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Scott Safety 7400 Quadscan II Four Channel Controller



  Accepts input from any 4-20mA transmitter
  Individual or simultaneous display of each channel’s output
  Individual Inhibit/Fail, Warn, and Alarm LEDs
  Common 5A SPDT relays for Fail, Warn, Alarm, and Horn
  Programmable time delay, failsafe/non-failsafe, and manual/automatic reset
  Optional relay module for up to 8 relays
  Programmable and assignable to provide: relay activation for each channel / voting logic / zoning logic
  0/4-20mA output for each channel
  Remote relay reset
  Programmable “Lock-Out” mode
  Built-in horn
  Optional 24VDC battery back-up

Centralizes Monitoring and Alarming for Gas Transmitters and Flame Detectors

The QuadScan II receiver offers an abundance of built-in, flexible features that make it the ideal receiver to economically centralize display and alarming for up to four gas transmitters, fire detectors, or other 4-20mA instruments. QuadScan II’s in-the-field “Channel Expansion” feature allows users to initially purchase only the channels they need. Unused channels can then be easily activated with the purchase of a passcode.

Housed in a NEMA-4X wallmount enclosure, the QuadScan II receiver provides power to 2-, 3-, or 4-wire transmitters and is available with an uninterruptible, battery-backed power supply to ensure constant operation during power outages. The highly visible interface includes a backlit LCD and bright LEDs that display each channel’s concentration and alarm status while the built-in, 85 decibel horn provides audible notification to personnel of alarm conditions.

The LCD’s six alphanumeric characters can be programmed to identify each input. Standard concentration units such as PPM, PPB, or % are selectable. The QuadScan II receiver provides 4-20mA outputs for retransmission to other system controllers such as a DCS or PLC. Outputs are easily field calibrated to overcome line loss.

7400 Quadscan II Four Channel Controller

Powerful Alarm and Relay Features

The QuadScan II receiver provides common low alarm, high alarm, fail, and horn relay outputs. The alarm relays can be programmed to operate as latching or non-latching. A front panel “horn silence” button silences the onboard buzzer and deactivates the horn relay during alarm conditions, while the “reset” button deactivates latching alarms when alarm conditions have ended. For additional relay options, the QuadScan II receiver offers powerful relay programming features through an separate optional external relay module with a built-in power supply that provides eight individual 5 amp relays.

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Datasheet

Ordering Information


Batteries, Backups, Chargers, & Power Supplies

096-0719 Backup Power Supply, 24V 2.5Ah, complete w/rechargeable batteries & 120VAC charger

Installation Accessories

099-0008-4 Software Code to Activate Channel 4
099-0008-3 Software Code to Activate Channel 3
099-0008-2 Software Code to Activate Channel 2

Misc Accessories

096-2691 Relay Assembly (Relays complete with enclosure) Includes 10 ft of cable (#096-0065)
096-2688 Relay Board
096-2384 Series 7400 Display Board
096-2383 Series 7400 Power Supply Board



Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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