 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.
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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
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