MGS-150 Manual
22
6309-9000 Rev 2
Section 5. Configurations
5.1. Overview
Function
Description
Time Delay
Available on the audible alarm and relay to avoid false
alarms. This is set with jumpers.
The default delay is
0 minutes.
You may wish to set to 15 minutes during
start up. See Figure 2 and Figure 3 for setting the
jumpers.
Audible
Alarm
The units have an internal audible alarm. You can
disable this by jumper, but the
default setting is
“enabled”
in compliance with EN378. See Figure 2
and Figure 3 for setting the jumpers.
Output
Decide which output is required: 4-20mA, 1-5V, 0-10V,
relay outputs, etc. See Figure 2 and Figure 3 for
setting the jumpers.
5.2. Adjusting the Alarm Set Point
This process is the same for all versions using pot P1 and test points 0V
and REF1.
Step
Adjusting the Alarm Relay
1
Locate Pot P1 and use it to adjust the set point at which the
relay activates.
2
Monitor the output between test points 0V (negative) and
REF1 (positive) until the correct setting is reached. See
example below.
Example:
For a sensor range of 0-1000 ppm, calculate the voltage to
set the relay at 100 ppm.
𝐀𝐥𝐚𝐫𝐦
𝐏𝐨𝐢𝐧𝐭
𝐕𝐨𝐥𝐭𝐚𝐠𝐞
=
𝐀𝐥𝐚𝐫𝐦
𝐕𝐚𝐥𝐮𝐞
×
𝟓
𝐕
𝐌𝐚𝐱
𝐑𝐚𝐧𝐠𝐞
𝐀𝐥𝐚𝐫𝐦
𝐏𝐨𝐢𝐧𝐭
𝐕𝐨𝐥𝐭𝐚𝐠𝐞
=
𝟏𝟎𝟎
𝐩𝐩𝐦
×
𝟓
𝐕
𝟏𝟎𝟎𝟎
𝐩𝐩𝐦
=
𝟎
.
𝟓
𝐕
So the alarm voltage setting is 0.5 Volts.
Summary of Contents for MGS-150
Page 10: ...MGS 150 Manual 10 6309 9000 Rev 2 Figure 2 EC or IR Sensor Components and Wiring...
Page 11: ...MGS 150 Manual 6309 9000 Rev 2 11 Figure 3 SC Sensor Components and Wiring...
Page 18: ...MGS 150 Manual 18 6309 9000 Rev 2 Figure 5 IP66 Housing with Splashguard...
Page 33: ...MGS 150 Manual 6309 9000 Rev 2 33...
Page 34: ...MGS 150 Manual 34 6309 9000 Rev 2...
