Dwyer SC1290 User Manual

Loop Alarm™

Model SC1290 and SCL1290

INSTALLATION INSTRUCTIONS

LOVE CONTROLS

LOVE

®

December, 2004 Page 1 of 8 949-0530 Rev. 2

a Division of Dwyer Instruments, Incorporated

PO Box 338 Michigan City, IN 46361-0338

[phone] [phone] FAX [phone]

❍

❍

www.love-controls.com

❍

Getting Started

1.) Using a small screwdriver, ball point pen, etc. set the Input Switch
(SW-1) on the side of the unit f or TCB (Thermocouple Break) direction,
the thermocouple type, and the input range to be used.

2.) Set the Output Switch (SW-2) for the output responses required (see
Output Programming on page 4).

3.) Mount unit into panel. (see Mounting on page 5).

4.) Connect unit to input signal, output signal, and power wiring (see Wir­ing on page 5).

5.) Check calibration (See Calibration on page 6).

Operation description is on page 6
Specifications are on page 7.

Copyright © 2004 Love Controls Division, Dwyer Instruments, Inc. All rights reserved.

949-0530 Rev. 2 Page 2 of 8 December, 2004

INPUT PROGRAMMING

Determine the direction of the TCB (Thermocouple Break) and set switch 1
on SW1 to OFF for upscale action or ON for do wnscale action (See Figure 1).

Switches 2 through 5 on SW1 al­low selection for thermocouple type.
Only one of these switches should
be on. Turning on more than one
of these switches may cause the
SC1290 to operate in an unpredict­able manner .

For a type J thermocouple, turn on
switch 2.
For a type K or type T thermo­couple, turn on switch 3.
For a type E thermocouple, turn on
switch 4.
For a type R or type S thermocouple, turn on switch 5.

Use the chart (Figure 2, below) to select the input type and range for your
process. Turn on the appropriate switch(s) (as indicated) on SW1 f or the input
range desired.

Figure 1

Figure 2

December, 2004 Page 3 of 8 949-0530 Rev. 2