KR939SB3 three parameter combination (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 vibration waveform 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

• External and installation structures;

KR939SB3 three parameter combination probe, the probe is an external thread form, is installed in the threaded installation hole of the fan reduction box, and the probe rod is inserted into the reduction box, so as to get the lubricating oil temperature, the lubricating oil level and the box vibration signal in the reduction box, and complete the transformation output. Thread specifications and probe inserts need to be declared at the time of order. See Figure1.

[figure 1] exterior pattern

• Temperature measurement characteristics;

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：

Two four bit terminals：+24V power supply、GND、It 、t-COM、Io、o-COM、Iv、v-COM：It temperature current signal output；Io oil level current signal output；Iv vibration current signal output：The typical connection refer to the schematic diagram of the connection principle of the probe

JM-B-3Z-02-02-200智能振動(dòng)監(jiān)測(cè)保護(hù)儀
智能轉(zhuǎn)速表HZS-04
一體化振動(dòng)溫度變送器VRT-2T
正反轉(zhuǎn)監(jiān)測(cè)保護(hù)儀VB-Z470B（S2184）
一體化振動(dòng)變送器VIB-100
CS-1-G-075-03-01轉(zhuǎn)速探頭
VB-Z9500振動(dòng)速度傳感器
VB-Z500B 旋轉(zhuǎn)機(jī)械狀態(tài)監(jiān)測(cè)保護(hù)表
VB-Z8600超速（轉(zhuǎn)速）校驗(yàn)儀
VB-Z8901振動(dòng)校驗(yàn)儀
HZD-B-S振動(dòng)變送器
HZD-B-5X一體化振動(dòng)變送器
VB-Z470正反轉(zhuǎn)監(jiān)測(cè)儀
VB-Z440轉(zhuǎn)速監(jiān)測(cè)儀
VB-Z470智能反轉(zhuǎn)速監(jiān)測(cè)表
XZD-YB 一體化防爆振動(dòng)變送器
CD-21-T振動(dòng)速度傳感器
CD系列速度傳感器CD21-C CD21-S
TS-V-211智能振動(dòng)溫度監(jiān)測(cè)儀
HZS-04T-S掛壁式智能反轉(zhuǎn)速表
振動(dòng)烈度監(jiān)測(cè)保護(hù)儀（壁掛式）
SWZQ-3A風(fēng)機(jī)監(jiān)控報(bào)警器
JM-B-3Z智能振動(dòng)監(jiān)測(cè)保護(hù)儀
HZD-W/L-F 型振動(dòng)/烈度監(jiān)測(cè)保護(hù)儀
CZJ-B振動(dòng)監(jiān)測(cè)保護(hù)儀
CZJ-B2/B3/B4 智能振動(dòng)監(jiān)視儀監(jiān)控儀
CZJ-B3系列振動(dòng)監(jiān)視保護(hù)儀
MLI-2001雙通道振動(dòng)監(jiān)控儀
HZD-W/L-F智能振動(dòng)監(jiān)控儀
CZJ-3N振動(dòng)監(jiān)測(cè)保護(hù)儀
HZD-W/L型四通道振動(dòng)監(jiān)控儀
RDXZ-2/2N/2NA軸振動(dòng)監(jiān)視儀
UT312 測(cè)振儀
CZJ-B系列振動(dòng)監(jiān)視保護(hù)儀
DYZ-L型振動(dòng)烈度監(jiān)控儀
DYZ-Z型振動(dòng)烈度監(jiān)控
振動(dòng)數(shù)顯報(bào)警器ＫＹＳＸ－２０００
振動(dòng)組合探頭ＫＹＺＤ－３０００
三參數(shù)組合探頭KR－939SB3
SDJ-101位移振動(dòng)保護(hù)變送器
SDJ-301軸向位移變送器
VB-Z230，VB-Z230AN振動(dòng)變送器
普林斯頓PR-9200機(jī)殼振動(dòng)變送器
JK9301B01一體化振動(dòng)變送器
SDJ-302軸位置保護(hù)變送器
TD-9200A 一體化振動(dòng)變送器
VRT-2（T）型振動(dòng)速度（及溫度）變送器
SWZT-1F/A分體式振動(dòng)溫度變送器
KR-939SB3型一體化
KR-939SB4型一體化四參數(shù)組合探頭
ST-3振動(dòng)速度傳感器
HZD-B-9F 振動(dòng)變送器
HZD-B-6兩線制一體化振動(dòng)變送器
HZD-B-Ⅰ型振動(dòng)變送器
HZD-B-S振動(dòng)變送器
HZD-Z-7型軸振動(dòng)變送器（帶觸點(diǎn)輸出）
HZD-B-9型振動(dòng)變送器
HZD-B-5T 一體化防爆振動(dòng)變送器
HZD-B-8T/HZD-B-8B/振動(dòng)變送器
HZD-B-4一體化振動(dòng)變送器
HZD-B-1 振動(dòng)變送器
HZD-B-8一體化振動(dòng)變送器
HZD-B-5一體化振動(dòng)變送器                    
HZD-B-9/HZD-B-9F振動(dòng)變送器

KR－939SB3特點(diǎn)：

二線制振動(dòng)速度傳感器SDJ-SG-2
振動(dòng)速度傳感器HD-ST-2
HD-ST-3振動(dòng)速度傳感器
YD9200A系列一體化振動(dòng)變送器
ZHJ-402一體化振動(dòng)溫度變送器
ZHJ-201振動(dòng)溫度傳感器
JM-C-7F正反轉(zhuǎn)速監(jiān)測(cè)儀
JM-B-3Z/N振動(dòng)監(jiān)測(cè)儀
JM-C-3轉(zhuǎn)速監(jiān)測(cè)儀
JM-B-3Z振動(dòng)轉(zhuǎn)速監(jiān)測(cè)保護(hù)儀
JM-B-7 智能振動(dòng)監(jiān)測(cè)保護(hù)儀（雙通道）
振動(dòng)變送器ST-3
ST-2振動(dòng)速度傳感器
SG-2振動(dòng)傳感器
ZD-01振動(dòng)變送器
ZD-02型烈度振動(dòng)變送器
ZD-03型一體化防爆振動(dòng)變送器
ZD-03A一體化振動(dòng)變送器
ZD-05一體化振動(dòng)溫度變送器
ZDI-01型軸振動(dòng)變送器
YC-DO型脹差變送器
YZ-DO型軸向位移變送器

CZY-01型轉(zhuǎn)速變送器
YTD-1型位移變送器
殼振動(dòng)速度傳感器
壓電式一體化振動(dòng)變送器
一體化振動(dòng)傳感器
ICP壓電加速度傳感器
一體化帶顯示振動(dòng)變送器