The instrument can operate for about 2 hours on one fully charged Z1007 Battery Pack, or for about 4 hours on two fully charged Battery Packs. (Reference value at 23°C)

The wireless modules can work for five to nine hours (depending on the model type) with the Battery Pack fully charged. (Reference value at 23°C)

Continuous operating time on Battery Pack power

Plug-in module power consumption when using the AC adapter or a 12 V DC external power supply (23°C reference values)

• U8550: 0.9 VA

• U8551: 1.5 VA

• U8552: 0.9 VA

• U8553: 1.1 VA

• U8554: 2.0 VA

• U8555: 1.9 VA

• U8556: 1.8 VA (Varies by the current sensor being used and the current being measured)

No measurement data will remain. If electric power to only a wireless module is interrupted, the instrument will continue the measurement. However, against a power failure, using the Z1007 Battery Pack is recommended.

Installing a Battery Pack

Recording can be resumed when the power comes back on by using the start state retention function.

“7.1 Configuring Settings” in the Instruction Manual.

When measuring temperature with a thermocouple, the terminal temperature is measured by an internal temperature sensor and used to perform reference junction compensation. When the ambient temperature changes abruptly, the thermal balance between the terminal block and the temperature sensor is interrupted, causing temperature error. When moving the instrument to a location with a significantly different temperature, allow the instrument to sit for at least 60 minutes before performing measurement.

Installing the instrument

The zero-adjustment function can be used to correct for such differences. The zero-adjustment function is disabled for the Strain Units (U8554, LR8534).

You can correct the zero position of the Strain Unit using the auto-balance.

“1.10 Performing Zero Adjustment” "Measuring strain" in the Instruction Manual.

If the input terminals are left open, the instrument may display waveforms that have been affected by other channels. Either disable the channels with open inputs or short the positive and negative terminals.

Displayed values can frequently fluctuate due to induction potential even when no voltage is applied. This, however, is not a malfunction.

You can assign event marks in waveforms.

You can jump to event mark locations on the display.

“5.1 Assigning Event Marks during Measurement” in the Instruction Manual.

The difference will be about 20 ms with robust wireless communications and more when the networking signal is weak.

“1.17 Measurement Data” in the Instruction Manual.

When a trigger has been set, recording will not start until the trigger conditions are satisfied.

You can forcibly activate the trigger.

“2 Trigger Function” and “2.8 Forcibly Activating the Trigger” in the Instruction Manual.

Set the waveform display color to [×] (OFF).

“1.4 Configuring Input Channels” in the Instruction Manual.

You can measure temperature as long as the voltage does not exceed the maximum channel-to-channel voltage or the maximum channel-to-ground voltage.

If the voltage exceeds either of those values, avoid applying the voltage to the input terminals, for example by using a non-grounded thermocouple.

Measurement precautions

Use the [INT] (internal) setting when connecting the thermocouple to the module’s terminal block.

The measurement accuracy is determined by adding the temperature measurement accuracy to the reference junction compensation accuracy.

Example: When measuring a temperature within the range of 0°C to 100°C with a K thermocouple

The accuracy is obtained by adding the reference contact correction accuracy of ±0.5°C to the temperature measurement accuracy of ±0.5C°, yielding a value of ±1.0°C.

“Measuring temperature (with thermocouples)” in the Instruction Manual.

Use only Hioki optional SD Memory Cards or USB Drives. Proper operation is not guaranteed when using commercially available SD memory cards and USB drives.

USB drives with security functions such as fingerprint authentication cannot be used.

SD Memory Card and USB Drive

Choose [Eject] on the top right of the waveform screen and press the ENTER key.

“Replacing (ejecting) media during real-time save operation” in the Instruction Manual.

Available recording length settings are determined by the number of channels and the recording interval.

Example: For a recording interval of 1 s with 15 channels and 1 GB media, you can record for about 400 days.

“11.9 File Size” in the Instruction Manual.

You can convert automatically saved waveform (binary) data into text format (CSV) data with the Logger Utility.

You can load CSV files with Excel.

Using the Logger Utility

Set [Display horizontal axis] to [Date].

• Time: Time elapsed since the start of measurement

• Date: Actual time (time and date)

• Data points: Number of data points since the start of measurement

“Other display settings” in the Instruction Manual.

“.MEM”: Binary waveform data that can be loaded by the instrument or the Logger Utility

“.LUW”: Logger Utility waveform data that cannot be loaded by the instrument

“3.1 Data That Can Be Saved and Loaded” in the Instruction Manual.