HP 10023A Operating Note

HEWLETT
PACKARD
OPERATING NOTE/JUNE 1980
Figure 1. Model 10023A Temperature Probe
1. INTRODUCTION.
2. This operating note provides operating information
for the Hewlett-Packard Model 10023A Temperature
Probe
(figure 1). Probe
characteristics
are listed in
table 1.
3. DESCRIPTION.
4, The 10023A is designed as a diagnostic tool for meas- |
urements in circuit design and troubleshooting, estima-
tion of junction temperature and power input in small
transistors, and other general purpose surface tempera-
ture measurements. The 10023A can be used with any
voltmeter having an input impedance of 10M or
greater, such as the 1700 series oscilloscope option
034/035 Digital Multimeter. The 10023A thermal char-
acteristics include low thermal loading, high thermal
isolation, and a fast response time. This combina-
"tion provides stable measurements on small electronic
components with minimal temperature change of the
component being measured and minimal sensitivity to
ambient temperatures.
oS. The probe tip contains a forward biased diode
mounted on a substrate assembly. The probe output
voltage (Vo) is 1 mV/°C within the temperature range of
—55°C to +150°C. Calibration of each probe is accom-
plished at the factory by means of a laser trim operation
to match each tip diode to its electronic compensating
circuit. In case of damage, the probe is easily repaired
with a new, precalibrated tip and matching com-
pensating network.
POSITION PPAPPIPIPS
$ CAUTION }
Sudan te Satna te ta te te te De
POO GOT DIE IS
The Model 10023A Temperature Probe is not
intended for use as a temperature monitor in
environmental test chambers. Using as such
may cause degradation of the probe charac-
teristics and performance.
6. The 10023A Temperature Probe is powered by a self-
contained, customer replaceable battery that provides
50 hours of continuous probe operation.
7. Accessories supplied with the 10023A are:
a. One replacement battery (HP Part No. 1420-
0256).
NOTE |
Replacement batteries may be purchased
locally using the following part numbers:
RAY-O-VAC ®1 No. RS-312-G or T-312-G;
DURACELL ©2 No. 10L125;or batteries with
similar specifications.
®1RAY-O-VAC isa registered trademark of ESB, Inc.
®2 DURACELL is a registered t trademark of P.R. MALLORY
& CO., Inc.
Operating Note Part No. 10023-90901
Microfiche Part No. 10023-90801
PRINTED IN U.S.A.