Mettler Toledo M400 Spezifikationen PDF herunterladen (Seite 46)

Transmitter Multiparameter M400 46

Printed in Switzerland 52 121 378

Each Alarm Relay can be conﬁgured in either a Normal or Inverted state. In addition, a Delay

for the activation can be set. For more information, refer to Section 8.4.

If power failure is turned on, only inverted state is possible and cannot be changed.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will

discard the entered values, selecting Yes will make the entered values the current ones.

8.5.2 Clean

Conﬁgure the Relay to be used for the cleaning cycle.

The Default value is Relay 1.

The Cleaning Interval can be set from 0.000 to 999.9 hours. Setting it to 0 turns the clean

cycle off. The cleaning time can be 0 to 9999 seconds and must be smaller than the Cleaning

Interval.

Select the desired Relay state: Normal or Inverted.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will

discard the entered values and return to the measurement display screen, selecting Yes will

save changes made.

8.6 ISM Set up (only available if an ISM sensor is connected)

8.6.1 Sensor Monitoring

The sensor monitoring options can be turned on or off and every Alarm can be assigned to a

certain output relays. The following options are possible:

Lifetime indicator: The dynamic lifetime indication allows an estimation, when the sensor (pH)

or inner body (DO) or OptoCap is at the end of his lifetime, based on the actual stress he is

exposed to. The sensor permanently takes the averaged stress of the past days into

consideration and is able to increase / decrease the lifetime accordingly.

Lifetime Indicator YES / NO

Alarm YES / NO R# choose relay

The following parameters affect the lifetime indicator:

Dynamic parameters: Static parameters:

– Temperature – Calibration history

– pH or oxygen value – Zero and Slope

– Glass impedance (only pH) – Phase 0 and Phase 100 (only optical DO)

– Reference impedance (only pH) – Illumination time (only optical DO)

– CIP / SIP / Autoclaving cycles

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Mettler Toledo M400 Spezifikationen Seite 46