Tool-Temp TT-390 - Setting of the Temperature - Heating; Cooling; Adjustment of Electronic Flow Control; Temperature Measurement INTERNAL (IN) - EXTERNAL (OUT)

Manual of instructions TT-390 23/35
6.3. Setting of the temperature – Heating / Cooling
The required temperature on the temperature controller can be adjusted with the arrow buttons.
The heating mode is indicated by the red diode on the temperature controller. The unit can only heat
when the 0-1 switch (heating) is active.
The cooling mode is indicated by the green diode on the temperature controller.
6.4. Adjustment of electronic flow control
The electronic flow control measures the actual flow in the medium circuit and displays this value
digitally on the controller.
Following unit of flow can be selected: litres per minute, English (imperial) gallons or American (US)
gallons. When putting the temperature control unit into service the controller shows the unit of flow on
the display for a short moment.
For controlling the minimal flow you can choose between automatic and manual mode. Standard
programmed is automatic mode.
Automatic mode:
In this mode the alarm value of the flow will be determined as follows:
• 20 seconds after having put the unit into operation (and starting the controller) the actual flow will
be measured and stored. Based on this data the alarm value for the minimal flow will be calculated.
E.g. at 10 l/min the alarm value is at approx. 30% (7 litres) – at 40 l/min at approx. 20 % (32 litres).
• The control of the flow is now active and is visualized after a few seconds by the green LED in the
flow control button.
• As soon as the flow has fallen under the alarm value, the alarm is indicated by the red LED in the
flow control button. The alarm will be reset by pressing the flow control button.
• The actual flow will be measured and stored. Based on this new data the alarm value will be
calculated.
Manual mode:
Using this modus the alarm value of the flow can be adjusted manually.
• On the controller the program step 3 (MP-888) the value must be changed to “0”, respectively
program step 400 (MP-988) the value must be changed to “2” (manual).
• In the program step 4 (MP-888) respectively the program step 410 (MP-988) the required value for
the alarm value of the minimum flow can be adjusted (factory side 8 l/min).
• The control of the flow only starts, when the flow control button has been pressed and the green
LED is lit.
• As soon as the flow has fallen under the alarm value, the alarm is indicated by the red LED.
Press the flow control button to activate the monitoring. If the cause of the lower deviation is not
followed up, follows the alarm again. Minimum flow is defined in program step 4 (MP-888).
6.5. Temperature measurement INTERNAL (IN) – EXTERNAL (OUT)
The set temperature can be regulated with the temperature probe in the Temperature control unit or
with the Change-over switch and the temperature probe on a consumer.
NOTE
The type of sensor must be compatible with the built-in sensor in the
temperature control unit.
The built-in sensor in the unit is noted on the label of the temperature
controller.