ABB K-TEK AccuTrak AT500, Руководство по установке и эксплуатации

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AT500-0200-1b (10-2010) DCN0528 5
2.4.1 Setting ALARM to 3.6mA (Low Alarm)

Enter the ALARM SETUP MODE by applying power to the unit while Magnet is at position X.

Slide magnet to position Z to set the unit to 3.6 mA / Low Alarm; this step is verified by checking that
the output is now at 3.6 mA
2.4.2 Setting ALARM to 21mA (High Alarm) default

Enter the ALARM SETUP MODE by applying power to the unit while Magnet is at position X.

Slide magnet to position S to set the unit to 21.0 mA / High Alarm; this step is verified by checking
that the output is now at 3.6 mA
Note: Once in ALARM SETUP MODE, you can toggle the High & Low alarm settings as many times as
needed. After 5 seconds of no switch activity, the unit will time out and resume normal operation using
the new alarm setting.
2.5 4 mA / 20 mA DAC Trim
If required, the unit’s 4 ma and 20 ma outputs can be trimmed as follows:
2.5.1 Setting 4.0 mA DAC Trim

Enter the 4 mA DAC TRIM MODE by applying power to the unit while Magnet is at position Z.

Magnet at position Z will decrease the output at - 0.01 mA intervals

Moving the magnet to position S will increase the output at + 0.01 mA intervals

Continue to Increase/Decrease the output until the output is at 4.00 mA

The unit will time out after 5 seconds of no switch activity and resume normal operation using the
new 4.0 mA trimmed value.
2.5.2 Setting 20.0 mA DAC Trim

Enter the 20 mA DAC TRIM MODE by applying power to the unit while Magnet is at position S.

Magnet at position S will increase the output at + 0.01 mA intervals

Moving the magnet to position Z will decrease the output at - 0.01 mA intervals

Continue to Increase/Decrease the output until the output is at 20.00 mA

The unit will time out after 5 seconds of no switch activity and resume normal operation using the new 20.0 mA trimmed
value.
S
Z
X