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Introduction

DTLH-246BG / DTLH-2RH-46G Smart low temperature and humidity calibration chamber is a special verification equipment for detecting hair temperature and humidity meter, dry and wet bulb thermometer, digital temperature and humidity meter and other kinds of temperature and humidity sensors. The equipment can automatically adjust the humidity in the temperature and humidity verification box by accurate measurement of temperature and humidity sensor and industrial programmable controller control.High control and testing accuracy, can provide continuous, repetitive humidity measurement, suitable for scientific research and product testing.

Enforcement of verification regulations

JJF1564-2016 Specification for the Calibration of Temperature and Humidity Standard Chambers

JJF 1076-2020 Certification Regulations for Digital Temperature and Humidity Meters

JJF (Military) 165-2017 Specification for the Calibration of Digital Thermo-Hygrometers

Product Functions

HD touch screen: high resolution capacitive screen, clear display, multi-touch support, in line with customer touch operation habits

Wifi control: remote setting of temperature and humidity, starting and stopping equipment, reading current temperature and humidity values and fluctuation status of mobile phone / pad

Status Tip: Real-time calculation and display of temperature and humidity fluctuation, stable state prompt, U disk insertion detection, wifi connection prompt

Curve display: temperature and humidity curve real-time display, support touch zoom translation operation, one-click screenshot save curve to U disk

Data record: temperature and humidity data automatically saved to xls format, one key exported to U disk

Timing boot: with timing boot function, can achieve the equipment before work timing boot, immediately after work, no need to wait.

Multi-point calibration: support temperature and humidity sensor multi-point calibration, temperature sensor indication can be segmented multi-point correction to ensure consistency with the standard device.

Segmental control: temperature and humidity are controlled by piecewise PID, fast and stable ," zero "overshoot, fast and stable humidity from 40 RH to 60 RH only 15 minutes

Fan speed regulation: inner cavity main circulation fan, using frequency conversion speed regulation control, through touch screen, set fan speed;

Multiple protection alarms: constant temperature tank overheating protection, liquid level alarm; rehydration tank water shortage warning; compressor overheating alarm, start and stop protection function

Communication expansion: with network interface, wifi interface, USB interface, RS-232 interface, can communicate with the PC, to achieve data reading, system settings.

Product Features

Advanced technical principles
?Humidity control adopts the principle of moisture occurrence by shunt method, which greatly shortens the time required for stability and improves the verification efficiency compared with the principle of humidity occurrence by double temperature method.
?Temperature control using liquid bath constant temperature plate heating technology, liquid medium heat radiation, temperature more constant, temperature field more uniform
?The unique air circulation design in the measuring chamber ensures no dead angle air flow, and adopts frequency conversion technology to speed the fan to ensure that the internal temperature field is uniform at low speed;

Product intelligence

?Fusion of measurement technology and Internet of things technology to wifi remote control to make measurement easier

?HD touch screen control, multi-touch, greatly improve user experience,

?One-click start, automatic control, shorten the training period for metering personnel

?Timing switch machine, remote switch machine, save time, improve verification efficiency

Excellent quality

?The shell adopts thick plate phosphating, passivation, spray molding, anticorrosion, rust prevention, salt spray resistance;

?SUS304 for internal bile

?High precision sensor, temperature and humidity control with imported high precision platinum resistance Rotronic humidity sensor

Upgraded to Automatic Verification System

?With intelligent image acquisition system, dew point meter and industrial control computer, it can be upgraded to intelligent temperature and humidity meter automatic verification system to realize the automation of verification process, the automatic preservation of records and the automatic generation of reports. The metering personnel are liberated from the reading recording of the temperature and humidity meter, which greatly improves the verification efficiency and reduces the labor cost.

Program running interface

Segmented PID control	Auto-tuning	Multi-point correction
Timing mode	Smart defrost function	Low water level detection function

Etalon selection

Technical parameters