External Integral Multi-Variable (Ximv); Table 3 Xfc Board Identification - ABB XSeriesG4 User Manual

ID
Description
Number
1 Battery Connection
2 I/O Module Interface
3 LCD Display Interface
4 PCCU Interface
5 USB Extension Port
6 SD Card
7 Ethernet Connector
8 Reset Button (Warm Start)
9 Keypad Connector
10 Security Switch
11 Lithium Battery
12 Battery Cover
13 Battery Mounting Bracket

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
Temperature Limits
Analog to Digital
Resolution
Vibration Performance
Mounting Specification
Temperature
Operating Range
Accuracy
Static Pressure
Accuracy
Ambient Temp. Effect
Stability
Differential Pressure (Differential Flow Computers Only)
Accuracy

Table 3 XFC Board Identification

Description
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)
18-bit maximum resolution (0.00038% FS)
18-bit nominal resolution (0.0015% FS)
1.5 INW per G (2G maximum) at 1Hz,
decreasing to zero at 1KHz in straight line mode.
Change from perpendicular (front to back/around X-axis) will be 1.5 INW (Can be corrected
with calibration)
-80F to 230F (-62C to 110C)
 1F (0.56C) over operating range
Includes the effects of linearity, hysteresis and repeatability
Standard Accuracy: <= 0.2% of URL (Upper Range Limit)
Optional Accuracy: <= 0.05% URL
 0.15% of URL (per 160F, 71C)
 0.125% of Reading
 0.1% of URL for 12 months
Includes the effects of linearity, hysteresis and repeatability
27
ID
Description
Number
14 Memory Backup Enable/Disable
15 XIMV Interface
16 Analog Input Connectors
17 RTD Connectors
18 Pulse Input and Digital Output Connectors
19 Remote Communications Connector Comm 1
20 Remote Communications Connector Comm 2
21 External Charger
22 Remote Comm 1: Module Plug-in
23 Remote Comm 1: RS-485 Termination Jumper
24 Remote Comm 2: Module Plug-in
25 Remote Comm 2: RS-485 Termination Jumper
26 CPU Engine Card
XFC G4 2103335 Rev AB