| Reference Conditions |
| Ambient temperature |
+23 °C ± 2 K |
| Relative humidity |
40 ... 75% |
| Measured qty. frequency |
45 ... 65 Hz |
| Measured qty. waveshape |
Sine |
| Battery voltage |
3 V ± 0.1 V |
| Data Interface |
| Type |
Optical via infrared light through the housing |
| Data transmission |
Serial, bidirectional (not IrDa compatible) |
| Protocol |
Device specific |
| Baud rate |
38,400 baud |
| Functions |
– Select/query measuring functions and parameters
– Query momentary measurement data
– Read out stored measurement data |
| Internal Measured Value Storage |
| Memory capacity |
4 MBit / 540 kB for approx. 15,400 measured values with date and time stamp |
| Power Supply |
| Battery |
2 ea. 1.5 V mignon cell (2 ea. size AA), alkaline manganese per IEC LR6 (2 ea. 1.2 V NiMH rechargeable battery also possible) |
| Service life |
with alkaline manganese: approx. 200 hours |
| Battery test |
Querying of momentary battery voltage via menu function. |
| Power OFF function |
Multimeter is switched off automatically:
– If battery voltage drops to below prox. 1.8 V
– If none of the keys or the rotary switch are activated for an adjustable duration of 10 to 59 minutes, and the multimeter is not in the continuous operation mode |
| Power pack socket |
If the NA X-TRA power pack has been plugged into the instrument, the batteries are disconnected automatically. Rechargeable batteries can only be recharged externally. |
| Display |
| LCD panel (65 mm x 36 mm) with analog and digital display including unit of measure, type of current and various special functions |
| Analog |
| Display |
LCD scale with bar graph or pointer, depending on the selected parameter setting |
| Scaling |
With 4 division lines each, 1 bar/pointer corresponds to 500 digits at the digital display |
| Polarity display |
With automatic switching |
| Overflow display |
With the ► symbol |
| Measuring rate |
40 measurements per second and display refresh |
| Digital |
| Display / char. height |
7-segment characters / 15 mm |
| Number of places |
4½ place 11,999 steps |
| Overflow display |
“OL” is displayed for ≥ 12,000 digits |
| Polarity display |
“–” (minus sign) is displayed if plus pole is connected to “┴” |
| Measuring rate |
10 and 40 measurements per second with the Min-Max function except for the capacitance, frequency and keying ratio measuring functions |
| Refresh rate |
2 times per sec., every 500 ms |
| Acoustic Signals |
| For voltage |
Intermittent signal at above 1000 V |
| For current |
Intermittent signal at above 10 A continuous signal at above 16 A |
| Fuse |
| Fuse |
FF (UR) 10 A/1000 V AC/DC; 10 mm x 38 mm, Switching capacity: 30 kA at 1000 V AC/DC, protects the current measurement input in the 100 µA through 10 A ranges |
| Electrical Safety |
| Per IEC 61010-1 |
2010/VDE 0411-1:2011: |
| Safety class |
II |
| Measuring category |
III, IV |
| Operating voltage |
1000 V, 600 V |
| Fouling factor |
2 |
| Test voltage |
6.7 kV~ |
| Electromagnetic Compatibility (EMC) |
| Interference emission |
EN 610326-1: 2006, class B |
| Interference immunity |
EN 610326-1: 2006
EN 610326-2-1: 2006 |
| Ambient Conditions |
| Accuracy range |
0 °C ... +40 °C |
| Operating temp. range |
-10 °C ... +50 °C |
| Storage temp. range |
-25 °C ... +70 °C (without batteries) |
| Relative humidity |
Max.75%, no condensation allowed |
| Elevation |
To 2000 m |
| Deployment |
Indoors, except within specified ambient conditions |
| Mechanical Design |
| Housing |
Impact resistant plastic (ABS) |
| Dimensions |
200 x 87 x 45 mm (without protective rubber cover) |
| Weight |
Approx. 0.35 kg with batteries |
| Protection |
Housing: IP 52 (pressure equalization by means of the housing) |