ULTRAChecker User Manual

Introduction

This user manual provides comprehensive instructions for operating the ULTRAChecker, an advanced ultrasound measurement device from SDT Ultrasound Solutions. It covers device specifications, setup, operation, and troubleshooting.

The ULTRAChecker is designed for precise ultrasound measurements, offering a user-friendly interface and robust performance.

Specifications

Category	Feature	Details
General	Function	Ultrasound measurement device
	Operable with	SDT FlexID2, SDT LUBESense1, SDT RS2 Threaded/Needle, SDT AIRSense, SDT ULTRASense, SDT PARADI-sh2 RS2A, ExtUsAmp (cable for external transducers only, since v 3.1.508)
	Measurement interface	1 channel via a 7 pole LEMO connector
	Display	160x128 pixels Color OLED
	Keyboard	5 function keys
	Measuring range	-6 to 99.9 dBμV RMS (ref 0 dB = 1 μV)
	Resolution	0.1 digits
Environmental	Operating temperature range	-10 to +50 °C \| 14 to 122°F non-condensing
Environmental	IP rating	IP42
Mechanical	Housing material	ABS
	Dimensions housing	158x59x38.5 mm (6.22"x2.32"x1.51")
	Weight	164g \| 5.78oz
Power	Battery	2 AA batteries
Power	Autonomy	7 hours
Audio	Operable with	Provided Headphones
Audio	Headset	25 dB NRR Peltor quality headphones

User Manual

Powering your equipment

To power the ULTRAChecker, open the battery compartment using the supplied screwdriver. Correctly insert two AA alkaline or rechargeable batteries. The remaining battery level is displayed in the top-right corner of the screen ?. A full green battery indicator signifies a fully charged battery. The equipment's autonomy when fully charged is approximately 7 hours. The device can also be powered through its USB port ? using an external battery pack.

Important: The ULTRAChecker automatically turns off when the battery power is insufficient to ensure proper operation, or after 10 minutes of inactivity.

Connecting the sensor cable

Connect the sensor cable to the device by aligning the red dot [red dot] on the plug with the red mark [red mark] on the connector, then insert the plug. To unplug, move the knurled barrel of the plug upwards without any rotating movement. This connection procedure applies also to the flexible extension cable.

A "Sensor ?" message ❓ indicates that no or an incompatible sensor is connected. The "x-sensor" ✖️ indication will disappear only when the ULTRAChecker is correctly wired and connected to the appropriate sensor.

Using the ULTRAChecker

Pressing the on/off switch ⚙️ turns the equipment on immediately. To switch off, press and hold the on/off button for approximately 2 seconds.

For accurate measurements, the amplification needs to be adjusted for each reading. This is achieved by using the up and down arrows ⬆️ ⬇️ and following the triangular amplification guidance icons [guidance icon] located in the top-left corner of the display. The current amplification setting is shown on the display.

Once the correct amplification level is reached, the measurement reading will be displayed in green [reading correct], and a smiley face ? will appear where the triangular guidance icon was previously shown. If the reading is displayed in red [reading too high], the amplification is too high and must be reduced by pressing the "arrow down" button ⬇️. If "-.-" is displayed on the screen, the amplification is too low and requires increasing by pressing the "arrow up" button ⬆️. In both cases (amplification too low or too high), adjust until the reading is displayed in green [reading correct] and the smiley face ? appears.

Using the headphones

To enhance the hearing experience, the audio volume of the headset can be adjusted by pressing the left and right arrows ⬅️ ➡️ until the sound level is comfortable. Avoid setting the sound too low, as this may cause some signals to be missed, potentially overlooking leaky spots. Connect the headphones ? here. Set the volume to a safe level to protect yourself from permanent hearing loss. The current volume setting ? is displayed only when a headset is connected.