Huber Pilot ONE Unistat T300 Series, Operation Manual

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Setup mode
OPERATION MANUAL Chapter 4
Unistat® T300 Series
Liability for errors and misprints excluded. V1.2.0en/12.05.15//14.06
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Usage of un-filtered river or sea water as cooling water
DAMAGE TO THE TEMPERATURE CONTROL UNIT

Un-filtered river or sea water is not suitable for use as cooling water due to the contaminants.
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Use drinking water of filtered river or sea water for cooling.
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For information about water quality, see www.huber-online.com.
The relatively hi gh water temperatures (> 60 °C) may cause, depending on water quality, calcific a-
tion of the hoses / pipes (also internally). Take appropriate measures (e.g. regular descaling) to
prevent restrictions. Please read page 78, section »Function check and visual inspection« .
4.3.1 Cooling water connection I
Valid for Unistat T305
The T300 series has a cooling water connection, which enables to compensate self-heating (heat
input from the pump motor) and to lower the temperature. It is recommended to compensate self-
heating if you want to achieve flow temperatures in the range just above the cooling water inlet
temperature. A temperature reduction is useful if your reactions take place at relatively high tem-
peratures and cooling to lower temperatures was previously effected only by radiation of heat.
4.3.1.1 Activating the cooling water release
The cooling water is released via an internal solenoid valve. Additional cooling with cooling water
can be used up to a flow temperature of 95 °C. The cooling water outlet temperature is then < 60 °C.
The standard operating temperature is preset to 95 °C and is reset to 95 °C at every reboot .
PROCEDURE
Example 1:
Compensation of self-heating to work at a flow temperature of 40 °C.
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Go to the “Categories Menu”.
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Tap the required category.
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Tap the required sub-category.
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Tap the required menu item.
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Enter the new value for the cooling water release, using the numeric keypad that appears.
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Confirm your entry by tapping on “OK”.
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Go to the “Home” screen.
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Tap on the “Start” touchbutton.

Confirm the start of temperature control by tapping on “OK”.
The correct selection will be displayed graphically and temperature control will start immediate-
ly. If tapping on “OK” is not correct, it will be displayed graphically for 2 seconds. Then the dis-
play will return to the “Home” screen again. Try starting the thermoregulation again.

Tap on the keypad symbol next to “T
Setpoint
”.

Enter the new setpoint of 40 °C, using the number keypad that appears.
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Confirm your choice by tapping on “OK”.

Open the upstream cooling water hand valve far enough to reach a satisfactory result for the
thermoregulation.
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Turn off the temperature control after completion of the temperature control task and close the
upstream cooling water hand valve.
PROCEDURE
Example 2:
Temperature reduction from 95 °C to 40 °C in order to extract samples requiring thermoregulation
from the process.

Go to the “Categories Menu”.

Tap the required category.

Tap the required sub-category.

Tap the required menu item.

Enter the new value for the cooling water release, using the numeric keypad that appears.

Confirm your entry by tapping on “OK”.

Go to the “Home” screen.