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August 2020
The following below is the Hart Topology.
Please visit www.hartcomm2.org to learn more about
HART Protocol.
Section 4: Specifications
4.0 Transmitter Electrical Specifications
Supply Voltage:
Resolution:
Repeatability:
Non-Linearity:
Level Sensor Accuracy:
Analog Output Resolution:
Output:
Calibration:
Dampening:
Operating Temperature:
(Electronics)
16 to 36 VDC
0.039 in (1mm)
.005% of full scale or .010"
whichever is greater
.01% of full scale or .030",
whichever is greater
.01% of full scale or .020",
whichever is greater
.025% of full scale, (1) 4/20 mA
Primary level
One 4-20 mA output
Zero and span field adjustable
with pushbuttons
1 to 26 seconds (field
adjustable) via push-buttons
-58 to 185 °F (-50 to 85 °C)
Housing:
Hazardous Location Approvals:
Humidity Limits:
Vibration Limits:
RFI Limits:
4.1 Transmitter Sensor Tube
Material:
Operating Temperature:
Maximum Pressure:
Range:
Section 5: Menu Structure and Features
5.0 Pushbutton Operation
The menu structure and pushbutton operation of the LTM
series
transmitters is simple and
electronics module has 3 pushbuttons (from left to right):
This button is used to increment values and change "Yes" to
"No" and "No" to "Yes".
This button is used to decrement values and change "Yes" to
"No" and "No" to "Yes".
This is the enter button used to execute functions and
enter/exit into or out of submenus.
10
Reference Manual
L231040 Rev AD
Explosion Proof, Dual
Compartment, 1/2" npt, Epoxy
Coated Aluminum (Standard)
Explosion Proof, Dual
Compartment, 1/2" npt,
Stainless Steel (Model LTM-351
only)
FM – Exp Cl I, Div. I Grp. BCD, Cl
II, Grp. EFG, Cl III
CSA – Exp Cl I, Div. I Grp. BCD,
Cl II, Grp. EFG, Cl III
IECEx – Exp Ex d IIC T5
SAMA PMC 31.1-5.2
SAMA PMC 31.1-5.3
SAMA PMC 31.1-20 to 1000
MHz up to 30V/m
316ss standard, optional
Hastelloy, Monel, Kynar-coated
-50 to 302 °F (-50 to 150 °C)
2000 psig @ 300 °F
16 inches up to 30 feet
user-friendly.
The
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Troubleshooting
