Evoqua WALLACE & TIERNAN GMS PLUS, Original Instruction Manual, Page: 34 / 116

34
WT.050.455.000.DE.IM.0319
Functions
GMS
plus
4.
4.7 mA outputs
The GMS plus has three mA outputs with 4 – 20 mA output signal
to connect a line recorder, an mA remote display or another
additional processing system.
Sensor outputs:
• mA output 1 is for sensor I
• mA output 2 is for sensor II
• mA output 3 is for temperature measurement I.
A universal load monitor reports, for example, open mA loops and
excessive loads (max. 600 Ohm).
The range 4 – 20 mA is a fixed range.
It corresponds, for example, to a measuring range of:
0 ppm Cl
2
: 4 mA
5 ppm Cl
2
: 20 mA
4.8 Power fail output
A power fail output can be configured with the common alarm 1, 2
or 3.
Power supply If power is supplied to the GMS plus , the common alarm activates
(e. g. common alarm 1 = K5).
Power failure A power failure automatically releases K5 and reports an error.
The common alarm output must be set as follows:
Example of common alarm 1 Common alarm 1 => do not set assignment
Common al. mode 1 => Set "N.C. unlatched"