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WEB600 User’s Manual
4–20MA CURRENT LOOP TRANSDUCERS
The inputs on the Web600 are compatible with transducers that produce an analog output current of 4
to 20mA. Such transducers are available to measure tank and well levels, extreme temperatures, air pres-
sure, water pressure, flow, voltage, current, rotational speed, etc. Contact our technical support depart-
ment for assistance regarding your monitoring requirements. Follow the wiring diagrams below for
connecting a 4–20mA device:
External
24V
Power
Supply
FGD-0053
4-20 mA
Transducer
Figure 10: Wiring a 4–20mA device using an external 24 VDC supply.
BATTERY BACKUP (OPTIONAL)
The WEB600 has an optional rechargeable battery backup module available (part #FGD-W610-B) which
can provide up to 2 hours of backup time in the event of a power failure. The battery module connects
to the WEB600 using a short cable included with the battery module. Simply connect the cable to the
Battery Backup connector on the WEB600. The unit will charge the battery and monitor its charge level.
The percent charge can be viewed on the Summary screen. Note that upon initial connection it may
take up to 5 minutes for the unit to discover that a battery has been connected. Once the WEB600 sees
the battery it will enable the battery channel on the Battery programming screen (see Zones menu). To
receive a low battery alarm you must enable Alarm Message Delivery and configure the Alarm Schedule
BDDPSEJOHMZ:PVNVTUBMTPTFUB-PX"MBSN-JNJUoBWBMVFOPUMPXFSUIBOJTTVHHFTUFE0ODFUIF
battery reaches this level it has very little capacity left and will shutdown the system within a short peri-
od of time. The battery module contains circuitry to protect the battery from deep discharge damage
and will disconnect the load when all of its available energy has been expended.
Battery back up module and WEB600
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