Fluid Components International CMB - Manual (Page 33)

8. Output
8.1 Output signal
All signal outputs Electrically isolated from each other and from ground
Analog outputs
2 x 0/4 to 20 mA active( EEx “i” [outputs i.s.] or EEx “e”)
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 10 to 2000 ms
Mark-to-space ratio is 1:1 if the set pulse duration is not reached.
As a frequency output 1 kHz (optionally 10 kHz)
Passive, via optocoupler
U
i
= 30 V
I
i
= 200 mA
P
i
= 3 W
Active, potential-free
(24 V =; max. 20 mA)
The CT binary output 1 can be wired as a passive or an active out-
put by inserting the JP10 plug-in jumpers on the UMC3-10 PCB
accordingly. For the active output, the jumpers BR11 and BR12
must be closed in addition.
Pulse value
1 pulse/unit
The pulse value can be multiplied by a factor between 0.01 and
100.0 (decade increments) of the selected pulse unit, e.g. lbs, kg,
m³...
Status output
For: forward and reverse flow, MIN flow rate, MAX flow rate (Binary
output 2): MIN density, MAX density, MIN temperature, MAX tem-
perature, alarm
Second pulse output (out of phase by 90°)
Passive via optocoupler
U
i
= 30 V
I
i
= 200 mA
P
i
= 3 W
8.2 Failure signal
A failure in the meter can be indicated via the current outputs or the status output. The current outputs
can be set to a failure signal (alarm) of I < 3.8 mA or I > 22 mA. The status output can be configured as
make or brake contact.
CMB & CT OPERATING MANUAL
Part No 06EN003384 rev. 1.6 Page 33 of 106