SMAR TT400WH, Manual

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Section 3
3.1
MAINTENANCE
General
TT400 Wireless HART TM is extensively tested and inspected before delivery to the end user.
All maintenance services must be carried out by a qualified person and the replacement of components
(supplied by Smar) must only be carried out by qualified personnel.
Diagnostics with the Display
The display can show failure messages in the alphanumeric segment. These messages are shown in
Table 3.1.
DIAGNOSTIC MESSAGES POTENTIAL SOURCE OF PROBLEM
FAIL RADIO Indicate problems on the radio.
LOW BATT Indicate battey with low level.
FAIL BATT Indicate battey with critical level.
PVbad Indicate error in the sensor measurement.
Tbad Indicate error in the ambient temperature measurement
Table 3.1 – Diagnóstic with Display
Problems and Solutions
Equipment does not connect to the Wireless HART
TM
network
Possible causes:
- The equipment is turned off;
- Network/Gateway manager is turned off;
- The equipment is far from the Network/Gateway Manager or other equipment connected to it;
- Safety key (Join Key) and Access key (Network Id) are not configured correctly;
- The antena is not connected in the Network/Gateway Manager or in the equipment;
- There is an Access Control List in the Network/Gateway Manager and the device is not on this list;
- Maximum number of equipment configured in the Network/Gateway Manager was reached.
Equipment disconnecting and connecting to the network continuously to the Wireless HART
TM
network
Possible causes:
- Low battery or bad contact in the power causing the restart of equipment;
- The connectivity in relation to neighbors is unstable (mobile obstacles or distance in the limit);
Equipment is within the operating range, but the communication stability is not good
Possible cause:
- Interference. Move the equipment closer until better stability is achieved.