Fisher-Rosemount 3095FT, Manual

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Rosemount Model 3095FT HART Flow Transmitter
3-12
Recharging the Battery Always measure the Remote Power Supply battery voltage with a
multimeter before installing the Remote Power Supply. If the voltage is
below 12.5 volts, recharge the Remote Power Supply battery:
1. Connect battery wires.
2. Connect a power supply to the supply terminals as illustrated in
Figure 3-5.
3. Allow the battery to charge for the duration indicated in Table
3-1, or until the battery voltage is at or above 12.5 V at 68 °F
(20 °C). Note that the battery recharges faster at lower power
supply voltages than higher power supply voltages.
4. After Step 3, recheck the battery voltage to verify that the voltage
is at or above 12.5 V at 68 °F (20 °C). The battery is fully charged
at 13.9 V dc.
TABLE 3-1. Battery Charge Time.
Contact with caustic materials can cause blindness or
serious burns. If the remote power supply battery is cracked
or leaking, rinse any residual acid gel present, and replace
damaged parts. Dispose of the battery in an
environmentally responsible manner.
Explosions can cause death or serious injury. Do not
exceed 36 V dc when recharging the battery.
Power
Supply
Voltage
Approximate Time to fully
charge battery
(to 13.9 V at 68
°
°F)
15 V 2.5 days
30 V 3.75 days
36 V 4.5 days