KMS-2/Exia Transmitter
Installation and Operating Manual
ATEX
Rev D 20/09/2018 KMS-2/Exia IOM Page 3 of 13
Analogue Output: The process variable and error status are transmitted over the current loop with values as
shown in table 2.
LED’s: Provide local indication during calibration when the optional LCD is not fitted.
Mode Function
Outputs
ANALOGUE Zero LED Span LED
NORMAL
Measuring
4-20mA Off Off
Fixed Output
Zero
4mA On Off
Span
20mA Off On
Fault Signalling
Current Setting
Downscale
4-20mA
Flash Off
Upscale
Off Flash
CALIBRATION
Start
12mA Flash Flash
Zero set
12mA On Off
Span set
12mA Off On
Alarm
Low level
3.8mA Off Off
Downscale
3.58mA Off Off
Upscale
22mA Off Off
Table 2
Instrument output status indication
The Low Level alarm must be enabled as shown in the configuration section. When set
the output signal will change to 3.8mA if the float drops more than 13mm below Zero
point.
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