Omega-engineering CN9400 User Manual download pdf (Page 20)

Function List

FUNCTION LIST (Levels 1 to 4)

BAND

Too narrow

(oscillates)

increase

Too wide

(slow warm up and response)

decrease

BAND

Note: A Functions Menu is shown on the cover fold-out A3

LEVEL 1

Function Options

[Factory settings] shown in brackets

SELECT AUTOTUNE

[oFF] on ParK At.Sp

Used to switch the Autotune feature on and off, to

select

ParK

or Autotune at setpoint.

ParK

temporarily turns the output(s) off. To use select

ParK

and exit program mode. To disable re-enter

program at

tunE

and select

oFF

SP1 OPERATING PARAMETERS

0.1 to * °C/°F [10ºC/18ºF]

SP1 proportional band/Gain or Hysteresis

* 25% sensor maximum

Proportional control eliminates the cycling of on-off

control. Heater power is reduced, by time

proportioning action, across the proportional band.

Function Options

[Factory settings] shown in brackets

oFF 0.1 to 60 minutes [5.0]

SP1 integral time/reset

Auto-corrects proportional control offset error

oFF 1 - 200 seconds [25]

SP1 derivate time/rate

Suppresses overshoot and speeds response to

disturbances

0.5 - 5.0 x bAnd [1.5]

SP1 derivative approach control dAC

Tunes warm-up characteristics, independent of normal

operating conditions, by controlling when derivative

action starts during warm-up (smaller dAC value =

nearer setpoint).

Too short

(overshoots and oscillates)

Too long

(slow warm up and response)

Too short

(slow warm up and response,

under corrects)

Too long

(oscillates and over corrects)

disturbance

Too small

(overshoots)

Too large

(slow stepped warm up)

TUNE

BAND

INT.T

DER.T

DAC

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 37 38

Comments to this Manuals

No comments

Omega-engineering CN9400 User Manual Page 20

Comments to this Manuals

Related products and manuals for Thermometers Omega-engineering CN9400