Omron, K3GN Series

Compact size: 48 x 24 x 82 (W x H x D).
Multi-input compatible: DC voltage/current, rotary pulse.
Two display colors (switchable): green/red.
Selectable outputs.
CE marking and UL/CSA approval.
Splash-proof construction (NEMA4X: equivalent to IP66).

Ratings

Item		K3GN-ND With DC voltage, DC current, and NPN input	K3GN-PD With DC voltage, DC current, and PNP input
Supply voltage		24 VDC
Operating voltage range		85% to 110% of the rated supply voltage
Power consumption (at max. load) *1		2.5 W max. (at max. DC load with all indicators lit)
Input signal		DC voltage, DC current, no-voltage contact, open collector
DC voltage/ current input	A/D conversion	Double integral method
Pulse signal input	Pulse measurement method	Periodic measurement method
External power supply		None
Control input		Present value hold or forced zero (selectable) *2
Outputs (Outputs depend on the model.)	Relay contact output	1 A, 30 VDC (resistive load), mechanical life: 50,000,000 operations min., electrical life: 100,000 operations min.
	Transistor output	Max. load voltage: 24 VDC, Max. load current: 50 mA, Leakage current: 100 μ A max.
	Communications output	RS-485 (2-wire, half-duplex)
	Linear output	DC current (0 to 20 mA DC, 4 to 20 mA: Load: 500 Ω max., Resolution: Approx. 10,000) DC voltage (0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC: Load: 5k Ω min., Resolution: Approx. 10,000)	---
Display		Negative LCD (backlit LCD) display 7-segment digital display, character height: 7.0 mm, and single illuminated display
Main functions		Scaling, prescaling, teaching, average processing, forced zero, display color selection, output type selection, key protection, startup compensation timer, hysteresis
Ambient temperature		Operating: -10°C to 55°C (with no condensation or icing) Storage: -25°C to 65°C (with no condensation or icing)
Ambient humidity		Operating: 25% to 85%
Altitude		2,000 m max.
Accessories		Rubber packing, fixture, operation manual

*1. A control power supply capacity greater than the rated capacity is required when the Digital Panel Meter is turned ON. Do not forget to take this into consideration when using several Digital Panel Meters. When power is supplied, all indicators will light and outputs will be OFF. When using startup compensation time operation, the display will read "00000" and all outputs will be OFF.
*2. Enabled only when using DC voltage/current input. (Min.time for control signal input: 80 ms)

Characteristics

Item		K3GN-ND With DC voltage, DC current, and NPN input	K3GN-PD With DC voltage, DC current, and PNP input
Input signal		DC voltage/current (4 to 20 mA, 1 to 5 V, ±5 V, ±10 V) No-voltage contact (30 Hz max. with ON/OFF pulse width of 16 ms min.) Open collector (5 kHz max. with ON/OFF pulse width of 90 μs min.)
Displayable range		5 digits (-19999 to 99999)
Sampling period		250 ms
Display refresh period		Sampling period: 250 ms (at 4 Hz min.), 250 × Number of averaging times (ms) (with average processing selected), Input pulse cycle (at less than 4 Hz): Input pulse cycle × Number of averaging times
Comparative output response time (transistor outputs)		750 ms max. (transistor output) (The time required for the judgment output to be output if the input signal rapidly changes from 15% to 95% or from 95% to 15%.)
Linear output response time		750 ms max. (The time required for the analog output to be output if the output signal rapidly changes from 15% to 95% or from 95% to 15%.)	---
Insulation resistance		20 MΩ min. (at 500 VDC) between external terminal and case. Insulation provided between inputs, outputs, and power supply.
Dielectric strength		1,000 VAC for 1 min between external terminal and case.
Noise immunity		±480 V on power supply terminals in normal mode, ±1,500 V in common mode, ±1 μs, or 100 ns for square-wave noise with 1 ns
Vibration resistance		Vibration frequency: 10 to 55 Hz, 0.35-mm half amplitude for 10 min each in X, Y, and Z directions
Shock resistance		Models with transistor outputs: 150 m/s² three times each in 3 axes, 6 directions Models with contact outputs: 100 m/s² three times each in 3 axes, 6 directions
Weight		Approx. 100 g (Main Unit only)
Degree of protection	Front panel	NEMA4X for indoor use (equivalent to IP66),
	Rear case	IP20
	Terminals	IP00 and finger protection (VDE0106/100)
Memory protection		Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
Approved standards		UL508, CSA C22.2 No. 61010-1
EMC		(EMI) EN 61326-1 Industrial electromagnetic environment Emission Enclosure: EN55011 Group 1 class A (EMS) EN 61326-1 Industrial electromagnetic environment Immunity ESD: EN 61000-4-2: 4 kV (contact discharge), 8 kV (air discharge) Immunity RF-interference: EN 61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz) Immunity Fast Transient Noise: EN 61000-4-4: 2 kV (power line) Immunity Burst Noise: 1 kV line to line (I/O signal line) Immunity Surge: EN 61000-4-5: 1 kV line to ground (power line) Immunity Conducted Disturbance EN 61000-4-6: 3 V (0.15 to 80 MHz) Immunity Power Frequency Magnetic EN 61000-4-8: 30 A/m (50 Hz) continuous time

Input Ranges: Measurement Range and Accuracy

Note: The shaded ranges indicate default settings.

Input/Output Ratings

Relay Contact Output

Item	Resistive load (cosφ = 1)
Rated load	1 A at 30 VDC
Rated through current	1 A max. (at COM terminal)
Min. permissible load (P level, reference value)	10 mV, 10 μA
Mechanical life	50,000,000 operations min.
Electrical life	100,000 operations min.

Transistor Output

Rated load voltage	24 VDC
Max. load current	50 mA
Leakage current	100 μA max.

Communications Specifications

Item		RS-485
Communications method		2-wire, half-duplex
Synchronization method		Start-stop synchronization
Baud rate		1,200/2,400/4,800/9,600/19,200 bps
Transmission code		ASCII
Communications	Reading/Writing to the K3GN	Read/write comparative set values, read/write scaling values, enable/disable the writing of data through communications, forced-zero control, and other data.

Linear Output

Item	0 to 20 mA	4 to 20 mA	0 to 5 V	1 to 5 V	0 to 10 V
Permissible load impedance	500 Ω max.		5 kΩ min.
Resolution	Approx. 10,000
Output error	±0.5% full scale		±0.5 full scale. ±0.15 V at 1 V or less (no output for 0 or less)

K3GN

Mounting Recommended Panel Thickness 1 to 5 mm.
Mount the product horizontally.

For installation, insert the K3GN panel into the rectangular hole, insert the adaptor from the rear, and push it in to reduce the gap between the panel surface and the adaptor.
Secure the Unit with the screws.
For water-proof installation, insert the rubber gasket onto the body of the K3GN.
If multiple mounted Units are used, make sure the ambient temperature for the K3GN does not exceed the specified temperature.

TITLE	DOCUMENT TYPE	SIZE
K3GN	Catalog	1417 KB
K3GN 1/32 DIN digital panel meter	Manual	1488 KB
K3GN Digital panel meter instruction sheet	Manual	6507 KB
K3GN digital panel meter former model instruction manual	Manual	955 KB