The Series SCD-8 Multi-Loop DIN Rail Mount Temperature Controller can be used to control up to 8 independent PID control circuits. The base unit comes standard with 4 thermocouple or 3 RTD input channels. Additional input cards can be purchased if needed, but the additional inputs must be of the same type as the inputs that came with the base unit. If more than 8 loops are required or to mix input types, SCD-2000 slave modules can be added without wiring additional power or communications cables.
Each loop can be programmed either through the standard RS-485 serial communications or an optional plug in LED display module. Each control loop will have two outputs and a single input. The outputs can be configured for dual loop control or for a control loop and an alarm. One of the two outputs for each control loop must be a relay or pulsed voltage output.
| Input | Thermocouple: RTD (depending on model, see Catalog page). |
| Display | Optional, single row 7 segment LED display, 4 bit PV = Red, SV = Green. |
| Supply Voltage | 24 VDC, isolated switching power supply. |
| Power Consumption | 10W + (3W x # of SCD-2000 modules). |
| Operating Temperature | 32 to 122°F (0 to 50°C). |
| Memory Backup | Non-volatile memory. |
| Control Output Ratings | Relay output: SPST 3A @ 250 VAC resistive; Voltage pulse: Output: 24 VDC max, 40 mA; Current output: 4 to 20 mA (resistive load < 500 Ω) (output 1 or 2 only); Linear voltage: 0 to 10 VDC (resistive load > 1000 Ω) (output 1 or 2 only). |
| Communications | RS-485 Modbus® A-5-11/RTU communication protocol. |
| Weight | 10 oz (425 g). |
| Agency Approvals | CE, cUL, UL. |
| Dwyer Series SCD-8 Multi-Loop DIN Rail Mount Temp. Controller - Data sheet 170 KB |
| Dwyer Series SCD-8 Multi-Loop DIN Rail Mount Temp. Controller - Manual 1010.3 KB |
Item
Description
Availability
Price
Power supply, 100 - 240 VAC
Normally ships in 2-3 Weeks
$78.00 CAD
R/C snubber (recommended for inductive loads like a solenoid or contactor)
Normally ships in 3-4 Weeks
$51.00 CAD
Mini-node RS-485 to USB converter
Normally ships in 2-3 Weeks
$209.00 CAD
