- With display and operation via keys, three display pages for temperature humidity and other parameters to show
- 4...20 mA analogue output, alarm relay connection, Modbus-RTU (RS-485)
- Extreme long-term stability, quick response time
- Sensor diagnostic with CS service software
- Suitable to measurement in granulate dryers, compressed refrigerating gases
- Extreme long-term stability, quick response time
- Sensor diagnostic with CS service software
- 4...20 mA analogue output, Modbus-RTU (RS-485)
- Suitable to measurement residual moisture, dew point after granulate driers in plastic industry and various gases
- PID controller
- 2 set points (SP), chosen by binary input
- Pressure measurement range: -250...2500 Pa
- Output: 0...10 V
- Input: NTC10, NTC20, Pt1000, Ni1000
- LCD screen
- Temperature compensation
- Allowed overpressure: 25 kPa
- Supply: 24 VDC/VAC
- Operating temperature: -20...+50°C
- Protection class: IP54
- PID controller
- Pressure measurement range: 0...2500 Pa / 0...7000 Pa
- Switchable between air flow and pressure measurement
- Output: 0...10 V / 4...20 mA
- Option: autozero function
- Allowed overpressure: 25 kPa
- Supply: 24 VDC
- Operating temperature: -20...+50°C
- Protection class: IP54
- PID controller
- Pressure measurement range: 0...2500 Pa
- Modbus RTU communication
- Control output: 0...10 V
- External input: 0...10 V / thermistor / binary
- LCD display
- Temperature compensation
- Allowed overpressure: 25 kPa
- Supply: 24 VDC
- Operating temperature: -20...+50°C
- Protection class: IP54
- Input:
- temperature:
- resistance thermometers: Pt100, Pt500, Pt1000
- thermocouples: J, K, N, E, R, S
- resistance: 400 ohm, 4000 ohm
- current: ± 20 mA
- voltage: 0…10 V, -10…60 mV
- temperature:
- Output: relay (4), analog (1), digital RS-485/MODBUS (1),
- Three-colour display - red, green and orange, programmable in three intervals of the measured value – facilitates the observation of measured value changes.
- digit height: 14 mm
- highlighted measuring unit
- Four alarm outputs with signaling on LED diodes operating in six different modes.
- Digital pulse counter - tachometer ECH4400
- Count inputs: 2 channels (max 50 kHz, 5…30 V pulses), can be selected as PNP or NPN input
- Counting frequency: (20, 50, 100, 500, 1000, 5000) Hz, (10, 20, 30, 40) kHz
- Control outputs: 2 relay NO / NC 250 V, 2 A
- SSR outputs: Open collector output (Max.: 30 VDC, 50 mA)
- RS485 Modbus communication interface (custom ordered)
- Power supply: 90…250 V AC; 10…30 V DC; 8…24 V AC (custom ordered)
- Auxiliary supply output: 12 VDC, max 50 mA
- Ambient temperature: 0…+50 °C
- Case protection: front panel IP65, rear panel IP20
- Modern, simple and user-friendly service
- Communication interfaces: RS-485 Modbus Slave, Modbus TCP Slave and optionally Ethernet
- FTP server (available in controller versions with Ethernet interface)
- Selection of PID parameters for any unit
- For easy programming and devices configuration, LUMEL offers one common LPCon software
- Parameter logging on SD card
Utilizing unique dual-sensing technology, the device combines electromagnetic induction with an integrated ultrasonic sensor to provide highly accurate detection of both liquid level and flow velocity. Specifically optimized for partially filled pipes, open channels, and gravity-fed systems, the unit achieves an outstanding accuracy of ±1–2% of the actual flow rate.
- Internal pipe diameter: DN80…DN600
- Flow velocity (min. / max.): 0,46…7,5 m/s
- Accuracy: ± 1…2 % of actual flow (depends on flow profile and level detection)
- Process Temperature: 0…+70 °C
- Coating materials: hard rubber
- Maximum working pressure: No pressure (gravity flow) or 10 bar if pipe is full
- Output signal: 2× pulse / flow switch (max. 400 Hz), 4 ... 20 mA, 1× RS485 interface (Modbus / M-Bus protocol), M-Bus, HART, Ethernet module (TCP/IP, integrated web server)
- An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
- Data archiving on a micro-SD card
- Process connections: flange
- Maximum ambient temperature: 55 °C
- Power supply: 24 V AC / DC, 230 V AC
- Protection class: IP68 for sensor, IP65-IP68 for transmitter
FLOW 55 datasheet [EN]
FLOW 38 MID version with certification, allowing the flow meter to be used for utility metering. FLOW 38 MID is certified for use with drinking water. The FLOW 38 MID electromagnetic flow rate meter is a precise measuring device designed to measure the flow of electrically conductive liquids. The electronic unit (display) can be connected directly to the body (rotatable up to 350° for convenient viewing). Various process connection versions are available. A wide selection of materials for the internal surfaces in contact with the process medium allows the device to be adapted to various liquids.
- Internal pipe diameter: DN10…DN400
- Flow velocity (min./max.): 0,1…12 m/s (R40, R50)
- Accuracy: 0.2% in the 1:100 range, 0.5% in the 1:200 range
- Maximum medium temperature depending on the inner coating: 150 ℃
- Coating materials: rubber, teflon, ceramic
- Maximum working pressure: up to 16 bar
- Output signal: pulse, 4-20 mA, RS485 (Modbus RTU/ M-bus)
- An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
- Process connections: Flange, Thread
- Maximum ambient temperature: 50 °C
- Power supply: 24 VAC/VDC, 110... 230 VAC
- Protection class: IP65, IP67, IP68
The FLOW 38 electromagnetic, bidirectional flow and flow rate meter is a precise measuring device designed to measure the flow of electrically conductive liquids. Due to the wide range of configurations available, this device is used in many industries. The electronic unit (display) can be connected directly to the body (rotatable up to 350° for convenient viewing) or connected via a cable up to 30 meters long. Various process connection versions are available. A wide selection of materials for the internal surfaces in contact with the process medium allows the device to be adapted to various liquids. FLOW 38 is certified for use with drinking water. There is also a version of the Flow38 with MID certification, allowing the flow meter to be used for utility metering.
- Internal pipe diameter: DN4-DN600
- Flow velocity - bidirectional (min./max.): 0.2…12 m/s
- Accuracy: 0.2% in the 1:100 range, 0.5% in the 1:200 range
- Maximum medium temperature depending on the inner coating: 150 ℃
- Coating materials: rubber, Rilsan, Teflon, ceramic
- Maximum working pressure: up to 100 bar
- Output signal: pulse, 4-20 mA, RS485 (Modbus RTU/ M-bus), Modbus TCP/ IP, HART
- An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
- Process connections: Flange, Sandwich, Food grade fittings (clamp), Thread
- Maximum ambient temperature: 55 °C
- Power supply: 24 VAC/VDC, 110... 230 VAC
- Protection class: IP65, IP67, IP68
The FLOW45 electromagnetic flowmeter is equipped with a lithium battery, so it does not require an external power supply. The device has high accuracy in terms of full flow rate. Before each measurement, automatic diagnostics of all functions and parts necessary for proper measurement are performed. The device has a built-in empty pipe test and if there is no full flow, it will invalidate the entire measurement, as well as assess the flow direction and record the appropriate data.
- Internal pipe diameter: DN10…DN200
- Flow velocity (min. / max.), bidirectional: 0,2…12 m/s (1/60)
- Accuracy: 1 % for 1…10 m/s
- Maximum medium temperature depending on the inner coating: 150 ℃
- Coating materials: rubber (hard, soft, drinking water certified), Teflon, ceramic, Rilsan
- Maximum working pressure: up to 100 bar
- Output signal: pulse, RS485
- GSM data transmission module
- Data archiving on a micro SD card
- Process connections: flange, thread, sandwich, food grade
- Maximum ambient temperature: 5…55 °C
- Power supply: replaceable lithium battery (last up to 5 years) / external (12 V DC, max. 500 mA)
- Protection class: IP65, IP67, IP68
- Analog inputs: 6 (0...10 VDC / 4...20 mA, configurable, isolated)
- Digital inputs: 4 (isolated)
- RS-485 input (up to 24 Modbus RTU registers)
- Memory: 70 000 values
- Ethernet connection
- Modbus RTU to Modbus TCP conversion
- Webserver
- Periodical upload of data logger file to a remote HTTP server
- HTTP Post, HTTP API
- SNMP alarms (up to 5 recipients)
- Operating temperature: -20...55 °C
- Warranty: 3 years
- Supply: 10...28 VDC
- Ethernet connection
- Analog inputs: 2 (0...10 VDC)
- Digital inputs: 2
- Relay outputs: 2 (NO/NC)
- 1-Wire input (up to 8 sensors)
- Memory: 70 000 values
- Modbus TCP/IP support
- Webserver
- XML/JSON, HTTP API commands
- SNMP alarms (up to 5 recipients)
- E-mail alarms (up to 5 recipients)
- Operating temperature: -20...55 °C
- Warranty: 3 years
- Supply: 10...28 VDC
- Ethernet connection
- Digital inputs: 1
- Relay outputs: 8 (NO/NC)
- Webserver
- XML and HTTP API commands
- E-mail alarms (up to 5 recipients), SMTP with TLS support
- SNMP alarms
- Operating temperature: -20...55 °C
- Warranty: 3 years
- Supply: 10...14 VDC
- Ethernet connection
- Modbus TCP/IP
- Digital inputs: 4
- 1-Wire input (up to 8 sensors)
- Analog inputs: 4 (0...60 VDC)
- Relay outputs: 4 (NO/NC)
- Configurable inputs
- Webserver
- HTTP Post, HTTP API
- E-mail alarms (up to 5 recipients), SMT with TLS support
- Operating temperature: -20...55 °C
- Warranty: 3 years
- Supply: 10...28 VDC
- Stable long-life electrochemical gas sensor
- Range 0...10 / 0...200 / 0...1500 ppm C2H4
- Resolution 0,1 / 1 / 5 ppm C2H4
- Outputs 2 switches, 2 x 4...20 mA / 0...10 V, RS-485
- Stable long-life electrochemical gas sensor
- Range 0...10 / 0...200 / 0...1500 ppm C2H4
- Resolution 0,1 / 1 / 5 ppm C2H4
- Outputs 2 x 4...20 mA / 0...10 V, RS-485
- Attached or remote sensor
- Electrochemical gas sensor
- Range: 0...10 / 0...200 / 0...1500 ppm C2H4
- Resolution: 0,1 / 1 / 1 ppm C2H4
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST) / LCD indicator
- Option: remote sensor (default cable length is 3 m)
- Operating temperature: -20...+50 °C
- Supply: 11...30 VDC / 24 VAC or 90...265 VAC
- Electrochemical gas sensor
- Range: 0...20 / 0...100 ppm C2H4O
- Resolution: 0,1 / 1 / 5 ppm C2H4O
- Analog output: 2 x 4...20 mA / 0a...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST) / LCD indicator
- Option: remote sensor (default cable length is 3 m)
- Operating temperature: -20...+50 °C
- Supply: 11...30 VDC / 24 VAC or 90...265 VAC
- Suitable for ATEX Zones 2 and 22
- Electrochemical gas sensor
- Range: 0...100, 0...300, 0...1000, 0...5000 ppm NH3
- Resolution: 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+50 °C
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life pellistor (catalytic bead) sensor
- Range: 0...15% vol. (0…100% LEL)
- Resolution: 0.1% vol. or 1% LEL
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -10...+50 °C
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life photoacoustic or optical NDIR sensor
- Range: 0...10 000 ppm / 0...40 000 ppm / 0...5 % vol (0...100 % on request)
- Resolution: 1 ppm / 10 ppm / 0.01 % vol. CO2
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+60 °C; 0….100 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range: 0...300 or 0...1000 ppm
- Resolution: 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -20...+50 °C; 0….90 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Detected gases: hydrogen, methane, acetylene, propane, butane
- Default calibration: methane CH4
- Stable long-life metal-oxide / pellistor sensor
- Range: 0...100% LEL
- Resolution: 0,1 / 1 % LEL
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+70 °C; ≤ 95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range: 0...10 / 0...200 / 0...1500 ppm
- Resolution: 0,1 / 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+50 °C; up to 100 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Detectable gases: R-12, R-123, R-125, R-134a, R-143, R-22, R-404a, R-407c, R-410a, R-507, R-514a, R-1234ze and similar
- Stable long-life metal-oxide sensor
- Range: 0…1000 / 0…2500 ppm
- Resolution: 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -30...+60 °C; < 95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range: 0...100 ppm, 0...2000 ppm H2S
- Resolution: 1 ppm H2S
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+50 °C; 15…90 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range: 0…250 ppm
- Resolution: 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -30...+50 °C; 15…90 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life optical NDIR sensor
- Range: 0…1000 ppm
- Resolution: 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -20...+50 °C; 0…95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life electrochemical sensor
- Range: 0...25 % vol O2
- Resolution: 0,01 % vol O2
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+60 °C; 5…95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Highly sensitive Photo Ionization Detector (PID) sensor
- Detectable gases: VOCs (acetone, ethanol, toluene, xylene etc.)
- Default calibration: Isobutylene
- Range: 0…40 / 0…200 ppm isobutylene
- Resolution: 0,01 / 1 ppm
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+65 °C; 0…95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
- Suitable for ATEX Zones 2 and 22
- Stable long-life metal-oxide sensor
- Detectable gases: acetone, ethanol, toluene, xylene etc.
- Default calibration: toluene
- Range: 0...1000 ppm (toxic range) / 0...100% LEL (flammable range)
- Resolution: 1 ppm for toxic ranges / 0,1 % LEL for flammable range
- Analog output: 2 x 4...20 mA / 0...10 V (user-settable)
- Digital output: RS-485 (Modbus RTU protocol)
- Option: relay output (2 x SPST)
- Operating temperature: -40...+70 °C; < 95 % RH; 0,9…1,1 atm.
- Supply: 12...36 VDC (default), 24 VAC or 230 VAC
Thermal mass flow sensor for compressed air and gases VA 500
- 4...20 mA, pulse and a Modbus RTU (RS 485) interface as standard
- Optional: Interfaces such as Modbus TCP (Ethernet), PoE, M-Bus
- Optional: Bi-directional measurement
- Pressure tight up to 50 bar
- Temperature range up to 110 °C
- Protection class IP65
- Suitable for gas velocities up to 224 Nm/s
- Integrated display for showing the measured values
- Can be used from 1/2" up to 40", larger diameters on request
- Easy installation under pressure
- Settings can be changed via the display
- Main counter reading can be reset via the display
- Calorimetric measuring principle
- Units freely selectable via keys at the display
- Display shows 2 values at the same time, twistable by 180 ° degree
- Integrated Modbus interface enables connection control systems, SCADA
- M-Bus (optional)
- Analog output 4...20 mA
- Pulse output (galvanic isolation)
- High measuring accuracy (ideal for leakage measurement)
Fluid level alarm Elcluwo 111S, designed for usage with conductometric probes for fluid level alarm and control.
Technical specifications
- One or more level control
- Switch output 2A, 250 VAC
- Probe supply from isolated ~12 V source
- Adjustable sensitivity
- Available modes – flooding, drainage, dry flow, overflooding
- Pump or valve control
- Designed for work with various probes: SKS 401, 201, 101, SW-01 and others
- Mounting on standard rail (35 mm)
Fluid level alarm Elcluwo 112S, designed for usage with conductometric probes for fluid level alarm and control, depth pump protection.
Technical specifications
- One or more level control
- Switch outputs: switching + NO 2 A / 250 VAC
- Probe supply from isolated ~12 V source
- Adjustable sensitivity
- Available modes – flooding, drainage, dry flow, overflooding
- Pump or valve control
- Designed for work with various probes: SKS 401, 201, 101, SW-01 and others
- Mounting on standard rail (35 mm)
- One or more level control
- Switch outputs: switching + 3 x NO 2 A / 250 VAC
- Probes: galvanically isolated, max. 2mA, 5V~ 100 Hz
- Adjustable sensitivity
- Available modes – flooding, drainage, dry flow, overflooding
- Pump or valve control
- Designed for work with various probes: SKS 401, 201, 101, SW-01 and others
- Mounting on standard rail (35 mm)
- Supply: 230 VAC / 24 VAC
- One or two level control
- Switch outputs – switching + 5 x NO, 2A / 250 VAC
- Probes: galvanically isolated, max. 2uA, 5V~ 100 Hz
- Adjustable sensitivity
- Available modes – filling, draining, dry flow, overflow, two/three pump control and others
- Valve or gate control
- Adapted for work with various probes – SKS 401, 201, 101, SW-01 and others
- Mounted on standard rail (35 mm)
- Supply: 230 VAC / 24 VAC
- Gas measuring, monitoring and warning controller (Multi-Sensor-Controller MSC) for reliable detection of combustible, toxic and refrigerant gases
- Flexible control: 3 relays (SPDT, potential-free, 250 V)
- Intelligent Communication: RS-485 interface with DGC and Modbus protocol
- Precise signal transmission: 4–20 mA input and output for seamless system integration, up to 3 sensors including remote
- Stationary gas detection device PX for continuous monitoring of ambient air for use in potentially explosive atmospheres in zones 1 and 2
- Certified safety: ATEX, IECEx and SIL2 certified for worldwide use in hazardous areas
- Flexible communication: 4–20 mA, RS-485 interface, DGC and Modbus for versatile integration
- Extended operating range: Operation from -40 °C to +60 °C with alarm and fault signal relay
- GA-1 is designed for grease detection in separators, basins and tanks
- Easy to install, does not need calibration
- Switch output
- Remote monitoring capability
- Wall-mounted
- Supply: 230 VAC, 50/60 Hz
- GA-2 is designed for grease detection in separators, basins and tanks
- Two sensors – one is for grease detection, other – for blockage control
- Easy to install, does not need calibration
- 2 switch outputs
- Remote monitoring capability
- Wall-mounted
- Supply: 230 VAC, 50/60 Hz
- Digital inputs: 2
- 1-Wire input (up to 8 sensors)
- RS-485 input (up to 8 sensors)
- Analog inputs: 4 (2 x 0...10 VDC, 2 x 0...10 VDC / 4...20 mA, WEB control)
- Relay outputs: 4 (NO/NC)
- Setup via USB or SMS
- Data logger for up to 52 000 records
- Webserver
- Periodical upload of data logger file to a remote HTTP server
- HTTP Post, HTTP API
- SMS alarms (up to 5 numbers)
- E-mail alarms (up to 5 recipients), SMT with TLS support
- Operating temperature: -20...55 °C
- Warranty: 3 years
- Supply: 10...24 VDC
- Digital inputs: 2
- 1-Wire input (up to 4 sensors)
- Analog inputs: 2 (0...60 VDC)
- Relay outputs: 2 (NO/NC)
- Setup via USB or SMS
- Webserver
- HTTP Post, HTTP API
- SMS alarms (up to 5 numbers)
- E-mail alarms (up to 5 recipients), SMTP with TLS support
- Operating temperature: 0...40 °C
- Warranty: 3 years
- Supply: 10...28 VDC
- Used with grain temperature sensor cables GWSL 1100, GWSL 2100 and spear sensors GWTL-R
- Cable length up to 200 m (including the temperature cables)
- Up to 32 values of temperatures are shown in cycle
- Weight: 240 g (with batteries)
- Case material: ABS
- Supply: 2 x AA (battery life circa 1 year)
- Operating temperature: -20...+40 °C
- Communicates with devices supporting HART and LHP interfaces
- Supports universal, common commands
- HART connector: BNC
- Supply: 9 V accumulator (charged via USB)
- Operating temperature: -20...+50 °C
- Operating humidity: 0...80 % RH
- Protection class: IP40
- High level detection
- Oil on water surface detection
- Designed for usage in separators, basins and tanks
- Easy to install, does not need calibration
- Reliable long-term se in harshest conditions
- Acoustic and visual alarms
- 2 switch outputs
- ATEX certified
- Wall-mounted
- Supply: 230 VAC, 50/60 Hz






