User Manual
Pulse output module T450 Subject to change without prior notice 4
• Close the housing cover by tightening the screw (see chap-
ter Torque, Installation Instruction) and press the housing
cover tightly into place.
Depending on the design of the housing, please also observe
the following points:
• For IP 68 versions of the housing, tighten the cable gland.
• For the IP 54 version of the housing, make sure that the
grommet is seated correctly.
Note: No later than 60 seconds after installation, the
meter automatically detects the inserted mod-
ules and is ready for communication or pulse output.
5. Testing the module
Proceed as follows to test the module:
• Press the service button for 3 sec. until the LCD displays
.
• Press button 2 to activate the parametrization.
• Press the button 1 until the LCD displays
.
• Press button 2 to test the module.
The function in the parameter setting mode
of the meter forces a pulse output on both channels.
Note: Each further pressing of button 2 causes a
pulse to be output on both channels.
Finish module test
To exit the module test, proceed as follows:
• Press button 1 repeatedly until the LCD displays
.
• To switch into normal operation press button 2.
6. Technical Data
Output type
Open drain
Classification
OB / OC (according EN 1434-2)
Voltage
Max. 30 V
Current
Max. 30 mA
Dielectric strength
500 V
eff
against ground
Voltage drop
0.9 V at 30 mA (OB) / 0.1 V at 0.1 mA (OC)
Recommended
cable diameter
4 – 6 mm
Recommended wire
cross section
0.25 – 0.75 mm²
Output connection
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Landis+Gyr GmbH
Humboldtstrasse 64
90459 Nuremberg
Germany