MT339-I
Rev.0.3 08/04/2022
18 - 25
Document classified as: 2 - Company Confidential
6.4
Correction channels
MODUS
has two independent correction channels PTZ1 and PTZ2.
The PTZ2 channel has a prescaler for extending the frequency range of the impulse arriving from the
counter.
The following table shows the wiring and configuration diagram of the two channels. The number and
characteristics of the correction channels actually available depend on the order code used to purchase
the specific machine.
Channel
Clamps
Prescaler
Max
Frequency
Pressure
M2
Temperature
M1
Pulse
M3
Activation
LK2
Configuration
LK4
PTZ 1
VP1+
VS1+
VS1-
PSW1
PTA+
PTA-
D1
GND
-
-
3 Hz
PTZ 2
VP2+
VS2+
VS2-
PSW2
PTB+
PTB-
D10
GND
A-B
-
3 Hz
B-C
A
3 Hz
B
24 Hz
C
192 Hz
D
1.5 KHz
E
5 KHz
6.5
Metrological unlock Button
The Metrological unlock button is accessed removing main cover, protected by Metrological seals.
After pressing Metrological Unlock Button the software Metrological seals are unlocked and Metrological
parameters can be modified. The software Metrological seals return to locked status when display switch
off after 30 seconds of keyboard activity
.
During the period the Metrological seals are unlocked the display shows symbol
σ
as first character of
first line
When the Metrological seal is unlocked the following parameters, can be modified:
•
Vm
–
Volume at measure conditions
•
Vb
–
Volume at base conditions
•
Ve
–
Volume in error conditions
•
Energy
•
Pulse configuration
•
Device Status
•
Erase Events Queue
The activation and deactivation of the metrological unlock and the modification of the parameters are
recorded as events.
