Fan Safety KR939B3 Monitor

NegotiableUpdate on 01/23

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The KR939B3 fan safety monitor is therefore highly suitable for comprehensive vibration safety and temperature rise safety online monitoring of various large and medium-sized rotating machinery and moving equipment, such as fans, water pumps, reducers, bearing seats, rolling friction bodies, etc. It can achieve multiple functions such as independent setting of four parameters, two-level alarm, chain shutdown, network communication, etc.

Product Details

Fan Safety KR939B3 Monitor
summary:
A three channel, intelligent, panel mounted digital measurement and control instrument for the safety monitor of a type of fan.
This table can be conveniently connected withKR-939SB3Type integrated three parameter combination probe matching, realizing the reduction of cooling tower fan gearboxXTheYTheZMonitoring of vibrations in three orthogonal directions and monitoring of lubricating oil temperature inside the gearbox.
Therefore, it is very suitable for comprehensive vibration safety and temperature rise safety online monitoring of various large and medium-sized rotating machinery and sports equipment (such as fans, water pumps, reducers, bearing seats, rolling friction bodies, etc.).It can achieve multiple functions such as independent setting of four parameters, two-level alarm, chain shutdown, network communication, etc.
Fan Safety KR939B3 MonitorIt can also be used as a universal three channel digital display meter, along with various other types4～20mAThe probes or transmitters for signal output are connected and used (such as vibration, temperature, pressure, differential pressure, liquid level, etc.) to form monitoring systems with various ranges and specifications.

IIRequest for functionality and technical specifications

●4～20mAIndustrial standard signal input, provided in the table24VFeed, on-site probes do not require additional power supply.
●Three channel anti-interference remote transmission input, zero and range digital settings.
●Three rows and four positionsLEDDigital display, capable of simultaneously displaying the engineering measurement values of four input channels.
●three-channel'pre-alarm'and'Parking alarm'Two level numerical setting, reportingjingMethod selection.
●Alarm relay electrical contact output, alarm hold function selection, convenient for forming parking interlock control.
●Three channel analog signal isolation transmission output, freely connected to other instruments or computer data acquisition systems.
●Serial digital communication isolation interface, convenient for upper computer network management.
●Internally, a single-chip microcomputer is used as the main control, with fewer peripheral components to improve reliability.
●Using digital filteringWATCHDOGTechnologies such as multiple redundancy, power down protection, and wide voltage switching power supply have a wide range of applications and high resistance.
Panel Instruction Manual [Figure]1］
●Basic error:0.2％FSor±1a character
●Display resolution: three rows and four positionsLEDseven-segment display
●Input signal: Standard4～20mACurrent input
●Alarm output:'pre-alarm'and'Parking alarm'Two level dual group (normally open, normally closed) relay electrical contact output, contact capacitanceAC220V/2AEach channel alarm value can be independently set or disabled.
●Analog output (option):12bitD/Afour-channel(共地)Isolation transmission output,4～20mA(Load resistance)≤500Ω）Or0～10mAor1～5Vor0～5Voutput
●Communication interface (option): Isolated serial communicationRS-485, baud rate300～9600bpsinternal setting
●Feed output:DC24V/200mA
●Power supply:AC85V～265V/10W

3、 Terminal wiring

4、 Operating instructions

（1） Key function

■— During the setting process, press once to return to the previous setting operation, and hold down for more than2Exit the set state in seconds.

EnWhen setting the state, it is used to store the new set value of the parameter and enter the next parameter setting

▲ - Used to increase the set value when setting the state.

▼- Used to reduce the set value when setting the state.

In the set state, if pressed▲ orPress the ▼ key and the value will quickly increase or decrease. Release it and stop.

（2） Power on self-test

⑴ Connect the power supply, input, output, alarm and other wiring of the instrument according to the wiring diagram of the instrument.

Carefully check the wiring of the instrument, and only connect the power after it is correct.

⑶Instrument display after power onHELO,PASSIndicates that the instrument self-test has passed,If displayed-HH-Indicating over limit or broken couple and thermal resistance open circuit,The instrument adopts a human-machine dialogue form to input parameters,Use various prompts to indicate the data that should be entered.

（3） Parameter setting

The instrument isIn the set state,Upper Channel1Digital display function prompt,通道2Display the set value;In working condition,Four channel measurement values are displayed simultaneously.
If during the setting process12Do not change parameters for seconds,The instrument automatically returns to operation.
pressEnKey, channel1display-Cd-,通道2display800Using ▲ or▼ KeyTranslate into English 800Set as808,press againEnkey,Just entered the parameters Set status,Invalid input for other values,To prevent non-technical personnel from making mistakes.

(4)appear-LP-Please enter the number of channels for the instrument,Scope from1-4The factory value is set to4Indicating that the instrument is4Channel input instrument.

appear1-SnSelect the type of input signal for the instrument * channel

Input signal selection comparison table:

instrument prompttalisman	Input signal content	instrument prompttalisman	Input signal content
P100	Pt100	tc-t	Ttype
C100	Cu100	tc-n	Ntype
Cu50	Cu50	tc-J	Jtype
bA1	bA1	4-20	4-20mA
bA2	bA2	0-10	0-10mA
Tc-s	Stype	0-20	0-20mA
Tc-k	Ktype	1-5U	1-5V
Tc-e	Etype	0-5U	0-5V
Tc-b	Btype	0-50	0-50mV

(7) 1dot- * Channel decimal point position, range0～3, such asdot=2, the display format isXX. XX.For temperature signals such as thermistor and thermocouple, the large setting is1The display resolution is0.1℃, in1000Automatic conversion above degreeresolutionfor1℃.

(8) 1-PLThe lower limit of the linear input of the channel corresponds to the displayed value, which is the lower limit of the sensor range-1999~9999.

(9) 1-PHThe upper limit of the linear input of the channel corresponds to the displayed value, which is the upper limit of the sensor range-1999~9999.

Set the input parameters for the second to fourth channels in sequence.

(12) 1-HAChannel relay upper limit alarm set value.

(13) 1-HHChannel relay shutdown setting value.

Set the reports for the second to fourth channels in sequencejingMethod and set values.

(14)1-EoChannel zero point error correction coefficient.

Set the error correction for the second to fourth channels in sequence.

(15) Addr- Communication address refers to the instrument number and range1～99.

(16) bAUd- Communication baud rate, range1200～9600.

Parameter settings completed and displayed-EndExit the setting state and enter the running state.

5、 Warranty

If it is a manufacturing quality problem caused by the factory, the instrument will be repaired free of charge from the date of leaving the factory. If the damage is caused by improper storage and use, the repair cost will be charged. The warranty period is 18 months, and the warranty period of 3-5 years must be specified separately. Ordinary instruments can be returned within 15 days and replaced within 30 days.