Brooks Instrument SLA7810/20 - Manual (Page 15)

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Section 1 Introduction
Model SLA7810 & SLA7820
Installation and Operation Manual
X-PR-SLA7800-PC-eng
Part Number: 541B047AAG
December, 2008
Electrical Connections
Analog I/O option: 15-pin, male
Digital I/O DeviceNet option: 5-pin Micro-Connector, male
Power Supply Voltage
Electrical Connections (continued)
Analog option: +15 Vdc, ±5%
(traditional -15 Vdc pin is ignored)
Digital I/O DeviceNet option: 11-25 Vdc nominal = +24 Vdc
Power Requirements
Analog I/O option, with valve: 3.6 Watts Typical, 4.0 Watts Max.
Digital I/O DeviceNet option, w/valve: 6.9 Watts Typical, 7.6 Watts Max
Class III Equipment: The dc Mains input shall be supplied from a SELV
(Separated Extra-Low Voltage) source.
Output Signals
Pressure Output (Analog I/O option only)
0-5 Vdc into 2 Kohm-minimum load. Output will indicate process-variable
up to 5.5 Vdc (110% F.S.).
5 Volt Reference Output
5 Volts ±0.2% min Load 1 Kohms.
Pressure Setpoint Signals
Command-Setpoint Input (Analog I/O option only)
0-5 Vdc: Input will accept signals to 5.5 Vdc (110% F.S.).
Input resistance: 200 Kohm nominal.
Process Connections
Standard inlet and outlet connections supplied on the Model SL7810
and Model SL7820 are 1/4"(M) VCR
TM (standard)
C Seal (SEMI 2787.1)
CS Seal (SEMI 2787.5)
W Seal (SEMI 2787.3)
Environmental Conditions
Installation Category: “I”
Pollution Degree: 2
Humidity: 50-80% Relative Humidity
Meter Altitude: 6562 feet (2,000 meters)
For Indoor Use ONLY
Mains supply voltage fluctuations not to exceed ±10% of the nominal
voltage
Valve Override Signal (Analog I/O option only)
IF Left floating, unconnected or grounded instrument controls valve to
setpoint.
IF Connected to signal at or above 10.0 Volts, valve is forced open.
IF Connected to signal at or below 0.0 Volts, valve is forced closed.