Shanghai Laboratory Instrument Works Co., Ltd.
 

Series WGD/SJ Alternating Low/High Temperature Damp Heat Testing Chambers

 
WGD/SJ73
WGD/SJ4025
WGD/SJ 7005
 

The series of testing chamber is designed with a wide Damp Heat regulating range in conformity to National Standard GB/T2423.1, 2, 3, and 4: Test A: Low temperature testing method; Test B: high temperature testing method; Test Ca: Constant Damp Heat testing method and Test Db: alternating Damp Heat testing method for Electric/electronic Product Environment Test.

This type of testing chamber is designed in accordance with National Standard GB/T10592, Technical Conditions for High/low Temperature Testing Chamber and GB/T10586, Technical Conditions for Thermo-heat Testing Chamber. Thanks to the ideal temperature &humidity control mode adopted---balanced temperature & humidity regulating mode, it boasts of automatic acquirement of high temperature/high Damp Heat testing environment.

 

Main Technical Data

Model
WGD/SJ4025A
WGD/SJ 7025A
WGD/SJ 41A
WGD/SJ 71A

Temp. & Humidity control system

Balance Temperature & Humidity Control System

Refrigeration system

Hermetically sealed mechanical single-stage refrigeration system (wind cooling)

Hermetically sealed mechanical cascade refrigeration system (wind cooling)

Power supply

AC 380V 50Hz 3-phase 4-wire

Performance

☺1

Temp. regulating range

-40ºC+85ºC

-70ºC+85ºC

-40ºC+85ºC

-70ºC+85ºC

Humidity regulating range

45%98% R.H

Thermostatic fluctuation

High temp. : ±0.5ºC; Low temp. : ≤±1ºC 

Temp. & humidity deviation

High temp. : 2ºC; Low temp. : 3ºC;
+2
% RH
-3

Temp. rise & reduce rate

Every 5min≤±1ºC/min

Cubage

250L

1000L

Dimensions of working chamber (D×W×H)

520×600×800 mm

1000×1000×1000 mm

Over all dimensions (D×W×H) ☺2

1100×1060×1970 mm

1750×1550×2200 mm

☺1. This data is tested at environment temp. + 20ºC in the condition of no-float load.

☺2. Except protuberant part.

3. If products and model are changed, no notice.

Other Products Main Technical Data

ID
 Model
 Dimensions of working chamber (mm) D×W×H
 Temperature regulating range
 Other Technical Data

1

WGD/SJ7005

350×320×450

-70ºC +85ºC

Thermostatic fluctuation:
High: ≤±0.5ºC
Low: ≤±1ºC

Temp. uniformity: ≤2ºC

Temp. deviation:
High: ≤±2ºC
Low: ≤±3ºC

Relatively humidity: 45%98% RH

Relatively humidity deviation:

+2
%RH
-3

2

WGD/SJ8000070057010

400×400×500

-70ºC +85ºC

3

WGD/SJ7015

500×500×600

-70ºC +85ºC

4

WGD/SJ7025

520×600×800

-70ºC +85ºC

5

WGD/SJ7050

620×800×1000

-70ºC +85ºC

6

WGD/SJ71

1000×1000×1000

-70ºC +85ºC

7

WGD/SJ4005

350×320×450

-40ºC +85ºC

8

WGD/SJ4010

400×400×500

-40ºC +85ºC

9

WGD/SJ4015

500×500×600

-40ºC +85ºC

10

WGD/SJ4025

520×600×800

-40ºC +85ºC

11

WGD/SJ4050

620×800×1000

-40ºC +85ºC

12

WGD/SJ41

1000×1000×1000

-40ºC +85ºC

13

WGD/SJ2005

350×320×450

-20ºC +85ºC

14

WGD/SJ2010

400×400×500

-20ºC +85ºC

15

WGD/SJ2015

500×500×600

-20ºC +85ºC

16

WGD/SJ2025

520×600×800

-20ºC +85ºC

17

WGD/SJ2050

620×800×1000

-20ºC +85ºC

18

WGD/SJ21

1000×1000×1000

-20ºC +85ºC

 
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