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Q4C Series 4 Sensor Digital Controllers
Brand: Quatrosense Environmental LtdThe Q4C is a multi-channel controller display and alarm unit that utilizes digital communications to interface with a maximum of four remote digital QEL transmitter/sensors.
Specifications
Input Power
- 24 V ± 4 Vac or DC
Fuse
- F1: 4A slo-blo
- F2: 1A very fast
Enclosure
- NEMA 4X Type General Purpose
Enclosure Material
- ABS plastic
Dimensions
- 7” x 4.7” x 3.5” (180 x 120 x 90 mm)
Temperature
- Industrial -20° C to +50° C (-4° F to +122° F)
Humidity
- Continuous 5 to 95 % RH, non-condensing
- Intermittent 0 to 99 % RH, non-condensing
Input Types
- RS-485 digital port for up to 4 QEL transmitter/sensors.
- RS-232 programming port using RJ-11 connector
Output Ports
- RS-485 to host M-CONTROLLER
- RS-232 programming port using RJ-11 connector
- 4-20 mA signals scalable
LED Status Lights
- TX/RX: Relay 1, Relay 2, Relay 3, Relay 4
Recommended Cable
- Power: Twisted shielded pair
- Communication (RS-485): Belden 9841 or equivalent twisted shielded pair, 120 ohm
Panel Controls
- 4 tactile and audible keypad
Audio Indicator
- 24 Vdc transistor outputs, buzzer, strobe, horn
Relay Outputs
- 4 SPDT rated 10 Amps resistive 250 Vac / 30 Vdc
Relay Assignment
- Independent, individually set to one or all transmitter/sensors
Time Delays
- Individually set, make, break, average, and voting, 0 to 59 minutes
LCD Digital Display
- 2 x 8 back-lit LCD displaying transmitter address, gas type, concentration and alarm status
Display Scroll Rate
- Adjustable 1 - 9 seconds
Power Supply Output
- 24 V supplied externally through controller