Mini SWER & Pole Voltage Tester

$240.00

AUD

Universal pocket-sized voltage tester designed for testing power poles of all heights or situations that require a manual variation in voltage distance detection.

The Modiewark GLM Mini SWER (Single Wire Earth Return) and Pole Tester is a universal pocket size proximity voltage tester, which has been designed for the testing of power poles of all heights or situations that require a manual variation in voltage distance detection. This unit is designed for qualified personnel.

With this unique ability, the testing of pole leakages is a quick and easy task. This allows identification of cracked and broken insulators, which can be replaced and save the loss of energy.

Note

The GLM Mini SWER & POLE tester is not designed to function where mains cable is armored or enclosed in metal conduit or any situation where the AC field is negated by metal shielding.

The GLM MIni SWER & Pole Tester features a full function internal self testing unit, low battery indicator detection and unit activation indication, providing a safe and reliable instrument.

Battery Placement

The battery compartment is located on the rear of the GLM MINI and requires a 9 volt pp3 battery. There is an option of a rechargeable battery for some models.

Ensure the battery is fitted the correct way placing the positive terminal as indicated.

swer-power-light

Indicator Lights

Power On Indicator (Green)

Low Battery Indicator  (Orange)

When the unit is turned on a GREEN LED is illuminated. This indicates good battery condition and circuitry connectivity. As the battery decreases below this point the unit will switch the tester to a continuous Orange LED.

Push to Test Button

The self test button located on the front face of the GLM MINI is a full function test of all the components of the unit.

Testing:

  • Audio indicator
  • Visual indicator
  • Battery condition
  • Transistor circuit verification

This feature should be initiated every time the unit is turned on and at regular intervals during the working day. In the event the tester fails please refer to (Service and Trouble Shooting).

High / Low Voltage Sensitivity Switch

This switch is used to enable the GLM Mini to be operated through the 12 point switch for the calibration of distance in high and low electrical fields.

e.g. If the mains are 11kV/22kV/33kV the high setting is required because the field is not as strong. If the over head mains are from 66kV-132kV the low setting is required.

Sensitivity Dial

The dial allows for the adjustment of the unit to the work site signal strength given network voltage and distance (height of conductor), use this dial to adjust the sensitivity for the site conditions.

swer_switch_hiLo

Parts Identification

swer_partid

Mini SWER & Pole Tester – Voltage Leakage Testing

High Voltage Leakage Testing

When carrying out Insulation testing on main lines, the Mini SWER & Pole Tester High Voltage Leakage Operation procedure is recommended, for all mains power poles and voltage types.

markup1web
markout1web

1. Switch the unit to the “ON” position, a Green LED power light will immediately illuminate, indicating good battery condition and circuitry connectivity.

2. For power pole testing place the Sensitivity Switch to HIGH (to the RIGHT) and the Sensitivity Dial to the far RIGHT to position 12. This setting will also allow testing with the Modielive low frequency testing unit which is supplied separately. If applicable.

3. Confirm the low battery LED is still GREEN and continue to step 4. If the orange LED illuminates, replace battery before use or recharge NIMH battery with approved charger and repeat steps 1 – 3.

4. Press the Self Test button to check the unit is operating correctly. A repeating tone will be heard indicating a correct operation. A two second delay will occur between the self test operation and the normal unit detection operation. The GLM Mini is ready for operation.

5. It is recommended that regular checks using the self test function be made before and during the safe approach of electrical voltage testing.

6. Always hold the GLM MINI with your thumb placed on the indicated position with your arm outstretched. This allows maximum effectiveness and detection.

7. For the initial calibration procedure on a SWER system it is recommended that the minimum distance from the pole under test be 10 metres and stand directly below the conductor.

8. If trees are in close proximity or low voltage wires are below the SWER conductor, stand at right angles (still 10m from the pole) to the line and pole to enable the detection of high voltage.

Note: Electric fields from power lines can be disturbed and redirected by objects that are grounded. A tree near a power line will lower the strength of an electric field which may cause adjustments to the settings on the GLM Mini. Other factors which influence the electric field and the initial calibration setup include rainy and humid conditions. More information on hazards.

9. After correct test instrument procedure has been carried out, raise the tester above the head and adjust the sensitivity dial until the voltage in the line above is detected

Method: Placing your right hand on the tester as indicated use the other hand to move the Sensitivity Dial slowly to the left until the alarm is a strong and continuous sound.

10. If Tester does not alarm If over head mains cannot be detected by the GLM Mini at arm’s length at HIGH 12. It is our recommendation that with the self test function showing correct battery voltage and circuit operation, the self test function can then be used as a dependable correct safety procedure to approach the pole.

Note: If the sensitivity switch and dial are adjusted correctly to pick up the live conductors. A strong field would produce a switch setting of low sensitivity position and the sensitivity dial would be in a position suited, to the on site conditions. A low field would produce a switch setting of high sensitivity position and sensitivity dial would be in a position suited, to the on site conditions.

11. When the over head line conductor is located (by the activation of the alarm), lower the tester to chest height, at this point no alarm should be heard. The overhead field will be broken and the approach to the pole can be made. If the tester continues to alarm at chest height raise it above the head again and adjust the sensitivity dial one position to the left to desensitise it, then repeat step 11.

Method: By leaving the hand placed on the tester with the thumb as indicated, remove the other hand and lower the unit to chest height.

Note: When using the unit on power lines where lower voltage mains, i.e. 415V AC are beneath the HV conductors a null or dead zone will occur. To overcome this situation move out from beneath the HV line until the alert tone is heard.

12. Verify the calibration of the over head mains again to check voltage is still present and lower to chest height where the alert tone should dissipate. The tester should not alarm in this position or pole test will not be correct.

13. With the tester at arm’s length approach the pole to be tested.

Method: Whilst approaching the pole keep arm out stretched and your other arm beside your body; walk calmly and slowly towards the pole, to a point where the Test Area label is 25mm (1 inch) from pole. If the Tester alarms while approaching the pole, stop and raise the GLM mini towards the overhead conductors to make sure the GLM Mini is not picking up overhead field, if field is still broken above (no alert tone) proceed to step 15.

14. If the tester does not alarm there is no significant voltage running through the pole.

Method: At this point to verify results touch the pole with unit on the end marked Test Area only. The contact will increase sensitivity.

15. If an alert signal is heard do not panic but check your results proceed to step

Method: To check your results take a step back until signal has discontinued then take a step forward to verify activation of unit. Please note the further you are away from the pole and the tester is alarming, the higher the leakage in that pole. A set of calibration tables are available for switch positions and voltages if required.

16. Follow standard isolation procedures with a ten metre perimeter, assess the area around pole to ensure no conductive material have contacted pole. i.e. Fences, machinery and water, as where you are standing may be active.

Note: If a voltage cannot be detected by the GLM Mini at arm’s length at HIGH 12, then three possible situations can exist:

  • The over head mains are not alive.
  • The over head mains voltage does not have a strong enough field to be picked up.
  • Low voltage mains are below the High voltage conductors causing a null.

In these circumstances it is our recommendation that the because the self test function checks battery and circuitry it can be relied upon (after the self test procedures have been carried out) that safe pole approach can be carried out.

Low Voltage Leakage Testing

When carrying out Insulation testing on main lines, the Mini SWER & Pole Tester High Voltage Leakage Operation procedure is recommended, for all mains power poles and voltage types. 

markup1web
markout1web

1. Switch the unit to the “ON” position, a green LED power light will immediately illuminate, indicating good battery condition and circuitry connectivity.

2. For low voltage pole testing place the Sensitivity Switch to HIGH (to the RIGHT) and the Sensitivity Dial to the far RIGHT to position 12. This setting will allow testing with the Modielive mark 3 testing unit which is supplied separately. If applicable.

3. Confirm the low battery LED is still (green) and continue to step 4. If the (orange) LED illuminates, replace battery before use or recharge NIMH battery with approved charger and repeat steps 1 – 3.

4. Press the Self Test button to check the unit is operating correctly. A repeating tone will be heard indicating a correct operation. A two second delay will occur between the Self Test operation and the normal unit detection operation. The GLM Mini is ready for operation.

5. It is recommended that regular checks using the self test function be made before and during the safe approach of electrical voltage testing.

6. Always hold the GLM mini with your thumb placed on the indicated position, with your arm outstretched. This allows maximum effectiveness and detection.

7. For the initial calibration procedure on a low voltage mains pole keep the pole to be tested at a minimum distance of three metres (3m) at the initial setup.

8. Place yourself directly under the low voltage line away from hazards such as trees, other electric fields keeping a distance of 3m from the pole under test.

Note: Electric fields from power lines can be disturbed and redirected by objects that are grounded. A tree near a power line will lower the strength of an electric field which may cause adjustments to the settings on the GLM Mini. Other factors which influence the electric field and the initial calibration setup include rainy and humid conditions. More information on hazards.

9. After correct test instrument procedure has been carried out, raise the tester above the head and adjust the sensitivity dial until the voltage in the line above is detected.

Method: Placing your right hand on the Tester as indicated use the other hand to move the Sensitivity Dial slowly to the left until the alarm is a strong and continuous sound.

10. If Tester does not alarm If over head mains cannot be detected by the GLM Mini at arm’s length, at HIGH 12. It is our recommendation that with the self test function showing correct battery voltage and circuit operation, the self test function can then be used as a dependable correct safety procedure to approach the pole.

Note: If the sensitivity switch and the sensitivity dial are adjusted correctly to pick up the live conductors.

  • A strong field would produce a switch setting of low sensitivity position and the sensitivity dial would be in a position suited, to the on site conditions.
  • A low field would produce a switch setting of high sensitivity position and the sensitivity dial would be in a position suited, to the on site conditions.

11. When the over head line conductor is located (by the activation of the alarm), lower the tester to chest height, at this point no alarm should be heard. The overhead field will be broken and the approach to the pole can be made. If the Tester continues to alarm at chest height raise it above the head again and adjust the sensitivity dial one position to the left to desensitise it, then repeat step

Method: By leaving the hand placed on the Tester with the thumb as indicated, remove the other hand and lower the unit to chest height.

12. Verify the calibration of the over head mains again to check voltage is still present and lower to chest height where the alert tone should dissipate. The tester should not alarm in this position or pole test will not be correct.

13. With the tester at arm’s length approach the pole to be tested.

Method: Whilst approaching the pole keep arm out stretched and your other arm beside your body; walk calmly and slowly towards the pole, to a point where the Test Area label is 25mm (1 inch) from pole. If the tester alarms while approaching the pole, stop and raise the GLM mini towards the overhead conductors to make sure the GLM mini is not picking up overhead field, if field is still broken above (no alert tone) proceed to step 

14. If the tester does not alarm there is no significant voltage running through the pole.

Method: At this point to verify results touch the pole with unit on the end marked Test Area only. The contact will increase sensitivity.

15. If an Alert signal is heard do not panic but check your results proceed to step

Method: To check your results take a step back until signal has discontinued then take a step forward to verify activation of unit. Please note the further you are away from the pole and the tester is alarming the higher the leakage in that pole. A set of calibration tables are available for switch positions and voltages if required.

16. Follow standard isolation procedures with a ten metre perimeter, assess the area around pole to ensure no conductive material have contacted pole. e.g. fences machinery and water, as where you are standing may be active.

Note: If a voltage cannot be detected by the GLM Mini at arm’s length at HIGH 12 then three possible situations can exist:

  • The over head mains are not alive.
  • The over head mains voltage does not have a strong enough field to be picked up.
  • Low voltage mains are below the High voltage conductors.

In these circumstances it is our recommendation that because the self test function checks battery and circuitry it can be relied upon (after the self test procedures have been carried out) that safe pole approach can be carried out. When carrying out Insulation testing on main lines, The Mini SWER & Pole Tester Low Voltage Leakage Operation procedure is recommended, for all mains power poles and voltage types.

IF A VOLTAGE IS DETECTED, THERE IS NO NEED TO BRING THE DETECTOR ANY CLOSER TO THE VOLTAGE

Meter Box Testing

The GLM Mini can be used to check the safety of meter or junction boxes in the same way a pole test is conducted. In the situations where overhead SWER, transformers and meter boxes appear on the same pole.

markup1web

It is possible that larger leakage voltages can be present in overhead SWER situations caused by varying earth conditions and earth connections. 

1. Switch the unit to the “ON” position, a Green LED power light will immediately illuminate, indicating good battery condition and circuitry connectivity.

2. For power pole meter box testing place the Sensitivity Switch to HIGH (to the RIGHT) and the Sensitivity Dial to the far RIGHT to position 12. This setting will allow testing with the Modielive testing unit which is supplied separately. If applicable.

3. Confirm the low battery LED is still (green) and continue to step 4. If the (orange) LED illuminates, replace battery before use or recharge NIMH battery with approved charger and repeat steps 1 – 3.

4. Press the self test button to check the unit is operating correctly. A repeating tone will be heard indicating a correct operation. A two second delay will occur between the self test operation and the normal unit detection operation. The GLM Mini is ready for operation.

5. It is recommended that regular checks using the self test function be made before and during the safe approach of electrical voltage testing.

6. Always hold the GLM MINI with your thumb placed on the indicated position with your arm outstretched. This allows maximum effectiveness and detection.

7. For the initial calibration procedure on a SWER system it is recommended that the minimum distance from the pole under test be 10 metres and stand directly below the conductor.

8. If trees are in close proximity or low voltage wires are below the SWER conductor, stand at right angles (still 10m from the pole) to the line and pole to enable the detection of high voltage.

Note: Electric fields from power lines can be disturbed and redirected by objects that are grounded. A tree near a power line will lower the strength of an electric field which may cause adjustments to the settings on the GLM Mini. Other factors which influence the electric field and the initial calibration setup include rainy and humid conditions. More information on hazards.

9. After correct test instrument procedure has been carried out, raise the tester above the head and adjust the sensitivity dial until the voltage in the line above is detected

Method: Placing your right hand on the tester as indicated use the other hand to move the Sensitivity Dial slowly to the left until the alarm is a strong and continuous sound.

10. If Tester does not alarm. If over head mains cannot be detected by the GLM Mini at arm’s length at HIGH 12. It is our recommendation that with the self test function showing correct battery voltage and circuit operation, the self test function can then be used as a dependable correct safety procedure to approach the pole.

Note: If the sensitivity switch and the sensitivity dial are adjusted correctly to pick up the live conductors.

  • A strong field would produce a sensitivity switch setting of low sensitivity position and the sensitivity dial would be in a position suited, to the on site conditions.
  • A low field would produce a sensitivity switch setting of high sensitivity position and the sensitivity dial would be in a position suited, to the on site conditions.

11. When the over head line conductor is located (by the activation of the alarm), lower the tester to chest height, at this point no alarm should be heard. The overhead field will be broken and the approach to the pole can be made. If the tester continues to alarm at chest height raise it above the head again and adjust the sensitivity dial one position to the left to desensitize it, then repeat step 11.

Method: By leaving the hand placed on the tester with the thumb as indicated, remove the other hand and lower the unit to chest height.

Note: When using the unit on power lines where lower voltage mains, i.e. 415V AC are beneath the HV conductors a null or dead zone will occur. To overcome this situation move out from beneath the HV line until the alert tone is heard.

12. Verify the calibration of the over head mains again to check voltage is still present and lower to chest height where the alert tone should dissipate. The tester should not alarm in this position or pole test will not be correct.

13. With the tester at arm’s length approach the meter box enclosure to be tested.

Method: Whilst approaching the meter box enclosure keep arm out stretched and your other arm beside your body; walk calmly and slowly towards the pole, to a point where the test area label is 25mm (1 inch) from pole. If the tester alarms while approaching the pole, stop and raise the GLM Mini towards the overhead conductors to make sure the GLM Mini is not picking up overhead field, if field is still broken above (no alert tone) proceed to step 15.

14. If the tester does not alarm there is no significant voltage running through the Pole or meter box enclosure.

Method: At this point to verify results touch the meter box enclosure with unit on the end marked Test Area only. The contact will increase sensitivity. Activation of the unit should not take place until the unit is within close proximity to the box or not at all if the enclosure is properly grounded.

15. If an Alert signal is heard do not panic but check your results proceed to step

Method: To check your results take a step back until signal has discontinued then take a step forward to verify activation of unit. Please note the further you are away from the meter box enclosure the higher the leakage in that pole. A set of calibration tables are available for switch positions and voltages if required.

16. Follow standard isolation procedures with a ten metre perimeter, assess the area around pole to ensure no conductive materials have contacted pole. e.g. Fences machinery and water as where you are standing may be active.

Note: If a voltage cannot be detected by the GLM Mini at arm’s length at HIGH 12 then three possible situations can exist:

  • The over head mains are not alive.
  • The over head mains voltage does not have a strong enough field to be picked up.
  • Low voltage mains are below the high voltage conductors.

In these circumstances it is our recommendation that because the Self Test function checks battery and circuitry it can be relied upon (after the self test procedures have been carried out) that safe pole approach can be carried out.

The GLM Mini tester where mains are armored or in metal conduit,may not be detected.

The tester is designed to operate as a proximity device and relies on an AC field to operate.

Mini SWER & Pole Tester Specifications

Voltage sensing range 20V AC to 500kV AC
(Handheld) 20V 10mm
(Handheld) 500kV 50m
Light source High Intensity LED
Sound source Electromagnetic piezo
85 dB @ 10cm (3.937″)
Operating temperature -10 to 65C (14 to 149F)
IP rating IP 40
Weight (no batteries) 120g (4.2 oz)
Dimensions Length: 125.47mm (4.94″)
Width: 65.85mm (2.75″)
Height: 23.98 (0.944″)
Battery 9 volt PP3 Alkaline
Rechargeable battery 9 volt PP3 NIMH 200mA (use only NIMH)
Battery life (200mA NIMH battery) ON (no alarm) 30+ Hours
ON (alarm on) 10+ Hours
Battery life (500mA Alkaline) ON (no alarm) 40+ Hours
ON (alarm on) 15+Hours

Voltage vs. Distance SWER and Pole Test Results

When live mains are knocked down by storm condition or accidents, the Pole tester with its directional characteristics can be very useful in preventing injury to electrical line personnel or rescue staff. As the tester is directional it will alarm when approaching live mains that are hanging or lying on the ground. The unit can be tuned to ignore the electric field from above and only detect in the direction the user is pointing at chest height or lower. This prevents the user walking on or into fallen cables.

In the situation below one of the three phases is down leaving two phases in the air and one on the ground. This situation may occur at night in low light conditions, in snow falls and drifts, concealing the live elements. Follow the procedure below

Voltage Detection Switch Low

Switch Setting20V150V550V1000V
Low 1    
Low 2  0 
Low 3  20mm 
Low 4  40mm 
Low 5  65mm 
Low 6  100mm300mm
Low 7 40mm260mm 
Low 8  410mm 
Low 9 180mm475mm 
Low 10  525mm 
Low 11  525mm 
Low 12 180mm575mm775mm

Voltage Detection Switch High

Switch Setting20V150V550V1000V
High 1 150mm450mm775mm
High 2 150mm550mm 
High 3  550mm 
High 4  600mm 
High 5  600mm 
High 6 200mm625mm900mm
High 7 710mm  
High 8  750mm 
High 95mm 770mm 
High 1010mm 775mm 
High 1110mm 825mm 
High 1210mm310mm750mm1100mm

Mini SWER & Pole Tester Hazards & Risks

When carrying out Insulation testing on main lines, the Mini SWER & Pole Tester High Voltage Leakage Operation procedure is recommended, for all mains power poles and voltage types.

When using the unit on power lines where lower voltages e.g. 415 volts lines are below higher voltage power lines, an affect will occur where a null or dead zone may appear.

Solution: To overcome this move out from under the line parallel or adjacent until a signal is heard and repeat procedures 1 to 16.

Electric fields from power lines can be disturbed and redirected by objects that are grounded. A tree near a power line will lower the strength of an electric field which causes you to change the setting on your tester. Other influences such as weather, water (humidity) will change the electric field strength.

Pole mounted transformers cause null effects when stepping down voltage shown here 11kV to 415 volts the surface area is greater therefore a stronger signal is generated.

Solution: By moving around the pole at a distance of 10 metres a clear and free signal can be gained. 

The Modiewark tester is not designed to operate where mains cable are armoured, enclosed in metal conduit, underground or any situation where the AC field is negated by metal shielding.

The unit will not detect DC voltages and must be used by trained personnel around train tracks and railway control boxes and signals.

Mini SWER/Pole Tester Storm Damage and Hazard Approach

When live mains are knocked down by storm condition or accidents, the Pole tester with its directional characteristics can be very useful in preventing injury to electrical line personnel or rescue staff. As the tester is directional it will alarm when approaching live mains that are hanging or lying on the ground. The unit can be tuned to ignore the electric field from above and only detect in the direction the user is pointing at chest height or lower. This prevents the user walking on or into fallen cables.

In the situation below one of the three phases is down leaving two phases in the air and one on the ground. This situation may occur at night in low light conditions, in snow falls and drifts, concealing the live elements. Follow the procedure below:

1. For storm damage and hazard approach switch the unit to the “ON” position, a green LED power light will immediately illuminate, indicating good battery condition and circuitry connectivity.

2. For safety location testing place the Sensitivity switch to HIGH (to the RIGHT) and the Sensitivity Rotary Dial to the far RIGHT to position 12.

3. Confirm the low battery LED is still green and continue to step 4. If the (orange) LED illuminates, replace battery before use or recharge NIMH battery with approved charger and repeat steps 1 – 3.

4. Press the Self Test button to check the unit is operating correctly. A repeating tone will be heard indicating a correct operation. A two second delay will occur between the self test operation and the normal unit detection operation. The tester is ready for operation.

5. It is recommended that regular checks using the self test function be made before and during the safe approach of electrical voltage testing.

6. Always hold the tester with your thumb placed on the indicated position with your arm outstretched. This allows maximum effectiveness and detection.

7. After correct test instrument procedure has been carried out, raise the tester above the head and adjust the sensitivity dial until the voltage in the line above is detected.

Method: Placing your right hand on the tester as indicated use the other hand to move the Sensitivity Rotary Dial slowly to the left until the alarm is a strong and continuous sound.

8. If tester does not alarm, If over head mains cannot be detected by the tester at arm’s length at HIGH 12. It is our recommendation that with the self test function showing correct battery voltage and circuit operation, the self test function can then be used as a dependable correct safety procedure to approach the pole.

9. When the over head line conductor is located (by the activation of the alarm), lower the tester to chest height. If the tester is still alarming then turn the rotary switch back until the field is broken.

Method: By leaving the hand placed on the tester with the thumb as indicated, remove the other hand and lower the unit to chest height.

10. Verify the calibration of the over head mains again to check voltage is still present and lower to chest height where the alert tone should dissipate

11. With the tester at arm’s length approach the hazard to be tested.

Method: Whilst approaching the hazard keep arm out stretched and your other arm beside your body; walk calmly and slowly towards the test area, Moving the unit from knee height to chest height. If the Tester alarms while approaching the area under test, stop and raise the tester towards the overhead conductors to make sure the tester is not picking up overhead field, if field is still broken above (no alert tone) proceed to step

12. If the tester does not alarm there is no significant voltage in that area.

13. If an alert signal is heard do not panic but check your results proceed to step 14.

Method: To check your results take a step back until signal has discontinued then take a step forward to verify activation of unit. Please note the further you are away from the area under test and the tester is alarming, the higher the leakage in that pole. A set of calibration tables are available for switch positions and voltages if required.

14. Follow standard isolation procedures with a ten metre perimeter, assess the area around the pole and conductor and ensure no conductive material has contacted pole. i.e. Fences machinery and water, as where you are standing may be active.