| General |
| Display |
1999 digit LC-display with special symbols, digit height 25 mm, fluorescent backlight |
| User interface |
Instant measurement through TURN and START - one button concept . The only operating elements are rotary switch and START button. |
| Temperature ranges |
| Working temp. |
-10° C ... +50° C ( +14° F ...+122° F ) |
| Operating temp. |
0° C ... +35° C ( +32° F ... +95° F ) |
| Storage temp. |
-20° C ... +60° C ( -4° F ...+140° F ) |
| Reference temp. |
+23° C ±. 2° C ( +73° F ± 4° F ) |
| Temp. coefficient |
± 0,1 % of reading / K |
| Intrinsic error |
Refers to the reference temperature range and is guaranteed for 3 years. |
| Operating error |
Refers to the operating temperature range and is guaranteed for 3 years. |
| Climatic class |
C1 (IEC 654-1), -5° C...+45°C, 5%...95% RH |
| Protective type |
IP56 according to EN 60529 |
| Safety |
Protection by double and/or reinforced insulation. max 50V to earth |
| EMC (Emission) |
IEC 61326-1:1997 Class B CISPR16 (CISPR22), CISPR16-1 |
| EMC (Immunity) |
IEC61326-1:1997
IEC 61000-4-2 8 kV (air) perf. criteria B, IEC 61000-4-3 3 V/m perf. criteria A, IEC 61000-4-4 0,5 kV perf. criteria B
IEC 61000-4-5 1 kV perf. criteria B
IEC 61000-4-6 3 V perf. criteria A |
| IEC 61000-4-8 Level 4, 30A/m perf. criteria A |
| Quality system |
developed, designed and manufactured according to DIN ISO 9001 |
| External voltage |
Max. Uext = 24 V (AC + DC), measurement inhibited for higher values |
| Uext rejection |
>120dB (162/3, 50, 60, 400Hz) |
| Measuring time |
typical 6 sec |
| Max. overload |
250 Vrms |
| Auxiliary power |
6 x 1,5 V mignon cells alkali-manganese (type AA LR6) |
| Battery life span |
typical > 3000 measurements |
| Dimensions |
240 x 180 x 110 mm |
| Weight |
1,1 kg (including batteries) |
| RA 3-pole ground resistance measurement (IEC 1557-5) |
| Measuring principle |
Current/voltage |
| Measuring voltage |
Um = 48 Vac. |
| Short-circuit current |
> 50 mA |
| Meas. frequency |
128 Hz (125 Hz on request) |
| Probe resistance (Rs) |
max. 100 kΩ
Auxiliary earth electrode resistance (Rh) max. 100 kΩ |
| RA 4-pole ground resistance measurement (IEC 1557-5) |
| Measuring principle |
Current/voltage |
| Measuring voltage |
Um = 48 Vac. |
| Short-circuit current |
>> 50 mA |
| Measuring frequency |
128 Hz (125 Hz on request) |
| Probe resistance (Rs+ Res) |
max. 100 kΩ
Auxiliary earth electrode resistance (Rh): max. 100 kΩ |
| 3-pole selective ground resistance measurement |
| Measuring principle |
Current/voltage (with external current transformer) |
| Measuring voltage |
Um = 48 VAC. |
| Short-circuit current |
> 50 mA |
| Measuring frequency |
128 Hz (125 Hz on request) |
| Probe resistance (Rs) |
max. 100 kΩ
Auxiliary earth electrode resistance (Rh): max. 100 kΩ |
| 4- pole selective ground resistance measurement |
| Measuring principle |
Current/voltage (with external current transformer) |
| Measuring voltage |
Um = 48 VAC. |
| Short-circuit current |
> 50 mA |
| Measuring frequency |
128 Hz (125 Hz on request) |
| Probe resistance (Rs) |
max. 100 kΩ
Auxiliary earth electrode resistance (Rh): max. 100 kΩ |
| Stakeless ground loop measurement |
| Measuring principle |
Stakeless measurement of resistance in closed loops using two current transformers |
| Measuring voltage |
Um = 48 VAC (primary) |
| Measuring frequency |
128 Hz (125 Hz on request) |
| Noise current (Iext) |
max. Iext = 10 A AC (Ra <20 Ω) max. Iext = 2 A AC (Ra >20 Ω) |
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