SDM-CD16S

Name: SDM-CD16S
Brand: Campbell Scientific
SKU: 18418
Availability: InStock

16-Channel Solid-State DC Controller

SDM-CD16S

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16-Channel Solid-State DC Controller

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Model:: SDM-CD16S
Item Number:: 18418
Warranty:: 1 year

Overview

With an SDM-CD16S, your data logger can control dc devices that have a relatively high-powered load, such as solenoids, solenoid valves, dc motors, stepper motors, lights, horns, heaters, and fans. With a voltage range of up to 48 Vdc and a maximum current output per channel of 2 A, the SDM-CD16S can drive up to 100 W of power on each channel.

Key Advantages

Expands Data Logger Control Capacity
For dc devices with
higher current loads

Technical Description

This relay driver provides 16 dc voltage outputs that can be switched on and off manually or under data logger control. The SDM-CD16S's toggle switch has three positions: MANUAL, OFF, and AUTO.

In the MANUAL position, outputs are controlled by the position of the individual rocker switches.
In the OFF position, all outputs are off.
In the AUTO position, the state of the relays is controlled by the SDM commands from the data logger or by the logic control inputs.

Separate inputs for power-to-outputs (48 Vdc maximum) and power-to-SDM-CD16S logic (7 to 48 Vdc) allow the option of powering the logic from the data logger’s 12 V while switching a higher voltage.

SDM Operation

The SDM-CD16S is a synchronously addressed data logger peripheral. Data logger control ports 1, 2, and 3 are used to address the SDM-CD16S, then clock out the desired state of each of the eight control ports. Up to 15 SDM-CD16S devices may be addressed, making it possible to control a maximum of 256 ports from the first three data logger control ports.

Data Logger Connection

The CABLE5CBL-L is recommended for connecting the module to the data logger. A 1-ft cable length should be sufficient when both data logger and SDM-CD16S are housed within an ENC12/14 enclosure; a 2-ft length may be required if the data logger and SDM-CD16S are housed at opposite ends of an ENC16/18 Enclosure. The cable length should be as short as possible. Typically, the maximum cable length is 20 ft. Contact Campbell Scientific if the length needs to be longer.

Benefits

Allows the data logger to automatically turn devices on or off when a threshold (for example, temperature or water depth) has been reached
Provides a manual override
Includes LEDs for a visual indicator of active outputs
Drives up to 100 W of power on each channel

Specifications

Function: Allows the data logger to control dc devices that have a relatively high-powered load, such as solenoids, solenoid valves, dc motors, stepper motors, lights, horns, heaters, and fans.
Number of Channels: 16
Isolation: Optically isolated between the inputs and outputs
Logic Power Voltage: 7 to 48 Vdc
Logic Current Drain (@ 12 Vdc): 15 mA quiescent
2.5 mA per active LED
(manual or auto)
Toggle Switch: MANUAL, OFF, AUTO
Individual dip switches for manual
Supply Voltage for Output: 48 V max
(dc only)
Operating Voltage: 12 Vdc
Maximum Current: 2 A
(per channel)
10 A fused
(all channels total)
Fuse: 3 AG 10 A
Actuation/Release Times: 8 μs/200 μs
Operating Temperature: -40° to +70°C
Maximum Cable Length: 6 m (20 ft) total to all SDM devices

(Contact Campbell Scientific if longer lengths are necessary.)
Dimensions: 24.1 x 12.7 x 6.4 cm
(9.5 x 5.0 x 2.5 in.)
Weight: 771.1 g
(1.7 lb)

Accessories

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Replacement Parts

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Compatibility

Enclosure Considerations

The SDM-CD16S requires a desiccated, non-condensing environment; a Campbell Scientific enclosure is recommended. Grommets and screws are provided to attach the flanges/bracket to the backplate of our enclosures.

Power Considerations

The SDM-CD16S power requirements may be large compared to most Campbell Scientific products. For most applications, an external power supply is recommended to power the SDM-CD16S.

For some applications, it may be convenient to use the data logger’s sealed-rechargeable battery. If the data logger’s rechargeable batteries are used, the batteries need to be float charged via a wall charger or solar panel. The current available from the wall charger limits the SDM continuous output current. Campbell Scientific does not recommend using the data logger’s alkaline power supply.