ka yd en
. c o m
27
Setup & Opera tion
CLASSIC 800 Product Manual
5. View or Adjust the Heater Power
•
The correct heater setting is determined primarily by the process media and secondarily by the
v
elocity of the process. The heater setting is a key factor in determining the sensitiv
ity and
reaction time of the switch/transmitter.
•
The Factory Default setting of 75% is optimal (70 - 80% depending on v
elocity) for Hydrocarbon-
based liquids and suitable for many applications. The CLASSIC 800 allows the Heater Power to be
set between 0% and 1 00% in 5% steps.
•
GUIDELINES FOR SETTING HEATER POWER:
•
20 - 35% heater power (5-8 LEDs)
- Air or Gas (Flow) (depending on v
elocity)
•
60 - 75% heater power (1
3-1
6 LEDs)
- Oil or Hydrocarbon based liquids (Flow, Lev
el & Interface)
•
80 - 1
00% heater power (1
7-21
LEDs)
- Water or non-v
iscous liquids (Flow, Lev
el & Interface)
The faster the flow rate (v
elocity) the more heat is required. In lev
el applications the amount of
heat, in part, determines the reaction time.
•
The CLASSIC 800’s sensor heater produces 2 watts at full power.
•
The main processor continuously and automatically monitors the heater element. This is the
“Smart Heater” function. When the Thermal Signal decreases dramatically or goes to zero,
the main processor will automatically reduce the output of the heater from the user setting to
a lower power rating in order to prev
ent the creation of a “Thermal Offset”. This function will
be automatically repeated until such time as the Thermal Signal increases.
Note:
This function may be clearly observ
ed in the graph function of the RCM software.
To View or Adjust the Heater Power:
1
.
Press and release
SET
until the
Relay 1
status LED is
flashing
AND the
Run Mode
LED is off.
2.
The
Thermal Signal Bar Graph
now shows the setting of the Heater Power in percent (0% = Heater
Off; the sixth illuminated LED = 25%; 1 00% = Heater Full On).
3.
To adjust the Heater Power press and release the
Left
or
Right Arrow
key.
4.
When satisfied with your configuration, press and release
SET
to continue to the next programmable
v
ariable OR press and release
RUN
to return to
Run Mode.
Thermal Signal
1 00%
0
Relay 1
Relay 2
Fault
Set Point 1
Set Point 2
Run Mode
Bypass
RUN
SET
1
2
CLASSIC
™
Thermal Signal
1 00%
0
Relay 1
Relay 2
Fault
Set Point 1
Set Point 2
Run Mode
Bypass
RUN
SET
1
2
CLASSIC
™
Air/G
as
Water
Oil
Figure 1
9 – Setting the Heater Power
RUN
adv
ances to Run Mode
SET
adv
ances to next Setup step
Run Mode
LED is Off in Setup Mode
Relay 1
is
flashing
Increase
Heater Power
Decrease
Heater Power
Single LED displays
Heater Power setting
25472-1 01 -V1 A-JF00-W0010 Rev 02
Summary of Contents for CLASSIC 800 Series
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