PPI HumiTherm-c Series User Manual

8
The PAGE-10 lists Alarm and Control related parameters for Dry-Bulb Temperature. The Table 4.1 below describes each
parameter.
Table 4.1
TEMPERATURE PARAMETERS
Parameter Description
Settings
(Default Value)
(Default : 0.5)
0.3 to 25.0°C
(Default : 0.2)
0.2 to 10.0°C
ALARM-1 BAND
Sets symmetrical positive and negative deviation (offset) limits
from Temperature control setpoint for both High and Low Alarm-1
activation.
Example:
If Band = 0.5°C, then
High Alarm Limit = Setpoint + 0.5°C
Low Alarm Limit = Setpoint - 0.5°C
ALARM-1 HYSTERESIS
Sets differential (dead) band between ON and OFF states of
Alarm-1.
Sets proportional gain (% power per unit error) for temperature
control loop. Defined in same units and resolution as that for PV.
PROPORTIONAL BAND
Sets integral time constant in seconds for temperature control
loop. Setting the value to 0, cuts-off the integral action.
INTEGRAL TIME
0 to 1000 Seconds
(Default : 100)
(Default : 5.0)
0.1 to 999.9°C
(Default : 1.0)
0.5 to 25.0 Seconds
(in steps of 0.5 secs.)
CYCLE TIME
Sets the total ‘On + Off’ time in seconds for time proportional
power output for temperature control loop through Output-1.
DERIVATIVE TIME
Sets derivative time constant in seconds for temperature control
loop. Setting the value to 0, cuts-off the derivative action.
(Default : 25)
0 to 250 Seconds
User Manual
HumiTherm-c (Dry-Wet)
Section 4

PPI HumiTherm-c Series Specifications

General

Brand	PPI
Model	HumiTherm-c Series
Category	Controller
Language	English