Panasonic KT4 series Instruction Manual page 18

Thermocouple and RTD input
Input
K，T
Pt100
JPt100
Indication range and Control range for the thermocouple inputs except the above:
[Input range low limit value – 50
DC current and voltage input
Indication range : [Scaling low limit value – Scaling span x 1%] to [Scaling high limit value
Control range
DC input disconnection: When DC input is disconnected, PV display flashes "
[Burnout]: When the thermocouple or RTD input is burnt out, OUT1 is turned OFF (for DC current
output type, OUT1 low limit value) and PV display flashes "
[Self-diagnosis]: The CPU is monitored by a watchdog timer, and when an abnormal status is
[Automatic cold junction temperature compensation] (Only thermocouple input type)
This detects the temperature at the connecting terminal between the thermocouple and instrument,
and always keeps it set to the same status as when the reference junction is located at 0
[Power failure countermeasure]:
The setting data is backed up in the non-volatile memory.
[Warm-up indication]
After the p ower supply to the instrument is
temperature unit are indicated on the PV display and input range high limit value is indicated on
the SV display for 3 seconds.
For DC current and voltage inputs, the scaling high limit value is indicated.
Accessories included: Screw type mounting bracket 1 set, Instruction manual 1 copy
Accessories sold separately: Terminal cover (AKT4801) 1 piece, 50
10.2 Optional specifications
Alarm 2 (A2)
If A2 and Heater burnout alarm are applied together, they utilize common output terminals.
Action
Hysteresis
Output
Heater burnout alarm (including sensor burnout alarm)
Watches the heater current with CT (current transformer), and detects the burnout.
This alarm is also activated when indication is overscale and underscale.
(To detect Heater burnout, a CT for 50A can also be used for 5A, 10A and 20A ratings, however, this
is not suitable for small ampere ratings due to a low degree of accuracy. For a 20A rating or less, use
a CT designated for 20A.)
This option cannot be applied to DC current output type.
If A2 and Heater burnout alarm are applied together, they utilize common output terminals.
Rating
Setting range
Setting accuracy : Within
Action
Output
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Input range
–199.9 to 400.0
–199.9 to 750.0
–199.9 to 850.0
–200 to 850
–199.9 to 999.9
–300 to 1500
–199.9 to 500.0
–200 to 500
–199.9 to 900.0
–300 to 900
(100 )] to [input range high limit value + 50
+Scaling span x 10%]
(If the input value is out of the range –1999 to 9999, the PV display flashes
" " or "
: [Scaling low limit value – Scaling span x 1%] to [Scaling high limit value
+Scaling span x 10%]
20mA DC and 1 to 5V DC inputs, and "
For 0 to 20mA DC, 0 to 5V DC and 0 to 10V DC inputs, the PV display
indicates the value corresponding with 0mA or 0V input.
found on the CPU, the controller is switched to warm-up status.
CT (Current transformer); For rating 5A, 10A, 20A (AKT4815)
: ON/OFF action
: 0.1 to 100.0 ( ), or 1 to 1000
: Relay contact, 1a
Control capacity, 3A 250V AC (Resistive load)
Electrical life, 100,000 cycles
: 5A, 10A, 20A, 50A (Must be specified)
: 5A, 0.0 to 5.0A (Off when set to 0.0)
20A, 0.0 to 20.0A (Off when set to 0.0) 50A, 0.0 to 50.0A (Off when set to 0.0)
5% of the rated value
: ON/OFF action
: Relay contact 1a
Control capacity, 3A 250V AC (resistive load)
Electrical life, 100,000 cycles
Indication range
–199.9 to 450.0
–199.9 to 850.0
–199.9 to 900.0
–210 to 900
–199.9 to 999.9 –211.0 to 1099.9
–318 to 1600
–199.9 to 550.0
–207 to 550
–199.9 to 999.9
–312 to 1000
")
turned on, the sensor input character an d
For rating 50A,
10A, 0.0 to 10.0A (Off when set to 0.0)
Control range
–205.0 to 450.0
–209.0 to 850.0
–210.0 to 900.0
–210 to 900
–318 to 1600
–206.0 to 550.0
–207 to 550
–211.0 to 999.9
–312 to 1000
(100 )]
" for 4 to
" for 0 to 1V DC input.
".
1 piece
(AKT4816) 1 piece
shunt resistor (AKT4810) 1 piece
(32 ).