The Macurco RD-12 is a low voltage, dual relay Refrigerant (REF) detector, controller and transducer. The RD-12 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of refrigerant gas and provide feedback and automatic exhaust fan control to help reduce refrigerant gas concentrations in industrial refrigeration, cold storage or other commercial applications.
The RD-6 is a low level meter capable of detecting several refrigerants including R-22, R-134A, R-404A, R-407C and R-410A.
| Power | 100-240VAC (50 to 60Hz) |
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| Connections | Plugs/Terminals |
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| Current | 1.0A Max |
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| Fan Relay | 5A, 240VAC, pilot duty, SPDT, latching or non-latching |
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| Fan Relay Actuation | Selectable at "dIS" (disabled), 100 (default), 150, 200, 250, 300 and 350ppm |
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| Fan Delay Settings | 0, 1, 3 (default), 5 and 10 minutes |
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| Fan Minimum Runtime Settings | 0 (default), 3, 5, 10 or 15 minutes |
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| Alarm Relay | 0.5A@120V, 60VA |
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| Alarm Relay Actuation | Selectable N.O. (default) or N.C. |
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| Alarm Relay Settings | "dIS", 100, 125, 150, 200, 300 (default), 400, 500 or 600ppm |
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| Current Loop | 4-20 mA for 0-1000ppm |
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| Operating Environment | 0°F to 125°F (-18°C to 52°C). 10 to 90% RH |
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| Mounting Box | 4" x 4" electrical box (not included) |
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| Size | 4½" x 4" x 2⅛" (11.4 x 10.2 x 5.4 cm) |
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| Shipping Weight | 1 pound (0.45 kg) |
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| Color | Dark Gray |
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