Proline Promass 83E/F/O Modbus RS485 Operating Instructions
Proline Promass 83E/F/O Modbus RS485 Operating Instructions
Proline Promass 83E/F/O Modbus RS485 Operating Instructions
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Troubleshooting<strong>Proline</strong> <strong>Promass</strong> 83 <strong>Modbus</strong> <strong>RS485</strong>#Warning!"Caution!9.6.2 Replacing the device fuseRisk of electric shock. Exposed components carry dangerous voltages. Make sure that the powersupply is switched off before you remove the cover of the electronics compartment.The main fuse is on the power unit board å 53.The procedure for replacing the fuse is as follows:1. Switch off power supply.2. Remove the power unit board ä 1023. Remove the protection cap (1) and replace the device fuse (2).Only use the following fuse type:– 20 to 55 V AC / 16 to 62 V DC 2.0 A slow-blow / 250 V; 5.2 × 20 mm– Power supply 85 to 260 V AC 0.8 A slow-blow / 250 V; 5.2 × 20 mm– Ex-rated devices see the Ex documentation4. Installation is the reverse of the removal procedure.Use only original Endress+Hauser parts.Fig. 53:1 Protective cap2 Device fuseReplacing the device fuse on the power unit boardPage 106 • MN0M030Issue/Rev. 0.2 (12/12)
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