molbox™ RFM™ OPERATION AND MAINTENANCE MANUAL
© 1998-2007 DH Instruments, a Fluke Company
Page 60
OPERATION
– molbloc-L Operation
Press [P&T] from any run screen. The display is:
1.
Pressure read by the upstream RPT (left), the downstream
RPT (right) and the pressure unit of measure (middle).
2.
The current differential pressure in the current pressure unit
of measure.
<DP>
indicates the value is differential pressure.
<mDP>
indicates the measurement is from the microrange
differential RPT (if present).
3.
Current Reynolds number of the flow through the molbloc.
97.788 kPa 97.783
mDP 0.005 Re 0.02
Pressing [P&T] again or the [+/-] key toggles between the pressure screen and the
temperature screen:
1. The average molbloc temperature in the current unit of
measure (up downstream/2).
2.
The temperature measured by the upstream molbloc platinum
resistance thermometer in the current unit of measure.
3.
The temperature measured by the downstream molbloc platinum
resistance thermometer in the current unit of measure.
21.80ºC
21.82ºC 21.78ºC
To leave the P&T function and return to the MAIN run screen, press
[ESCAPE]
.
To change the pressure and/or temperature unit of measure, see Sections
3.5.2
and
3.5.3
.
OPERATION
– molbloc-S operation
1. The current pressure read by the upstream (left) and
downstream (right) RPTs and the current pressure unit of
measure (middle). In BPR OFF or Auto modes, tare is
automatically applied to these readings. In BPR ON mode,
tare is never applied.
2. Arrow to indicate which pressure is being read by the
“downstream” RPT. Down arrow indicates downstream
pressure, Up arrow indicates upstream pressure.
3.
The current BPR (ratio of downstream to upstream absolute
pressure).
4.
Current Reynolds number.
259.31 kPa
↓
99.577
BPR 0.38 Re 11039
Pressing
[P&T]
again or the
[+/-]
key toggles between the pressure screen and the
temperature screen:
1. The average molbloc temperature in the current unit of
measure (up downstream/2).
2.
The temperature measured by the upstream molbloc platinum
resistance thermometer in the current unit of measure.
3.
The temperature measured by the downstream molbloc platinum
resistance thermometer in the current unit of measure.
21.80ºC
21.82ºC 21.78ºC
To leave the P&T function and return to the MAIN run screen, press
[ESCAPE]
.
To change the pressure and/or temperature unit of measure, see Sections
3.5.2
and
3.5.3
.