Martel Electronics 3001 User Manual

Page 22

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4.4 Resistance Temperature Detector (RTD) and Ohms Source

The 3001 can source all common RTD types and 5 custom RTD curves in °F or °C, plus
basic resistance from 5 to 4000 ohms.

The following common RTD types are supported:

Pt 385

100

Ω, 200Ω, 500Ω, 1000Ω

Pt 3926

100

Pt 3916 (JIS)

100

Ni120

120

Cu 427 (Minco)

10

YSI 400

a) Disconnect any test leads from external devices.

b) Press the

key to select thermocouple and RTD/

Ω mode, if not already

selected. If thermocouple mode is displayed, press the key again to cycle to RTD/

mode.

c) If input mode is displayed, select output mode by pressing the

and

keys.

d) Press the

key to select the desired RTD curve or ohms range. The set up

and use of custom RTD coefficients is described in section 4.5.

e) Connect the unit under test to the RTD/

Ω output terminals of the 3001 as shown in

figure 13.

Figure 13 - RTD/

Ω Output Connection

f)

Press the

and

keys to toggle the RTD display between °F and °C.

g) Use the numeric keypad to enter the desired output value and press the

key.

Alternatively, use the

or

cursor key to select a digit to modify, followed by the

or

cursor key to ramp the digit up or down. This method offers a simple

solution when small changes to an output value are required, or if specific decades
need to be incremented or decremented.

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