Product manual

SPECIFICATION

• SPECIFICATION

   

  product name：	Temperature and humidity module
  Model：	MHTR03
  version：	V1.0
  Creator：	He Genwen
  reviewed by：	Yuan Chao

   

  

  Modify Record Table：

   

   

   

  version	change content	Changed by	change date
  V1.0	new-built	He Genwen	2020-4-24

   

  1、Product Introduction

  MHTR03 is a humidity sensitive resistor type and NTC thermistor type temperature and humidity module. The sensor signal adopts analog voltage output mode, with stable performance and can be mass-produced.

  2、scope of application

  Industries such as warehousing, tobacco, electricity, pharmaceuticals, etc; Temperature and humidity instruments, humidification equipment, dehumidification equipment, high-end air conditioning and other products.

  3、Dimensional diagram (dimensional tolerance ± 0mm)

   

   

   

  

  

   

   

   

   

   

   

   

  4、Electrical performance

   

  parameter	condition	Min	Typ	Max	unit
  Supply Voltage		4.75	5.00	5.25	V
  Humidity voltage output range		0		3	V
  consumption	test	0	2	5	mW
  Humidity measurement range		20		95	%RH
  Humidity accuracy	25 degrees		±3		%RH
  Temperature Accuracy	0-50 degrees		± 1		℃
  Operating temperature range		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 Relationship between humidity and output voltage：

  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 0.6-2.85V

   

  Serial Number	name	describe
  1	V	5V power supply positive terminal
  2	H	Humidity signal output
  3	G	5V power supply ground terminal
  4	T	Temperature signal output

  5.2 Application Circuit：

   

  

  Note: The function of the electrolytic capacitor in the diagram is to make the circuit more stable. If the customer has no conditions, it can be omitted and the humidity output voltage can be directly collected

   

  Serial Number	project	test method	Specification value
  1	impact resistance	Repeat 5 natural drops from a height of 1.5 meters on a hard floor	No hardware damage, normal electrical performance output
  2	Vibration resistance	The frequency range is 10-55Hz, and the amplitude is 1.5mm, vibrating in the X-Y-Z direction for 1 hour each	No hardware damage, normal electrical performance output
  3	heat resistance	Temperature 60 degrees, humidity below 35% RH, left in the air for 800 hours	±5%RH within
  4	cold resistance	Temperature 10 degrees, humidity 70% RH, left in the air for 800 hours	±5%RH within
  5	Moisture resistance	Temperature 50 degrees, humidity 90% RH, left in the air for 600 hours	±5%RH within

  6

  Resistance to organic solutions

  Room temperature organic solution ethanol gas and acetone gas (30 minutes each)

  ±5%RH within

   

  7、Product usage precautions

  1. Avoid touching the surface of moisture sensing components with your fingers, as sweat can contaminate the moisture sensing film and cause performance drift; Please wear finger cots when contacting sensors;

  2.The direction of power supply connection should be correct;

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

  8、Warning and personal injury

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

  9、  NTC   10K   1%   3435 impedance-meter

   

  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: K Ω)