Safeguarding without rundown time

By using a trapped key system, this mixer is safeguarded in a pre-determined sequence without the need of wiring. mGard products are very robust and ideal for use in harsh conditions, such as heat, vibration, dust and moisture.

1. BM1-CLIN First the isolation switch is operated into a safe condition. In this "off" position it''s possible to shoot the bolt of the BM1bolt-lock to isolate the switch and release the key.
2. XM3-CLIN The isolation key can now be inserted into the XM3 key exchange box and trapped, allowing the two access keys to be released.
3. DM1-CLIS-H The two access keys can be inserted into the handle operated door interlocks located on the mixer, enabling the hatches to be opened for maintenance or repair purposes.
   
   Mixer restart is only possible after reversing the sequence.

Safeguarding with rundown time

This enclosed machine area is safeguarded with the use of a solenoid controlled trapped key interlock system. The modular arrangement allows configurations for virtually any safeguarding application.

1. SS1-CLIN-A02022D024B After remote request for access and/or rundown time, the solenoid of the SS1solenoid controlled key switch is energised releasing the key. After releasing the isolation key, the machine is isolated.
2. XM3-CLIN The isolation key can be inserted into the XM3 key exchange box to release two access keys.
3. DM1-CLIN-H & DM2-CLIN-H The access keys can be used to open the doors to the safeguarded area. Full body access doors are equipped with a safety key, that can be taken into the safeguarded area, to prevent accidental lock in.
   
   Machine restart is only possible after reversing the sequence.

mGard linked to amGard

By combining the mGard range of trapped key interlocks, with the electro mechanical functions of the amGard range, additional safety features can easily be integrated to take advantage of the benefits of control isolation/interlocking. In this example an mGard solenoid controlled key switch unit is used to safely control the use of amGard switch controlled door locks.

1. SS2-CLIN-A02022D024B After remote request for access and/or rundown time, the solenoid of the SS2 solenoid controlled key switch is energised releasing the two keys "A". After releasing at least one of these isolation keys, the machine is isolated.
2. AMS1A1STOP024CLIN The two keys "A" can be inserted into the handle operated door locks, to access the safeguarded area.
   
   This configuration is equipped with two additional safety functions: A Safety switch which monitors the presence of key "A" and a safety key adaptor with safety key "B' to prevent accidental lock in and/or machine restart.