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Ae f b – Laurel Electronics LAUREATE SERIES DPM User Manual

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14.

Pt100 RTD'S

14.1

RANGE JUMPER SELECTION

DIGIT SELECT KEY

VALUE SELECT KEY

Press

to select short.

Press the

key to display

InPut (Input type selection).

Press the

key until rESEt is displayed. Short the input leads at the RTD sensor. Press

the

key to store value. Set up for RTD per section 14.3

Press

to display input

selected. Press

again

until rtd is displayed.

14.2

2-WIRE RTD LEAD COMPENSATION

This section describes how to remove the error caused by lead resistance in a 2-wire RTD.
Ambient temperature changes will cause some error in the readings; the higher the lead
resistance, the greater the error. When performing this procedure, the leads should be shorted
together as close as possible to the RTD. This step is not necessary when using 3- or 4-wire
RTD's since lead resistance compensation is automatic in the meter. When setting up the
meter, it may be necessary to enable some of the menu items. See Section 9 for further
information.

MENU KEY

All RTD Types

Jumpers Required

2-,4-wire

b, e

Figure 14.1 Temperature Signal Conditioner

Note: See Section 22 to select 10 Vdc excitation.

Jumpers Required

3--wire

a, e

a

e

f

b