Halma ALICAT BC Series, Operating Manual

Page: 4 / 31

4 Table of Contents
Contents
Contact Information
2
Calibration
2
Introduction
3
Getting Started
5
Mounting
5
Filters
6
Gas Connections
6
Maximum Pressure
6
Power and Signal Connections
6
Control
8
FlowVision 2.0
8
Establishing Communication 8
Alicat ASCII Serial Communication
10
Establishing Communication
10
Data Frame Format
10
Query Full Data Frame
11
Query Specific Data 11
Setpoint
11
Setpoint Source
11
Maximum Setpoint Ramp Rate
12
Communication Watchdog 12
Hold Valve Position / Resume Flow
13
Loop Control Gains
13
Reference Temperature
13
Readings Averaging 13
Configure Measurement Triggering
13
Start a Measurement
14
Measurement Averages and Ranges
14
Taring the Instrument 14
Autotare
15
Active Gas
15
Totalizer Reset
15
Totalizer Batch 15
Totalizer Configuration
16
Full Scale Flow
16
Unit ID
16
Serial Number 16
Version Number
16
MODBUS Address
16
Serial Baud Rate
17
Command Protocol 17
Load Factory Default as Current Configuration
17
MODBUS-RTU
18
Communicating Via MODBUS-RTU 18
MODBUS Address
18
Changing the Baud Rate
18
Setpoint Type
19
Changing the Setpoint 19
Communication Watchdog
19
Taring the Instrument
19
Flow Averaging
20
Totalizer 20
Batch Dispensing
20
Changing the Gas
20
Switch Command Protocol
20
User Registers 21
Instantaneous Data Registers
21
Measurement Data Registers
22
Configuration and Function Registers
24
Analog Signals
28
Changing the Setpoint 28
Reading the Flow
28
Troubleshooting
29
Maintenance
30
Cleaning
30
Recalibration
30
Reference
31
Engineering Units
31