27MG . Compact Ultrasonic Corrosion Thickness Gauge

The Olympus 27MG is an affordable line of ultrasonic thickness gauges designed to take precise measurements from one side on metal pipes, tanks and other equipment that are corroded or corroded from the side. in. The device weighs only 340 g and ergonomic design for easy one-handed operation. Despite its compact size, the 27MG has many innovative measuring features using the same technologies found on our more advanced thickness gauges. The 27MG is durable, rugged, battery-operated, and features a large, backlit LCD display with easy-to-read digits and an intuitive color-coded keypad that provides direct access to many key features.

Standard features include Automatic probe identification to ensure optimal transducer performance, Zero compensation automatically to improve measurement accuracy on high temperature surfaces, Sensitivity Adjustment for improved measurement on sound attenuating materials such as cast metal, Differential Measurement Mode, Hi-Low Alert setting and Min/Max record minimum or maximum thickness at 20 measurements measure every second.

27MG is designed for inspectors and maintenance engineers who need to monitor the wall thickness of metal pipes, tanks, beams and structural supports that are susceptible to corrosion on internal surfaces. Ultrasonic thickness gauges provide a quick, cost-effective solution by using ultrasound that is transmitted to the material from the outside, without damaging the part to be measured.

Transducers/Transducers

Transducers with Automatic Probe Recognition

27MG is compatible with dual element transducers for every application.

Transducer	Item Number	Freq. (MHz)	Connector	Tip Diameter mm (in.)	Range (Steel)* mm (in.)	Temp. Range** C (ºF)	Cable	Item Number
D7910	U8454038	5.0	90°	12.7 (0.500)	1.00 to 254 (0.040 to 10.00)	0 to 50 (32 to 122)	Potted	¯
D790	U8450002	5.0	Straight	11.00 (0.434)	1.00 to 50000 (0.040 to 20,000)	-20 to 500 (-5 to 932)	Potted	¯
D790-SM	U8450009		Straight				LCMD-316-5B†	U8800353
D790-RL	U8450007		90°				LCLD-316-5G†	U8800330
D790-SL	U8450008		Straight				LCLD-316-5H	U8800331
D791	U8450010	5.0	90°	11.00 (0.434)	1.00 to 50000 (0.040 to 20,000)	-20 to 500 (-5 to 932)	Potted	¯
D791-RM	U8450011	5.0	90°	11.00 (0.434)	1.00 to 50000 (0.040 to 20,000)	-20 to 400 (-5 to 932)	LCMD-316-5C	U8800345
D792	U8450012	10	Straight	7.20 (0.283)	0.50 to 25.00 (0.020 to 1,000)	0 to 50 (32 to 122)	Potted	¯
D793	U8450013		90°				Potted	¯
D794	U8450014	5.0	Straight	7.20 (0.283)	0.75 to 50.0 (0.030 to 2,000)	0 to 50 (32 to 122)	Potted	¯
D797	U8450016	2.0	90°	22.9 (0.900)	3.80 to 635.00 (0.150 to 25,000)	-20 to 400 (-5 to 752)	Potted	¯
D797-SM	U8450017		Straight				LCMD-316-5D	U8800355
D7226	U8454013	7.5	90°	8.90 (0.350)	0.71 to 50.00 (0.028 to 2,000)	-20 to 150 (-5 to 300)	Potted	¯
D798-LF	U8450019
D798	U8450018	7.5	90°	7.20 (0.283)	0.71 to 50.00 (0.028 to 2,000)	-20 to 150 (-5 to 300)	Potted	¯
D798-SM	U8450020		Straight				LCMD-316-5J	U8800357
D799	U8450021	5.0	90°	11.00 (0.434)	1.00 to 50000 (0.040 to 20,000)	-20 to 150 (-5 to 300)	Potted	¯
MTD705	U8620225	5.0	90°	5.10 (0.200)	1.00 to 19.00 (0.040 to 0.750)	0 to 50 (32 to 122)	LCPD-78-5	U8800332

*Depending on material, probe, surface condition, temperature the measuring range may vary.

**Maximum temperature based on intermittent exposure conditions.

†Cable with stainless steel sheath for added durability is reported separately.

Specifications

Measurements	Dual element transducer measurement mode	Time interval from a precision delay after the excitation pulse to the first echo
	Thickness range	0.50 mm to 635 mm (0.020 in. to 25.0 in.) depends on material, transducer, surface conditions, temperature
	Material velocity range	0.508 mm/μs to 18.699 mm/μs (0.020 in./μs to 0.7362 in./μs)
	Resolution (selectable)	Low: 0.1 mm (0.01 in.) Standard: 0.01 mm (0.001 in.)
	Transducer frequency range	2.25 MHz to 10 MHz (–3 dB)
General	Operating temperature range	-10 °C to 50 °C (14 °F to 122 °F)
	Keypad	Sealed, color-coded keypad with tactile and audible feedback
	Case	Impact-resistant and water-resistant, gasketed case with sealed connectors. Designed for IP65.
	Dimensions (W x H x D)	84.0 mm x 152.4 mm x 39.6 mm (3.31 in. x 6.0 in. x 1.56 in.)
	Weight	340 g (12 oz)
	Power Supply	3 AA alkaline batteries
	Battery life operating time	150 h of typical battery life, 30 h continuous use with backlight
	Explosive Atmosphere	Safe operation as defined by Class I, Division 2, Group D, as found in the National Fire Protection Association Code (NFPA 70), Article 500, and tested using MIL-STD-810F 511.4 Procedure I
	Standards	Designed for EN15317
	Alarm mode	Programmable Hi/Low set points with audible and visual indicators
display	Display Hold/Blank mode	Holds or blanks the display after measurements
	Backlight	Electroluminescent backlight, Selectable as On or Auto On
	Receiver bandwidth	1 MHz to 18 MHz (–3 dB)
	Metric/English mode	Metric or English units
	Display languages	English, French, German, Spanish, Italian, Portuguese, Russian, Polish, and Swedish

Standard accessories

• 27MG digital ultrasonic thickness gage
• Dual element transducer
• AA alkaline batteries
• Test block and couplant
• Carrying case
• Wrist strap
• User's manual on CD
• Getting started Guide
• Measurement features: Min./Max. mode, Differential mode, Gain Adjust Freeze mode, Automatic Probe Recognition, Zero Compensation

Accessories are subject to change without notice. Please contact VISCO for more details.

Optional accessories

• 2214E (U8880014): 5-step test block, English units
• 2214M (U8880016): 5-step test block, metric units
• 27MG/RPC (U8780343): Protective rubber boot with Neck Strap and Gage Stand

When using the product for high-temperature applications or when testing on curved surfaces, additional accessories such as remote probe holder, curved surface adapter and contactors can be consulted. high temperature.