Chapter 13 Specifications
279
13
(1) Conditions of guaranteed accuracy
(2) Additional accuracy (Add the following error components to the
instrument’s measurement accuracy.)
(3) Internal offset resistance
Measurement Specifications
Warm-up time Same as instrument with the Z3003.
Temperature and hu-
midity range for guaran-
teed accuracy
23±5°C, 80%RH or less
Period of guaranteed
accuracy
1 year
Accuracy specifica-
tions conditions
When using a 2-wire setup, accuracy is guaranteed only after zero-adjustment.
Temperature coefficient From 0°C to 18°C and 28°C to 40°C, add a temperature coefficient of ±(1/10
of additional accuracy)/°C.
Effects of leak current Add a reading error as follows depending on the measurement current
(when using guarding)
(With humidity of less than 70% RH. If the humidity is greater than or equal to
70% RH, add the following rdg. error × 5.):
Effect of measurement
speed
Add the f.s. error component as follows when the integration time is not a
whole-number multiple of the power supply cycle:
Effect of offset voltage Add the following resistance to the error when OVC is OFF
Effect of offset
resistance fluctuations
When using a 2-wire setup, add the following wiring resistance to the error
component.
0.1 []
Internal measurement
circuit resistance value
0.5 (default)
1 × 10
-9
[A]
I
MEAS
[A]
× 100 [%rdg.]
I
MEAS
: Measurement current
A
fs
: f.s. error component for instrument with the Z3003
A
fs
× 0.5 [%f.s.]
10 × 10
-6
[V]
I
MEAS
[A]
[]
I
MEAS
: Measurement current
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