Product manual

SPECIFICATION

• product name：	Humidity sensor
  Model：	SJL16ASW
  version：	V1.0
  Creator：	He Genwen
  reviewed by：	Yuan Chao

   

   

  1、 Overview

  This product is a resistance type polymer humidity sensor (SJL16ASW) with high humidity resistance, fast response speed, small humidity hysteresis, stable and reliable performance, good consistency and interchangeability. The product features compatibility with mainstream humidity sensors in the industry.

   

  2、 External dimensions

  Unit: mm (± 0.5)

  

  3、 application area

  Home appliance industry: air conditioning, humidification equipment, dehumidification equipment, air fresheners and other electrical appliances;

  Industrial agriculture: atmospheric environment detection, industrial process control, measuring instruments, greenhouse planting, warehousing, food preservation, etc. Gift industry: thermometers, electronic calendars, radio clocks (RCC), digital photo frames, home weather stations, etc;

   

  4、 Model specifications

  model SJL16ASW；

  The product meets ROHS and REACH environmental requirements.

   

  5、 Electrical performance

  5.1、Working voltage and frequency

  working voltage：Vpp≤5.5V/AC；

  Operating Frequency：0.5~2k Hz；

   

  5.2、Working temperature and humidity

  operation temperature：0~50℃；

  Working humidity：20~95%RH；

   

  5.3、Stability and temperature characteristics

  stability： ≤2%RH/year；

  Temperature：≤0.5%RH/℃；

   

  5.4、Humidity detection accuracy

  measurement accuracy：≤±3%RH；

  5.5、response speed

  Response time: ≤ 20 seconds

   

  5.5、water resistance

  Soak in water for 10 minutes, after natural drying and recovery, humidity change ≤ 2% RH

  Soak in water for 30 minutes, after natural drying and recovery, humidity change ≤ 5% RH

   

  6、 Standard calibration conditions

  6.1、Temperature of 25 ℃ (± 1 ℃), measurement frequency of 1KHZ, set working voltage to 1V/AC (sine wave); 6.2. The testing equipment is an AC bridge (LCR) (note: ordinary multimeter resistance range testing cannot be used); 6.3. Adopting a constant humidity generating device: a constant humidity alternating current box.

   

  7、Product Impedance Humidity Characteristics Data Table

  Refer to Attachment 1

   

  8、 Reliability testing

  Standard test conditions: ambient temperature of 25 ℃, measurement frequency of 1kHz, measurement voltage of 1V/AC (sine wave) as the reference.

  Characteristic testing, before testing, place the humidity sensor in dry air at 25 ℃/30% RH for 30 minutes, and the humidity generating device will activate

  Measure the impedance value after placing the humidity sensor at 60% RH for 30 minutes.

  Testing device: LCR bridge (TH2810), constant temperature and humidity experimental box, handheld ROTRONIC high-precision temperature and humidity meter (± 1% RH)

   

  Serial Number	project	test method	Standard value
  1	Pin strength	Pull the pin vertically in the direction of the 10N shell for 10 seconds	No damage, pin detachment, and normal electrical performance
  2	impact resistance	On a hard floor with a height of 1m, free fall 3 times	No damage, pin detachment, and normal electrical performance
  3	Vibration resistance	Frequency 10-55Hz, amplitude 1.5mm (10~55~10Hz) in the X-Y-Z direction Vibration for 2 hours each	No damage, pin detachment, and normal electrical performance

   

  4	soldering resistance	Immerse the sensor pins into a 350 degree tin bath, Pick up in 5 seconds and repeat twice;	±5%RH within
  5	cold resistance	Place in air for 1000 hours at temperatures below -10 ℃	±5%RH within
  6	Moisture resistance	Temperature 50 ℃, humidity 90% RH Placed in the air for 1000 hours	±5%RH within
  7	Temperature cycling	-Leave at 10 ℃ for 30 minutes, Heat up to 50 ℃/60% RH and let it stand for 30 minutes; Cycle 100 times	±5%RH within
  8	Humidity cycle	Place at 25 ℃ and 30% RH for 30 minutes, then transfer to 90% RH for 30 minutes and repeat 100 times	±5%RH within
  9	Solvent resistance	At room temperature, place the sensor in organic gas, alcohol, and acetone air for 30 minutes	±5%RH within
  10	Power on placement	Generally indoor (normal temperature and humidity) 1kHz, 5Vpp square wave, placed continuously for 1000 hours	±5%RH within
  11	water resistance	Soak in water for 30 minutes, let it dry and recover	±5%RH within

   

  Note: 1 The standard value is the impedance of the humidity sensitive resistor measured in an environment of (25 ℃, 60% RH);

  2.After each reliability test, place the sensor in air at room temperature and humidity for 24 hours, and then measure the humidity deviation corresponding to the impedance change.

   

  9、 package

  10.1、The sensor without a shell is placed flat in a blister box, and one layer of blister box contains 50 sensors;

  10.2、20 layers of blister boxes stacked together, with an empty blister box placed on top instead of the lid to prevent the sensor from falling off; 10.3. Wrap and fix with single-sided adhesive and place it in a paper box; Paper box size (mm): L190 * W150 * H55, with a total of 1000 sensors; 

• 10.4、Choose different sizes of cardboard boxes for packaging based on the order quantity;

  10.5、Sensors with shells are packaged in bags;

   

  10、 Specification

  license agreement

  The above content is provided by Shenzhen Yuanjian Sensing Technology Co., Ltd. All rights reserved. Without the written permission of our company, no paragraph or chapter in this manual may be excerpted, copied, or copied or disseminated in any form. Otherwise, all consequences shall be borne by the violator, and our company reserves all legal rights.

  Our company reserves the right to modify the product specifications described in the manual without prior notice. Before placing an order, please contact your local agent for the latest specifications of this product.

   

  warn

  Use and personal injury

  Do not use this product on safety protection devices or emergency stop devices, as well as in any application where failure of this product may cause personal injury; Before using this product, please carefully read the content in this manual;

  
  

• Prohibit use near flammable gases

• Prohibit use in places with flammable and explosive gases;

• Do not directly touch the sensor

• To prevent contamination of the moisture sensitive film and avoid direct finger contact with the surface of the components; Sweat can contaminate the moisture sensitive film and cause performance drift. When in contact with sensors, please wear anti-static finger covers;

• Avoiding chemical reactions

• Avoid using in environments containing the following gases: salt, sulfur dioxide, halogen gases, ammonia, alcohol, ethylene glycol ether, aldehydes, etc; work environment

• Suggest using a temperature range of -10 ℃ -60 ℃ and a humidity range of 0-100% RH. Exceeding the recommended range may cause temporary drift in the measurement results; This product is not sensitive to light, but prolonged exposure to sunlight or ultraviolet radiation can also accelerate aging;

• Three Guarantees Service

• Under normal environmental conditions, this product promises three guarantees of service within one year.

• Attachment 1: SJL16ASW Temperature and Humidity Characteristics Impedance Table

•  

• 	0℃	5℃	10℃	15℃	20℃	25℃	30℃	35℃	40℃	45℃	50℃	55℃
  10%RH	51972	44033	38439	33961	30463	26108	22641	19903	17544	16008	14472	12937
  15%RH	36120	30461	24760	20172	16134	12875	10465	8745	7190	6248	4997	4195
  20%RH	20882	16539	13132	9858	7721	5926	4697	3774	3067	2415	1857	1438
  25%RH	9903	7547	5778	4343	3287	2403	1887	1531	1213	920	701	534
  30%RH	4517	3287	2415	1857	1353	948	755	540	408	315	245	183
  35%RH	2140	1508	1056	772	575	405	302	217	169	127	97	77
  40%RH	996	744	480	350	260	176	129	98	72	55	42	32
  45%RH	485	347	219	155	112	79	61	47	35	27	21	16
  50%RH	243	165	106	76	56	41	31	24	18	14	11	9
  55%RH	129	85	55	39	29	22	16.4	12.7	9.8	7.7	6.2	5.1
  60%RH	69.1	46.0	30.8	21.4	16.8	13.0	9.9	7.7	6.2	4.8	3.9	3.1
  65%RH	35.6	23.8	16.9	12.3	9.8	7.6	6.1	4.8	3.8	3.0	2.6	2.2
  70%RH	20.2	13.5	10.0	7.6	6.2	5.0	4.0	3.2	2.6	2.2	1.8	1.6
  75%RH	11.43	7.85	6.02	4.80	3.89	3.20	2.59	2.13	1.75	1.60	1.37	1.22
  80%RH	6.60	4.70	3.72	3.11	2.58	2.20	1.74	1.52	1.29	1.21	1.06	0.91
  85%RH	4.05	2.93	2.48	2.03	1.80	1.50	1.28	1.05	0.98	0.90	0.83	0.75
  90%RH	2.35	1.91	1.69	1.39	1.25	1.10	0.95	0.81	0.73	0.66	0.59	0.59
  95%RH	1.45	1.31	1.09	0.95	0.87	0.80	0.73	0.65	0.58	0.51	0.51	0.44

• Attachment 2: SJL16ASW Temperature and Humidity Characteristic Curve

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