill protection and ground verification
  • 120-/240-volt auto-switching input power
  • Supports up to 12 5-wire or 8 2-wire optic sensors
  • Self-checking at start-up; continuous self-monitoring
  • Three relays including one separate user-definable output relay: Overfill & Ground, Overfill, Ground, Smart Storage Hanger
  • Fail-safe redundant permissive output relays
  • Intuitive OLED graphic display with LED individual status-indicator lights
  • Real-time clock with event logging time stamped
  • Vehicle data communication prepared
  • Sophisticated wireless multiple-function and bypass key
  • Dead-man switch connection available
  • Low-temperature operational in extreme conditions as low as -45°C
  • MODBUS communication available
  • Compatible with OPW-Civacon 5-Wire Cane Probe for top-loading applications on tank trucks or railcars

Part Numbers

8870NOverfill and Ground Verification Rack Monitor with OLED Display — 2-Wire & 5-Wire Optic
8851NOverfill and Ground Verification Rack Monitor
8811NGround Verification Rack Monitor
8870N-PACK1-B0Contractor Pack — 8870N, 7500-7500 Std Junction Box, 7100-7100 Blue Optic Cord, No Breakaway
8870N-PACK2-B1Contractor Pack — 8870N, 7540-7540 Breakaway Junction Box, 7120-7120 Blue Optic Breakaway Cord
8870N-PACK1-G0Contractor Pack — 8870N, 7500-7500 Std Junction Box, 7300-7300 Green Cord, No Breakaway
8870N-PACK2-G1Contractor Pack — 8870N, 7510T-7510 Breakaway Junction Box, 7320-7320 Green Breakaway Cord

Repair Parts

H71197Main Seal
H71307Corrosion Protector VCI-101/ACF-50
EL04208Mains Power Input Fuse (TR5 1A Slow Blow 250V), Qty. 2 Per Unit
EL04141Relay Contact Output Fuse (TR5 2A Slow Blow 250V), Qty. 3 Per Unit
EL00203-CRKInternally Used Connector Kit
BCU-RE-001Red Function Key (High Level)
EL06802SD-Ram Card
8800-BRK-14Fastener Kit — 14x Door Bolts
H71342Installation Manual

Authorized Distributor

Voltika is the authorized distributor of OPW-Dover India Private Limited. All products are genuine OPW-Dover, supplied with full manufacturer warranty and after-sales support.

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