SIKA TD 32500 Operating Manual
3.3.2 Alarm output
As an option, TD 32500 is equipped with two Open-Collector alarm outputs.
These can provide a current of 30 mA for switching a load. This current is
sufficient to switch a power relay of 24 VDC / 1000 Ω. Depending on
programming, with a set-off alarm is the load through the alarm output of
the open-collectorswitched against (working current alarm) or separated
from the supply voltage (closed circuit alarm).
For these alarm outputs, the following settings can be selected, in each
case independently from each other:
1. Alarm source: flow rate, total flow (resettable), or
temperature alarm
2. Alarm type: minimum or maximum alarm
4. Hysteresis of the alarm set value
3.3.3 Analogue output
The TD 32500 is optionally equipped with an analogue output. The
analogue output can be set in the following way:
1. Source of the analogue output: flow rate, total flow
(resettable), or temperature analogue output
2. Type of analogue output: 0-20 mA, 4-20 mA or 0-10 V
3. Range of analogue output
In mode 0-20 mA or 4-20 mA a current is driven through the working
resistance against the negative pole of the supply voltage. The working
resistance must be smaller than 500 Ω if the supply voltage is 12 VDC, and
1000 Ω if the supply voltage is 24 VDC.
In mode 0-10 V a supply voltage of at least 15 VDC is required.
3.3.4 Frequency divider output
TD 32500 is optional equipped with a frequency divider output. The
generated frequency can either be the same as with flow sensor or the
frequency of the flow sensor is divided by a free selectable integer factor.
The frequency divider output is designed as Open-Collector-Output and
switches a maximum load of 200 Ω between +5 VDC and 0 VDC.
The programmable deviding rate must be selected in such a way that a
maximum output frequency is kept below 1000 Hz.
3.3.5 Power supply
Power supply of TD 32500 is 12 VDC up to 24 VDC.
Note: Using the analogue output 0 up to 10 V requires a supply
voltage of at least 15 VDC.
To Next Page
Loading...
Need help?
General
