Electro-Chemical Devices (ECD) T80 - Manual (Page 19)

Figure 2.2.2 4-Wire Transmitter, 24VDC or /110/22 VAC, MODBUS, Relays/Optional Digital Preamp
Warning: RISK OF ELECTRICAL SHOCK
Disconnect Power before opening instrument.
2.2.1 W IRING , POWER
ECD recommends using a thermoplastic, outdoor sunlight resistant jacketed cable, wet location rated and ½”
flexible conduit. The power should be hard wired with a switch or breaker to disconnect the analyzer from the
main power supply. Install the switch or breaker near the analyzer and label it as the Power Switch for the
analyzer.
Loop Powered (2 wire configuration)
Attach the 24VDC signal cable to terminals #1 and #2 as shown in Figure 2.2.1 and on the diagram inside of the
T80 cover. Feed the cable through the gland fitting on the right hand side of the T80. Tighten the cable gland to
WARNING Electrical installation must be in accordance with the National Electrical Code
(ANSI/NFPA-70), Canadian Electrical Code and/or any other applicable national or local
codes.
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