I I I I I Operating current: > 200 mA from 0.01 to 20.00 Ω and > 140 mA from 20.01 to 39.99 Ω
I I I I I Accuracy : ±3% R ±4 cts
I I I I I Max inductive load : 5 hrs without damage to the instrument
I I I I I Max serial mode voltage: 3 V
7.2.4
Resistance
I I I I I Method : Voltage-current measurement
I I I I I Open-circuit voltage: max. 12.4 V
I I I I I Short-circuit current : < 6 mA DC
I I I I I Max. voltage surge: 1200 V AC and DC for 10 seconds between the "+" and "-" terminals
660 V AC and DC between the "G" and "-" or "G" and "+" terminals
I I I I I Max serial mode voltage: 3 V
0.01..39.99 Ω
Range
0.01 Ω
Resolution
Accuracy
7.3
Power supply
I I I I I The device supply is via:
- 8 x 1.5 V batteries, LR 14 (C.A 6541)
- Rechargeables battery NiMh (C.A 6543)
Recharge: 85 to 256 V / 50-60 Hz (electrical safety: 256 V Cat. III)
Instrument
Measurement
Insulation measurement:
Continuity measurement:
with pause of 20 s at nominal load * (1)
*
Normal load : 1000 V/1 mA
(1) If we assume that a 10 minute long PI measurement is made 5 times a day, the operating radius will be 67 days (or
10 weeks or 2.5 months)
(2) If we assume that a 10 minute long PI measurement is made 5 times a day, the operating radius will be 16 days (or
2.5 weeks or 0.5 months)
I I I I I Recharging time (C.A 6543)
4.5 hours to reach 100% of its capacity (Max. recharge time: 6 hours)
0.5 hours to reach 10% of its capacity (gives operating radius: 1 day approx.)
7.4
Environmental conditions
I I I I I Operating range
-10 to 40°C, during recharging of batteries
-10 to 55°C, during measurement
20 to 80 % RH
I I I I I Nominal temp. range
0 to 35°C
I I I I I Storage :
-40 to 70°C
10 to 90 % RH
/
; measurement is prohibited above this value
AC
DC
(< 15 V with external supply)
DC
or 3 V
; measurement is prohibited above this value
AC
DC
40.0..399.9 Ω
0.400..3.999 kΩ
0.1 Ω
±3 % R ±3 cts
C.A 6541
Average operating radius
21, 000 x 5 s measurements
with 20 s pause, for normal load* (1)
16 000 measurements lasting 5 s
58
4.00..39.99 kΩ
1 Ω
10 Ω
C.A 6543
Average operating radius
5, 000 x 5 s measurements
with 29 s pause, for normal load * (2)
4 000 measurements lasting 5 s
with pause of 20 s at nominal load * (2)
40.0..399.9 kΩ
100 Ω