Product Description; Description Of The System - Swann AMI Hydrogen QED Operator's Manual

AMI Hydrogen QED

Product Description

2.
2.1.
Application
Range
Signal
Outputs
Relay
Alarm Relay
Input
Safety
Features
A-96.250.791 / 040219
Product Description
This chapter contains technical data, requirements and perfor-
mance data.

Description of the System

The AMI Hydrogen QED is a monitor for continuous measurement
of dissolved hydrogen in water.
Two signal outputs programmable for measured values (freely scal-
able, linear or bilinear) or as continuous control output (control pa-
rameters programmable).
Current loop:
Maximal burden:
Third signal output available as an option. The third signal output
can be operated as a current source or as a current sink (selectable
via switch).
Two potential-free contacts programmable as limit switches for
measuring values, controllers or timer for system cleaning with au-
tomatic hold function. Both contacts can be used as normally open
or normally closed.
Maximum load: 1 A/250 VAC
One potential free contact.
Alternatively:
 Open during normal operation, closed on error and loss of
power.
 Closed during normal operation, open on error and loss of
power.
Summary alarm indication for programmable alarm values and in-
strument faults.
For potential-free contact to freeze the measuring value or to inter-
rupt control in automated installations (hold function or remote-off)
No data loss after power failure. All data is saved in non-volatile
memory. Over voltage protection of in- and outputs. Galvanic sepa-
ration of measuring inputs and signal outputs.
0/4–20 mA
510 Ω
7