SOL-96.110.031 / 260422
TOPAZ Ammonium
Product Description
8
2.
Product Description
Application
range
The TOPAZ Ammonium is a complete monitoring system for the
measurement of ammonium NH
4
+ in potable water, waste water and
effluents.
Measuring
principle
Indophenol method; colorimetric determination of ammonium ions
after chemical reaction in an alkaline environment.
Configurations
The instrument is available in the following configurations:
Three measuring ranges:
– Topaz Ammonium LR: 0 to 500 ppb
– Topaz Ammonium HR: 0 to 2 ppm
– Topaz Ammonium HRx25: 0 to 50 ppm
LR and HR variants are available with one, two, four or six
measuring channels (common measuring range)
HRx25 variant is available with one sample stream only.
Signal
outputs
Two signal outputs per measuring channel.
Current loop:
4–20 mA
Relays
Five potential-free contacts per measuring channel with the following
functions:
two thresholds (high/high, low/high or low/low)
sample flow alarm
indication of the active measuring channel
maintenance indication
Maximum load: 1 A/24 V
Alarm relay
One summary alarm for “analyzer failure”.
Maximum load: 1 A/24 V
Digital inputs
One digital input per measuring channel to select the active sample
stream and one digital input to stop measurement.
To use the digital inputs, select control mode 3 (see
).