Three-Parameter Combined Probe TSM803 KR-939SB3

KR-939SB3 Three-Parameter Combined Probe TSM803 (oil level temperature vibration combination) probe is a general type combined probe that is used in cooling tower fan safety monitoring system. It can be connected with a variety of general two instruments, or computer data acquisition and control system (DCS, PLC, etc.).

This is applied to the fan gear box combined probe for safe operation of monitoring, in its internal integrated measuring temperature, oil level, vibration signal sensing, conversion and transmission circuit of direct output and the security parameters corresponding to the 4 ~ 20mA standard current signal, can be matched with a variety of general-purpose two meter or computer digital acquisition monitoring system.

The probe temperature measurement with platinum resistance sensor and semiconductor integrated device; level measurement using a capacitive sensing principle; sensor for measuring  vibration, mechanical vibration acceleration signal acquisition, band-pass filter, an integral and true effective value through the amplifier (RMS) converter, the vibrationwaveform in the effective bandwidth of it effective value conversion; finally, the oil temperature, vibration generated by the 4 ~ 20mA output.

Main technical performance and indicators

Measurement range of lubricating oil temperature:0～100 ℃ ，

Compreh-ensive error of temperature measurement:±1℃

Oil level measurement characteristics:

Measurement range of lube oil level:0～50㎜（10 mm for the gear box under normal oil level oil limit position）, 

Maximum error of oil level measurement： <= ±1㎜

Ambient temperature from -40 to 65 C（Extreme temperature resistance from -50 to 150 C）

Vibration measurement characteristics:

Range of vibration measurement:0～20 ㎜/s ，The measurement output is proportional to the effective value of the vibration velocity (RMS). Frequency range of vibration measurement: 10～1000HZ, Maximum error of vibration measurement: <=±1㎜/s

Signal output characteristics:

Active current type output:DC/4～20mA ，Requirements for passive resistive load

Maximum load resistance:< 300 Ohm

Supply characteristics of power supply:

Working voltage：DC/24V±4V，

Maximum protection voltage:DC/30V ，

Rated current：DC/80mA, 

Maximum instantaneous working current:120mA，

Internal voltage Ambient temperature range:－20～80℃，

Ambient humidity range：0～100％（The port is sealed with 704 silicone rubber seals）

Electrical connections:

Environmental temperature range: -20 to 80°C,

Environmental humidity range: 0 to 100% (ports sealed with 704 silicone rubber).

Electrical connection:

5-wire 6-terminal connection:

 1# +V: +24V power supply;

2# G: connected with the shell can be connected to the shield;

3# -V: Public ground wire;

4# T: temperature signal output;

5# A: vibration signal output;

6# L: oil level signal output.

Typical wiring see [Fig. 2] Schematic diagram of probe wiring principle.