BEAMEX MC5 - Adjusting Generation and Simulation Ranges

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Calibration and Adjustment Instructions for MC5 Multifunction Calibrator For Main Firmware Version 1.90

Page 11/16

Adjustment of Generation/Simulation Ranges

The accuracy of a generation range depends on the accuracy of the respective measurement

range. Therefore the measurement range should be adjusted before trimming the generation

range. Trimming the generation range affects the overshoot and damping of the generated

value.

Several of the calibrators generation range adjustment windows include the feedback measure-

ment value. This can be used for trimming the generation range. Using an external Digital Mul-

timeter is optional for these measurement ranges.

Adjusting the Current Generation in E Module (0 … 25 mA)

Quantity: Current

Function/Port: E: Current Source/Sink

Power supply needed for the current generation can be

provided either from the calibrator or from an external

power supply unit. The connection depends on the used

power supply.

The lowermost measurement value in the current gen-

eration window is the calibrator’s own feedback meas-

urement of the generated current. It is accurate enough

for trimming the generated value. The Digital Multimeter

connected to the loop is optional.

Power Supplied from the Calibrator

The uppermost picture defines the connection when the

calibrator provides the power supply.

External Power Supply

The lowermost picture defines the connection when an

external device is used for power supply.

Adjustment Procedure

The adjustment procedure is the same for both connec-

tions.

Adjustment point ranges, mA

Low: 0.5 … 5

High: 20 … 25

Move the field indicator to the uppermost field and enter

a current generation value that is inside the limits of the

low adjustment point range. Enter the correct current

seen on the Digital Multimeter’s display to Span Refer-

ence Value field in the calibrator. Then generate a cur-

rent that is inside the high adjustment point range and

enter the correct value for that point too. Repeat the low

and high adjustments until the current generation is ac-

curate enough.

When ready, select either another Quantity and Func-

tion/Port combination or save the adjustment result as

described in chapter Saving Adjustment Data on page

16.

DMM

24.997 60

Field MENU

Calibration

Mode

17.10.2002 9:35

Current

E: Current Source/Sink

mA25.0000

Measurement mA

Span Reference Value 24.996

25.996

MULTIFUNCTION CALIBRATOR

T/C, Low V

4-w meas

R, RTD

3 & 4-w meas

V, I,

+24V

meas/sink

Low V

HART

T/C INT. RJ

T/C OR EXT

WIRES ONLY

2-w xmtr

V, ,

MEASURE

OUTPUTSENSOR MEASURE & SIMULATE

ET E

Max input:

60 VDC/30 VAC

Supply

DMM

24.0