OMRON – 1/32 DIN Digital Panel Meter for Downsizing Equipment and Control Panels (Model: K3GN)

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Supply
voltage
Input type Output type Model
Judgement output Data transmission output
24 VDC DC voltage,
DC current,
or NPN input
2 relay contact outputs
(SPST-NO)
None K3GN-NDC 24 VDC
RS-485 K3GN-NDC-FLK 24 VDC
DC current
(0 to 20 mA, 4 to 20 mA)
K3GN-NDC-L1 24 VDC
DC voltage
(0 to 5 V, 1 to 5 V, 0 to 10 V)
K3GN-NDC-L2 24 VDC
2 relay contact outputs
(SPST-NO)
Normally energized relays
*
None K3GN-NDC-400 24 VDC
RS-485 K3GN-NDC-FLK-400 24 VDC
DC current
(0 to 20 mA, 4 to 20 mA)
K3GN-NDC-L1-400 24 VDC
DC voltage
(0 to 5 V, 1 to 5 V, 0 to 10 V)
K3GN-NDC-L2-400 24 VDC
3 transistor outputs
(NPN open collector)
None K3GN-NDT1 24 VDC
RS-485 K3GN-NDT1-FLK 24 VDC
DC current
(0 to 20 mA, 4 to 20 mA)
K3GN-NDT1-L1 24 VDC
DC voltage
(0 to 5 V, 1 to 5 V, 0 to 10 V)
K3GN-NDT1-L2 24 VDC
DC voltage,
DC current,
or PNP input
2 relay contact outputs
(SPST-NO)
None K3GN-PDC 24 VDC
RS-485 K3GN-PDC-FLK 24 VDC
3 transistor outputs
(PNP open collector)
None K3GN-PDT2 24 VDC
RS-485 K3GN-PDT2-FLK 24 VDC

* Refer to Data Sheet for information on models with normally energized relays.

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, Acceleration: 50 m/s2 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. 142
EMC (EMI) EN 61326 Industry
Emission Enclosure: EN55011 Group 1 class A
(EMS) EN 61326 Industry
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: 2 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

K3GN Specifications 4

Note: The shaded ranges indicate default settings.

Input/Output Ratings

Relay Contact Output (Incorporating G6K Relays)

Item Resistive load (cosΦ = 1)
Rated load 1 A at 30 VDC
Rated through current 1 A max. (at COM terminal)
Max. contact voltage 60 VDC
Max. contact current 1 A (at COM terminal)
Max. switching capacity 30 VA
Min. permissible load
(P level, reference value)
10 mV, 10 μA
Mechanical life 50,000,000 operations min. (at a switching frequency of 36,000 operations/hr)
Electrical life
(at an ambient temperature of 23°C)
100,000 operations min. (at the rated load with a switching frequency of 1,800 operations/hr)

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)

Caution: All units are in millimeters unless otherwise indicated.

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.

Resource & Download

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