K3TF

Digital Panel Meter

K3TF

Easy-to-use, Low-cost Digital Panel Meter that Accepts AC Input

* Information in this page is a reference that you created on the basis of information in the product catalog before the end of production, may be different from the current situation, such as goods for / supported standards options / price / features of the product. Before using, please check the compatibility and safety system.

last update: April 4, 2013

Ratings

Supply voltage	100 to 120 VAC (50/60 Hz); 200 to 240 VAC (50/60 Hz)
Operating voltage range	-15% to +10% of supply voltage
Power consumption	4 VA (at max. load)
Insulation resistance	10 MΩ min. (at 500 VDC) between external terminal and case
Dielectric strength	2,000 VAC min. for 1 min between input terminal and power supply 2,000 VAC min. for 1 min between external terminal and case
Noise immunity	±1,500 V on power supply terminals in normal or common mode
Vibration resistance	Malfunction: 10 to 55 Hz, 0.5-mm single amplitude for 10 min each in X, Y, and Z directions Destruction: 10 to 55 Hz, 0.75-mm single amplitude for 2 hrs each in X, Y, and Z directions
Shock resistance	Malfunction: 98 m/s² for 3 times each in 6 directions Destruction: 294 m/s² for 3 times each in 6 directions
Ambient temperature	Operating: -10° to 55°C (with no icing) Storage: -20° to 65°C (with no icing)
Ambient humidity	Operating: 35% to 85% (with no condensation)
Ambient operating atmosphere	No corrosive gas
EMC	(EMI) EN61326+A1 Industry Emission Enclosure: CISPR 11 Group 1 class A: CISRP16-1/-2 Emission AC Mains: CISPR 11 Group 1 class A: CISRP16-1/-2 (EMS) EN61326+A1 Industry Immunity ESD: EN61000-4-2: 4 kV contact discharge (level 2) 8 kV air discharge (level 3) Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated,80 MHz to 1 GHz) (level 3) Immunity Fast Transient Noise: EN61000-4-4: 2 kV (power line) (level 3) Immunity Burst Noise: 1 kV line to line (I/O signal line) Immunity Surge: EN61000-4-5: 1 kV line to line 2 kV line to ground (power line) Immunity Conducted Disturbance EN61000-4-6: 3 V (0.15 to 80 MHz) (level 2) Immunity Voltage Dip/Interrupting EN61000-4-11: 0.5 cycles, 0, 180°, 100% (rated voltage)
Approved standard	UL508,CSA22.2; Conforms to EN61326+A1, EN61010-1 (IEC61010-1) Conforms to VDE0106/P100 (finger protection) when the terminal cover is mounted.

Note: The K3TF-V8[][] and K3TF-V9[][] do not conform to CE marking standards.

Characteristics

Input signal	AC voltage/current
A/D conversion method	Double integral method
Root-mean-square value indication	Root-mean-square value of half-wave rectified current detected
Sampling period	2.5 times/s
Display refresh period	2.5 times/s
Max. displayed digits	3 1/2 digits (1999)
Display	7-segment red LED
Decimal point display position	Selected with slide switch *1
Overflow display	Overflow: 1[][][]
Zero suppression	Not supported.
External control	Process value hold (terminals on rear panel short-circuited)
Degree of protection	Front panel: IEC IP51 *2 Case: IEC IP20 Terminals: IEC IP00

*1. Only for models with signal monitor.
*2. IP51 is maintained when the water-resistive soft cover and bracket are used. IP50 will be, however, maintained
without these water-resistive accessories.

Measuring Ranges

Monitor	Input range	Measuring range	Max. resolution	Input impedance	Accuracy	Max. permissible load
Line monitor	AC voltage	0 to 199.9 V	100 mV	10 MΩ	±0.3%rdg ±1 digit *1	500 V
Line monitor	AC voltage	0 to 400 V	1 V	10 MΩ	±0.3%rdg ±1 digit	500 V
Signal monitor	AC voltage	0 to 199.9 mV	100 μV	10 MΩ	±0.3%rdg ±1 digit	250 V
		0 to 1.999 V	1 mV	10 MΩ	±0.3%rdg ±1 digit	250 V
		0 to 19.99 V	10 mV	1 MΩ	±0.3%rdg ±1 digit	250 V
	AC current	0 to 1.999 mA	1 μA	100 Ω	±0.5%rdg ±1 digit	50 mA
		0 to 19.99 mA	10 μA	10 Ω	±0.5%rdg ±1 digit	150 mA
		0 to 199.9 mA	100 μA	1 Ω	±0.5%rdg ±1 digit	500 mA
		0 to 1.999 A	1 mA	0.1 Ω	±0.5%rdg ±1 digit	3A

*1. With 100% input. ±0.3% FS±1 digit when the input is less than 35% FS.
*2. The above accuracy is at an input frequency range of 40 Hz to 1 kHz and an ambient temperature of 23±5°C.
*3. A large error will result if a signal that is not a sine wave is used (e.g., a signal from thyristor control).

last update: April 4, 2013

Product Category

Control Components
- Digital Panel Indicators
  - Discontinued
    - K3TF

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