• Simulates output ranges of 4mA, 12mA and 20mA from transmitter
• Ideal for checking calibration and as a current source for setting up engineering units on a process indicator or controller
• Bright red LEDs indicate simulation output or battery status
• Accurate to 0.1mA • Overload indication when load exceeds 240Ω
• Compact case features push button output selector switch
• Dimensions: 389 x 58.4 x 25.4mm; Weight: 283.5g
• Complete with calibration cable and 9 volt battery

The Extech 412440-S current loop checker is a low cost, pocket-sized checker for simulating current loops. Featuring the ability to instantly determine if your device needs calibration, the Extech 412440-S current loop checker is ideal for checking calibration and as a current source for setting up engineering units on a process indicator or controller. The Extech 412440-S current loop checker simulates output ranges of 4mA, 12mA, and 20mA from the transmitter.

Bright red LEDs indicate the simulation output or the battery status. The Extech 412440-S current loop checker is accurate to 0.1mA, and there is overload indication when the load exceeds 240Ω. The compact case features a push button output selector switch.

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Extech 412300A allows you to measure and source current readings simultaneously whivh can be beneficial to a many people who regularly complete jobs involving measuring current. The Extech 412300A Current Calibrator/Meter is an oyster flip device made easier to use by its ability to be stood up on a bench or workspace.

For added ease of use coupled with the oyster flip case of this measuring current device, it also comes with a detachable strap that can be hung around your neck leaving you completely hands free to undertake other tasks at the same time.

Extech 412300A has also been programmed with five preset calibration values for fast calibration calculations in the field for efficient working.

The memory feature provides the user with five (5) user programmable source values for stepped calibration outputs. The feature is available for mA and % units in the SOURCE mode. The stored values are kept in non-volatile memory (memory that is retained even after power is removed from the calibrator).

Source from the stored memory values: 1. Select the Source mode as described earlier 2. Press the MEM button. The M1 icon (memory location 1) will appear in the display and the value stored in that location will be displayed and sourced. 3. Repeated pressing of the MEM button will step through the 5 memory locations. NOTE: The “SOURCE” icon will blink when the output value has not reached a stable level. The common cause for the “SOURCE” icon to remain blinking is that the load impedance is too high in the current mode.

Storing values into memory: 1. As described above, select and display a memory location (M1, 2, 3, 4, or 5) 2. Use the ▲ ▼buttons to adjust the display to the desired source value. 3. Press and hold the MEM button for > 2 seconds. The displayed value will be stored in the displayed memory location. Default memory values. Five common source values are permanently programmed in memory as the default values. These values can be replaced by user selected values.

To reset the meter to the default memory values: 1. Turn the meter on and select the SOURCE mode. 2. Press and hold the POWER button until appears in the display and then release the POWER button. The memory locations will revert to the default values. Default Memory Values M1 M2 M3 M4 M5 are 4mA, 8mA, 12mA, 16mA, 20mA (0% 25% 50% 75% 100%).

Extech 412300A Specifications:

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The design of the Extech 412355A is user friendly making you more efficient at your job by being able to control your device with just one hand, leaving the other free to complete any other task. The oyster case has a flip up display that makes this product perfect for holding in one hand or placing on top of a benchtop when you need to note down any of the current meter measurements that have been taken. For added ease of noting them down, the device can also store up to 5 calibration values that can be recalled later.

Extech 412355A Product Specifications Summary:

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• 0 to 24mA (-25 to 125%) readout
• 24V DC power source for 2-wire current loop
• Up to five user adjustable calibration presets
• Palm-sized double molded housing and large dot-matrix digital backlit LCD
• Standard banana I/O ports
• Large battery bank for extended work cycle
• External power adapter for continuous work cycle

The Extech PRC10 is ergonomic, compact, rugged, and easy-to-use, the PRC10 is extremely accurate, features fast response times, and can store up to five user-adjustable calibration presets. This device sources/measures 0-24 mADC (-25 to 125 percent) current for loads up to 1000 ohms; measures 0-50 mADC (-25 to 230 percent); and powers/measures 24 VDC two-wire current loops.

The Extech PRC10 has a large, backlit LCD display that enables users to view both source and measured readings simultaneously, eliminating the need to toggle back and forth between the two values. The meter also allows users to store up to five preset values to speed calibrations.

Applications

• Process device calibration & simulation
• Transducers
• Transmitters
• Indicators
• Controllers
• Recorders
• Field testing and service
• Bench research/development

Specifications

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Precision source and measure for thermocouples (8-Types), mA, mV, and V devices

Applications include:

• Lab and Field Calibration and Verification Operations of Sensors, Thermocouple Probes, Controllers, Panel meters & Testing tools.

• Temperature Control Process Troubleshooting

• Process devices calibration and simulation: Transducers, Transmitters, Indicators, Controllers, and Recorders

• Field test and service

• Bench research and development

PRC30 Specifications

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The PRC20 sources and measures eight thermocouple type devices (J, K, T, E, C, R, S and N) and provides precision output displayed as Centigrade/Fahrenheit or mV. It has five user adjustable calibration presets and a Type K temperature range of -50 to 1370 degrees C.

Applications

• Lab and field calibration and verification operations of sensors, thermocouple probes, controllers, panel meters & testing tools.
• Engineering research and design
• Manufacturing and test engineering
• HVAC
• Temperature control process troubleshooting

Specifications

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Precision “source” for calibrating process devices.

Applications include:

• Process devices calibration and simulation

– Transducers

– Transmitters

– Indicators

– Controllers

– Recorders

• Field test and service

• Bench research/development

Tilt Stand / Hanger

The rear stand is provides two methods for convenience in viewing. 1. Pull the bottom portion of the stand out to place the unit on a flat surface for viewing. 2. Pull the bottom and top portions of the stand out, and then rotate the stand to allow the unit to be hung.

Battery Replacement

When the battery icon appears on the display, the six AA batteries must be replaced. The battery compartment is located on the rear of the meter. 1. Open the tilt stand, loosen the captive Philips head screw and remove the battery cover. 2. Remove and replace the batteries, observing polarity. 3. Replace and secure the battery cover.

Extech PRC15 Specifications

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