Function Test - Rohde & Schwarz HAMEG Instruments HM8012 Manual Del Usaurio

F u n c t i o n T e s t

Function Test

This test should help verify, at certain intervals,
the functions of HM801 without any great expen-
diture in measurement instruments. To achieve
thermal balance, the module and the basic instru-
ment, in its case, must be energized for at least
60 minutes before the test begins.
Measurement equipment used
Calibrator AC/DC for instance Fluke 5101B / Fluke
5700A / Rotek 600
Resistors of 5 k , 50 k , 500 k 0.01% for instance
model S10 J by Vishay
Resistors 500 k , 5 M 0.0%, for instance models
CNS00 by Vishay.
Test procedure
If one of the indicated calibrators is available or
if precision calibrators are appropriate, all the
HM801 measurements ranges can be checked
using the following tables which indicate the limit
values. Recalibration, however, should only be
performed if the appropriate precision calibrator
is available.
Before any change of ranges, ensure that the
signal at HM801 does not represent an unaccep-
table load of the object under examination. For the
link between the calibrator and HM801, shielded
cables must be used to prevent any unwanted
influence caused by the measurement signal.
a) DC voltage ranges
No. Range Reference
(+ °C)
1 500 mV 50 mV
 5 V .5 V
 50 V 5. V
 500 V 50 V
5 600 V 550.00 V

Subject to change without notice
Display limits
9.85 - 50.15
.986 - .501
.985 - 5.015
9.86 - 50.1
59.7 - 550.
b) AC voltage ranges
No. Range Reference
(+ °C)
1 500 mV 50 mV
 5 V .5 V
 50 V 5 V
 500 V 50 V
5 600 V 550 V
(1) = 0 Hz to 5 kHz
() = 0 Hz to 0 kHz
() = 0 Hz to 1 kHz
() = 0 Hz to 1 kHz.
c) DC current ranges
No. Range Reference
(+ °C)
1 500 µA 50.00 µA
 5 mA .5000 mA
 50 mA 5.000 mA
 500 mA 50.00 mA
5 10 A 1.800 A
d) AC current ranges (f = 400 Hz)
No. Range Reference
(+ °C)
1 500 µA 50.00 µA
 5 mA .5000 mA
 50 mA 5.000 mA
 500 mA 50.00 mA
5 10 A 1.800 A
e) Resistor ranges
No. Range Reference
(+ °C)
500 00.00
1
 5 k .0000 k
 50 k 0.000 k
 500 k 00.00 k
5 5 M .0000 M
6 50 M 0.000 M
Display limits
(1) 8.65 - 51.5
() 7.15 - 5.85
(1) .865 - .515
() ,715 - .585
(1) .865 - 5.15
() .715 - 5.85
() 8.65 - 51.5
() 7.15 - 5.85
() 57. - 55.6
() 5.0 - 555.9
Display limits
9.8 - 50.5
.98 - .505
.98 - 5.05
9.8 - 50.5
1.79 - 1.806
Display limits
7.9 - 5.1
.79 - .51
.79 - 5.1
7.9 - 5.1
1.775 - 1.85
Display limits
199.8 - 00.17
1.9989 - .0011
19.989 - 0.011
199.89 - 00.11
1.999 - .0061
19.9 - 0.061