11
Resistance D/A output accuracy (RM3545)
Output accuracy
Resistance measurement accuracy ±0.2%f.s., (temperature coefficient ±0.02%f.s./°C)
Response time
Measurement time + Max. 1 ms
RM3545
Z3003 additional error
Effects of leak current
Add a reading error shown on right depending on the measurement current
(when using guarding) (With humidity of less than 70% RH. If the humid-
ity is greater than or equal to 70% RH, add the following rdg. error × 5.):
1×10
-9
[A]
I
MEAS
[A] ×100 [%rdg.]
Effect of measurement
speed
Add the f.s. error component shown on right when the integration time is
not a whole-number multiple of the power supply cycle:
A
fs
× 0.5 [%rdg.]
Effect of offset voltage
Add the resistance shown on right to the error when OVC is OFF:
10×10
-6
[V]
I
MEAS
[A] [Ω]
Effect of offset resistance
fluctuations
When using a 2-wire setup, add the wiring resistance shown on right to
the error component.
0.1 Ω
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.
I
MEAS
:
Measurement
current
A
fs
:
f.s. error component
for RM3545
-02
with
Z3003
Additional accuracy when using the Z3003
When performing measurements using the Z3003, the following uncertainties are added to the RM3545 specifications
(accuracy):
RM3545
RM3544
Accuracy = ±(% rdg. + % f.s.)
• f.s. = calculated 30,000 dgt., where 0.010% f.s. = 3 dgt.
Range
Max. measurement
display
*6,*7
FAST
MED/SLOW
Measurement
Current
*8
Open-Circuit
Voltage
30mΩ
35.000 mΩ
0.030+0.080
0.030+0.070
300mA
5.5Vmax.
300mΩ
350.00 mΩ
0.025+0.017
0.025+0.014
300mA
3Ω
3.500 0 Ω
0.025+0.017
0.025+0.014
30mA
30Ω
35.000 Ω
0.020+0.010
0.020+0.007
10mA
300Ω
350.00 Ω
0.020+0.010
0.020+0.007
1mA
3kΩ
3.500 0 kΩ
0.020+0.010
0.020+0.007
1mA
30kΩ
35.000 kΩ
0.020+0.010
0.020+0.007
100μA
300kΩ
350.00 kΩ
0.040+0.010
0.040+0.007
5μA
3MΩ
3.500 0 MΩ
0.200+0.010
0.200+0.007
500nA
*6 For negative values, to -10% f.s.
*7 The maximum display range is 99,999dgt.
*8 Measurement current accuracy is ±5%.
RM3544
(
Example) 0.020 + 0.007 ....... 0.020
%
rdg. + 0.007
%
f.s.
•
Analog Input
(for RM3545)
Guaranteed accuracy range
0 to 2 V
Maximum allowable voltage
2.5V
Resolution
1mV
Display range
-99.9 to 999.9 ºC
Measurement period (speed)
Approx. 50 ms,
no moving average
Period of guaranteed accuracy
1 year
Accuracy
±1%rdg. ±3 mV
RM3545
Temperature measurement accuracy (RM3544/RM3545)
•
Temperature Sensor Z2001 and RM3545/RM3544/RM3544
-01
combined accuracy
Temperature
Accuracy
-10.0 ºC to 9.9 ºC
± (0.55 + 0.009 × |t-10| ) ºC
10.0 ºC to 30.0 ºC
± 0.50 ºC
30.1 ºC to 59.9 ºC
± (0.55 + 0.012 × |t-30| ) ºC
60.0 ºC to 99.9 ºC
± (0.92 + 0.021 × |t-60| ) ºC
Standalone instrument accuracy: ± 0.2 ºC
t:
Temperature measurement values
[ºC]
•
Temperature Sensor Z2001
(for RM354
4/RM3544
-01
)
Range of guaranteed accuracy
-10.0 to 99.9 ºC
Display refresh rate
Approx. 2 s
Guaranteed accuracy period
1 year
RM3544
RM3545
* Shortest time when using an external trigger source or with continuous mea-
surement off (other than free-run). With a delay of 10 ms, TC on, comparator
on, OVC off, and averaging off. Measurement speed varies with the selected
range and settings. For more information, please see the Instruction Manual.
Range Measurement
current
Measurement speed
FAST
MED
SLOW1 SLOW2
50Hz 60Hz
10 mΩ
N/A
41
61
58
141
241
100 mΩ
High
41
61
58
141
241
1000 mΩ
High
2.2
22
19
102
202
10 Ω
High
2.2
22
19
102
202
100 Ω
High
2.8
23
20
103
203
Unit: ms,
Tolerance: ±10% ±0.2 ms
Measurement time typical values
(RM3545)
RM3545
RM3544
* With TC set to ON and the comparator set to ON
Measurement speed
FAST
MED
SLOW
50Hz
60Hz
21
18
101
401
Unit: ms, Tolerance:
±10% ±2 ms
Measurement time (RM3544)
