Tektronix TEKTOOLS DMM157 - Specifications; General Characteristics; Measurement Ranges and Accuracies

Specifications
Accessories
Test leads (pair), protective hol-
General Characteristics
ster, battery, and instructions
31, digit Liquid Crystal Display
(LCD) With a maximum reading
of 1999. Extended resolution of
2999 counts is possible in manu-
al range mode. In the extended
resolution operating mode,
readings above 1999 are dis-
played with a blinking "1" most
significant digit. The blinking "1"
should be interpreted as the digit
2. The three least significant dig-
its display data normally.
Automatic; positive implied, neg-
ative indicated
"1" or "—I" blinks
The"
"symbol is displayed
when the battery voltage drops
below the operating voltage
level.
2 times/second
0 C to +35 C, 0-80% R.H.
35' C to +50 C, 0-60% R.H.
—20
-
C to +60 C, 0-80% R.H.
with battery removed from the
multimeter
Single standard 9 V battery:
NEDA 1604, J1S006P, or IEC6F22
Alkaline 400 hours
165 mm x 85 mm x 38 mm
(6.5 in x 3.3 in x 1.5 in)
with holster
DMM155: 380g (13.40z)
DMM157: 390 g (13.8 oz)
Measurement Ranges and Accuracies
Accuracies are ± (% reading + number of digits) at 23° C
± 5 C, at less than 75% R.H. (relative humidity).
DC Volts
Ranges
200 mV, 2 V, 20 V, 200 V, 600 V
Accuracy (DMM155)
200 mV range: ± (1.0% reading + 2 digits)
2 V. 20 V, 200 V, 600 V ranges:
± (0.7% reading + 2 digits)
Accuracy (DMM157)
200 mV range: ± (0.8% reading + 2 digits)
2 V, 20 V, 200 V, 600 V ranges:
± (0.5% reading + 2 digits)
Input Impedance
10 MO paralleled by less than 100 pF
Overload Protection 600 VDCNAC
R ms all ranges
Resolution (by range)
200 mV
100 pV
2V
1 mV
20V
10 mV
200V
100 mV
600V
1 V
AC Volts
Ranges
2 V, 20 V, 200 V, 600 V
Accuracy (DMM155) ± (1.7% reading + 4 digits)
50 Hz to 400 Hz
Accuracy (DMM157) ± (1.5% reading + 4 digits)
50 Hz to 400 Hz
Input Impedance
10 MO paralleled by less than
100 pF
Overload Protection 600 VDCNACRms all ranges
Display
Polarity Indication
Overrange Indication
Low Battery Indication
Sampling Rate
Operating Temp.
Storage Temp.
Power Supply
Battery Life
Dimension (HxWxD)
Weight (including
battery & holster)
16
17