OPERATING MANUAL HPC & UMC4
Page 29 of 105
8. Input
8.1
Measured variable
Mass flow rate, temperature, density and volume flow (calculated from the preceding measured varia-
bles).
8.2
Measuring range
The measuring range, which varies according to the used sensor, can be found on the relevant data
sheet or rating plate (see Section 4.3.2 HPC flow ranges on page 15).
9. Output
9.1
Output signal
All signal outputs
Electrically isolated from each other and to ground
Analog outputs
2 x 4 to 20 mA passive
Current output 1:
Mass flow, volume flow, density, temperature
(when using the HART
®
protocol, output 1 is assigned to mass
flow)
Current output 2:
Mass flow, volume flow, density, temperature
Pulse output
Pulse duration: default value 50 ms
(Binary output 1)
Pulse duration: adjustable range is 0.1 to 2000 ms
Mark-to-space ratio is 1:1 if the set pulse duration is not reached.
As a frequency output 1 kHz
passive via optocoupler
U
nom
= 24 V
U
max
= 30 V
I
max
= 60 mA
P
max
= 1,8 W
Pulse value
settable in decade increments of selected pulse unit,
e.g. kg or m³.
Status output
For: forward and reverse flow, MIN flow rate, MAX flow rate, MIN
density, MAX density, MIN temperature, MAX temperature, alarm
Second pulse output (out of phase by 90°)
Passive via optocoupler
U
nom
= 24 V
U
max
= 30 V
I
max
= 60 mA
P
max
= 1,8 W
