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KH300AG: Universal Paperless Temperature Chart Recorder

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Quick Details

Warranty: 1 years
Place of Origin: Fujian China
Screen: bargraph, trend, curve, digital,circular
Size: 96*96mm
Item Name: KH300AG: Universal Paperless Tempeature Chart Recorder
Model Number: KH300AG
Certification: CE
Customized support: OEM
Channels: 1,2,3,4,5,6
Universal Input: RTD, pt100, thermocouple,V,mA,mV
Brand Name: Kehao
USB transfer: USB Flash drive
Commuication: RS485 Modbus-RTU protocol
Color LCD: 320x240pixels, TFT color LCD
Packaging Detail: bubble bag then into box FOR Universal Paperless Temperature Chart Recorder
Selling Units: Single item
Single package size: 20X20X15 cm
Single gross weight: 0.8 KG
Package Preview: https://sc04.alicdn.com/kf/H6609a6cbc0d64b8e8ecc375fec0adea54.jpg_640x640.jpg
Xiamen Kehao Automation Co., Ltd.
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Manufacturer, Trading Company
Response Time
On-time delivery rate
US$ 6,000+
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Product Description



Universal Colored Paperless Circular Chart Recorder
.6 input:PT100,T.C.,V,mV,mA
.2 Relay/RS485/Printer/USB

Kehao New Design-Paperless Circular Chart Recorder


KH300AG is the low cost mini paperless recorder,(96*96mm, up to 6 channels,used the high technoloogy, low power consumption, mini size designed.it is high accuracy, universal input, to be aimed to monitor, record, analyse the process in various industrial application



small size: 96*96*85mm, 3.5 inches,320*240TFT LCD sreen display

Universal input: thermcouple, RTD pt100 , 4-20mA, 0-10mA, 0-5VDC, 1-5VDC, 0-10VDC, 0-500mV


High accuracy, 0.2 grade

8MB memory for long term data records

max 6 channels input

max 2 relay alarms

max 2 points for 4-20mA, or one point 24VDC auxiliary power supply for 2 wires system


Various data display: circule chart, bargraph, trend, single and multi channels



The history data can be store in USB memory, transferred to the PC directly for thr dataanalyse, play and plug, easy to operate.Als to be printed by the analyse software to ouputthe data in Excel or in curve format.




the user can access the data in the screen as well as the as site from the remote place via RS485, rs232 serial interface. MODUS-BUS communication protocol can ba available for confugoration with MCGS and other professional software



Directly connect with the mini printer, to print the history or real time data in curve or in digit format.



Accuracy: 0.2 grade

Display: 3.5 inches,320*240TFT LCD sreen display

Sampling rate: less than 1 s

CMR ration: 85-110db

Power supply: 100-240VAC, 47-63hZ, 24VDC

Power consupmotion: max 5VA

Temperature shift: 50ppm


Input signal:

T/C , RTD, A DC, V DC, 0-20mV, 0-60mV, 0-100mV, 0-500mV

Isolation: 1000VAC between channels and ground, 400VAC between channels,

RTD: three wires, 2.5mA , MAX 10Ohmn per wire

T.C : internal resitor not more than 1000 Ohm, CJC tolerance +-2 degree

Independence: 500k Ohm for 0-5V or 1-5V, 250k Ohm for 4-20mA, 500k Ohm for 0-10mA, 20M Ohm for other sgnal input



Output signal:

Relay: max 2 points, 250VAC , 3A, NO OR NC

Retransmittion: 4-20mA , up 2 points

24VDC , 50mA auxiliary power supply

Communication: RS232, RS485 MODBUS-RTU protocol

Printing: RS232 print


Alarm function: up to 4 points per channls

Alarm type:High , low , higher, lower limits



CPU: 3.2 bits, high performance, integrated ARM

Memory tyoe: flash memory

2 GB USB memory

Record intervals: 1-3600s, set flexibly

Record time: 1s interval, 3 days

Mounting method: panel mounted( vertical panel)

Materials: ABS FOE CASE and bezel

Terminal: M5 screw terminal

Working temperature : 0- 50 degree

RH: 0-85%

PC software: compatible with windows 2000/XP/VISTA 

Packaging & Shipping


Packaging: PC into bubble bag with , then into carton box 

By air: DHL, TNT etc courier


Our Services


We can offer you good technical support  and offer good warranty for afterservice as proffesional manufacturer

Warranty: One year

During warranty, if the ordered goods after delivery are damaged with error caused only by itself quality problem, the goods can be returned to Kehao for free repair and maintenance.  However, Kehao will be not responsible for free repair and maintenance if the goods is damaged and with error caused by user’s man-made and force majeure factor.

Company Information




Company Strength   


As a proffesional and experienced manufacturer , we can supply high quality and performance color paperless recorder, paperless recorder, tempeature recorder,paperless chart recorder, data logger, teperature data logg 

Kehao is a proffesional manfuacturer, we can supply you paperless recorder, chart recorder, circular chart recorder, temperature recorder, pressure recorder, data logger

Our Advantage