XS series operating manual 
 
XS user manual v0.55  - 55 - 
 
Fig 7.9 
Press on the  [DISCHARGE] red push button to cancel the memorization on the LCD screen. (The HV 
indicator goes out.) 
Display shows figure 11 
Press on the [ESC] key to escape the function  
 
Error messages 
 
The following error messages may appear during the measurement: 
 
(message) SAFETY LOOP 
 
the safety  loop is  not  closed.  There is  no connection  between the  points 1-9 and  2-10  of  the C5 
connector of the rear panel. Make the connection, press again on the [MEASUREMENT] green push 
button to trigger the measurement mode. 
 
 (message) OVER-RANGE 
 
the insulation resistance of the specimen under test exceeds the measurement specifications of the 
unit (refer to specification section of this manual). 
 
(message) UNDER-RANGE 
 
the insulation resistance of the specimen under test is lower than the measurement specifications of 
the unit (refer to specification section of this manual). 
 
(message) CHARGING 
 
the measurement voltage has not reached its final value. On capacitive specimen, wait for the end of 
the charge, on resistive specimen check with the current specifications of the power supply. 
 
(message) BOARD NOT READY 
 
the  microprocessor  board  cannot  communicate  with  the  insulation  resistance  board.  You  cannot 
perform a measurement, get in contact with our Service department (+33 1 64 11 83 48)