Specifications

Transmitter M400/2(X)H, M400G/2XH 61

Printed in Switzerland 30 031 683

Time to Maintenance: This timer estimates when the next cleaning cycle should be performed to

keep the best possible measurement performance. The timer is influenced by significant changes

on the DLI parameters.

Time to Maintenance YES / NO

Alarm YES / NO R# choose OC

The time to maintenance can be reset to the initial value by the menu ”Reset ISM Counter Timer”

(see chapter 8.6.5 “Reset ISM counter/timer”). For amperometric oxygen sensors, the time to

maintenance indicates a maintenance cycle for the membrane and electrolyte.

Press [ENTER]

Activation of the Adaptive Cal Timer: This timer estimates when the next calibration should be

performed to keep the best possible measurement performance. The timer is influenced by sig-

nificant changes on the DLI parameters.

Adaptive Cal Timer YES / NO

Alarm YES / NO R# choose OC

The Adaptive Calibration Timer will be reset to his initial value after a successful calibration. After

a successful calibration will also be the alarm reset. If the Adaptive Cal Timer is turned on, the

value will be automatically shown in the display on line 4.

Press [ENTER]

The initial value for Time to Maintenance as well as the Adaptive Calibration Timer can be modi-

fied according to the application experience and loaded down to the sensor.

NOTE: By connecting a sensor, the values for Time to Maintenance and/or Adaptive Calibration

Timer are read out by the sensor.

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

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

changes made.

8.6.2 CIP Cycle Limit

Navigate to the menu “CIP Cycle Limit” by using the  and . keys and press [ENTER].

The CIP cycle limit counts the number of CIP cycles. If the limit (user defined) is reached, an

alarm can be indicated and set to a certain output OC. The following options are possible:

CIP Max 000 Temp 055

Alarm YES / NO R# choose OC

If the Max setting is on 000, the counter functionality is turned off. The alarm will be reset after

exchanging the sensor. For oxygen sensors, the counter can be reset (see chapter 8.6.5 “Reset

ISM counter/timer”).