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DM44
DIGITAL
MULTIMETER
RESISTANCE
Maximum Safe Input Voltage: 120 V rms
between+
and
COM inputs.
Resistance Accuracy: 200 0
range-within
0.25% ±1
count, plus probe resistance; 2 kO,
20
kO,
200
kO,
and 2
MO
ranges-within
0.25%
±1count;20
MO
range-within
0.3%
±1 count.
Temperature Dependence:
20
kO,
200
kO
and 2
MO
ranges-250
ppm/°C;
200
0,
2
kO
and
20
MO
ranges-
350
ppm/°C.
Resolution:
0.1
0.
Recycle Time: At least 3 measurements/second.
Response Time: All ranges within 1 second except 2
MO and
20
MO
(within 5 seconds).
TIME
Accuracy:
+15°C
to
+35°C;
within
1%
of
reading ±1
count.
-15°C
to 55°C; within
2.5%
of
reading ±1 count.
1/TIME
Accuracy:
+15°C
to
+35°C;
within
2%
of
reading ±1
count.-15°C
to
+55°C;
within
3.5%
of
reading ±1 count.
TEMPERATURE
Range:
-55°C
to
+150°C
in 1 range.
Accuracy: Original
Probe-Within
2°
C,
-55°
C to
+125°C.
Within 3°C,
+125°C
to
+150°C.
Replacement Probe: Accuracy will equal original probe
accuracy after DM44 is compensated.
Maximum Safe Voltage on Measurement Surfaces:
±100
V (de + peak ac) above chassis ground.
Temperature (Storage and Operating): Probe Body and
Cable,
-55°
C to +105°
C.
Probe Sensor Tip,
-55°
C to
+150°C.
DC VOLTAGE
Maximum Safe Input Voltage:
±1200
V
(de+
peak ac)
between + and chassis.
Common Floating Voltage:
±500
V
(de+
peak ac) to
chassis.
DC Voltage Accuracy: Within 0.1%
of
reading,
±1.
count.
REV.
A,
DEC. 1977
466/464 DM44 Operators
69
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