Dräger REGARD 7000 Instructions For Use Manual page 94

Operation
4. Input Constant signal maximum into the input field.
Adjustable range: 0.0 to 4.0 mA
5. Confirm inputs.
The properties and settings of the connected transmitter must be taken into
account in the configuration of the Special signals. If currents outside the defined
range are applied at the input, a signal fault is output.
With 2-wire transmitters, the intrinsic power consumption should be taken into
account when setting the special signals. Do not set any special signals lower than
typically 2.5 mA. The precise value depends on the transmitter type, length and
cross-section of the connection line (see the instructions for use for the transmitter).
A sufficient distance between Constant signal minimum and Constant signal
maximum must be set (Dräger recommends: ≥0.2mA).
To remove a Constant signal:
1. Enable the checkbox of the Constant signal.
2. Select
REGARD 7000 does not support any dynamic transmitter maintenance signals
(e.g. 3 mA - 5 mA - 3 mA at a frequency of 1 Hz) but detects them and issues an
error for the corresponding input channel. In this case, the connected transmitter
must be configured for static maintenance signal output.
7.11.6.7 Acknowledgement parameter menu
In this menu channels can be selected via which the current channel can be
acknowledged or reset.
An acknowledgement and a reset of the channels is always possible from the
Dashboard.
To add a channel:
1. Select
 A list of the channels is displayed according to the channel filter setting.
2. Select the required channels and confirm.
To remove a channel:
1. Enable the checkbox of the channel. If necessary, enable multiple channels for
removal.
2. Select
7.11.6.8 Overrange acknowledge parameter menu
In this menu the Overrange latching can be activated or deactivated and channels
for acknowledgement of a Overrange latching can be added or removed.
To activate Overrange latching:
1. Enable Overrange latching checkbox.
to remove the Constant signal from the list.
.
Possible preventive channel filter settings: Fitting channels, Available
channels, All channels
to remove all selected channels from the list.