Watlow CLS200 - Manual (Page 101)

CLS200 Series User’s Guide Chapter 4: Setup
Doc.# 0600-3050-2000 Watlow Anafaze 85
Table 4.8 Input Reading Offset
Reversed T/C Detection
Set this parameter to ON to enable polarity checking for
thermocouples. If a reversed thermocouple is detected, the
controller sets the loop to manual control at the SENSOR
FAIL HT OUTPUT or SENSOR FAIL CL OUTPUT power level
and displays the alarm.
Selectable values: ON or OFF.
Input Pulse Sample Time
You can connect a digital pulse signal of up to 2 kHz to the
pulse input. Use this parameter to set the time over which
pulses are counted. The controller counts pulses for the
amount of time you set here before calculating the frequn-
cy. The controller scales this frequency and uses the result-
ing value as the process variable for the pulse loop.
Generally, the longer the pulse sample time, the more sta-
ble the process variable, but the slower the response of the
pulse loop.
This parameter is available only for loop 5 on the CLS204,
loop 9 on the CLS208 or loop 17 on the CLS216.
Selectable values: 1 to 20 seconds.
Type of Sensor
Offset Range
°F °C
RTD2
J
K
T
-300 to +300 -300 to +300
RTD1 -300.0 to +300.0 -300.0 to +300.0
B
S
-300 to +76 -300 to +300
R -300 to +66 -300 to +300
ALARM
01 REVERSED T/C
DETECT ? OFF
ALARM
17 INPUT PULSE
SAMPLE TIME ? 1S