FISCHER MMS - Measurement

Measurement
28 MMS
®
Inspection DPM High
6Measurement
The gage model MMS Inspection DPM High is for continuously measuring tem-
perature (Ta, Ts) and humidity (RH) to determine the dew point (Td) and the dif-
ference between surface temperature and dew point (Ts-Td). You can log all
these climate values over a prolonged period, monitor specification limits and
emit an optical warning if limits are exceeded (alarm function).
The following factors are measured: air temperature (Ta), relative humidity (RH)
and surface temperature (Ts)
From the measured factors, the dew point (Td) and the difference between sur-
face temperature and dew point (Ts-Td) are calculated.
All measured and calculated climate factors are saved simultaneously (manu-
ally or continuously).
Notes on measuring
Measurement errors
Measurement errors occur if ambient air
cannot flow through the housing grille in the
lower area of the gage!
► Keep the housing grille in the lower area of
the gage clear. Avoid covering with hands,
material or other objects.
► Allow ambient air to flow unhindered through
the housing grille in the lower area of the
gage.
► Observe the instructions for handling the
gage during a measurement, described in
Chapter "Correctly holding the gage during
the measurement" on page 30
Values outside the specification limits are dis-
played in red.
Limit violations are indicated by a red flashing signal LED, if the alarm
function is activated.
The probes for air tempera-
ture and relative humidity are
protected by the housing
grille