Single Ramp And Dwell; Functions; Program Overview - Barnstead 30400 Operation Manual

Single Ramp & Dwell
Note
These instructions are used with the Single Setpoint models with OTP only
(See models listed on front page).
Mode 1 (Opt. 1)
Mode 2 (Opt. 2)
Mode 3 (Opt. 3)
Mode 4 (Opt. 4)
Mode 5 (Opt. 5)
18

Functions

This type of controller has single ramp and dwell program-
ming capabilities. The Ramp and Dwell can be configured
to five different modes.
1. Mode 1 (Opt. 1) is a Ramp (if needed) to the
Setpoint temperature, a Dwell, and then a cool
down.
2. Mode 2 (Opt. 2) is the same as mode 1, except
the controller continues to heat at the Setpoint
after the Dwell has completed. (This mode does
not cool down.)
3. Mode 3 (Opt. 3) is the same as mode 1, except
the Dwell time includes the Ramp (if needed).
4. Mode 4 (Opt. 4) is the same as mode 2, except
the Dwell time includes the Ramp (if needed).
5. Mode 5 (Opt. 5) is a Dwell (delay time) before the
controller Ramps (if needed) to the Setpoint tem-
perature.

Program Overview

• A program mode can be set by changing the
"tm.OP" variable to "Opt. 1, Opt. 2, Opt. 3, Opt. 4,
or Opt. 5.
• A Ramp rate may be set by changing the "SPrr"
variable to a value. The Ramp rate units are in
degrees per minute.
• The Dwell time can be set by changing the
"dwEll" variable to the desired value. Dwell time
units are in minutes.
• The program Status can be set by changing the
"StAt" variable to "run" or "oFF." This variable will
start or stop the program.