Using The Hp E1586A Rack Mount Terminal Panel; Thermistor Connections And Operations; Reference Temperature Measurements - HP E1313A Manual

Using the HP E1586A Rack Mount Terminal Panel

Thermistor
Connections and
Operations
Channels
0-3 or 32-35
Terminal Block
Channels Thermistor
4-7 or 36-39 Terminal
Terminal Block Block
Thermistor Excitation
Sources
Reference
Temperature
Measurements
Chapter 3
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This section shows how to use the HP E1313/E1413 with the HP E1586A
Rack Mount Terminal Panel.
The HP E1586 Rack Mount Terminal Panel's three thermistors are located
next to the channel 3 terminal block, between channels 11 and 16, and next
to channel 24 (see Figure 3-5). The following section shows how to connect
and measure the thermistors.
Channels
8-11 or 40-43
Terminal Block
Channels
12-15 or 44-47
Terminal Block
Figure 3-5. Terminal Panel Connections
The HP E1313/E1413 provides a 122µA current source as the excitation for
the thermistors. This is available on the Terminal Panel's terminals labeled
HI-I and LO-I. The excitation current is ONLY available to the Terminal
panel connected to channels 00 - 31 of the HP E1413. This current is NOT
on the Terminal Panel connected to channels 32 - 63 of the HP E1413.
The following section shows how to connect the thermistors to the
HP E1413 current source. For the Terminal Panel's on-board thermistors
excitation, connect HI-I to HI-TI, and LO-I to LO-TI, respectively.
This section shows how to make reference temperature measurements on
the HP E1586 thermistors using the HP E1313/E1413 module. The
methods to measure the thermistor reference temperature depends on the
location of the Terminal Panel. For Terminal Panels mounted away from
heat sources, it is only necessary to measure the center thermistor. Use the
information in "Measuring Using the Center Thermistor" .
For Terminal Panels mounted in such a way that temperature gradients are
generated along its length, measure all three thermistors. Use the
information in "Measuring Using the Left, Center, and Right Thermistors" .
Channels
16-19 or 48-51
Terminal Block
Channels Thermistor
20-23 or 52-55 Terminal
Terminal Block Block
Using the HP E1313/E1413
Channels
24-27 or 56-59
Terminal Block
Channels
28-31 or 60-63
Terminal Block
93