MARTINDALE ET4500 - Continuity Measurement Specifications; R LOW, R2, R1+R2 Resistance Specs; Resistance CONTINUITY Specifications; RING Continuity Specifications

Martindale ET4000 / ET4500 Technical specifications
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9.2 Continuity
9.2.1 Resistance R LOW, R2, R1+R2
Measuring range to BS EN 61557-4 is 0.16  - 1999 .
Measuring range R () Resolution ()
Accuracy
0.00 - 19.99 0.01
(3 % of reading + 3 digits)
20.0 - 199.9 0.1
(5 % of reading)
200 - 1999 1
Measuring range R+, R-
()
Resolution ()
Accuracy
0.0 - 199.9 0.1
(5 % of reading + 5 digits)
200 - 1999 1
Open-circuit voltage ........................... 6.5 VDC - 18 VDC
Measuring current .............................. min. 200 mA into load resistance of 2 
Test lead compensation ..................... up to 5 
Number of possible tests ................... > 2000, with a fully charged battery
Automatic polarity reversal of the test voltage.
9.2.2 Resistance CONTINUITY
Measuring range () Resolution ()
Accuracy
0.0 - 19.9 0.1
(5 % of reading + 3 digits)
20 - 1999 1
Open-circuit voltage ........................... 6.5 VDC - 18 VDC
Short-circuit current ........................... max. 8.5 mA
Test lead compensation ..................... up to 5 
9.2.3 RING Continuity
Measuring range to BS EN 61557-4 is 0.16  - 1999 .
Measuring range R () Resolution ()
Accuracy
0.00 - 19.99 0.01
(3 % of reading + 3 digits)
20.0 - 199.9 0.1
(5 % of reading)
200 - 1999 1
Open-circuit voltage..........................6.5 VDC - 18 VDC
Measuring current.............................min. 200 mA into load resistance of 2 
Test lead compensation....................up to 5 
Number of possible tests ...........> 2000, with a fully charged battery