POLA HP21A Instructions Manual

HP21A

SL 3.0

1,2 or 3-level thermostat / proportional controller

- Press SET to activate Relay 1, or :

- Press SET to activate 0 - 10v out

modify sets 2 & 3

Default settings
Set.1 (25˚C) Lamp OFF IN2. = OPEN
Set.2 (35˚C) Lamp FLASH IN2. = 100Ω
Set.3 (80˚C) Lamp ON IN2. = CLOSED

Mess. Value Meaning Note

diFF

3˚ Relay out Diff, 0˚ - 25˚

*1)

R.dIF

3˚ Relative relay out adjustment, -25˚- 25˚

*1)

ProP

5˚ 0-10v out proportional band, 0˚ - 25˚

R.Pro

0˚ Relative 0-10v band adjustment, -25˚- 25˚

bArG

6˚ Bargraph band, 0˚ - 25˚

Ad.t1

0˚

Adjustment for set 1, -25˚ - 25˚ *2)

Ad.t2

0˚

Adjustment for set 2, -25˚ - 25˚ *2)

Ad.t3

0˚

Adjustment for set 3, -25˚ - 25˚ *2)

Set.‾

85˚

Maximum Set.1/2/3 value 0˚ - 150˚

n.SEt =3 Number of sets, =1, =2, =3

24v AC Line

0 - 10v Output

O.C. = 1, 100Ω = 2

S.C. = 3

External set

point select

(Using

SXA probe)

Range 0-150˚C

Temperature

Temperature

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