Connecting the Humidity Sensor

Applicable modules: U8550, U8551, U8552, LR8531

You will need: a flat-head screwdriver (with a tip width of 2.6 mm) and the Z2000 Humidity Sensor

1 Open the terminal block cover.

2 Connect the Z2000 Humidity Sensor’s power cable to external control terminal voltage output terminal 1 or 2.

Connect the red cable to the “VOUTPUT1” terminal or the “VOUTPUT2” terminal and the black cable to the “GND” terminal. The instrument can supply power to up to 120 pieces of the Z2000 at once.

 

 

To supply power to the Z2000, set Voltage output terminals 1 or 2 to [12 V].

“8.1 Configuring Voltage Output (VOUTPUT)” in the Instruction Manual.

 

With the LR8531, you can connect the Humidity Sensor’s power cable to the module’s Z2000 power supply terminal. The instrument can supply power to up to 15 pieces of the Z2000 at once.
Connect the red cable to the positive terminal and the black cable to the negative terminal.

 

3 Connect the Z2000’s measurement cable to the input channel’s push-button terminal or screw terminal.

Connect the yellow cable to the positive terminal and the green cable to the negative terminal.

 

4 Pull gently on the cable and verify that it does not come out.

5 Affix the Z2000 to the measurement target.

6 Close the terminal block cover.

 CAUTION

Do not use the Z2000 Humidity Sensor in locations with an excessive amount of dust or locations causing the instrument to get wet.

Doing so could damage the Z2000 Humidity Sensor, which is not water-resistant or dust-resistant.

  • The Z2000 Humidity Sensor’s sensitivity and precision will degrade over time, even under normal operating conditions. To ensure measurement within the accuracy specifications, it is recommended to replace the sensor with a new model after one year of the first open of the sealed package.

  • If the conditions diverge from the indicated operating (storage) environment, the Z2000 Humidity Sensor’s precision may degrade in less than a year, making it incapable of accurate measurement.

  • In principle, placing the Z2000 Humidity Sensor in an environment where it would be exposed to organic gases (ketone, acetone, ethanol, toluene, etc.) may cause the sensor surface to become contaminated, increasing humidity measurement error.

  • Ensure that the Z2000 Humidity Sensor is not exposed to high concentrations of chemical solvents for extended periods of time during use or storage.

  • The sensor may also be contaminated by organic gases released by vinyl chloride or packaging materials.

  • When not using the Z2000 Humidity Sensor, seal it along with a package of desiccant in the polyethylene bag in which it was shipped and store it in a cool, dark place.

  • Exercise care to avoid condensation. The sensor is particularly prone to condensation in environments where the temperature changes rapidly.

  • Proper operation is not guaranteed in the event that conditions diverge from the indicated operating (storage) environment.

  • Changes in humidity (to high humidity from low humidity or to low humidity from high humidity) will affect measured values due to hysteresis. The Z2000 Humidity Sensor’s measured values are affected within a range of about 3% RH.