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Site Preparation and InstallaSh Instructions EMC UST Monitoring System 1. Connect the wires (#14 AWG) from each external device to the appropriate terminals on the output module (see Figure 16, "Relay Output Module Wiring Diagram", or Fig- ure 17, "I/0 Combination Module Wiring Diagram"). Figure 16. Relay Output Module Wiring Diagram. G. EXTERNAL INPUT WIRING. The EMC can accept a dry -contact switch closure input from an external device such as a line leak detector or well moni- toring system. Each I/O Combination Module accepts two inputs. IMPORTANT! ONCE EXTERNAL INPUTS HAVE BEEN CONNECTED TO OUTSIDE DEVICES AND THE SYSTEM HAS BEEN STARTED AND PROGRAMMED, MODULE POSITIONS, CONNECTOR POSITIONS AND WIRE POSITIONS CANNOT BE CHANGED WITHOUT REPROGRAMMING THE SYSTEM! IMPROPER SYSTEM OPERATION WILL RESULT IF ANY ONE OF THESE POSITIONS IS CHANGED WITH- OUT REPROGRAMMING. Be sure to accurately record on the circuit directory the type of module, and the location of each device wired to the connector. Identify each connector with a self-adhesive number label according to the slot number. 1. For each external input, connect a shielded cable con- sisting of two 18 AWG conductors to the appropriate terminals on the output module (see Figure 17, "I/0 Com- bination Module Wiring Diagram"). 2. Ground the cable shield to the ground terminal closest to the conduit entry. Do not ground both ends of the shield on the cable run. 16 INPUT ► 1—'T -i r NoJ—J T' xo 1 -RELAY J RELAY ► rZIT, IT=rroo2cTnc rO3crru°Na AEEmY RAiINGG E C Conucls V tAl VOC J'A Ma. ar 4 -RELAY T MODULE MODULE C IEZ• • • • • • • 000000000000 CONNECTOR I I I II I�I I II II I I I I II ws RIGIDI II I I I I I ®® I I I I I I I MONITOR CONDUIT UPToa I I VO DOMOI MODULE �—EXTERNAL —►1 1 DEVICES 1 1 II II MODULE NC NO C NC NO C \I/ \I/ GROUND LUG EXTERNAL EXTERNAL DEVICE DEVICE Figure 16. Relay Output Module Wiring Diagram. G. EXTERNAL INPUT WIRING. The EMC can accept a dry -contact switch closure input from an external device such as a line leak detector or well moni- toring system. Each I/O Combination Module accepts two inputs. IMPORTANT! ONCE EXTERNAL INPUTS HAVE BEEN CONNECTED TO OUTSIDE DEVICES AND THE SYSTEM HAS BEEN STARTED AND PROGRAMMED, MODULE POSITIONS, CONNECTOR POSITIONS AND WIRE POSITIONS CANNOT BE CHANGED WITHOUT REPROGRAMMING THE SYSTEM! IMPROPER SYSTEM OPERATION WILL RESULT IF ANY ONE OF THESE POSITIONS IS CHANGED WITH- OUT REPROGRAMMING. Be sure to accurately record on the circuit directory the type of module, and the location of each device wired to the connector. Identify each connector with a self-adhesive number label according to the slot number. 1. For each external input, connect a shielded cable con- sisting of two 18 AWG conductors to the appropriate terminals on the output module (see Figure 17, "I/0 Com- bination Module Wiring Diagram"). 2. Ground the cable shield to the ground terminal closest to the conduit entry. Do not ground both ends of the shield on the cable run. 16 Figure 17. I/O Combination Module Wiring Diagram. H. EIA RS -232 INTERFACES. EIA RS -232 Interface Modules are available for the EMC �- monitor. They provide a 25 -pin female D -connector for data transmission — direct via a null modem cable or through an external modem and over phone lines — to a computer, point-of-sale terminal or printing device. 1. Cable Runs. An RS -232 Interface can be used for direct local attach- ment of terminals if the cable run is no more than 50 feet. In practice, runs longer than 50 feet have performed satis- factorily. However, since the RS -232 specification restricts operation to up to 50 feet, direct -connect cable runs greater than 50 feet are not warranted for proper operation. CAUTION: RS -232 CABLE RUNS LONGER THAN 50 FEET COULD RESULT IN DATA ERRORS, OR COM- PONENT DAMAGE OR BOTH. 2. Peripheral Equipment Requirements. Any peripheral equipment connected to an RS -232 serial port must meet the following criteria: a. Peripheral equipment must be UL listed. b. The equipment must have an EIA standard RS -232C or RS -232D communications protocol. c. The equipment must NOT be installed over or in a hazardous location. I. INTERNAL MODEM INTERFACES The 300/1200 -baud Internal Modem Interface provides snap -in jacks for direct data transmission over phone lines. 1. For connection to telephone equipment subject to local regulations 2. Maximum short circuit current: 0 amps 3. Maximum open circuit voltage: 0 volts INPUT ► 1—'T -i r NoJ—J T' xo 1 -RELAY C IEZ• • • • • • • O IAVAC 1A fba.q Ze VCt. }A Maa VO DOMOI MODULE MODULE NOT USED GROUND LUG 0000001000000 CONNECTOR CLOSEST TO CONDUITENTRY { I I I 1 I • I ( I ®� I CO DIUIT 0 I I ( I Ii MONITOR 'Ii — + — + ' NC NO C NC'INO C \/ V i \I/ \I/ INPUT -INPUT EXTERNAL EXTERNAL (SHIELDED CABLES) B DEVICE DEVICE EXTERNALINPUT RELAYOUTPUT WIRINGNISAWG E WIRING—AWG Figure 17. I/O Combination Module Wiring Diagram. H. EIA RS -232 INTERFACES. EIA RS -232 Interface Modules are available for the EMC �- monitor. They provide a 25 -pin female D -connector for data transmission — direct via a null modem cable or through an external modem and over phone lines — to a computer, point-of-sale terminal or printing device. 1. Cable Runs. An RS -232 Interface can be used for direct local attach- ment of terminals if the cable run is no more than 50 feet. In practice, runs longer than 50 feet have performed satis- factorily. However, since the RS -232 specification restricts operation to up to 50 feet, direct -connect cable runs greater than 50 feet are not warranted for proper operation. CAUTION: RS -232 CABLE RUNS LONGER THAN 50 FEET COULD RESULT IN DATA ERRORS, OR COM- PONENT DAMAGE OR BOTH. 2. Peripheral Equipment Requirements. Any peripheral equipment connected to an RS -232 serial port must meet the following criteria: a. Peripheral equipment must be UL listed. b. The equipment must have an EIA standard RS -232C or RS -232D communications protocol. c. The equipment must NOT be installed over or in a hazardous location. I. INTERNAL MODEM INTERFACES The 300/1200 -baud Internal Modem Interface provides snap -in jacks for direct data transmission over phone lines. 1. For connection to telephone equipment subject to local regulations 2. Maximum short circuit current: 0 amps 3. Maximum open circuit voltage: 0 volts