HP E1586A, User Manual

8

HP E1586A Rack Mount Terminal Panel  

The following shows how to connect the thermistors to the HP E1413C/
E1415A current source. For the Terminal Panel’s on-board thermistors 
excitation, connect HI-I to HI-TI, and LO-I to LO-TI, respectively.

Connecting One Terminal Panel for Reference Temperature 
Measurements

In this configuration, a single Terminal Panel is used with an HP E1413C/
E1415A to provide up to 32 channels for temperature measurements. Make 
the following connections on the thermistor terminal block of the Terminal 
Panel: Connect HI-I to HI-TI Connect LO-I to LO-TI

This provides the excitation current to all three on-board thermistors on the 
Terminal Panel. Figure 3 on page 8 shows the connection for a single 
Terminal Panel

Connecting Two Terminal Panels for Reference Temperature 
Measurements

In this configuration, two Terminal Panels are used with an HP E1413C/
E1415A to provide up to 64 channels for temperature measurements. Make 
the following connections on the thermistor terminal blocks of both 
Terminal Panels:

Connect HI-I to HI-TI of the First Terminal panel Connect LO-I to LO-TI of 
the First Terminal Panel Connect LO-TI of the First Terminal Panel to HI-
TI of the Second Terminal Panel Connect LO-TI of the Second Terminal 
Panel to LO-I of the First Terminal Panel.

This provides the excitation current to all six on-board thermistors on the 
Terminal Panels. Figure 4 on page 9 shows the connection for two Terminal 
Panels.

Figure 3. Connecting Three Thermistors on a Single Panel

Connects All

Thermistors

One HP E1586 Terminal Panel

using All Thermistors