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Maxum II Specifications, Continued
I/O Options
Standard I/O
Board Slots for Optional I/O
I/O Boards
Digital Inputs
Digital Outputs
Analog Inputs
Analog Outputs
Termination
2 analog outputs; 4 digital outputs (1 indicates system error, 3 are
user configurable); 4 digital inputs; 1 serial output
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AO 8: 8 electrically isolated analog output channels
D I/O: 4 digital inputs and 4 digital outputs
A I/O: 2 digital inputs and 2 digital outputs,
2 analog inputs and 2 analog outputs
Optocoupler with internal 12-24 Vdc power supply, switchable
with floating contacts. Alternative: switchable with external 12-24
Vdc supply (floating relay contacts only), external power supply
negative terminal connected to common for specific DI being used
Floating double-throw contacts, maximum contact load rating
1 A at 30 Vdc. Diode shunt suppression should be used for
inductive loads. A DO should not drive more than a 0.5A
inductive load. Dry contact DOs (I/O boards and Syscon) can not
be used with line voltages. The PECM has SSRs which may be
controlling line voltage for the particular application
-20 to +20 mA into 50 ohms or -10 to +10 V Rin = 1 M ohm,
mutually isolated to 10 V
0/4 to 20 mA into 750 ohms max., common negative pole,
galvanically separated from ground, freely connectable to ground
Screw compression terminal strip for braided or solid cable with
maximum section of 16 AWG or 1.5 mm2
Gas Sample Requirements (application dependent)
Sample Flow
Sample Filtration
Minimum Sample Pressure
Maximum Sample Pressure
Maximum Sample Temperature
Material in Contact with Sample
50-200 cc/min (application dependent)
0.1 μm
5 psig (35 kPa), lower pressure optional
75 psig (515 kPa), standard; higher pressure optional
250°F (121°C) standard; higher temperature optional
Stainless steel, Teflon, and polyimide; other material optional
Liquid Sample Requirements (application dependent)
Sample Flow
Sample Filtration
Minimum Sample Pressure
Maximum Sample Pressure
Maximum Sample Temperature
Material in Contact with Sample
5-20 cc/min (application dependent)
5 μm
0.3 μm if SLIV used in application
5 psig (35 kPa), standard
300 psig (2070 kPa) standard; higher pressure optional
250°F (121°C) standard; higher temperature optional
Stainless steel and Teflon; other material optional
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