REED ST-5500 Instruction Manual Download Page 8

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The above note also applies to testing at 1000V. In addition the following 
applies.

Note: 

Make sure that the circuit under does not include components 

Which will be damaged by the 1000V applied. Many normal components 
of an installation are likely to be damaged if tested at 1000V. Examples are 
power factor correction capacitors, low voltage mineral insulated cables, 
electronic light dimmers, electronic ballasts and starters for fluorescent 
lamps etc…

Lock Power on Feature 

For hands free operation a lock power on feature is incorporated in the 
press to test button. Set the LOCK button to lock test voltage, pressing it 
again will turn the tester off.

Low Resistance (Continuity) Measurements

1. Set the range switch to 200Ω •))) Position
2. Connect the red test lead to the V Ω terminal and back to the 

.

COM terminal.

3. Connect the tips of the test leads to both ends of the circuit under test. 

Read resistance in Ω on the LCD.

4. When the impedance on circuit is below approximately 40Ω.

.

It will indicate by a continuous beeper.

AC/DC Voltage Measurements

1. Set the range switch to ACV or DCV position
2. Connect red test lead to “V Ω” terminal and black test lead 

.

to terminal “COM”.

3. Connect test prods of test leads IN PARALLEL to the circuit 

.

being measured.

4. Read the voltage value on LCD.

 

REED Instruments

1-877-849-2127 | [email protected] | www.reedinstruments.com

Summary of Contents for ST-5500

Page 1: ...reedinstruments www com Model ST 5500 Digital Insulation Tester Instruction Manual REED Instruments 1 877 849 2127 info reedinstruments com www reedinstruments com...

Page 2: ...k the test leads 7 Battery replacement 7 Measurements 7 8 Insulation Resistance Measurements 7 Low Resistance Measurements 8 AC DC Voltage Measurements 8 Power Tool Small Appliances 9 Motors 9 Cables...

Page 3: ...may be impaired Read the operating instructions before use and follow all safety Information Caution when working with voltages above 60V DC or 30V AC RMS Such voltages pose a shock hazard Before tak...

Page 4: ...k 200M 250V 200M 500V 2000M 1000V 750V ACV 1000V DCV Sampling Rate 2 5 times per second Zero Adjustment Automatic adjustment Over Range Indicator Number 1 of highest digit is displayed Low Battery Ind...

Page 5: ...urrent 200mA DC Voltage Range Resolution Accuracy Input Impedance Overload Protection 1000V 1V 0 8 3 10M 1000Vrms AC Voltage 40Hz 400Hz Range Resolution Accuracy Input Impedance Overload Protection 75...

Page 6: ...lack lead into the COM terminal 2 On 200 and ACV Range Connect the red test lead into the V terminal and the black lead into terminal COM How to check the test leads Set the range select switch to the...

Page 7: ...t have at least fifty outlets an outlet being a switch socket lighting point etc A switched socket counts as one outlet The minimum accept able insulation resistance is 1M For a large installation the...

Page 8: ...ton Set the LOCK button to lock test voltage pressing it again will turn the tester off Low Resistance Continuity Measurements 1 Set the range switch to 200 Position 2 Connect the red test lead to the...

Page 9: ...the motor wire and all other components be tween the motor and the main switch If a weakness is in dicated the mo tor and other components should be checked individually If the motor is disconnected...

Page 10: ...ecting one megohmmeter lead to a ground and or lead sheather and the other megohmmeter lead to each of the conductors in turn Check insulation resistance between conductors by connecting megohmmeter l...

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