Vaisala Indigo 202 - Relay Settings

4.9
Relay Settings
The Se
ttings > Relay menu contains the configuration options for controlling relays A and B.
Both relays have the same configuration options (relay A example shown here).
Output Mode Select whether the relay is activated when the measurement exceeds the
se
t trigger, or when the measurement falls below the set trigger. Set to
O if the relay is not in use.
Parameter Select which measurement parameter controls the relay.
Unit Select the unit of the measurement parameter (for example, % if the
measurement is in %CO
2
).
Low Trigger
Level and High
Trigger Level
If you want to activate the relay above or below a single setpoint without
using hysteresis, enter the same value for the low trigger and the high
trigger. The Output Mode selection defines whether the relay activates
above or below this value. If you want to set a hysteresis, define the limits
of the hysteresis with the low and high triggers.
Error State Choose the behavior of the relay when an error state occurs (switched on
or
o, or remains in its current state).
When you use a single setpoint without hysteresis, set the same value for L
ow Trigger
Level and High Trigger Level. For instructions on using hysteresis, see Setting Relay
Activation Limit Using Hysteresis.
More Information
‣
R
elay
Configuration Overview (page 41)
Chapter 4 – Wireless Configuration Interface
35