Product Description

TD304 Tide GaugeIt is a high-precision instrument used for monitoring and recording tide (or water level) and water temperature. According to user needs, the instrument can be optionally equipped with dissolved oxygen, turbidity, and fluorescence (chlorophyll/rhodamine/CD-ROM) sensors. The instrument is controlled by a computer, and various parameters of the instrument, including measurement intervals, integration time, chart data, and air pressure, are set through software menus. All preset programs and calibration coefficients are stored in non-volatile EEPROM memory (electrically erasable read-only memory) to ensure that data will not change or be lost even when the power is disconnected. The electronic components and other components of the instrument are embedded in a high-strength polyurethane shell through vacuum forming technology, ensuring good waterproof performance of the instrument. Users can easily control the on/off of the instrument through a magnetic button or computer keyboard. The well sealed battery compartment can accommodate two replaceable C-type batteries, with very low energy consumption for the instrument. Typically, the two C-type batteries can support continuous operation of the instrument for more than a year. The instrument is equipped with a support bracket that can be fixed at specific positioning points.

TD304 Tide GaugeIt is divided into two types: absolute and reference. The reference type is connected to the outside world through built-in air ducts in connectors and cables. The measured data is stored in physical memory and can be transmitted through RS232 I/O waterproof interface for online monitoring. The instrument is equipped with powerful program software, which facilitates users in data transmission, program settings, and data processing.

TD304 Tide Gauge

characteristic

Compact and efficient design

Long term stable sensors

Integrated temperature sensor

High memory storage capacity

Efficient battery life (can work continuously for 1 year)

Basic control software for Windows

Physical memory output

Online drawing function

Optional parameters: dissolved oxygen, turbidity, and fluorescence

model

TD304A absolute type (total pressure=water pressure+atmospheric pressure), TD304R reference type (water pressure)

TD304 Tide Gauge

parameter

TD304 Tide Gauge

pressure

Range (absolute type): 20, 50, 100, 200, 500 meters *

Range (reference type): 10, 20, 50, 100 meters

Resolution: 0.001dbar (meters)

Accuracy: ± 0.01% FS (0-35 ℃)

● Reaction time: 0.1 seconds

Please specify the depth requirements and model when placing an order

TD304 Tide Gauge

temperature

● Scope:- 2～40℃

Resolution: 0.001 ℃

Accuracy: ± 0.01 ℃

● Reaction time: less than 0.5 seconds

TD304 Tide Gauge

dissolved oxygen

● Sensor type: SAIV205

● Range: 0-20mg/L

Resolution: 0.01mg/L

Accuracy: ± 0.2mg/L

TD304 Tide Gauge

fluorescence

● Sensor type: Seapoint company, Chlorophyll/Rhodamine/Colored Dissolved Organic Matter (CDOM) optional

● Range: 2.5, 7.5, 25, 75ug/L

Resolution: 0.03ug/L

TD304 Tide Gauge

turbidity

● Sensor type: Seapoint Corporation

● Scope: 12.5, 62.5, 250, 750FTU

● Linear: less than 2%

Real time clock: ± 2 seconds/day

Data collection interval: 1 second to 180 minutes

Integral time: 1-100 seconds can be set (during pressure measurement)

Memory: CMOS SRAM， Can store 77000 sets of TD data

Data transmission: RS232 interface, 1200-9600 baud rate

Power supply: 2 3.6V C-type lithium batteries, recommended to use SAFT LS 26500 type (capable of measuring 1500000 sets of data)

Material: Vacuum formed polyurethane and stainless steel (316)

Size: 400mm in length, 60mm in diameter

Weight: 2.5kg in air, 1.3kg in water

Portable case: 534 × 427 × 157mm, total weight 5.5Kg

Attachment: Magnetic switch button; 3-meter data transmission cable; SD200W software; Operation manual; TD304R： 15 meter long connecting cable with air duct and connector