Honeywell SC1000 User Manual download pdf (Page 81)

SC Series Instruction Manual page 81

AC/AC-LVDT Input Channel11

11.3 Calibration Procedure

If you are not familiar with operating the instrument in the SETUP menu mode,

see “SETUP Menu mode” on page 23. A listing of all menu items is given in

“Setup Menu Reference” on page 157.

Step 1: Wire the transducer to the channel’s connector.

See “Wiring” on page 80 for details.

Step 2: Enter the

CALIBRATION TYPE

You must have the capability to apply either two, three, or five known dis-

placements to the transducer. The

CALIBRATION TYPE

menu item allows you to

specify how many known displacements will be applied during calibration.

Step 3: Enter the

CALIBRATION DATA.

Consult the Certificate of Calibration for the transducer when entering infor-

mation in the

CALIBRATION DATA

sub-menu.

Step 4: Determine the LVDT’s electrical null point, then physically mount it.

The electrical null is the armature position that produces the least electrical

output. Once this point has been determined, the transducer is physically

clamped into position. See “Electrical Null and Transducer Mounting” on

page 93.

Step 5: Perform the calibration.

Using the

CALIBRATE

menu item starts the calibration process. You will be

prompted to apply displacements to the transducer as required.

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Honeywell SC1000 User Manual Page 81