Kayden Instruments Corporate
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Compare of Thermal Level Switches

Processes
Price Range
Sensing Element
Electronics
Input Power
Outputs
Control Circuit Features
Communications
User Interface
Area Classifications
Enclosure Cover
Enclosure
FEATURES MODEL
Processes CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Liquids
Gases
Slurries  
Interface  
Air & Inert Gas
Price Range CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
$ = low, $$$$$ = high $$$$ $$$ $$
Sensing Element CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
No moving parts
All-welded sensing elements
Wetted Materials:      
316L Stainless Steel (Std.)
Exotic alloys  
Process Connections:      
Insertion lengths - standard  
Insertion lengths - custom  
1/4" & 1/2" MNPT  
3/4", 1", 1¼", 1½" & 2" MNPT  
3/4" MNPT Only    
Flanges 1½" ANSI 150 to 10" ANSI 2500  
Retractable packing gland assemblies
(1" MNPT and flanges)
 
Sensors' Process Temperature Range:      
-55°C to +200°C (-67°F to +392°F)  
-40°C to +75°C (-40°F to +167°F)    
Maximum Working Pressure:      
3500 psig (24 Mpa) @ 70°F derated with temperature  
525 psig (3.6 Mpa) @ 70° F derated with temperature    
Electronics CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Microprocessor based electronics  
Self-test diagnostics  
4-20 mA analog current loop output    
Adjustable relay mode, higher or lower than setpoint
Selectable temperature mode for relay outputs    
Adjustable set point delay timers    
Front panel lock-out via remote software  
Remote electronics available  
Input Power CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
12-24 VDC and 115-230 VAC, 50 to 60 Hz  
12-36 VDC    
Outputs CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Dual SPDT sealed relays, contacts rated @ 5 amps resistive 230 VAC or 24 VDC maximum    
Single SPST sealed relay    
Single SPDT sealed relay    
4-20 mA current loop - (Thermal Signal Scaleable)    
Power Consumption CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Power consumption - 4.8 watts maximum    
Power consumption - 6 watts maximum    
Power consumption - 2.4 watts maximum    
Heater Power:      
Field selectable to optimize switching performance & rangeability.  
Communications CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
MODBUS support  
RS-485  
User Interface CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Local interactive interface (via front panel)  
Remote interactive interface via software
(set-up / monitoring)
 
Visual indicators (LED's)
Area Classification CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Flameproof (hazardous location)  
General purpose    
Enclosure Cover CLASSIC
800
Series
BASIC+
400
Series
CMP
100
Series
Glass lens (flameproof) provides convenient viewing  
Blind cover (flameproof)  
Cover locking screw (lens & blind covers)