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Description
MAJ MT993Loop Calibrator, Active Passive Current O P Range: 0~24mA, Max Load: 750, Voltage O P Range: 0~24V, Max Current 30mA, PWM O P (Frequency) Range: 0~9999Hz, 240x320 TFT Colour LCD Screen, Built in lithium Rechargeable 3000mAh Battery Loop Calibrator and Signal Generator Overview The MT993 is a versatile Loop calibrator and signal generator designed for effortless sourcing and measurement of various process parameters, making it an ideal tool for testing
Loop Calibrator, Active/Passive Current O/P Range:0~24mA, Max Load:750Ω, Voltage O/P Range:0~24V, Max Current 30mA, PWM O/P (Frequency) Range: 0~9999Hz, 240x320 TFT Colour LCD Screen, Built-in lithium Rechargeable 3000mAh Battery
Loop Calibrator and Signal Generator
Overview
The MT993 is a versatile Loop calibrator and signal generator designed for effortless sourcing and measurement of various process parameters, making it an ideal tool for testing most process devices. With two independent channels, this device allows simultaneous measurement, sourcing, and viewing of process signals, covering volts, mA, frequency, and resistance for thorough testing of sensors and transmitters. Primarily utilized for debugging industrial field PLC, process instrumentation, electric and Pneumatic valves, the MT993 signal generator boasts a user friendly operation interface, ensuring ease of use with a long standby time and high precision. The output features customizable functions, allowing users to set upper and lower limits based on their requirements. Experience enhanced functionality with PWM output, enabling users to set the frequency and duty cycle independently. Real-time curve monitoring facilitates the observation of voltage and current changes. The adjustable button backlight and high-definition TFT colour LCD screen ensure convenient operation both day and night. Designed with portability in mind, the MT993 comes in a miniature size that is easy to carry. Whether in a bag or car, this device can be taken anywhere, providing flexibility for usage whenever and wherever needed. Elevate your testing capabilities with the MT993 Loop calibrator and signal generator.
Features
- Active current output: range: 0~24mA
- Maximum load: 750Ω
- Passive current output: range: 0-24 mA
- External power supply up to 30V
- Voltage output: range: 0-24 V
- Maximum current 30mA
- 24V voltage output
- Drive current: 24mA
- XMT Passive Current Signal
- Current input measurement: range: 0-24 mA
- Voltage input measurement: range: 0-30 V
- Real-time Curve: The changing trend of input and output signals can be displayed by drawing a curve, and the sampling time of the curve can be set.
- It can also automatically adjust the display curve within the range of maximum and minimum values in a certain period
- PWM output (frequency): Range: 0-9999Hz
- The high-definition 240*320 TFT colour LCD screen ensures readings are easily viewed
- Built-in 3000mAh lithium rechargeable battery power supply with standby time of around 26 hours; the using time varies, based on the usage (It can be 8-10 hours with 20mA continuous output)
Specifications
| Function | Range | Resolution | Accuracy |
| Active Current Ouput | 0 to 24mA | 0.001mA | ± (0.01% + 0.005) |
| Passive Current Output | 0 to 24mA | 0.001mA | ± (0.01% + 0.005) |
| Voltage Output | 0 to 24V | 0.01V | ± (0.01% + 0.005) |
| 24V Loop | 0 to 24mA | 0.01mA | ± (0.01% + 0.005) |
| Frequency Output | 0 to 9999Hz | 5 digits | ± (2%) |
| Current Input | 0 to 24mA | 0.01mA | ± (0.01% + 0.005) |
| Voltage Input | 0V – 30V | 0.01V | ± (0.01% + 0.005) |
| Dimensions | 112 x 82 x 27mm | ||
| Weight | 165g | ||
Downloads
Additional Information
| Device | Loop Calibrator |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
This is a great watch for the price!
I purchased this watch to use mostly down at my cabin. It is well-made, the functions are easy to use, and it has withstood all the abuse I’ve put it through. I wear this while hunting, cutting firewood, riding ATVs, and just running around the timber. If I destroy this watch in six months, it will be well worth the money I paid for it, but I don’t think that’s going happen. It’s stylish enough to wear to the office and just going out. If you’re looking for an every day watch, you’re not worried about destroying, this is the one to get.
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Reviewed in the United States on December 11, 2023
★★★★★ 3
Excellent Time Keeper // Terrible Wristband !
The watch itself is fantastic. When I first got it, and set it up, I set it to the time on my computer, which is as accurate as you can get. In the beginning I checked the time accuracy daily. After a few weeks my time checks changed to once, or twice a week. I never had to change the watch's time. The seconds would vary a little, in comparison to the computer clock. But, it never got more than 30 seconds either side of the computer clock. However, the watchband is a big time NO-GO! The buckle, where you connect it on your wrist, can be frustrating most of the time when you are trying to put it on. Once you've got it on, the strap that goes beyond the buckle is held down by a sliding keeper, that slides in and out depending on what you're doing. Terrible design! I wanted to buy a "Twist-a-Flex" wristband, but couldn't find one that matched the unusual design where the straps attach to the watch body. I bought the watch 4 months ago. Today, one of the 4 pins, that connect the straps to the watch body, fell out somewhere, making the watch impossible to wear. Excellent price. Excellent timepiece. Worst design for a wristband that I've ever seen.
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Reviewed in the United States on September 22, 2020
★★★★★ 5
Excellent for price, you won't be sorry
If you are looking for a watch with a lot of features that doesn't cost a lot, this is your watch. I tear up watches fairly easily in my line of work and after I killed my Seiko I decided I would hunt out a cheap watch. There aren't a lot of watches at this price range that include a stopwatch, date (with day of the week), AND has a light that is bright enough to actually read the time in the dark. This one does.
The watch not dainty; it is big and bulky, bigger than I thought it would be, but not unwieldy and not super heavy. Expect it to be big. This also helps with readability (My son can read the time on this watch from the other side of the couch).
The band feels rugged, made of a pliable and soft- feeling rubber and has a two- pronged belt- like closure (think 'biker belt') that keeps it secure on the wrist. Additionally, the holes for the band goes the entire length of the band so it is adjustable for really small wrists up to about 9.25" circumference.
Others have complained about how easily the face scratches, but I suspect they've failed to remove the protective coating on the lens. It's a protective film that you have to get your fingernail under to pull off. Once that's off, the lens is crystal clear and fairly tough. I've had mine for a week now and used it under some fairly harsh conditions and the lens is still clear and scratch-free.
My only complaint seems petty for a watch at this price point, but the strap-end hold down 'belt'--- the loop that holds down the extra length of the strap when it's buckled--- moves easily and so in use it will occasionally come off and you have to retuck the end back into it. But seriously, this is really minor.
If you need an inexpensive digital that's easy to read in both daylight and darkness, ya don't mind a large and bulky, rugged- looking watch, and don't want to spend an arm and a leg, get this one. You likely won't be sorry.
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Reviewed in the United States on February 4, 2023
★★★★★ 5
Great wallet
Color: Brown (Bifold)
Great wallet, my son loved it!!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Black wallet 💰
Color: Black (Trifold)
I love it!!
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Reviewed in the United States on April 17, 2026