JT920/JT920L - MAINTENANCE
143
USE ELECTRIC STRIKE SIMULATOR
JT920/JT920L - MAINTENANCE
143
USE ELECTRIC STRIKE SIMULATOR
USE ELECTRIC STRIKE SIMULATOR
The Electric Strike Simulator (p/n 259-506) can be used to test
voltage and current sensors on strike indicator. If readings are
less than indicated here, replace 9 volt battery in simulator and
retest.
Current Test
To test for current at normal levels:
1.
Thread one lead wire through current transformer.
2.
Clip ends of lead wires together to make one loop.
3.
Move simulator switch to "current" and press test button.
4.
Watch screen and lights above display on strike system.
•
Three or four lights should turn on.
•
Current "A" should show 30-50% in display.
To test for current at strike levels:
1.
Put two or three loops through current transformer.
2.
Follow steps above to test.
3.
Display should show the following:
•
All lights should turn on.
•
Alarm and strobe should turn on.
With two loops,
•
Current "A" should be 80-110%.
•
Strike indication might go on and off.
With three loops,
•
Current should be 130-160%.
•
Strike indication should be continuous.
USE ELECTRIC STRIKE SIMULATOR
The Electric Strike Simulator (p/n 259-506) can be used to test
voltage and current sensors on strike indicator. If readings are
less than indicated here, replace 9 volt battery in simulator and
retest.
Current Test
To test for current at normal levels:
1.
Thread one lead wire through current transformer.
2.
Clip ends of lead wires together to make one loop.
3.
Move simulator switch to "current" and press test button.
4.
Watch screen and lights above display on strike system.
•
Three or four lights should turn on.
•
Current "A" should show 30-50% in display.
To test for current at strike levels:
1.
Put two or three loops through current transformer.
2.
Follow steps above to test.
3.
Display should show the following:
•
All lights should turn on.
•
Alarm and strobe should turn on.
With two loops,
•
Current "A" should be 80-110%.
•
Strike indication might go on and off.
With three loops,
•
Current should be 130-160%.
•
Strike indication should be continuous.
Summary of Contents for JT920
Page 54: ...54 JT920 JT920L SAFETY SAFETY ALERTS 54 JT920 JT920L SAFETY SAFETY ALERTS...
Page 68: ...68 JT920 JT920L PREPARATION 68 JT920 JT920L PREPARATION...
Page 75: ...JT920 JT920L TRANSPORTATION 75 TOW JT920 JT920L TRANSPORTATION 75 TOW...
Page 76: ...76 JT920 JT920L TRANSPORTATION TOW 76 JT920 JT920L TRANSPORTATION TOW...
Page 167: ......
Page 168: ......
Page 169: ...JT920 JT920L 169 JT920 JT920L 169...
