60
Accessories included
:
Mounting frame
1 piece
Rubber gasket (Front mounted to the KT4H/B)
1 piece
Installation instructions (A3 unfolded, English/Japanese)
1 copy
Communication installation instructions (When Serial communication option is added)
1 copy
CT (Current transformer)
CT1 (AKT4815) (When Heater burnout alarm Single phase 20A option is added)
1piece
CT2 (AKT4816) (When Heater burnout alarm Single phase 50A option is added)
1 piece
CT1 (AKT4815) (When Heater burnout alarm 3-phase 20A option is added)
2 pieces
CT2 (AKT4816) (When Heater burnout alarm 3-phase 50A option is added)
2 pieces
Accessories sold separately
: Terminal cover (AKT4H801)
50
shunt resistor for DC current input (AKT4810)
Tool cable (AKT4H820)
13.2 Optional specifications
Alarm 2 output
If the Alarm 2 option is added, Heating/Cooling control option cannot be added.
If the Alarm 2 option and Heater burnout alarm option are added, they utilize common output terminals.
Action
: ON/OFF action
Hysteresis: 0.1 to 100.0
( ), (DC voltage, current input: 1 to 1000) (Default: 1.0 )
Output
: Relay contact, 1a Control capacity, 3A 250V AC (Resistive load) Electrical life, 100,000 cycles
Heater burnout alarm (including sensor burnout alarm)
Monitors heater current with CT (current transformer), and detects burnout.
This alarm is also activated when indication is overscale and underscale.
This option cannot be added to a DC current output type.
If this option is added, Heating/Cooling control option cannot be added.
If Heater burnout alarm option and Alarm 2 option are added, they utilize common output terminals.
Rated current
: Single phase 20A, Single phase 50A, 3-phase 20A, 3-phase 50A (Must be specified)
Setting range
: Rated current 20A: 0.0 to 20.0A (Off when set to 0.0)
Rated current 50A: 0.0 to 50.0A (Off when set to 0.0)
Setting accuracy: Within
5% of the rated value
Action
: ON/OFF action
Output
: Relay contact, 1a Control capacity, 3A 250V AC (resistive load)
Electrical life, 100,000 cycles
Heating/Cooling control (OUT2)
If this option is added, Alarm 2 option and Heater burnout alarm option cannot be added.
The specification of Heating side is the same as that of OUT1.
OUT2 proportional band: 0.0 to 10.0 times OUT1 proportional band (ON/OFF action when set to 0.0)
OUT2 integral time
: The same as that of OUT1.
OUT2 derivative time
: The same as that of OUT1.
OUT2 proportional cycle: 1 to 120 seconds (Default: 30sec for Relay contact, 3sec for Non-contact voltage)
Overlap band/Dead band:
Thermocouple, RTD input
: -100.0 to 100.0
( )
DC current, DC voltage input: -1000 to 1000 (The placement of the decimal point follows the selection.)
OUT2 ON/OFF action hysteresis:
Thermocouple, RTD input
: 0.1 to 100.0
( ) (Default: 1.0 )
DC current, DC voltage input: 1 to 1000 (The placement of the decimal point follows the selection.)
OUT2 high limit: 0 to 100% (Default: 100%)
OUT2 low limit : 0 to 100% (Default: 0%)
OUT2 action mode selection:
One cooling action can be selected from Air cooling (linear characteristic), Oil cooling (1.5th power of
the linear characteristic) and Water cooling (2nd power of the linear characteristic) by key.
Output: Relay contact 1a,
Control capacity: 3A 250V AC (resistive load)
Electrical life, 100,000 cycles
Non-contact voltage (for SSR drive) 12V DC 15%
Max. 40mA (short circuit protected)
