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what is the difference between mmhg & mmwc?. i want to
calibrate a transmitter in the range of -100 to 300 mmwc.
Which is the reference for calibrate the Tx,if mmwc not
available?. Is it mmhg or mmho2?.
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Answer Posted / nileshji sekar saudi kayan
I DONT WANNA MAKE BIG STORY LIKE SAM
760mmhg = 10000mmwc = 10000mmh2o
apply pressure on txmtr hp side = -100mmwc or -7.6 MMHG=4mA
(IF NOT GETTING 4 MA DO ZERO TRIM)
-100mmwc or -7.6 MMHG =4mA
0 MMWC OR 0 MMHG = 8 mA
100MMWC OR 7.6 MMHG =12 mA
200MMWC OR 15.2 MMHG =16 MA
300MMWC OR 22.8 MMHG = 20 MA
(IF NOT GETTING 20MA DO UPPERSENSOR TRIM
MAKE SURE WHILE U APPLYING PRESSURE LP SIDE OF TXMTR IS
OPENLY VENTED TO ATMOSPHERE
| Is This Answer Correct ? | 11 Yes | 3 No |
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