Product Manual

Product Specification Book

• Product Specification Book

   

  Product Name:	Temperature and humidity module
  Product model:	MHTR03
  Version:	V1.0
  Formulator:	He Genwen
  Reviewer:	Yuan Chao

   

  

  Modify the record table:

   

   

   

  Version	Change content	Change people	Change date
  V1.0	New	He Genwen	2020-4-24

   

  1. Product Introduction

  MHTR03  It is a wet varistor type, NTC  Thermistor temperature and humidity module, the sensor signal adopts analog voltage output mode, has stable performance and can be mass-produced.

  2. Scope of application

  Warehousing, tobacco, electricity, pharmaceutical and other industries;Temperature and humidity instruments, humidification equipment, dehumidification equipment, high-end air conditioning and other products.

  3. Size diagram (Dimensional tolerance ±0.It's own mm)

   

   

   

  

  

   

   

   

   

   

   

   

  4. Electrical performance

   

  parameter	condition	Min	Typ	Max	unit
  Power supply voltage		4.75	5.00	5.25	V
  Humidity voltage output range		0		3	V
  Power consumption	test	0	2	5	mW
  Humidity measurement range		20		95	%RH
  Humidity accuracy	25 Spend		±3		%RH
  Temperature accuracy	0-50 Spend		± 1		℃
  Temperature range for use		0		50	℃
  Temperature measurement range		0		50	℃

   

  4.1 Standard humidity voltage output: 25 ℃， Input voltage =5V， Output voltage unit (V)；

   

   

  humidity

  20%

  30%

  40%

  50%

  60%

  70%

  80%

  90%

  95%

  Voltage

  0.60

  0.90

  1.20

  1.50

  1.80

  2.10

  2.40

  2.70

  2.85

   

   

  4.2 Humidity and output voltage relationship:

  Humidity conversion formula Humidity = Output voltage ÷ 0.03V   %RH

   

   

   

  4.3 Linear curve of voltage output and humidity:

  Humidity measurement 20% RH—95%RH， Voltage output 0.6-2.85 V

   

  Serial number	name	describe
  1	V	5V  Power supply positive end
  2	H	Humidity signal output
  3	G	5V  Power supply ground
  4	T	Temperature signal output

  5.2 Application circuit:

   

  

  Note: The electrolytic capacitor in the figure is to make the circuit more stable. Customers can directly collect the humidity output voltage without conditions.

   

  Serial number	project	Test Methods	Specification value
  1	Impact resistance	1.5 meters high repeat 5 natural drops on hard floor	Hardware is not damaged, electrical performance output is normal
  2	Vibration resistance	Number of frequency is 10-55 HZ， Amplitude 1.5 mm  Towards X-Y-Z  Vibration in each direction for 1 hour	Hardware is not damaged, electrical performance output is normal
  3	Heat resistance	Temperature 60 degrees, humidity 35% RH  The following is placed in the air for 800 hours	±5%RH  Within
  4	cold resistance	Temperature 10 degrees, humidity 70% RH  Leave in the air for 800 hours	±5%RH  Within
  5	Wet resistance	Temperature 50 degrees, humidity 90% RH  Leave in the air for 600 hours	±5%RH  Within

  6

  Organic solution resistance

  Organic solution for room temperature, ethanol gas, acetone gas (30 each min)

  ±5%RH  Within

   

  7. Precautions for product use

  1. Avoid contacting the surface of the wet-sensitive element, and sweat will contaminate the wet-sensitive film and cause performance drift;Please bring finger covers when contacting the sensor;

  2. The power direction connection method must be correct;

  3. Do not let the product work in an environment where condensation is long, and do not let the product come into contact with water for a long time;

  8. Warnings and personal injury

  Do not use this product on safety protection devices or emergency stop devices, and in any application that may cause personal injury due to failure of the product;Please read the contents in this manual carefully before using this product;

  Nine, NTC   10K   1%   3435  Impedance table

   

  T	R	T	R	T	R	T	R	T	R
  -39	209.1	-4	33.74	31	7.982	66	2.493	101	0.959
  -38	197.1	-3	32.23	32	7.698	67	2.42	102	0.9355
  -37	185.9	-2	30.8	33	7.417	68	2.349	103	0.9127
  -36	175.4	-1	29.45	34	7.153	69	2.28	104	0.8906
  -35	165.6	0	28.16	35	6.899	70	2.214	105	0.8691
  -34	166.4	1	26.92	36	6.658	71	2.15	106	0.8482
  -33	147.8	2	25.75	37	6.424	72	2.08	107	0.828
  -32	139.8	3	24.64	38	6.2	73	2.029	108	0.8082
  -31	132.2	4	23.58	39	5.986	74	1.971	109	0.7892
  -30	125.1	5	22.58	40	5.781	75	1.916	110	0.7707
  -29	118.4	6	21.62	41	5.583	76	1.862	111	0.7527
  -28	112	7	20.72	42	5.393	77	1.81	112	0.7351
  -27	108.1	8	19.85	43	5.211	78	1.78	113	0.7181

  -26	100.5	9	19.03	44	5.036	79	1.711	114	0.7015
  -25	95.3	10	18.25	45	4.867	80	1.665	115	0.6854
  -24	90.37	11	17.5	46	4.706	81	1.619	116	0.6698
  -23	85.73	12	16.78	47	4.551	82	1.575	117	0.6546
  -22	81.37	13	16.1	48	4.401	83	1.532	118	0.6398
  -21	77.25	14	15.45	49	4.258	84	1.481	119	0.6254
  -20	73.38	15	14.83	50	4.12	85	1.451	120	0.6114
  -19	69.71	16	14.24	51	3.987	86	1.413	121	0.5978
  -18	66.28	17	13.68	52	3.86	87	1.376	122	0.5848
  -17	62.89	18	13.14	53	3.737	88	1.339	123	0.5717
  -16	59.92	19	12.83	54	3.619	89	1.304	124	0.5591
  -15	57.01	20	12.14	55	3.505	90	1.271	125	0.5489
  -14	54.27	21	11.68	56	3.395	91	1.238
  -13	51.68	22	11.23	57	3.29	92	1.206
  -12	49.23	23	10.8	58	3.188	93	1.178
  -11	46.91	24	10.39	59	3.09	94	1.145
  -10	44.72	25	10	60	2.996	95	1.116
  -9	42.63	26	9.625	61	2.904	96	1.088
  -8	40.68	27	9.267	62	2.816	97	1.06
  -7	38.78	28	8.924	63	2.731	98	1.034
  -6	37.01	29	8.597	64	2.649	99	1.008
  -5	35.33	30	8.283	65	2.57	100	0.9832

  (Temperature unit: ℃；      Impedance unit: KΩ)