Environmental Conditions; Temperature Accuracy; First Steps; Setup - HLC l MHR 11 – TH 21 Bedienungsanleitung

The ventilation slots of the device must not be blocked, because the proper
ventilation of the device must be assured at all times.

Environmental conditions

The ideal area of operation of the devices is achieved at 80% relative air
humidity at most and lays between +3°C - +50°C ambient air temperature.
This range should not be underrun or exceeded.

Temperature Accuracy

Every HLC by DITABIS system is calibrated with a gauged high-precision tem-
perature measuring device to temperature accuracy and reproducibility. This
process is performed at a room temperature of +20°C and a block tempera-
ture of +37°C. The absolute calibration of the heating unit can also be per-
formed for a certain temperature range if the customer desires. HLC by DITA-
BIS reaches a very high accuracy by measuring the block temperature directly
inside the block. It can, however, not be avoided that the cold room tempera-
ture affects the sample temperature in case of high temperature difference
between room and block temperature. The anti-condensation plate reduces
this effect. We recommend using the anti-condensate plate BA 24 / BA 96 or
the tempering tub BT 01 / BT 02, if high temperature accuracy in the sample is
required. When setting a process time, please note that the sample tempera-
ture is always reached a little later than the displayed block temperature.

First Steps

Setup

Plug the mains cable in the IEC socket on the back of the system and connect
it with the 230 V, 50 Hz via an earthed mains power socket.
Changeable blocks
6