ABB XFCG4 6413 - External Integral Multi-Variable (XIMV); Table 3 XFC Board Identification

27 XFC G4 2103335 Rev AB
Table 3 XFC Board Identification
ID
Number
Description
ID
Number
Description
1
Battery Connection
14
Memory Backup Enable/Disable
2
I/O Module Interface
15
XIMV Interface
3
LCD Display Interface
16
Analog Input Connectors
4
PCCU Interface
17
RTD Connectors
5
USB Extension Port
18
Pulse Input and Digital Output Connectors
6
SD Card
19
Remote Communications Connector Comm 1
7
Ethernet Connector
20
Remote Communications Connector Comm 2
8
Reset Button (Warm Start)
21
External Charger
9
Keypad Connector
22
Remote Comm 1: Module Plug-in
10
Security Switch
23
Remote Comm 1: RS-485 Termination Jumper
11
Lithium Battery
24
Remote Comm 2: Module Plug-in
12
Battery Cover
25
Remote Comm 2: RS-485 Termination Jumper
13
Battery Mounting Bracket
26
CPU Engine Card
3.5 External Integral Multi-Variable (XIMV)
The External Integral Multi-Variable (XIMV) contains circuitry for processing all analog measurements and provides the primary
measurement capability for the flow computer. The unit is designed to provide EMI/RFI protection of the low level signals and to
protect the circuitry from other environmental effects. The XIMV contains a single circuit board which contains the analog to
digital converter and analog conditioning circuitry necessary for the XIMVs, the RTD and two general purpose analog inputs
(see Table 4).
Because the XIMV is characterized over temperature at the factory, the unit is not field repairable. All repairs should be
performed at an authorized Totalflow service center or returned to the factory. The XIMV is characterized over temperature so
that any changes occurring in the XIMV or in the electronics can be compensated.
Item
Description
Temperature Limits
Compensated -20 to 140°F (-29 to 60°C)
Operational -40 to 185°F (-40 to 85°C)
Storage -40 to 185°F (-40 to 85°C)
Analog to Digital
Resolution
18-bit maximum resolution (0.00038% FS)
18-bit nominal resolution (0.0015% FS)
Vibration Performance
1.5 INW per G (2G maximum) at 1Hz,
decreasing to zero at 1KHz in straight line mode.
Mounting Specification
Change from perpendicular (front to back/around X-axis) will be 1.5 INW (Can be corrected
with calibration)
Temperature
Operating Range
-80F to 230F (-62C to 110C)
Accuracy
 1F (0.56C) over operating range
Static Pressure
Accuracy
Includes the effects of linearity, hysteresis and repeatability
Standard Accuracy: <= 0.2% of URL (Upper Range Limit)
Optional Accuracy: <= 0.05% URL
Ambient Temp. Effect
 0.15% of URL (per 160F, 71C)
 0.125% of Reading
Stability
 0.1% of URL for 12 months
Differential Pressure (Differential Flow Computers Only)
Accuracy
Includes the effects of linearity, hysteresis and repeatability