Analog input 1 (2 to 4) – Burkert Type 1150 User Manual

Page 55

Advertising
background image

1150 - 53

C

ONFIGURATION

Analog input 1 (2 to 4) / ...

Value / selection

Description

Range

Start
- 1999
to + 9999

The instrument will change over earlier to the response defined for
overrange / underrange if the range is restricted.

Example:
Pt100 (Range: - 200 to + 850 °C). An alarm message is to be generated

for temperatures outside the range 15 to 200 °C.

Range start: 15
Range end: 200

End

- 1999 to + 9999

Display

Start
- 1999 to 0 to + 9999

On transducers with standard signal and on potentiometers, a display
value is assigned to the physical signal.

Example: 0 to 20 mA = 0 to 1500 °C.

The range of the physical signal can be 20 % wider or narrower without
generating an out-of-range signal.

End

- 1999 to 100 to + 9999

Filter

0 to 0,6 to 100 s

To adjust the digital input filter (0 s = filter off). 63 % of the alternations
are accounted for after 2x filter time constant at a signal step change.
When the filter time constant is large:
- high damping of disturbance signals
- slow reaction of the process value display to process value changes
- low limit-frequency (2nd order low-pass filter)

TK constant value

0 to 50 to 100

Temperature of the external cold-junction thermostat.

TK external

Analog input 1
Analog input 2
Analog input 3
Analog input 4

Measurement of the cold-junction temperature with an temperature
probe.

Heater current monitoring (output)

No function.
Output 1
...
Output 12

The heater current is evaluated using a current transformer with a
standard signal output, which can be monitored by linking the analog

input with a limit comparator.

The measurement is always made when the heating contact is closed.
The measurement is retained until the next measurement.

Correction value KTY

0 to 400

1 k

* Correction value

Advertising