2-4 | Model 933S UV Analyzer
Customer Connections
Analog Outputs
4 isolated 4–20 mA
DC
, loop or self-powered, 30 V
DC
maximum.
4 non-isolated 1–5 V
DC
.
5 independent sets of SPDT, Form C, potential free relay contacts, 2 A
maximum at 240 V
AC
.
Digital Communication
One RS-485 port (for Modicon Modbus
®
protocol).
One RS-232 port (or optional RS-485) for service diagnostics.
Explosion-Proof RS-232 Serial Communication Port on Lower Enclosure.
Digital Inputs
For Auto-Cal and Alarm Enable/Clear:
0–24 V
DC
, 30 V
DC
Maximum.
Electrical Requirements
Maximum Start-Up Power
< 500 W maximum start-up with continuous average, depending on am-
bient temperature (excluding Sample and Vent Line).
Supply Voltage / Maximum Current
ATEX/Hazardous Locations:
120 V
AC
, 50/60 Hz, 3 A Maximum
240 V
AC
, 50/60 Hz, 1.5 A Maximum
CSA:
104~132 V
AC
, 50/60 Hz, 3 A Maximum
208~264 V
AC
, 50/60 Hz, 2 A Maximum
Sample Gas Flow Rate
Maximum 20 NLM (42.4 SCFH) for the High Pressure/Low Range Kit.
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