16
Meter specifications
Section 1: Introduction
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
June 2017
3-9000-765 Rev H
Transducers
•
LT-10 and LT-11 Operating temperature range with NBR O-rings
-58
o
F to +275
o
F (-50
o
C to 135
o
C)
•
LT-10 and LT-11 Operating temperature range with FKM O-rings
-40
o
F to +302
o
F (-40
o
C to +150
o
C)
Note: The process temperature must not exceed the operating temperature range of
the transducers.
Note: LT-10 transducers are designed for 4 inch to 10 inch meters. LT-11 transducers are designed
for 12 inch and larger meters.
Note: The ultrasonic transducers are not intended for use across boundary walls of different
hazardous area classifications. The transmitter electronics cannot be remote mounted from
a Division 1 classification to a Division 2 area to meet an area classification.
Acquisition Cable
•
Total cable length between the Acquisition Module and ultrasonic transducers must not
exceed 15 feet (4.7 meters) when using the remote mount option (
Communications specifications
Connectivity protocols
One serial RS-232/RS-485 port (115 kbps baud rate) (Modbus RTU/ASCII)
•
(1) Serial Port A
(RS-232/RS-485 Full Duplex/RS-485 Half Duplex)
One Ethernet Port (TCP/IP) 100 BaseT
•
Modbus TCP
Device compatibility
FloBoss 103, FloBoss S600 flow computer, ROC 107
Digital, analog, and frequency inputs
Digital Input(s)
(Selectable)
(1) Single polarity (for flow calibration gating - contact closure)
•
Single input for starting and stopping
•
Four pulse configurations available
Analog Input(s)
(2) 4-20 mA
•
AI-1 Temperature
•
AI-2 Pressure
Note: The analog-to-digital conversion accuracy is within ±0.05% of full scale over the operating
temperature range.
Note: AI-1 and AI-2 are electronically isolated and operate in sink mode. The input contains a
series resistance so HART® Communicators can be connected to configure sensors.
A 24 Volt DC power supply is available to provide power to the sensors.
Digital, analog, and frequency outputs
Table 1-2 Meter specifications
