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Installation Manual
MMI-20029969
Variable
Density calibration factors
Function block settings
Channel assignment
L_Type
XD_scale (engineering units
assignment)
2.3
Power requirements
Self-switching AC/DC input, automatically recognizes supply voltage:
•
85 to 240 VAC, 50/60 Hz, 6 watts typical, 11 watts maximum
•
18 to 100 VDC, 6 watts typical, 11 watts maximum
Note
For DC power:
•
Power requirements assume a single transmitter per cable.
•
At start-up, the power source must provide a minimum of 1.5 amps of short-term
current per transmitter and not pull voltage below 18 VDC.
•
Length and conductor diameter of the power cable must be sized to provide 18 VDC
minimum at the power terminals, at a load current of 0.7 amps.
Cable sizing formula
M = 18V + (R x L x 0.5A)
•
M: minimum supply voltage
•
R: cable resistance (in Ω/ft)
•
L: cable length (in ft)
Typical power cable resistance at 68 °F (20.0 °C)
Wire gauge
14 AWG
16 AWG
18 AWG
20 AWG
Installation Manual
Setting
—
D1:
—
D2:
—
K1:
—
K2:
—
TC:
—
FD:
Resistance
0.0050 Ω/ft
0.0080 Ω/ft
0.0128 Ω/ft
0.0204 Ω/ft
Planning
October 2022
9
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