2-4 | Model 900 ADA / Model 930 Sulfur Pit Analyzers
24-Hour Zero Drift
SO
2
: 0.5 % of full-scale of standard ranges
H
2
S: 1 % of full-scale of standard ranges
Model 900 only:
COS, CS
2
: 10 % of full-scale of standard ranges
Customer Connections
Analog Outputs
4 isolated 4–20 mA self-powered (or optional loop-powered; loop power
by end user).
Digital Communication
One RS-232 port used for service diagnostics.
One RS-422 port for remote communication with a Data Acquisition
System (DAS), using Modicon Modbus
®
protocol.
Optional RS-485 for Modicon Modbus
®
protocol (requires RS-232 to
RS-485 converter).
Optional System 200 Configurator Software.
Maximum Sample Gas Pressure
Maximum Sample
Pressure Transducer Gas Pressure
100 psia 350 kPag
30 psia 63 kPag
Electrical Requirements
Maximum Start-Up Power
<750 W maximum start-up with continuous average, depending on
ambient temperature (includes 150 W for ASR900 Sample Probe; excludes
Sample and Vent Lines).
Supply Voltage
120 VAC (± 10 %), 47–63 Hz
240 VAC (± 10 %), 47–63 Hz
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