ZiFiSense WLL2ZT Water Pressure Sensor Instruction Manual

ZETA® Low-Power Wide Area Networks
ZETA Water Pressure Sensor

Water Pressure Sensor
Copyright Statement
ZiFiSense owns the copyright on this specification. No part of this specification may be reproduced in any form or means, without the prior written consent of ZiFiSense.

Disclaimer
This specification is preliminary and is subject to change at any time without prior notice. ZiFiSense assumes no responsibility for any errors contained herein. ZiFiSense is not responsible for any patent infringement of third parties on its use or as a result of its uses. Other products/services not certified by the patent license, shall be deemed within patent ownership of ZiFiSense.

Product Description

ZETA Water Pressure Sensor is a low power consumption module with an external water pressure detector that can report the water pressure readings periodically with adjustable alarm threshold values. The pressure sensor is installed at the inspection point by modifying the pipeline.

Applications

Water pressure detection of booster pump, fire pump, live water pump pipeline

Appearance

Features

Wireless transmission
Battery-powered, low power consumption
Easy to install, high sensitivity
Reliable detection
Real-time transmission

Product parameters

Product No.

| WPZTZT92|

---|---|---
Wireless Features| Transmission protocol| ZETA
Frequency band| 920-925 MHz
Output power| 20±3 mW
Electrical Features| Power supply| Battery, ER14505
Battery capacity| Sensor: 2700 mAh @ 12V ZETA Module: 2700mAh @ 3.3V
Stand-by current| ≤ 10 μA
Working current| ≤ 70 mA
Physical Features| Size| 16011060 mm
Enclosure material| Aluminum
Waterproof level| IP65
Antenna| External glue stick antenna
Sensor Characteristics| Range| 0~0.6Mpa (customizable)
Precision| ±1%Mpa
Working Environment| Operating temperature| -20℃~+75℃
Storage temperature| -30℃~+85℃

Packing List

Installation

There are two installation methods: wall-mounted, pole-mounted.

Wall-mounted

7.1.1.Auxiliary material

7.1.2.Installation instructions
Bracket installation
Use an M6 Allen key to open the screw on the left to fix the bracket

Power on
Use an M6 Allen key to open the case

Install the battery and connect the sensor cable

Pole installation

7.2.1.Auxiliary material

7.2.2.Installation instructions
Bracket installation
Use an M6 Allen key to open the screw on the left to fix the bracket.

Fixed holding pole
Fix the device to the pole.

Power on
Use an M6 Allen key to open the case

Install the battery and connect the sensor cable

Waterproofing

When installed outdoors or indoors in a humid place, the antenna port and sensor inlet of the device need to be waterproofed.

Three layers of protection, from the inside to the outside are adhesive tape- clay-adhesive tape:
Use waterproof tape to wrap around the interface:

Cut a piece of waterproof glue, stretch it and wrap it along with the RF port

Finally, use waterproof tape to wrap it again:

Use of Device

Steps for usage

• Place the device in the range covered by the ZETA network, install the battery, and wait for the device to go online.
• When the device is online, report the current device status once, and check whether the device is detected correctly according to the reported water pressure status. If it is not accurate, you need to check whether the range of the device and the sensor are consistent. Before the sensor is installed, an initial calibration can be issued to avoid detection errors.
• According to the use scenario, set the alarm to enable state and alarm threshold and other policy configurations.
• Daily maintenance and data viewing.

Support function

• Report version number: Only report once after power-on.

• Status report: normal heartbeat/alarm/release alarm, the heartbeat status will be reported once after power on.

• Set/query reporting heartbeat cycle-h: Set or query the currently set heartbeat reporting cycle by the hour. (Range: 1-24 hours, default value: 2 hours)

• Set/query reporting heartbeat cycle-m: Set or query the currently set heartbeat reporting cycle in minutes. (Range: 1-65535 minutes)

• Set/query the alarm cycle: When the detected water pressure exceeds the set threshold, the alarm will be reported according to the set cycle.
  (Range: 0-255 minutes, default value: 0, 0 means that the alarm is only reported once, without periodic reporting.)

• Set/query alarm threshold: upper alarm threshold and lower alarm threshold. Once the detection value exceeds the set alarm threshold, the device will immediately report an alarm. (Range: 0~2.55, unit: 0.01MPa, a value of 0xFF means that there is no such threshold. Note that the lower threshold must be lower than the upper threshold when setting)

• Setting/querying the alarm threshold: To avoid repeated alarms caused by the fluctuation of the device’s collection value within the alarm threshold, the default value is generally used, and there is no need to set it.

• Set/query alarm enable: turn on/off the threshold alarm.

• Set/query collection period: the period for the device to collect sensor information (range: 0-65535 seconds, when the value is 0, it means real-time collection).

• Setting/query range: It needs to be set according to the range of the sensor. When the range is inconsistent, the detected water pressure value will be wrong.

• Set/query initialization calibration: reset the current detection value to 0. After the device receives the information, it starts calibration and
  feeds back the current calibration value.

• Query device status: query the current status of the device, including the current water pressure value and alarm enable information.

• Query version number: Actively query the software version number of the current device.

Common faults and handling

• Ensure ZETA signal coverage
• Ensure that the device is powered on, and the ZETA network device management platform can observe that the ZETA module is online
• Check the battery usage of the device. When the battery is low, replace the battery in time.

FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.
This device complies with FCC PART15 Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Shanghai, China
Room B, 20th Floor, No.
1098 Dongdaming Road
(Pujiang International Financial Plaza),
Hongkou District,
Shanghai +86 (0) 21-61320820

Xiamen, China
Room 803, Building A-05,
Software Park Phase III,
Jimei District, Xiamen, P.R. China
+86 (0) 592 6070310

Cambridge, UK
3 Charles Babbage Road,
Cambridge,
CB3 OGT United Kingdom
+44(0) 1223 491 099

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