Unitest TELARIS LOOP, Instruction Manual

Page: 16 / 20

15.0 Technical Data
Display: ..................................................LCD, 3 1/2 digit
Reference range: ....................................+17°C ... 27°C, max. 70 % rel. humidity
Mains voltage: ........................................230V + 10%/-15%
Mains frequency: ....................................50-60 Hz
Test current (ZL, RI, RN, RL, RPE): ........approx. 6 A/ 5mA
for all resistance ranges applies:
test current / time (RL, RN, RI): ..............ca. 7,5A / 60ms AC
test current / time (ZL, RPE): ..................ca. 5 mA / 3s DC
Contact voltage limit: ..............................25V/50V
protective earth conductor must be free of interfering voltage.
Loop Impedance ZL
Range Resolution Tolerance
0,05...19.99 Ohm 0.01 Ohm
20...199.9 Ohm 0.1 Ohm ± 5% rdg. ± 5 Digit
200 Ohm...1.999 kOhm 1 Ohm
Internal Resistance RI
Range Resolution Tolerance
0,05...19.99 Ohm 0.01 Ohm ± 5% rdg. ±5 Digit
Resistance Neutral Conductor RN
Range Resolution Tolerance
0.05 Ohm 0.01 Ohm ± 5% rdg. ± 5 Digit
Resistance Protective Conductor RPE
Range Resolution Tolerance
0.05...19.99 Ohm 0.01 Ohm
20...199.9 Ohm 0.1 Ohm ± 5% rdg. ± 5 Digit
200 Ohm...1.999 kOhm 1 Ohm
Resistance Phase Conductor RL
Range Resolution Tolerance
0.05...19.99 Ohm 0.01 Ohm ± 5% rdg. ±5 Digit
Prospective Short-Circuit Current Measurement (ZL/IPSC and RI/IPSC)
Range
Resolution
0...2kA1 Amathematical
19.9kA10 Acalculation
16
Technical Data
I
PSC
= VAC
,
Ik =
VAC
ZL RI