FB2100/FB2200 Flow Computer Coin Cell Battery Field Replacement Guide
D301855X012
November 2020
1
Removing/Replacing Batteries
The coin cell SRAM backup battery preserves data in SRAM memory in the event of a power loss
and provides backup power to the real-time clock.
Refer to the table below for the correct field replacement kit part number.
Item
Field Replacement Kit
Part Number
Coin cell lithium battery for SRAM backup
395620-03-1
UL Kit File Number: E192567
Ambient Temperature Range
May be used up to a
maximum
ambient temperature of 80
°
C and a
minimum
ambient temperature
of –40
°
C; refer to the data plate attached to the device.
Required Tools
#2 Phillips-head screwdriver
Hexagonal torque wrenches with 3mm and #1 Phillips-head bits. Ranges must include 4 to 6
in-lbs (0.5 to 0.7 N-m).
Electrical Ratings
Input Voltage: 10.5 Vdc to 30 Vdc external supply (Max power at 10 watts)
Restriction
Hazardous area approvals require that any part replaced in the field be the exact same part (like for
like). Upgrading or substituting different parts violates hazardous area certification.
Important
Use only accessories (batteries) supplied with the flow computer or sold by Emerson as spare parts
for this flow computer. Substituting a part you obtain elsewhere (such as a battery) voids your
approval certification.
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
DANGER
EXPLOSION HAZARD: Never open the enclosure in hazardous location. Opening the enclosure in
a hazardous location could result in an explosion.
WARNING
EXPLOSION HAZARD – Substitution of any components may impair suitability for Class 1,
Division 2.
