Dwyer SCD - Manual

1
5011654201-SCD1
2007-01-12
SCD1000/2000 Temperature Controller
Instruction Sheet
Thank you very much for choosing Love Controls SCD Series Temperature Controller. Please read this
instruction sheet before using your SCD series to ensure proper operation and please keep this instruction sheet
handy for quick reference.
1 PRECAUTIONS
DANGER: ELECTRIC SHOCK!
SCD1000 is an OPEN-TYPE Process Control Equipment and SCD2000 is an OPEN-TYPE Process Control
Accessory. These devices are microprocessor-based temperature regulating controllers which may be
provided with normally closed and/or open contacts. They are intended for installation completely within an
overall panel or process control enclosure and are used in heating or cooling applications. Please Install within
a separate UL Listed enclosure only, keep the enclosure away from airbome dust or high humidity and prevent
electric shock or sudden shock. Also, it is equipped with protective methods such as some special tool or key
to open the enclosure, so as to avoid the hazard to users or any damage to the controller.
1. Prevent dust or metallic debris from falling into the controller that will cause malfunction.
2. Do NOT modify or disassemble the controller.
3. Do NOT connect the controller to “No Used” terminal.
4. Do not install and/or use the controller in places of:
(a) dust or corrosive gases and liquid; (b) high humidity and high radiation; (c) vibration and shock; (d) high
voltage and high frequency.
5. Switch of the power when wiring and changing the input sensor.
6. Make sure to use compensating wires that match the thermocouple types when extending or connecting the
thermocouple wires.
7. Shorten the wire when wiring a platinum resistance thermometer (RTD) to the controller and separate power
cable from load wires to prevent interference and conductive influence.
8. Make sure power cables and signal devices are installed properly before switching on the power; otherwise
serious damage may occur.
9. Do NOT touch the terminals or repair the controller when the power is switched on to prevent electric shock.
10. Wait at least one minute after the power is switched off to allow capacitors to discharge, and DO NOT touch
any internal circuit within this period.
11. Do NOT touch internal terminals no matter power is switched on or off.
12. To ensure temperature accuracy, keep the controller away from the heating source.
2 MODEL NAME EXPLANATION
SCD SCD series Temperature Controller
1 Controller Position
1: first controller
2: controller in parallel
2 Auxiliary Output
Groups
0: standard, 2 groups output, no auxiliary output
1: 1 group auxiliary output. Not available now.
2: 2 groups auxiliary output. Not available now.
3 4 Optional
00: standard
01: CT input. Not available now.
02: Event input. Not available now.
5 Main Output Type
R: Relay output SPST, 250VAC, 3A
V: Voltage Pulse output 12V +10%~ -20%
C: Current output 4 ~ 20mA
L: Linear Voltage output 0 ~ 10V
™ Standard: DC24V input, Relay output for 2 nd group, RS-485 communication.