Omni 7000 Series Installation Guide

OMNI 4000/7000 Installation Guide – Rev H
Page 8-4
Technical Specifications
Process Input and Output Modules Capabilities and Features
Type
Input
#1
Input #2
Input #3
Input #4
Analog
Outputs
Level A
Fidelity
Double
Chronometry
Proving
A
4-20 mA, 1-5 V,
RTD
4-20 mA, 1-5V,
Flow Pulses
Two
4-20 mA
No
No
B
4-20 mA, 1-5 V,
RTD
4-20 mA,
1-5V,
Flow
Pulse
Frequency
Density
One
4-20 mA
No
No
E/D
4-20 mA, 1-5 V,
RTD
Frequency Density
Two
4-20 mA
No
No
E
4-20 mA, 1-5 V,
RTD
Flow Pulses
Two
4-20 mA
Yes
Yes
HT/HM
HART FSK Protocol
Two
4-20 mA
No
No
Flowmeter Pulse Inputs*
Specifications
Input Frequency
• DC to 15 kHz square wave
• DC to 12 kHz sine wave**
Positive Going Trigger Threshold
+4.2 V ± 0.2 V (nominal @ 1 kHz)
Negative Going Trigger Threshold
+3.2 V ± 0.2 V (nominal @ 1 kHz)
Input Impedance
1 MΩ (nominal @ 1kHz)
Configuration
Differential input (E module inputs are single-ended
referenced to DC return)
Common Mode Voltage
±250 VDC to chassis ground
Pulse Fidelity Check
Channels are continuously compared for frequency and
sequence
E Module Only
• Complete failure of either A or B channel will not
affect totaling
• Simultaneous noise pulses are rejected with better
than 90% certainty
* Use the DC coupling–high threshold setting.
** The maximum frequency allowed is reduced when operating with a sine wave input signal.
This is because the signal must extend beyond the high-level threshold and below the low-level
threshold for a minimum of 30μs to allow the photo-optical couplers to conduct.

Omni 7000 Series Specifications

General

Brand	Omni
Model	7000 Series
Category	Desktop
Language	English