Despatch Protocol 3 Controller - Manual (Page 47)

Protocol 3 Controller Owner’s Manual W ORKING WITH O PERATING M ODES
Version 1.2 47
Copyright © 2013 by Despatch Industries.
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Table 15. Configuration Menu in Tabular Format.
Config-
uration
Menu
Description Function Available Settings
Input
Provide
primary
control and
high limit
settings
Control Input
Setup

Input Type: Thermocouples, PtRh, PT100,
NI120, amperages, voltages

Engineering Units: °C, °F, °K, bar, %, %RH, pH,
psi or none

Decimal Point Position: Nearest 1/10 or 1/100
for DC inputs

Scale Input Range (lower and upper limits):
Min & Max range. Minimum range by default.

Input Filter Time: OFF-100 Sec

Cold Junction Compensation: Disable/Enable
Control Input
Calibration

Factory Calibration:

Single Point Calibration: OFF, -400-+400°

Two Point Calibration: Low Temp. Low Offset,
High Temp, High offset
High Limit
Input Setup

Input Type: Thermocouples, PtRh, PT100,
NI120, amperages, voltages

Engineering Units: °C, °F, °K, bar, %, %RH, pH,
psi or none

Decimal Point Position: Nearest 1/10 or 1/100
for DC inputs

Scale Input Range (lower and upper limits): Min
& Max range

Input Filter Time: OFF-100 Sec
High Limit
Input
Calibration

High Limit Process Variable: -250

Factory Calibration: Resets back to factory
defaults

Single Point Calibration: OFF, -400-+400°

Two Point Calibration: Low Temp, Low Offset,
High Temp, High Offset
Control
Set control
actions, PID
control
options and
setpoint
limits
Primary Action
Control

Reverse Action /Direct Action: Reverse applies
primary power when below setpoint

Primary Proportional Band: From ON-Off
control or set width of band from 0.1 to 999.9

Integral Time (Auto-Reset): 1 sec to 99 min 59
sec or OFF

Derivative Time (Rate): 1 sec to 99 min 59 sec
or OFF

Primary Cycle Time: 0.5 sec to 512 sec

Primary Power Upper Limit: Minimum primary
power from 1 to 99% available power. Value
must be higher than the lower limit.

Primary Power Lower Limit: Maximum primary
power from 10 to 100% available power. Value
must be lower than the upper limit.

Setpoint Upper Limit: Maximum allowed control
setpoint

Setpoint Lower Limit: Minimum allowed control
setpoint