Environnement MP101M, Technical Manual

Page: 150 / 196

Environnement
S.A
MP101M
Duplication prohibited
SEPTEMBER 2013
4–28
MAINTENANCE SHEET
Monitor serial No.:: OPERATION SHEET: 4.3.12
Scope : Verification / replacement of temperature and
relative humidity sensors.
PAGE : 1/1 Periodicity : 6 months
Dates
Procedure :
1/ Go to the
« I2C CARD(S)

RST board »
screen.
2/ Check the values of the atmospheric temperature and relative humidity using reference sensors.
If relative humidity is lower than 60%, check that Head temperature = Atmos. Temperature.
If relative humidity is higher than 60%, check that Head temperature = Atmos. Tempe 5°C.
3/ If necessary, adjust the A and B linearization coefficients of the three sensors.
4/ In case of replacement of the meteo sensor ( T°C and RH sensors) :
Refer to the calibration report of the relative humidity (RH) sensor provided :
Number sensor
Channel
...........................................
Pente (format xx,xxx)
Slope
S = .....................................
mV / %RH
Offset à zéro (format xx,xxx)
Zero offset
Z = .....................................
V
And on the
Relative humidity
field of the «
I2C CARD(S)

RST board »
screen, replace the values
of the A and B calibration coefficients by :
A = 1 / S
B = - Z x 1000 / S
–
Tools required

Reference gauge
– Replacement parts

M04-0045-B-SAV or P10-1317