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* The only two-in-one current/voltage detector designed for electrical testing
* Non-Contact AC Voltage detection
from 12V to 600VAC
* Non-Contact AC Current detection
from 200mA to 1000A
* Sensitivity adjustments to increase or
reduce sensor trigger threshold
* Current sensor detects current flow through shielded wires, conduit, and metal circuit breaker/junction boxes
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* Non-contact AC Current range
is from 200mA to 1000A
* Locates current flow even where
voltage detectors cannot work
* Detects through shielded wires, conduit, and metal circuit breaker or junction boxes
* Sensitivity adjustment for locating wires/conduit through walls
* Audible and visible indication
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Reliable fire and system protection:
Differential current monitor type B with pre-warning function, measuring range from10 mA to 3 A.
Early detection of insulation faults can prevent failure of complete electrical plants. Fault current monitoring by measuring differential current is the ideal method for this application. The monitoring requirement for today’s supply systems get more and more complex. Electronic control of drives, switched power supplies and chargers or fluorescent lamps with electronic ballast units can create DC fault currents in the case of earth faults. Standard differential current monitors do not detect this type of faults.
Type B differential current monitor DOLD varimeter IP5883 detects DC and AC fault currents in grounded voltage systems. The measurement is done by an external current transformer.
Contrary to RCD units, IP5883 does not disconnect the mains immediately but signals the fault. The unit includes an easy to read LED bar indicating the fault current and LEDs for operation, pre-alarm and alarm. The measuring range is 10 mA to 3 A. Additional features: broken wire detection, adjustable pre-alarm and test function. This varimeter offers advanced information for specific and cost effective maintenance BEFORE the plant breaks down.
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The RCMS system consists of one or several RCMS460-D / -L or RCMS490-D / -L residual current evaluators, which are able to detect and evaluate fault, residual and operating currents in earthed power supplies via the associated measuring current transformers. The maximum voltage of the system to be monitored depends on the nominal insulation voltage of the measuring current transformers used in case of busbar systems, or on the cables or conductors that are routed through.
Closed W...AB series measuring current transformers are required to measure AC /DC sensitive residual currents (0...2000 Hz). Six W...AB series measuring current transformers require one AN420 power supply unit. W... (closed), WR... (rectangular) and WS... (split-core) series measuring current transformers are used for alternating and pulsating currents (42...2000 Hz).
The measuring current transformer series can be used in any combination with the measuring channels of the evaluators. Each RCMS460-D / -L and RCMS490-D / -L utilizes 12 measuring channels. Up to 90 RCMS evaluators can be connected via a BMS bus (RS-485 interface with BMS protocol), thereby up to 1080 measuring channels (sub-circuits) can be monitored.
If this product is to be used for personnel, fire or plant protection, the frequency response can be set accordingly. The measured currents can be analyzed for harmonics.
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The AC and pulsed DC sensitive residual current monitor RCMA420-D (Type A) from Bender is designed for fault and residual current monitoring in earthed power supply systems (TN and TT systems) where an alarm is to be activated in the event of a fault, but disconnection must be prevented. In addition, the device can be used to monitor the current in single conductors, such as PE conductors, N-PE connections and PE-PAS connections. Due to the use of measuring current transformers, the device is nearly independent of the load current and the nominal voltage of the system.
The response value can be adjusted in the range of 10...500 mA. When the prewarning level is reached (50% to 100% of the response value), an alarm message is generated. This information achieved sufficiently well in advance can avoid unexpected disconnections and costly downtimes.
Typical application fields are: Residual current monitoring in earthed two, three or four conductor systems; construction site equipment; current monitoring of single conductors de-energized under normal conditions; socket-outlet circuits for devices which are operated unattended for a long time and which may not fail; alarm systems; safety devices.
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The CT224 consists of a 12-Channel Temperature Monitor and MincoSoft™ CT224 Software. It is the next generation in temperature monitoring equipment from Minco designed to meet the needs of electric machinery protection. The 12-channel scanning capability, standard RS485/RS232 interface and Windows-compatible software utility for system configuration and data logging provide overtemperature and undertemperature protection and critical feedback to safeguard expensive machinery.
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Multi-funcitonal Thermocouple Thermometer ( DTM-3105 )
Thermocouple Thermometer Model DTM-3105
FUNCTION:
ON/OFF, HOLD/TEST, °F/°C, MIN/MAX ( °F/°C) MEMORY RECALLING
* Carrying Case and 4 TC probes Included
PROBE MODEL NO.:
1. DTM-3105-TPK4 Surface probe (230 mm)
2. DTM-3105-TPK5 Air probe (235 mm)
3. DTM-3105-TPK03R Round head immersion probe (130mm)
4. DTM-3105-TPK03S Pin point head immersion probe(125 mm)
FEATURES:
Rubber coated product case
High degree of accuracy
Extra EVA box for easy and protective storage
Four probes included
Comprehensive and variety use for different object (e.g. surface, semi-solid, air)
Large LCD display
MEASUREMENT RANGE
-100°C ~ +300°C or -148°F ~ + 572°F
RESOLUTION:
0.1° for -199.9° ~ +300.0°
ACCURACY:
± 2°C from -200°C ~ -50°C (or 4°F from -328°F ~ -58°F)
± 1°C from -49°C ~ +300°C (or 1.8°F from -56.2°F ~ +572°F)
Accuracy is specified for operating temperatures over the range of 18°C to 28°C (64°F to 82°F). The basic accuracy specification does not include the error of the thermocouple probe.
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Limit value monitoring devices
SG-mc Digital
Limit Indicator
35 mm DIN - rail mounting
* Universal sensor input
* (Pt 100,TC, 0 / 4...20mA, 0...10VDC)
* Alarmcontact free programmable with latch function or without latch function.
* Latch-reset by mini-switch or by power on/off
* Easy handling
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The LumaSense Accufiber®TR solution provides temperature monitoring with automatic emissivity correction. Emissivity changes are due to changing material properties during certain types of material deposition or processing. For specular (smooth) surfaces, the deposition surface’s emissivity can be calculated from its reflectance. By constantly measuring this reflectance, the AccufiberTR instrument can automatically perform the emissivity correction in-situ and calculate the surface’s true temperature.
AccufiberTR seamlessly integrates ultra precise reflectance measurements with LumaSense’s class leading, lowest signal-to-noise ratio radiation detectors. If the n and k values are known for the materials, then the amplitude and periodicity of the thin film reflectance (often referred to as “fringes”) at specific wavelengths can be used to calculate film thickness. For thin films, it is critical to use both the highest quality measurement systems and shorter wavelengths to offer “resolution” into the film’s fringes to monitor film thickness.
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Turbine Sentry - System Overview
An overview of the complete system and how this system is of benefit to gas turbine operators.
A typical system comprises three parts:
Blade Sentry - Measurement Pyrometer
The non-contact thermometer is mounted through the gas turbine casing and measures the temperatures of individual rotor blades.
Rotor Sentry - Data Acquisition System
The DAS logs individual blade temperature readings taken by the measurement pyrometers, samples and processes the data for use by the data analysis software, Data Sentry.
Data Sentry - Data Analysis Software
This powerful pc-based software utility has all the tools and functions necessary to obtain a complete picture of how efficiently the gas turbine is running, as well as identifying potential problems at an early stage.
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These devices have been developed specially for monitoring active electric power, the output torque can be determined very accurately. They are used in mills, stone crushers, conveyors and other application where blocking can occur.
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Hall-effect sensors
Hall-effect sensors are suitable for proximity rotational speed recording on gears with a small module and high resolution. The various models can be used in a wide range of applications, even under extreme conditions. SH type rotational speed sensors are used in a wide variety of applications in mechanical engineering, vehicles and mobile working machines, as well as in hydraulic drives.
The sensor detects the movement of ferromagnetic structures such as gears using the change in the magnetic flux. The sensor is biased using a permanent magnet. Teeth and gaps which moves past the sensor affect the magnetic field in different ways. This changes the Hall voltage on a hall-effect sensor.
This means the changes to the magnetic field can be converted to electrical values, and then filtered and processed. The output signal of the sensor is a square wave voltage which reflects the change in the magnetic field.
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DZ 210: Simple Monitor for Standstill and Direction of Rotation
Simple monitor for control of clockwise or
anti-clockwise rotation and standstill
Versatile impulse inputs for operation with all common
incremental encoders and sensors
High maximum input frequency (500 kHz) and very fast
response time (1 kHz)
Two output relays (dry change-over) and
two fast-responding transistor outputs
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Fast response to the variable, with display, analog output, contact alarms, and data interface. 2 incorporated measuring channels, to compute their ratio, difference, percentage difference (draw and shrinkage in paper and textiles), monitoring speed synchronism. Programmable adaptation to the application data, of the analog span, and of the alarms performance. Optional data bus o RS 232 or PROFIBUS. Design optional for snap-on-track, or panel mount, or 19 inch rack.
Specific versions are available to handle speed and direction output from our corresponding sensors, actuating relays with programmable response characteristics.
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testo 470, rpm measuring instrument set: Instrument with SoftCase (protective case) in transport case, incl. adapter, probe tip, surface speed disc, reflectors, batteries and calibration protocol
testo 470, the ideal combination of optical and mechanical rpm measurement. An optical measurement becomes a mechanical measurement by simply attaching an adapter for probe tip or surface speed disc.
* Easy one-hand operation
* Measurement of rpm, speeds and lengths
* "Low Batt" warning
* Robust design with SoftCase (protective case)
* Storage of mean/max./min. values, last reading
* Measurement distance up to 600 mm (optical measurement)
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Hydro-View
Monitor that displays moisture content readings from sensors
Located normally in a control panel, the Hydro-View unit is a simple to use moisture monitor that displays both the instantaneous and batch average moisture contents from a Hydronix sensor.
The unit which is available in both panel and wall mounting configurations may be used as a stand alone system for display purposes or with a batch controller to provide dynamic batch weight correction. A simple keypad arrangement on the front panel enables all operations to be easily configured and results viewed on the LCD display. Hydro-View is a multi-language system.
Trend Display
A unique facility of the Hydro-View monitor is the 'Trend Display' which will graphically chart the following four functions:
Raw sensor input voltage (V)
Sensor voltage after conditioning (Vc)
Instantaneous Moisture % (M)
Average Moisture % (A)
Although only one trace can be displayed at any one time, all four values are recorded simultaneously and any of the four traces may be selected. It is therefore possible to compare for example the raw sensor input voltage trace to the conditioned signal to assess the effectiveness of the signal conditioning parameters selected.
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Western Research Model 241CE monitors the hydrocarbon dew point of pipeline quality natural gas. Hydrocarbon dew point monitoring is important to both pipeline operators and gas turbine operators since too high a dew point can cause operational difficulties and dramatically shorten equipment life. The Model 241 is a first principal device using a thermoelectric cooler to cool the gas to determine the dew point temperature.
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