Settings Menu - Dräger REGARD 3900 Series Instructions For Use Manual

Maintenance
Feature
Span calibra-
tion
Carry out zero-point calibration:
1. Select zero-point calibration for the respective channel.
2. Select channel calibration.
● If the success message is displayed, exit the menu to save the calibration.
● If an error message appears, observe the information relating to fault
Creating calibration gas
1. Use a calibration adapter to create calibration gas at the transmitter. Create
calibration gas with a concentration between 40 and 90% of measuring range
and with the flow rate specified in the instructions for use for the transmitter.
2. Let the measured value on the control unit display stabilise for 2 to 3 minutes.
3. Select the calibration menu of the respective channel.
4. Select Span calibration > Gas concentration.
5. Enter the concentration of the calibration gas and select Calibrate channel.
● If the success message is displayed, exit the menu to save the calibration.
● If an error message appears, observe the information relating to fault
Control of the transmitter output signal
1. Set the signal output of the transmitter to a value between 10 mA and 20 mA.
2. Select the calibration menu of the respective channel.
3. Select Span calibration > Signal mA.
4. Enter the transmitter signal and select Calibrate channel.
● If the success message is displayed, exit the menu to save the calibration.
● If an error message appears, observe the information relating to fault
8.2.5

Settings menu

Using the Settings menu and the channel and relay submenus, the combination of
the internal control modules, as well as the settings for the gas detection and
warning units, can be defined.
Feature
Modules (mod-
ule)
A1 relay
A2 relay
Description
Calibrate the span either by creating calibration gas at the
remote sensor transmitter or by influencing the output signal of
the transmitter using the transmitter control to simulate a gas
signal.
elimination.
elimination.
elimination.
Description
Displays the module type (mA = input module; Rly = relay mod-
ule; – = no module). Module 1 and 2 can be an input module or
no module. Module 3 and 4 can be an input module, a relay
module or no module.
Sets the A1 relay (pre-alarm) with regard to latching or non-
latching.
Sets the A2 relay (main alarm) with regard to latching or non-
latching.
®
REGARD 3900