page 3 of 9 008TA14 BU-094-A Revision : 7 Page 3 / 9
Operational Description
The controller (via relay K1) will automatically switch the heating circuit ON when the actual temperature (
P01
)
falls below the control temperature setpoint (
P10
minus hysteresis
P11
).
In the event of an error condition, the integrated alarm relay
(K2)
switches (via the SPDT contact, configurable
as either NC or NO) to indicate one or all of the following error conditions:
- over / under temperature
- sensor-interrupt
- short circuit.
During sensor malfunction, relay K1 switches/cycles continuously on or off, depending on configuration.
Changing Parameters
To access and view the controller parameter list, press and hold the „P“ button for 3 seconds until „P10“
appears on the display
.
The following key strokes may be entered for viewing and adjusting* parameter
values. Refer to Page 5 of this manual for a complete list of controller parameters.
Parameter Protection
The temperature control set point (high/low set points, or P13 and P14 respectively) may be changed without
passcode protection, and set points may be changed using the procedure described above.. All other
parameters are passcode protected. The display will prompt when a passcode is required (display will indicate
„C00“).
To enter the passcode, use the arrow keys to enter the passcode number (C42). Confirm by pressing the “P”
button.
If no key is entered, the access code request is automatically cancelled after approx. 1 minute and the display
returns to the normal view.
• Press and hold „P“ for 3 sec.
- Parameter No. appears (P10)
• „▲ / ▼ “
- Pushing the ‘up’ or ‘down’ arrows allow for scrolling through the parameter list (P1 – P34)
• Press „P“ again
- Displays the programmed/set parameter value
• „▲ / ▼ “
- Pushing the ‘up’ or ‘down’ arrows will ‘increase’ or ‘decrease’ the parameter values accordingly
• Press „P“ again
- Saves the new value/set point, the display reverts back to the adjusted parameter No.
• Press „▲ / ▼“ until „P1“ appears, then press “P” (or wait for less than 1 Min.)
-
Exits the settings menu
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