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NJDR-3 Concrete rapid freeze-thaw testing machine

简要描述: GB/T50081-2002, GB/T50082-2009, JTGE30-2005, JG/243-2009, JGJ/T193-2009, ASTM C666, SL/T352-2020, JTS/T236-2019, JTG3420-2020, T0596-2020

产品介绍

1. Standard:

GB/T50081-2002, GB/T50082-2009, JTGE30-2005, JG/243-2009, JGJ/T193-2009,

ASTM C666, SL/T352-2020, JTS/T236-2019, JTG3420-2020, T0596-2020

 

2. Product features:

 

The main functions of the system include:

Display and record specimen center temperature and circulating liquid temperature;

Freeze-thaw process conversion and circulating liquid temperature control;

Number of freeze-thaw cycles control;

Compressor exhaust pressure, suction pressure and motor unit temperature rise protection;

Circulating liquid flow protection and over temperature protection;

Motor overload protection, etc.

The whole freeze-thaw test process is completely automatic, photoelectric alarm is given in case of failure, and corresponding protection is taken by itself.

 

The equipment adopts the internal and external machine separation layout, the cooling and heating and circulating pump are placed outdoors, and the test box and control system are placed indoors, which effectively solves the problem of high temperature and noise in the test room caused by the integrated machine.

Model

NJDR-9

NJDR-5

NJDR-3

Specification

Separated

Separated

Integrated

Main   parameter

Max specimen   quantity

28pcs

16pcs

10pcs

Temperature

-25℃25℃

Uniformity

Between   every two points2℃

Test   precision

±0.5℃

Display Resolution

0.1℃

Outside   machine dimension

1.3*0.5*1.23m

1.35*0.6*1.4m

1.65*0.85*0.88m

Inside   machine dimension

1.53*0.8*0.85m

0.95*0.6*1.4m

Specimen(mm)

100*100*400

Working power

9.7KW

6.7KW

3.5KW

Freeze-thaw   cycle

2.54hoursThe melting   time is not less than 1/4 freeze-thaw cycle

Medium

45℃ Antifreeze   solution

Medium qty

The liquid   surface should be higher than specimen 10~15mm.

Voltage

3N380V  50Hz

 


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