Halma Alicat Scientific IVCD, Operating Manual, Page: 4 / 28

4 Table of Contents
Contents
Introduction
3
Quick Start Guide
5
Getting Started
6
Getting to Know Your Pressure Controller
6
The Pressure Controller Display
6
Status Messages
6
Mounting
6
Filters
6
Device Ports
7
Connecting Your Pressure Controller
7
Applications
8
Gauge and Absolute Pressure Control
8
Remote-Sensing Pressure Control
8
Differential Pressure Control
8
Dual-Valve Integrated Vacuum Controllers (IVCD)
9
Using Alicat Pressure Instruments with Liquids
9
Power and Signal Connections
10
Analog Signals
10
Displaying Live Data
11
Main Display
11
Taring Your Pressure Controller
11
How to Tare
11
When to Tare
11
Option: Color TFT Display
11
Control
12
Changing the Setpoint
12
Adjusting Setpoint with an IPC
12
Setpoint Setup
12
Using Autotare
12
Changing Between Setpoint Sources
12
Managing Setpoint with an Idle Modbus Connection
12
Managing Setpoint on Power-Up
12
Establishing Setpoint Limits
13
Control Loop
13
Changing the Controlled Variable
13
Adjusting the PD/PDF or PD²I Control Algorithms
13
Tuning the PD/PDF Control Algorithm
13
Tuning the PD²I Control Algorithm
13
Troubleshooting Valve Performance with PID Tuning
14
Using a Control Deadband for Pressure Control
14
Setpoint Ramping
14
Setting the Ramp Rate
14
Ramping Options
14
Displaying Valve Drive Percentage
15
Device Information
15
Setup
16
Sensor Setup
16
Choosing Engineering Units
16
Pressure Averaging
16
Zero Band
16
Configuring Serial Communications
16
Unit ID
16
Modbus RTU Configuration
16
Baud Rate
17
Display Setup
17
Main Screen Options
17
Screen Lighting
17
Display Rotation
17
Advanced Setup
17
Serial Communication
18
Modbus RTU Communication
18
Establishing Communication
18
Polling Mode
18
Streaming Mode
19
Taring
19
Collecting Data
19
Commanding a New Setpoint
20
Sending Setpoints as Floating Point Numbers
20
Quick Command Guide
20
Troubleshooting
21
General Use
21
Pressure Readings
21
Serial Communications
22
Maintenance
22
Cleaning
22
Recalibration
22
Reference Information
23
Engineering Units
23
Pinouts
24
8-Pin Mini-DIN (Default)
24
Locking Industrial Connector Pinout
24
9-Pin D-Sub Connector Pinouts
25
15-Pin D-Sub Connector Pinouts
25
M12 Connector Pinouts
26