You can control up to 12 external ac or dc devices using the six internal relays of the A6REL-12. Each relay set can be controlled manually or by a data logger.
Read MoreThe A6REL-12's internal relays are dual single-pole double-throw. Each of the six relays has a three position toggle switch; "on" and "off" for manual override, and "auto" for data logger control. In the on position, the common and normally open contacts are shorted. In the auto position, the state of a relay is controlled by a data logger control port.
A6REL-12's with serial numbers 1445 and higher are UL-approved.
Function | Controls up to 12 external ac or dc devices. |
Number of Channels | 6 |
Operating Voltage | 12 Vdc nominal (8.4 to 24 Vdc) |
Current Drain at 12 Vdc |
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Toggle Switch | ON/OFF manual override; AUTO for data logger control |
Relays | dual single pole double throw, break before make |
Contact Material | Gold-clad silver |
Coil Resistance | 720 Ω ±10% |
Contact Ratings |
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Release/Actuation Time | ~3 ms |
Operating Temperature | -40° to +70°C |
Standards |
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Dimensions | 22.4 x 13.9 x 4.1 cm (8.8 x 5.5 x 1.6 in.) including switches and mounts |
Weight | 635g (1.4 lb) |
Expected Life (contact closures) |
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Mechanical | 108 |
Electrical |
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Note:The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Product | Compatible | Note |
---|---|---|
21X(retired) | ||
CR10(retired) | ||
CR1000(retired) | ||
CR10X(retired) | ||
CR200X(retired) | ||
CR206X(retired) | ||
CR211X(retired) | ||
CR216X(retired) | ||
CR23X(retired) | ||
CR295X(retired) | ||
CR3000(retired) | ||
CR500(retired) | The CR500 has only one control port capable of providing a control signal. | |
CR5000(retired) | ||
CR510(retired) | The CR510 has only one control port capable of providing a control signal. | |
CR800 | The CR800 has only four control ports capable of providing a control signal. | |
CR850 | The CR850 has only four control ports capable of providing a control signal. | |
CR9000(retired) | ||
CR9000X(retired) |
Product | Compatible | Note |
---|---|---|
ENC10/12 | ||
ENC10/12R | ||
ENC12/14 | ||
ENC14/16 | ||
ENC16/18 | ||
ENC24/30 | ||
ENC24/30S |
Each of the six relays is controlled by a data logger control port.
Cable(s) Used | Number of Relays Controlled |
One CABLE3CBL-L | 1 |
One CABLE4CBL-L | 2 |
One CABLE5CBL-L | 3 |
Two CABLE3CBL-L | 4 |
One CABLE3CBL-L and one CABLE4CBL-L |
5 |
Two CABLE4CBL-L | 6 |
The A6REL-12 consumes 30 mA per active LED. The A6REL-12 may be powered by the data logger power supply (see manual for considerations with 21X) or a separate 8.4 to 24 Vdc battery. The A6REL-12 must be powered by a Class 2 device (Campbell Scientific power supplies conform to this requirement).
The A6REL-12 requires a non-condensing environment; a Campbell Scientific enclosure is recommended. A6REL-12's with serial numbers 1445 and higher include mounting flanges with keyhole slots that attach to the backplate of an enclosure. Grommets and screws are provided.
A6REL-12s requi与序列号1444和低re the 6281 bracket kit for attachment to the backplate of Campbell enclosures.
Number of FAQs related toA6REL-12:1
The following relay devices can be used with the CR800 and the CR850:
The CR800 and the CR850 can also be used with a wide variety of third-party relay devices.
*Because the CR800 and the CR850 only have four digital ports, they do not have the ability to switch all six of the relays on the A6REL-12.
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