Pola HP21B Spraybooth controller 3 set points

General Description

Pola HP21A/HP21B is a 1, 2 or 3 set point, spray booth temperature control with 0-10Volts and relay output. It has been designed specifically to easily select between any of the different set points.

Pola HP21B has now replaced the HP21A, For HP21A manual please click here.

For a spare sensor for the Pola HP21B, you can order the Pola SXA here.

Main Features

2 of the terminals are assigned for remote set point selection by a switch, timer, etc. By either closing, opening or closing them with a 100 Ohm resister, the different set points may be selected.
For the user, separate temperatures may easily be set and then quickly selected by use of an external switch.
Alternatively, an external timer could initiate the different temperature set points automatically.

It has individual temperature calibrations for each set point.

A large 20mm display indicates temperature in C.

LEDs indicate condition of program and outputs.

Technical Specification

Power supply 24VAC +/- 10%
Mains frequency 50Hz +/- 20%
Power consumption 4W
1 x fused SPDT Output Relay:
Resistive contact rating 3Amp 220V
Inductive contact rating 1 Amp 220V
1x 0-10v proportional output
Measuring range -50.0/125.0 Deg.C
Operating temperature -10/70 Deg.C
Overall dimension 96x96x63 mm
Overall dimension (IP54 version) 98x125x75 mm - available at request.