Klein Tools ET920 Instruction Manual

ENGLISH
INSTRUCTION MANUAL - USB DIGITAL METER - TYPES A AND C
GENERAL SPECIFICATIONS
The Klein Tools ET920 is a USB digital meter for both USB-A (Type A) and USB-C (Type
C) ports. It accurately and reliably measures and displays the USB port voltage, current,
capacity, energy and resistance simultaneously. It can function with any USB-A and most
USB-C ports that have the ability to deliver power. It requires no batteries, as it draws power
from the power source.
• Measurement Range:
Voltage: 3 to 20V DC, accuracy +/- 1% (+/- 2 Bytes)
Current: 0.05 to 3A (Type A), 0.05 to 5A (Type C), accuracy +/- 1% (+/- 2 Bytes)
Charge delivered: 99,999mAh MAX*
Energy delivered: 999Wh MAX*
Resistance: 400 MAX
Elapsed Time: Up to 999 hours, 59 min, 59 sec*
* Based on display layout
• Operating and Storage Altitude: Up to 6562 ft. (2000 m)
• Operating and Storage Temp: 14° to 122°F (-10° to 50°C)
• Relative Humidity: <95% non-condensing
• Dimensions: Tester: 2.95" × 1.96" × 0.6" (75 × 50 × 15 mm)
Cable: Approx. 4" (100 mm)
• Weight: 1.7 oz. (49 g)
• Pollution degree: 2
• Drop Protection: 6.6 ft. (2 m)
• Ingress Protection: IP20
• Compatibility: Qualcomm Quick Charge® Compatible
• Standards: Conforms to UL STD. 61010-1, 61010-2-030.
Certified to CSA STD. C22.2 No. 61010-1, 61010-2-030.
FUNCTION BUTTONS (FIG. 1)
MODE BUTTON 5 (Screen Toggle/Data Storage/Memory reset)
The Mode button serves three purposes:
1. Switch between screens (FIG. 2):
From the default screen, pressing and releasing once will switch to the Memory Screen.
2. Data/Memory Storage:
To record a reading during live monitoring event, press and hold the Mode button for 3 seconds.
Release the button after the memory location (i.e. M:1A) flashes momentarily on the screen. The
next set of readings will be stored at the next available location until all 10 memory locations are
used. NOTE: After all 10 locations are used, subsequent readings will overwrite the original 10
stored readings, beginning with M:1. The memory location will reflect the connector type in use
when the data was stored (i.e. "M:1A" if USB-A, "M:1C" if USB-C). NOTE: When in the Memory
screen, if the Mode button is not pressed within 3 seconds, the display will return to the Default
screen.
3. Memory Recall/Reset:
When in the Memory Screen, repeated pressing will cycle through all 10 memory locations,
beginning with M:1A or M:1C. You must scroll through all 10 locations to exit. NOTE: If no data
has been stored into memory, pressing the Mode button will do nothing. The ET920 will only
display memory locations containing stored data.
To reset or erase all data in memory, press and hold the Mode button for 5 seconds from the
Memory screen until the letters CLR flash in the upper right corner (FIG. 2). All data in memory
will be erased in all 10 memory locations.
1. Power source INPUT (USB-A) A. DC voltage
2. Power source INPUT (USB-C) B. DC current
C. Capacity/Charge delivered (mAh)
3. Load OUTPUT (USB-A)
D. Energy delivered (Wh)
4. Load OUTPUT (USB-C)
E. Resistance ( )
5. Mode button
F. Elapsed Time (Hour:Min:Sec)
6. LCD display
G. Memory Location (M:1, M:2, etc)
H. Memory Clear/Reset ("CLR")
I. Connector type in use (USB-A or USB-C)
NOTE: No user-serviceable parts inside.
To ensure safe operation and service of the tester, follow these
instructions. Failure to observe these warnings can result in severe
injury or death.
• This tester will NOT display current below 50 mA, even if it is allowing
this to pass through. this to pass through.
• DO NOT use with ports that operate outside of the rated voltage and DO NOT use with ports that operate outside of the rated voltage and DO NOT use with ports that operate outside of the rated voltage and use with ports that operate outside of the rated voltage and
current. current.
• Before each use verify tester operation by measuring a known voltage or Before each use verify tester operation by measuring a known voltage or Before each use verify tester operation by measuring a known voltage or
current. current.
• NEVER use on a circuit with voltage or current that exceeds the use on a circuit with voltage or current that exceeds the use on a circuit with voltage or current that exceeds the
maximums specified for this device. Use caution when working with maximums specified for this device. Use caution when working with maximums specified for this device. Use caution when working with maximums specified for this device. Use caution when working with
voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock voltages above 25V AC RMS or 60V DC. Such voltages pose a shock
hazard. hazard. Voltage above 24V DC will damage product. Voltage above 24V DC will damage product. Voltage above 24V DC will damage product. Display will read Voltage above 24V DC will damage product.
"OVERLOAD" in this condition and output port will be disabled. "OVERLOAD" in this condition and output port will be disabled. "OVERLOAD" in this condition and output port will be disabled.
• DO NOT use during electrical storms or in wet weather.
• DO NOT use if tester appears to be damaged. DO NOT DO NOT use if tester appears to be damaged.
• Use caution when working with voltages above 25V AC RMS or 60V DC. Use caution when working with voltages above 25V AC RMS or 60V DC. Use caution when working with voltages above 25V AC RMS or 60V DC. Use caution when working with voltages above 25V AC RMS or 60V DC. Use caution when working with voltages above 25V AC RMS or 60V DC.
Such voltages pose a shock hazard. Such voltages pose a shock hazard. Such voltages pose a shock hazard. Such voltages pose a shock hazard.
damage product. damage product.
• Always adhere to local and national safety codes. Use personal Always adhere to local and national safety codes. Use personal Always adhere to local and national safety codes. Use personal
protective equipment to prevent shock and arc blast injury where protective equipment to prevent shock and arc blast injury where protective equipment to prevent shock and arc blast injury where protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed. hazardous live conductors are exposed.
• DO NOT attempt to repair this tester. There are no serviceable parts. DO NOT DO NOT attempt to repair this tester. There are no serviceable parts.
Specifications subject to change.
• DO NOT modify this tester in any way. DO NOT DO NOT modify this tester in any way.
• DO NOT expose to extremes in temperature or high humidity. DO NOT expose to extremes in temperature or high humidity. DO NOT
• This tester will NOT be able to monitor a source port if any of the
following conditions occur: following conditions occur:
• The USB port or plug is not properly connected.
• The source device shuts down. Some portable storage batteries The source device shuts down. Some portable storage batteries The source device shuts down. Some portable storage batteries
have auto-shutdown or standby modes to save power if no load is have auto-shutdown or standby modes to save power if no load is have auto-shutdown or standby modes to save power if no load is have auto-shutdown or standby modes to save power if no load is
detected from downstream device. detected from downstream device.
Important information: It is important that users of this tester read,
understand, and follow all warnings, cautions, safety information, and
instructions in this manual before operating this tester. Failure to follow
instructions could result in death or serious injury.
Warning – Risk of electric shock
This product has been independently tested by Intertek and meets
applicable published standards
Conformité Européenne: Conforms with European Economic Area directives
UKCA - UK Conformity Assessment
Read instructions before using
USB
FIG. 1
5
4
3
WARNINGS
display current below 50 mA, even if it is allowing display current below 50 mA, even if it is allowing display current below 50 mA, even if it is allowing display current below 50 mA, even if it is allowing display current below 50 mA, even if it is allowing display current below 50 mA, even if it is allowing
NOTE: NOTE: The display will show zero current. The display will show zero current.
Display will read Display will read Display will read
NOTE: Voltage above 24V DC will NOTE: Voltage above 24V DC will
CAUTION
be able to monitor a source port if any of the be able to monitor a source port if any of the
SYMBOLS ON TESTER
6
2
1
OPERATING INSTRUCTIONS
MONITORING MODE
NOTE: The USB-A input must be used with the USB-A output only. The USB-C input must be
used with the USB-C output only. This product does not function as a USB-C to USB-A adapter.
NOTE: USB-A and USB-C sides CANNOT be used simultaneously. The rst device connected,
whether USB-A or USB-C, will be the monitored source.
NOTE: The input plug must be connected to a powered USB device before the downstream
device is connected to the output port. "Downstream device" refers to any device that has the
ability to draw current over USB.
1. Connect one of the ET920's input connectors (USB-A or USB-C) to the USB power source that
needs to be monitored (FIG. 3).
• The LCD screen will turn on with Klein Tools logo screen and move quickly to the Default Screen
(FIG 2). NOTE: For USB-C, a downstream device must be connected to turn on the ET920.
• If the source port has power, it should only display a live voltage reading within the operating
range, 3-20V DC. NOTE: Most USB ports deliver ~5V DC.
2. Connect the device being charged to the output port of the ET920 (FIG. 3). The display will
show actual readings (FIG. 2).
NOTE: "mAh" resets only when source is disconnected.
CLEANING
Be sure the tester is disconnected from both the input and output port. Use clean, dry, soft lint-
free cloth to wipe down the entire unit.
• Do NOT use abrasive cleaners or solvents.
STORAGE
Do not expose to high temperatures or humidity. After a period of storage in extreme conditions
exceeding the limits mentioned in the General Specifications section, allow the tester to return to
normal operating conditions before using.
FCC & IC COMPLIANCE
See this product's page at www.kleintools.com for FCC compliance information.
Canada ICES-003 (B) / NMB-003 (B)
DISPOSAL / RECYCLE
Do not place equipment and its accessories in the trash. Items must be properly disposed
of in accordance with local regulations. Please see www.epa.gov/recycle for additional
information.
CUSTOMER SERVICE
KLEIN TOOLS, INC.
450 Bond Street, Lincolnshire, IL 60069
customerservice@kleintools.com
FIG. 2 FIG. 3
Default Screen
A ##.## V
B
#.## A I
USB-#
C
###### mAh ####Wh
F
###:##:## ###.#Ω
Memory Screen
A G H
##.## V
CLR
B
#.## A
C D
###### mAh ####Wh
E
F
###:##:## ###.#Ω
ET920
1-800-553-4676
www.kleintools.com
USB-A
USB-C
STEP 1
STEP 2