Micropilot FMR60/62/67
20 Endress+Hauser
Test sequence A
Preparation
1. Connect suitable measuring device (recommended accuracy better than ±0.1 mA) to the
current output.
2. Determine the safety setting (level limit or range monitoring).
Procedure for level limit monitoring
1. Approach at least one level directly above (MAX monitoring) or directly below (MIN
monitoring) the level limit to be monitored. A mechanical swivel reflector can be used for
example as a method for checking in the case of MAX monitoring. When using a swivel
reflector, the device must be correctly configured in the operating menu when commissioning
for the first time.
Navigate to: Setup → Advanced setup → Level and configure the following: Max. filling speed
liquid = Very fast > 2m (80in) /min
The safety function is checked.
2. Check safety function: Read the output current, record it and assess for accuracy.
3. If (as an option) the function of the measuring point is to be checked immediately in front of
the switch point: Checks the function in front of MIN or MAX switch point: Approach level
immediately below (MAX monitoring) or above (MIN monitoring) the limit to be monitored.
Read the output current, record it and assess for accuracy. This does not check the safety
function of the device.
The test is to be considered successful if the current values trigger or ensure the required
function.
Procedure for range monitoring
1. Approach five levels within the range to be monitored.
2. Read the output current at each level value, record it and assess for accuracy.
The test is to be considered successful if the current values in step 2 are within the
required level of accuracy.
The proof-test is to be considered to have failed if the expected current value deviates for a
specific level by > ±2 %. For troubleshooting, refer to the Operating Instructions (→ 7). 99 %
of dangerous, undetected failures are detected using this test (Proof test coverage, PTC = 0.99).
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