TBRG400 Tipping Bucket Rain Gauge

USER GUIDE FOR TBRG400 TIPPING BUCKET RAIN GAUGE

TBRG400-01-MN-10

AUG-2020

This document is applied for the following products

SKU

TBRG400

HW Ver.

1.0

FW Ver.

1.0

Item Code

TBRG400-01

Tipping Bucket Rain Gauge, Dry-Contact Pulse Output, 304SS, Max 10mm/Min, 4% Accuracy

1. Introductions

TBRG400 is Tipping Bucket Rain Gauge Sensor, an instrument for testing rainfall in the nature. In order to meet the requirement of information transmission, processing, recording and display, the amount of rainfall is converted to pulse output. It can be widely used in weather stations, hydrometric stations, agriculture & forestry, defense & field monitoring stations. It can provide the original data for flood-prevention, water-supply system, and reservoir water management in plant.

TBRG400-H1.png

2. Specification

Rainfall collector

Diameter :φ200mm, height: 350mm

Measured rainfall intensity

Max: 4mm/min

Allow rainfall intensity

Max: 10mm/min

Resolution

0.1mm, 0.2mm

Accuracy(2mm/min)

±4%

Maximum load voltage

30VDC(pulse output)

Maximum load current

20mA(pulse output)

Output

Reed switch pulses

Operating temperature(no freeze)

-20-+80℃

Main material

Collector: 304SS, tipping bucket: ABS

Tipping bucket

Single

Heating(optional)

Heating power: approx.1000W

Weight(unpacked)

3.5kg

3. Working Process

Rainfall is captured in the 200mm diameter collector funnel and is directed through a delivery pipe to fill a divided ABS injection molded tipping bucket device.The bucket is pivoted through its center and has a preset calibration to tip for 0.2 mm of rainfall. When the bucket is “full”, it pivots and empties - this action magnetically closes and opens a reed switch, sending a pulse signal to the data logger or electronic counter. Through this tipping “seesaw” action, the other side of the bucket is aligned to receive the flow from the delivery pipe. This recording and tipping cycle continues with rainfall.

TBRG400-H2.png

4. Electrical Connections

Connector Pulse
Pin 1 (Red/Brown) V+
Pin 2 (Black/Blue) V-
Pin 3 (Yellow) N/A
Pin 4 (Green) N/A