Dairy/Pasteurization Models - ABB C1900 series User Manual

...1 INTRODUCTION

1.1 Dairy/Pasteurization Models

The three models are: 1951 Recorder, 1952 Recorder/
Controller and 1953 Recorder/Controller (enhanced). These
provide the following features:
• dual RTD measurement of hot product,
• up to 8 diversion set points available,
• LED indication of forward and divert flow conditions,
Divert Valve Status
Divert Valve Control
Pump Power Output
(FDA dairy applications only)
Raw
Product
2
Hot Water
Control Output
Steam
Control
Valve
Steam
3-way
Valve
Divert
Hot Product
Temperature Sensor
Storage
Fig. 1.2 Pasteurizer System Schematic Diagram
• leak valve detection safety input,
• continuous hot product and divert set point display,
• forward/divert true-time event pen – can be extended
to show cleaning in place (CIP),
• optional fourth analog input to record flow, pressure or
other dairy related parameters on blue pen (1953 only).
Red Pen (1)
Hot Product
Green Pen (2)
Cold Product
Blue Pen (3)
Auxiliary Input
Violet Pen
True Time Event Pen
Hot Water
Temperature
Sensor
Hot Water
Tank
Pump
Heating
Mains Power Supply
Hot Product
Temperature
Sensor
Product
Cold Product
Temperature
Sensor
Regeneration Cooling
Pump
Cold