Emerson 3-9000-771A Carbon Monoxide Alarm User Manual


 
Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual Section 1: Introduction
3-9000-771 Rev A May 2012
Meter specifications 9
Electronic specifications
Power Meter
10.4 VDC to 36 VDC
11 W typical power consumption
Serial cable
Belden #9940 or equivalent (22 gauge)
Capacitance (pF/m) 121.397 (conductor to conductor)
Capacitance (pF/m) 219.827 (conductor to other conductor and shield)
Resistance (DC) DCR @ 20°C (Ohm/km) 48.2307
Nominal Outer shield resistance - DCR @ 20°C (Ohm/km) 16.405
Operating voltage - 300 V RMS (UL AWM Style 2464)
Current 2.4 Amps per conductor @ 25°C (recommended)
Ethernet cable
Cat-5 Standard 100Mbps
Frequency (
see Table 3-5)
22 AWG wire characteristics are as follows:
Capacitance = 20 pF/ft or 20 nF/1000 ft (between two wires)
Resistance = 0.0168 Ohms/ft or 16.8 Ohms/1000 ft
Pull-up voltage is 24 VDC
Temperature
flameproof Transmitter
Electronic Enclosure and
Base Electronics Enclosure
Transducers
LT-07
Operating Temperature Range -321
o
F to +140
o
F (-196
o
C to 60
o
C)
Communications specifications
Connectivity protocols One serial RS-232/RS-485 ports (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
Up to 10 Mbps
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.
Table 1-2 Meter specifications